H.2-28i-29
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IR 05000305/2012005
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NG-13-0102, Response to Request for Additional Information, License Amendment Request to Adopt National Fire Protection Association Standard 805, Performance-Based Standard for Fire Protection for Light Water Reactor Generating Plants
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WM 16-0008, Wolf Creek Generating Station, Redacted Version of Revision 29 to Updated Safety Analysis Report, Chapter 6.0 - Engineered Safety Features
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RC-14-0032, Virgil C. Summer Unit 1, License Amendment Request LAR-14-02392, Request for NRC Approval of Proposed Changes to Emergency Action Levels. Attachments Iii, Iv, V & Vi: Technical Bases for Proposed EALs (Clean Copy), NEI 99-01 Revision 6 EA
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NL-08-009, Indian Point Energy Center - Hydrogeologic Site Investigation Report - Appendix H Through I
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LER-1989-016, :on 891107,during Severe Thunderstorm,Lightning Struck Site,Causing Scram & HPCS Low Water Level Channels to Trip.Design Change Package Issued to Install Lightning Dissipation Sys on Vulnerable Structures
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label: 05000416/LER-1989-016, :on 891107,during Severe Thunderstorm,Lightning Struck Site,Causing Scram & HPCS Low Water Level Channels to Trip.Design Change Package Issued to Install Lightning Dissipation Sys on Vulnerable Structures
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Individual Involved
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label: 05000316/LER-1985-043, Resubmitted LER 85-043-00:on 851227,auxiliary Bldg Ventilation Grab Sample Not Obtained within Tech Spec Time Constraints.Caused by Personnel Error.Administrative Action Taken W/Individual Involved
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IA-86-669, Partial Response to FOIA Request for Info Re Generic Safety Issues & Gimcs.Forwards App C Document.App B & C Documents Available in PDR
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ST-HL-AE-5333, Forwards Response to NRC Bulletin 96-001, Control Rod Insertion Problems
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3F1295-22, Forwards Evaluation Results Re Insp Rept 50-302/95-22.Rept Included Review of Unauthorized Make-Up Tank Evolutions of 940904-05 & Verified Other Make-up Tank Info Recently Given to Util
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Weld Failure,Allowing Liner to Be Drawn Into Pump Impeller.Part 21 Related
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label: 05000412/LER-1989-006, :on 890116,component Cooling Pump C Exhibited Sudden Loss of Flow & Immediately Secured.Caused by Expansion Joint Liner/Weld Failure,Allowing Liner to Be Drawn Into Pump Impeller.Part 21 Related
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LER-1989-019-01, :on 890830,discovered That Five Doors Requiring Monthly Functional Tests,Per Tech Specs,Not Included on Surveillance Test.Caused by Deficiency in Methodology & Refs Used During Surveillance
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label: 05000277/LER-1989-019-01, :on 890830,discovered That Five Doors Requiring Monthly Functional Tests,Per Tech Specs,Not Included on Surveillance Test.Caused by Deficiency in Methodology & Refs Used During Surveillance
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LER-1988-036, :on 881018,unanalyzed Conditions Identified Re Loading & Sequencing of Loads on safety-related Electrical Distribution Sys.Caused by Inadequate Design Control & Review Program at Time of Original Design
type: Subject
label: 05000259/LER-1988-036, :on 881018,unanalyzed Conditions Identified Re Loading & Sequencing of Loads on safety-related Electrical Distribution Sys.Caused by Inadequate Design Control & Review Program at Time of Original Design
page: https://kanterella.com/05000259/LER-2D1988-2D036-2C_-3Aon_881018-2Cunanalyzed_Conditions_Identified_Re_Loading_-26_Sequencing_of_Loads_on_safety-2Drelated_Electrical_Distribution_Sys.Caused_by_Inadequ…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1988-036, :on 881018,unanalyzed Conditions Identified Re Loading & Sequencing of Loads on safety-related Electrical Distribution Sys.Caused by Inadequate Design Control & Review Program at Time of Original Design

LER-1989-011-02, :on 890503,determined That Emergency Equipment Cooling Water anti-siphon Check Valves Have Potential for Transporting Uncontrolled & Unfiltered Secondary Containment Atmosphere to Outside Atmoshere
type: Subject
label: 05000259/LER-1989-011-02, :on 890503,determined That Emergency Equipment Cooling Water anti-siphon Check Valves Have Potential for Transporting Uncontrolled & Unfiltered Secondary Containment Atmosphere to Outside Atmoshere
page: https://kanterella.com/05000259/LER-2D1989-2D011-2D02-2C_-3Aon_890503-2Cdetermined_That_Emergency_Equipment_Cooling_Water_anti-2Dsiphon_Check_Valves_Have_Potential_for_Transporting_Uncontrolled_-26_Un…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1989-011-02, :on 890503,determined That Emergency Equipment Cooling Water anti-siphon Check Valves Have Potential for Transporting Uncontrolled & Unfiltered Secondary Containment Atmosphere to Outside Atmoshere

LER-1989-013, :on 890503,train B Control Room Isolation Signal Received in Main Control Room.Caused by Operator Bumping Radiation Monitor Pump Motor Breaker While Changing Recorder Chart Paper.Chart Paper Replaced
type: Subject
label: 05000327/LER-1989-013, :on 890503,train B Control Room Isolation Signal Received in Main Control Room.Caused by Operator Bumping Radiation Monitor Pump Motor Breaker While Changing Recorder Chart Paper.Chart Paper Replaced
page: https://kanterella.com/05000327/LER-2D1989-2D013-2C_-3Aon_890503-2Ctrain_B_Control_Room_Isolation_Signal_Received_in_Main_Control_Room.Caused_by_Operator_Bumping_Radiation_Monitor_Pump_Motor_Breaker_W…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1989-013, :on 890503,train B Control Room Isolation Signal Received in Main Control Room.Caused by Operator Bumping Radiation Monitor Pump Motor Breaker While Changing Recorder Chart Paper.Chart Paper Replaced

LER-1989-019, :on 890502,overspeed Trip Device Malfunctioned During Weekly Turbine Trip Device Operability Test.When Button Pushed Turbine Tripped,Resulting in Reactor Trip. Caused by Defective Weld Joint.Weld Repaired
type: Subject
label: 05000425/LER-1989-019, :on 890502,overspeed Trip Device Malfunctioned During Weekly Turbine Trip Device Operability Test.When Button Pushed Turbine Tripped,Resulting in Reactor Trip. Caused by Defective Weld Joint.Weld Repaired
page: https://kanterella.com/05000425/LER-2D1989-2D019-2C_-3Aon_890502-2Coverspeed_Trip_Device_Malfunctioned_During_Weekly_Turbine_Trip_Device_Operability_Test.When_Button_Pushed_Turbine_Tripped-2CResulting…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000425/LER-1989-019, :on 890502,overspeed Trip Device Malfunctioned During Weekly Turbine Trip Device Operability Test.When Button Pushed Turbine Tripped,Resulting in Reactor Trip. Caused by Defective Weld Joint.Weld Repaired

LER-1989-021, :on 890615,automatic Actuation of Inboard & Outboard RWCU Sys Portion of Primary Containment Isolation Sys Occurred.Caused by Air in Sensing Lines of RWCU Sys Flow Sensors.Lines Bled to Eliminate Air
type: Subject
label: 05000293/LER-1989-021, :on 890615,automatic Actuation of Inboard & Outboard RWCU Sys Portion of Primary Containment Isolation Sys Occurred.Caused by Air in Sensing Lines of RWCU Sys Flow Sensors.Lines Bled to Eliminate Air
page: https://kanterella.com/05000293/LER-2D1989-2D021-2C_-3Aon_890615-2Cautomatic_Actuation_of_Inboard_-26_Outboard_RWCU_Sys_Portion_of_Primary_Containment_Isolation_Sys_Occurred.Caused_by_Air_in_Sensing_L…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1989-021, :on 890615,automatic Actuation of Inboard & Outboard RWCU Sys Portion of Primary Containment Isolation Sys Occurred.Caused by Air in Sensing Lines of RWCU Sys Flow Sensors.Lines Bled to Eliminate Air

LER-1989-016, :on 890427,radwaste in Transit Not Properly Posted.Caused by Failure of Prework Briefing to Discuss Disposition of Mop Heads & Failure of Technician to Tag Bag. Checklist Will Be Developed
type: Subject
label: 05000412/LER-1989-016, :on 890427,radwaste in Transit Not Properly Posted.Caused by Failure of Prework Briefing to Discuss Disposition of Mop Heads & Failure of Technician to Tag Bag. Checklist Will Be Developed
page: https://kanterella.com/05000412/LER-2D1989-2D016-2C_-3Aon_890427-2Cradwaste_in_Transit_Not_Properly_Posted.Caused_by_Failure_of_Prework_Briefing_to_Discuss_Disposition_of_Mop_Heads_-26_Failure_of_Tech…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1989-016, :on 890427,radwaste in Transit Not Properly Posted.Caused by Failure of Prework Briefing to Discuss Disposition of Mop Heads & Failure of Technician to Tag Bag. Checklist Will Be Developed

05000302/LER-1989-025, :on 890629,plant Separated from Normal Offsite Power Source.Electrical Storm Was in Progress.Caused by Electrical Fault in 230 Kv Switchyard.Damaged Current Transformer Replaced
type: Subject
page: https://kanterella.com/05000302/LER-2D1989-2D025-2C_-3Aon_890629-2Cplant_Separated_from_Normal_Offsite_Power_Source.Electrical_Storm_Was_in_Progress.Caused_by_Electrical_Fault_in_230_Kv_Switchyard.Dam…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000302/LER-1989-025, :on 890629,plant Separated from Normal Offsite Power Source.Electrical Storm Was in Progress.Caused by Electrical Fault in 230 Kv Switchyard.Damaged Current Transformer Replaced

LER-1989-012, :on 890427,technicians Failed to Identify & Block Trip Signal to Train a 4-kV Emergency Bus Feeder Breaker,Causing Loss of Power to Train a Emergency Bus. Operators Counseled & Relay Testing Evaluated
type: Subject
label: 05000412/LER-1989-012, :on 890427,technicians Failed to Identify & Block Trip Signal to Train a 4-kV Emergency Bus Feeder Breaker,Causing Loss of Power to Train a Emergency Bus. Operators Counseled & Relay Testing Evaluated
page: https://kanterella.com/05000412/LER-2D1989-2D012-2C_-3Aon_890427-2Ctechnicians_Failed_to_Identify_-26_Block_Trip_Signal_to_Train_a_4-2DkV_Emergency_Bus_Feeder_Breaker-2CCausing_Loss_of_Power_to_Train_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1989-012, :on 890427,technicians Failed to Identify & Block Trip Signal to Train a 4-kV Emergency Bus Feeder Breaker,Causing Loss of Power to Train a Emergency Bus. Operators Counseled & Relay Testing Evaluated

05000341/LER-1989-013, :on 890624,reactor Bldg HVAC Isolated & Standby Gas Treatment Sys Automatically Started.Caused by Personnel Error.Potential Design Change Written to Improve Testability at Panel
type: Subject
page: https://kanterella.com/05000341/LER-2D1989-2D013-2C_-3Aon_890624-2Creactor_Bldg_HVAC_Isolated_-26_Standby_Gas_Treatment_Sys_Automatically_Started.Caused_by_Personnel_Error.Potential_Design_Change_Writ…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1989-013, :on 890624,reactor Bldg HVAC Isolated & Standby Gas Treatment Sys Automatically Started.Caused by Personnel Error.Potential Design Change Written to Improve Testability at Panel

LER-1989-002, :on 890228 & 0303,unplanned ESF Actuations Occurred.Caused by Shield Breakage of Coaxial Cable & Technician Inadvertent Push of ESF Actuation Push Button, Respectively.Cable Replaced
type: Subject
label: 05000483/LER-1989-002, :on 890228 & 0303,unplanned ESF Actuations Occurred.Caused by Shield Breakage of Coaxial Cable & Technician Inadvertent Push of ESF Actuation Push Button, Respectively.Cable Replaced
page: https://kanterella.com/05000483/LER-2D1989-2D002-2C_-3Aon_890228_-26_0303-2Cunplanned_ESF_Actuations_Occurred.Caused_by_Shield_Breakage_of_Coaxial_Cable_-26_Technician_Inadvertent_Push_of_ESF_Actuatio…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1989-002, :on 890228 & 0303,unplanned ESF Actuations Occurred.Caused by Shield Breakage of Coaxial Cable & Technician Inadvertent Push of ESF Actuation Push Button, Respectively.Cable Replaced

ML20247H704
type: Subject
page: https://kanterella.com/ML20247H704
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20247H704

LER-1989-013, :on 890814,MSIV B21F022B Failed to Close Upon Demand from Automatic & Remote Manual Actuation Signals. Caused by Elastomer Seat Matl Extruding Into Exhaust Port Vent Hole.Dual Valves Replaced.Part 21 Related
type: Subject
label: 05000416/LER-1989-013, :on 890814,MSIV B21F022B Failed to Close Upon Demand from Automatic & Remote Manual Actuation Signals. Caused by Elastomer Seat Matl Extruding Into Exhaust Port Vent Hole.Dual Valves Replaced.Part 21 Related
page: https://kanterella.com/05000416/LER-2D1989-2D013-2C_-3Aon_890814-2CMSIV_B21F022B_Failed_to_Close_Upon_Demand_from_Automatic_-26_Remote_Manual_Actuation_Signals._Caused_by_Elastomer_Seat_Matl_Extruding…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000416/LER-1989-013, :on 890814,MSIV B21F022B Failed to Close Upon Demand from Automatic & Remote Manual Actuation Signals. Caused by Elastomer Seat Matl Extruding Into Exhaust Port Vent Hole.Dual Valves Replaced.Part 21 Related

LER-1989-021, :on 890427,during Refueling,Unplanned ESF Actuation Occurred.Caused by Power Transient to Several Trip Cards Resulting from Shorting of Test Connection.Rhr Shutdown Cooling Restored & Actuation Reset
type: Subject
label: 05000458/LER-1989-021, :on 890427,during Refueling,Unplanned ESF Actuation Occurred.Caused by Power Transient to Several Trip Cards Resulting from Shorting of Test Connection.Rhr Shutdown Cooling Restored & Actuation Reset
page: https://kanterella.com/05000458/LER-2D1989-2D021-2C_-3Aon_890427-2Cduring_Refueling-2CUnplanned_ESF_Actuation_Occurred.Caused_by_Power_Transient_to_Several_Trip_Cards_Resulting_from_Shorting_of_Test_C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000458/LER-1989-021, :on 890427,during Refueling,Unplanned ESF Actuation Occurred.Caused by Power Transient to Several Trip Cards Resulting from Shorting of Test Connection.Rhr Shutdown Cooling Restored & Actuation Reset

G Levels.Valve Controllers fine-tuned
type: Subject
label: 05000327/LER-1988-047, :on 881225,erratic Feedwater Controls Caused Feedwater Isolation on hi-hi Steam Generator (S/G) Level & Resulted in Reactor Trip.Caused by Difficulty in Controlling S/G Levels.Valve Controllers fine-tuned
page: https://kanterella.com/05000327/LER-2D1988-2D047-2C_-3Aon_881225-2Cerratic_Feedwater_Controls_Caused_Feedwater_Isolation_on_hi-2Dhi_Steam_Generator_-28S/G-29_Level_-26_Resulted_in_Reactor_Trip.Caused_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1988-047, :on 881225,erratic Feedwater Controls Caused Feedwater Isolation on hi-hi Steam Generator (S/G) Level & Resulted in Reactor Trip.Caused by Difficulty in Controlling S/G Levels.Valve Controllers fine-tuned

All Licensed Operators
type: Subject
label: 05000412/LER-1989-019, :on 890622,plant Shut Down Due to Tube Leak in Steam Generator C.Caused by Operating Shift Performing Numerous Concurrent Tasks While Controlling Steam Generator Levels.Event Reviewed W/All Licensed Operators
page: https://kanterella.com/05000412/LER-2D1989-2D019-2C_-3Aon_890622-2Cplant_Shut_Down_Due_to_Tube_Leak_in_Steam_Generator_C.Caused_by_Operating_Shift_Performing_Numerous_Concurrent_Tasks_While_Controllin…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1989-019, :on 890622,plant Shut Down Due to Tube Leak in Steam Generator C.Caused by Operating Shift Performing Numerous Concurrent Tasks While Controlling Steam Generator Levels.Event Reviewed W/All Licensed Operators

LER-1989-012, :on 890414,radiation Monitor on Fuel Handling Bldg Exhaust Air Duct Went Into High Alarm & Actuated HVAC Sys.Caused by Clogged Filter on Radiation Monitor.Sample Lines from Duct to Monitor Will Be Checked
type: Subject
label: 05000499/LER-1989-012, :on 890414,radiation Monitor on Fuel Handling Bldg Exhaust Air Duct Went Into High Alarm & Actuated HVAC Sys.Caused by Clogged Filter on Radiation Monitor.Sample Lines from Duct to Monitor Will Be Checked
page: https://kanterella.com/05000499/LER-2D1989-2D012-2C_-3Aon_890414-2Cradiation_Monitor_on_Fuel_Handling_Bldg_Exhaust_Air_Duct_Went_Into_High_Alarm_-26_Actuated_HVAC_Sys.Caused_by_Clogged_Filter_on_Radia…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000499/LER-1989-012, :on 890414,radiation Monitor on Fuel Handling Bldg Exhaust Air Duct Went Into High Alarm & Actuated HVAC Sys.Caused by Clogged Filter on Radiation Monitor.Sample Lines from Duct to Monitor Will Be Checked

LER-1988-048, :on 880822,noted That Shrinkage of Boraflex Neutron Absorbing Matl Could Cause Increase in Reactivity, Per NRC Info Notice 87-043.Caused by Design Deficiency.Util & Westinghouse Performed Analyses
type: Subject
label: 05000369/LER-1988-048, :on 880822,noted That Shrinkage of Boraflex Neutron Absorbing Matl Could Cause Increase in Reactivity, Per NRC Info Notice 87-043.Caused by Design Deficiency.Util & Westinghouse Performed Analyses
page: https://kanterella.com/05000369/LER-2D1988-2D048-2C_-3Aon_880822-2Cnoted_That_Shrinkage_of_Boraflex_Neutron_Absorbing_Matl_Could_Cause_Increase_in_Reactivity-2C_Per_NRC_Info_Notice_87-2D043.Caused_by_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1988-048, :on 880822,noted That Shrinkage of Boraflex Neutron Absorbing Matl Could Cause Increase in Reactivity, Per NRC Info Notice 87-043.Caused by Design Deficiency.Util & Westinghouse Performed Analyses

LER-1989-030, :on 890617,pressure Transmitter Root Valve for Penetration Valve Leakage Control Sys Found Closed.Caused by Personnel Error & Misapplication of Test Tagging Procedure. Root Valve Opened & Control Sys Restored
type: Subject
label: 05000458/LER-1989-030, :on 890617,pressure Transmitter Root Valve for Penetration Valve Leakage Control Sys Found Closed.Caused by Personnel Error & Misapplication of Test Tagging Procedure. Root Valve Opened & Control Sys Restored
page: https://kanterella.com/05000458/LER-2D1989-2D030-2C_-3Aon_890617-2Cpressure_Transmitter_Root_Valve_for_Penetration_Valve_Leakage_Control_Sys_Found_Closed.Caused_by_Personnel_Error_-26_Misapplication_o…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000458/LER-1989-030, :on 890617,pressure Transmitter Root Valve for Penetration Valve Leakage Control Sys Found Closed.Caused by Personnel Error & Misapplication of Test Tagging Procedure. Root Valve Opened & Control Sys Restored

LER-1989-025, :on 890805,HPCI Sys Declared Inoperable & 7-day Tech Spec Limiting Condition for Operation Entered.Caused by Failure of Gland Seal Condenser Blower Motor to Start.Blower Motor Brushes Replaced & Blower Tested
type: Subject
label: 05000293/LER-1989-025, :on 890805,HPCI Sys Declared Inoperable & 7-day Tech Spec Limiting Condition for Operation Entered.Caused by Failure of Gland Seal Condenser Blower Motor to Start.Blower Motor Brushes Replaced & Blower Tested
page: https://kanterella.com/05000293/LER-2D1989-2D025-2C_-3Aon_890805-2CHPCI_Sys_Declared_Inoperable_-26_7-2Dday_Tech_Spec_Limiting_Condition_for_Operation_Entered.Caused_by_Failure_of_Gland_Seal_Condenser…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1989-025, :on 890805,HPCI Sys Declared Inoperable & 7-day Tech Spec Limiting Condition for Operation Entered.Caused by Failure of Gland Seal Condenser Blower Motor to Start.Blower Motor Brushes Replaced & Blower Tested

Original Sys Design Identified During NRC Insp NRC Insp on 870511-0619.Caused by Inadequate Design. Reduction of Diesel Generator Room Temps Being Pursued
type: Subject
label: 05000298/LER-1989-007, :on 890217 Svc Water Sys Flowrate Concerns Associated W/ Original Sys Design Identified During NRC Insp NRC Insp on 870511-0619.Caused by Inadequate Design. Reduction of Diesel Generator Room Temps Being Pursued
page: https://kanterella.com/05000298/LER-2D1989-2D007-2C_-3Aon_890217_Svc_Water_Sys_Flowrate_Concerns_Associated_W/_Original_Sys_Design_Identified_During_NRC_Insp_NRC_Insp_on_870511-2D0619.Caused_by_Inadeq…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1989-007, :on 890217 Svc Water Sys Flowrate Concerns Associated W/ Original Sys Design Identified During NRC Insp NRC Insp on 870511-0619.Caused by Inadequate Design. Reduction of Diesel Generator Room Temps Being Pursued

LER-1989-018-01, :on 890619,discovered That Both Trains of Auxiliary Bldg Gas Treatment Sys (ABGTS) Automatic Actuation Could Have Been Rendered Inoperable.Caused by Removal of Radiation Monitor During Testing
type: Subject
label: 05000327/LER-1989-018-01, :on 890619,discovered That Both Trains of Auxiliary Bldg Gas Treatment Sys (ABGTS) Automatic Actuation Could Have Been Rendered Inoperable.Caused by Removal of Radiation Monitor During Testing
page: https://kanterella.com/05000327/LER-2D1989-2D018-2D01-2C_-3Aon_890619-2Cdiscovered_That_Both_Trains_of_Auxiliary_Bldg_Gas_Treatment_Sys_-28ABGTS-29_Automatic_Actuation_Could_Have_Been_Rendered_Inopera…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1989-018-01, :on 890619,discovered That Both Trains of Auxiliary Bldg Gas Treatment Sys (ABGTS) Automatic Actuation Could Have Been Rendered Inoperable.Caused by Removal of Radiation Monitor During Testing

LER-1989-005-01, :on 890416,motor-operated Valve MOV-RW-116B & Auxiliary River Water Sys Supply Valve to Normal River Water Header B Opened & Header Pressure Dropped to Low Setpoint. Caused by Failed Reach Rod.Valve Closed
type: Subject
label: 05000334/LER-1989-005-01, :on 890416,motor-operated Valve MOV-RW-116B & Auxiliary River Water Sys Supply Valve to Normal River Water Header B Opened & Header Pressure Dropped to Low Setpoint. Caused by Failed Reach Rod.Valve Closed
page: https://kanterella.com/05000334/LER-2D1989-2D005-2D01-2C_-3Aon_890416-2Cmotor-2Doperated_Valve_MOV-2DRW-2D116B_-26_Auxiliary_River_Water_Sys_Supply_Valve_to_Normal_River_Water_Header_B_Opened_-26_Head…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1989-005-01, :on 890416,motor-operated Valve MOV-RW-116B & Auxiliary River Water Sys Supply Valve to Normal River Water Header B Opened & Header Pressure Dropped to Low Setpoint. Caused by Failed Reach Rod.Valve Closed

Reactor Pressure at 150 Psig.Caused by High Steam Flow Isolation Signal.No Corrective Measures Considered Necessary
type: Subject
label: 05000324/LER-1989-010-02, :on 890619,unit Received Group 1 Isolation While in Hot Shutdown W/Reactor Pressure at 150 Psig.Caused by High Steam Flow Isolation Signal.No Corrective Measures Considered Necessary
page: https://kanterella.com/05000324/LER-2D1989-2D010-2D02-2C_-3Aon_890619-2Cunit_Received_Group_1_Isolation_While_in_Hot_Shutdown_W/Reactor_Pressure_at_150_Psig.Caused_by_High_Steam_Flow_Isolation_Signal.…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000324/LER-1989-010-02, :on 890619,unit Received Group 1 Isolation While in Hot Shutdown W/Reactor Pressure at 150 Psig.Caused by High Steam Flow Isolation Signal.No Corrective Measures Considered Necessary

LER-1989-017, :on 890407,determined That intermediate-range Monitor Surveillance Test Procedures Not Performed within Allowable Tech Spec Schedule Tolerance.Caused by Scheduling Error.Manual Changes Will Be Verified
type: Subject
label: 05000458/LER-1989-017, :on 890407,determined That intermediate-range Monitor Surveillance Test Procedures Not Performed within Allowable Tech Spec Schedule Tolerance.Caused by Scheduling Error.Manual Changes Will Be Verified
page: https://kanterella.com/05000458/LER-2D1989-2D017-2C_-3Aon_890407-2Cdetermined_That_intermediate-2Drange_Monitor_Surveillance_Test_Procedures_Not_Performed_within_Allowable_Tech_Spec_Schedule_Tolerance…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000458/LER-1989-017, :on 890407,determined That intermediate-range Monitor Surveillance Test Procedures Not Performed within Allowable Tech Spec Schedule Tolerance.Caused by Scheduling Error.Manual Changes Will Be Verified

LER-1989-002-02, :on 890220,two Valves Which Isolate Flow from Discharge Header of Lhsi Pumps to Cold Legs of RCS Simultaneously Closed During Hydrostatic Tests.Caused by Need to Provide Overpressure Protection
type: Subject
label: 05000339/LER-1989-002-02, :on 890220,two Valves Which Isolate Flow from Discharge Header of Lhsi Pumps to Cold Legs of RCS Simultaneously Closed During Hydrostatic Tests.Caused by Need to Provide Overpressure Protection
page: https://kanterella.com/05000339/LER-2D1989-2D002-2D02-2C_-3Aon_890220-2Ctwo_Valves_Which_Isolate_Flow_from_Discharge_Header_of_Lhsi_Pumps_to_Cold_Legs_of_RCS_Simultaneously_Closed_During_Hydrostatic_T…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000339/LER-1989-002-02, :on 890220,two Valves Which Isolate Flow from Discharge Header of Lhsi Pumps to Cold Legs of RCS Simultaneously Closed During Hydrostatic Tests.Caused by Need to Provide Overpressure Protection

05000298/LER-1989-012, :on 890407,actuation of ESF Group Isolations Occurred Subsequent to Planned Manual Scram.Caused by design.State-of-the-art Digital Turbine Control Sys Being Installed
type: Subject
page: https://kanterella.com/05000298/LER-2D1989-2D012-2C_-3Aon_890407-2Cactuation_of_ESF_Group_Isolations_Occurred_Subsequent_to_Planned_Manual_Scram.Caused_by_design.State-2Dof-2Dthe-2Dart_Digital_Turbine…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1989-012, :on 890407,actuation of ESF Group Isolations Occurred Subsequent to Planned Manual Scram.Caused by design.State-of-the-art Digital Turbine Control Sys Being Installed

LER-1988-033, :on 881214,determined That Valve Body Erosion Generic Concern on Both Units.Erosion Resulted from Flow Induced Cavitation Due to Throttling Isolation Valves Below Design Limit.Instructions Re RHR Loops Revised
type: Subject
label: 05000325/LER-1988-033, :on 881214,determined That Valve Body Erosion Generic Concern on Both Units.Erosion Resulted from Flow Induced Cavitation Due to Throttling Isolation Valves Below Design Limit.Instructions Re RHR Loops Revised
page: https://kanterella.com/05000325/LER-2D1988-2D033-2C_-3Aon_881214-2Cdetermined_That_Valve_Body_Erosion_Generic_Concern_on_Both_Units.Erosion_Resulted_from_Flow_Induced_Cavitation_Due_to_Throttling_Isol…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1988-033, :on 881214,determined That Valve Body Erosion Generic Concern on Both Units.Erosion Resulted from Flow Induced Cavitation Due to Throttling Isolation Valves Below Design Limit.Instructions Re RHR Loops Revised

LER-1988-022, :on 881013,determined That Various Pipes in Safety Injection Sys & Chemical Vol & Control Sys Collected or Trapped Gas Which Might Affect Functions of Sys.Caused by Not Completely Venting Sys After Refill
type: Subject
label: 05000338/LER-1988-022, :on 881013,determined That Various Pipes in Safety Injection Sys & Chemical Vol & Control Sys Collected or Trapped Gas Which Might Affect Functions of Sys.Caused by Not Completely Venting Sys After Refill
page: https://kanterella.com/05000338/LER-2D1988-2D022-2C_-3Aon_881013-2Cdetermined_That_Various_Pipes_in_Safety_Injection_Sys_-26_Chemical_Vol_-26_Control_Sys_Collected_or_Trapped_Gas_Which_Might_Affect_Fu…
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wiki page sort key: 05000338/LER-1988-022, :on 881013,determined That Various Pipes in Safety Injection Sys & Chemical Vol & Control Sys Collected or Trapped Gas Which Might Affect Functions of Sys.Caused by Not Completely Venting Sys After Refill

ML20246B553
type: Subject
page: https://kanterella.com/ML20246B553
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20246B553

LER-1989-011-01, :on 890527 & 0603,as-found Local Leak Rate Testing Containment Unfiltered Leakage Exceeded Tech Spec Limit.Caused by Poor wedge-to-seat Fit.Wedge Angle Changed & Valve Seats Resurfaced to Ensure Proper Seal
type: Subject
label: 05000423/LER-1989-011-01, :on 890527 & 0603,as-found Local Leak Rate Testing Containment Unfiltered Leakage Exceeded Tech Spec Limit.Caused by Poor wedge-to-seat Fit.Wedge Angle Changed & Valve Seats Resurfaced to Ensure Proper Seal
page: https://kanterella.com/05000423/LER-2D1989-2D011-2D01-2C_-3Aon_890527_-26_0603-2Cas-2Dfound_Local_Leak_Rate_Testing_Containment_Unfiltered_Leakage_Exceeded_Tech_Spec_Limit.Caused_by_Poor_wedge-2Dto-2D…
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wiki page sort key: 05000423/LER-1989-011-01, :on 890527 & 0603,as-found Local Leak Rate Testing Containment Unfiltered Leakage Exceeded Tech Spec Limit.Caused by Poor wedge-to-seat Fit.Wedge Angle Changed & Valve Seats Resurfaced to Ensure Proper Seal

Westinghouse Solid State Protection Sys Auxiliary Relays. Mod Made to Control Circuits for Valves.Relays Rewired to Use Two Pairs of Contacts.Part 21 Related
type: Subject
label: 05000412/LER-1989-023, :on 890804,identified Potential Generic Problem W/Westinghouse Solid State Protection Sys Auxiliary Relays. Mod Made to Control Circuits for Valves.Relays Rewired to Use Two Pairs of Contacts.Part 21 Related
page: https://kanterella.com/05000412/LER-2D1989-2D023-2C_-3Aon_890804-2Cidentified_Potential_Generic_Problem_W/Westinghouse_Solid_State_Protection_Sys_Auxiliary_Relays._Mod_Made_to_Control_Circuits_for_Val…
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wiki page sort key: 05000412/LER-1989-023, :on 890804,identified Potential Generic Problem W/Westinghouse Solid State Protection Sys Auxiliary Relays. Mod Made to Control Circuits for Valves.Relays Rewired to Use Two Pairs of Contacts.Part 21 Related

LER-1988-029, :on 881218,control Rod Group 3 Safety Rods Dropped Into Core as Result of Troubleshooting in CRD Sys Causing Reactor to Go Subcritical.Caused by Personnel Error. Maint Personnel Trained
type: Subject
label: 05000346/LER-1988-029, :on 881218,control Rod Group 3 Safety Rods Dropped Into Core as Result of Troubleshooting in CRD Sys Causing Reactor to Go Subcritical.Caused by Personnel Error. Maint Personnel Trained
page: https://kanterella.com/05000346/LER-2D1988-2D029-2C_-3Aon_881218-2Ccontrol_Rod_Group_3_Safety_Rods_Dropped_Into_Core_as_Result_of_Troubleshooting_in_CRD_Sys_Causing_Reactor_to_Go_Subcritical.Caused_by…
wiki namespace: 0
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wiki page sort key: 05000346/LER-1988-029, :on 881218,control Rod Group 3 Safety Rods Dropped Into Core as Result of Troubleshooting in CRD Sys Causing Reactor to Go Subcritical.Caused by Personnel Error. Maint Personnel Trained

05000483/LER-1989-005, :on 890518,ESF Safety Injection Actuation on Train a Received Due to Low Steamline Pressure Signal During Operational Test.Caused by Personnel Error.Procedure Revised
type: Subject
page: https://kanterella.com/05000483/LER-2D1989-2D005-2C_-3Aon_890518-2CESF_Safety_Injection_Actuation_on_Train_a_Received_Due_to_Low_Steamline_Pressure_Signal_During_Operational_Test.Caused_by_Personnel_E…
wiki namespace: 0
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wiki page sort key: 05000483/LER-1989-005, :on 890518,ESF Safety Injection Actuation on Train a Received Due to Low Steamline Pressure Signal During Operational Test.Caused by Personnel Error.Procedure Revised

Or Procedural Inadequacies.Probability of Flood Occuring During Spring of 1989 Analyzed
type: Subject
label: 05000213/LER-1989-004, :on 890125,flood Protection of Main Diesel Fuel Oil Tank Determined Inadequate.Caused by Design, Analysis &/Or Procedural Inadequacies.Probability of Flood Occuring During Spring of 1989 Analyzed
page: https://kanterella.com/05000213/LER-2D1989-2D004-2C_-3Aon_890125-2Cflood_Protection_of_Main_Diesel_Fuel_Oil_Tank_Determined_Inadequate.Caused_by_Design-2C_Analysis_-26/Or_Procedural_Inadequacies.Proba…
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wiki page sort key: 05000213/LER-1989-004, :on 890125,flood Protection of Main Diesel Fuel Oil Tank Determined Inadequate.Caused by Design, Analysis &/Or Procedural Inadequacies.Probability of Flood Occuring During Spring of 1989 Analyzed

LER-1989-010-01, :on 890323,radiation Monitor Experienced Downscale Spike Following Upscale Spike,Resulting in Unplanned ESF Actuations.Caused by Arcing from Exposed Conductors on Communication Line.Cord Taped
type: Subject
label: 05000260/LER-1989-010-01, :on 890323,radiation Monitor Experienced Downscale Spike Following Upscale Spike,Resulting in Unplanned ESF Actuations.Caused by Arcing from Exposed Conductors on Communication Line.Cord Taped
page: https://kanterella.com/05000260/LER-2D1989-2D010-2D01-2C_-3Aon_890323-2Cradiation_Monitor_Experienced_Downscale_Spike_Following_Upscale_Spike-2CResulting_in_Unplanned_ESF_Actuations.Caused_by_Arcing_f…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000260/LER-1989-010-01, :on 890323,radiation Monitor Experienced Downscale Spike Following Upscale Spike,Resulting in Unplanned ESF Actuations.Caused by Arcing from Exposed Conductors on Communication Line.Cord Taped

LER-1989-036, :on 890525,pressure Setpoint Testing of 14 Reactor Main Steam Sys Target Rock Corp Pilot Operated two- Stage Safety Relief Valves Revealed That Only One Valve Lifted within Tech Specs Limit
type: Subject
label: 05000352/LER-1989-036, :on 890525,pressure Setpoint Testing of 14 Reactor Main Steam Sys Target Rock Corp Pilot Operated two- Stage Safety Relief Valves Revealed That Only One Valve Lifted within Tech Specs Limit
page: https://kanterella.com/05000352/LER-2D1989-2D036-2C_-3Aon_890525-2Cpressure_Setpoint_Testing_of_14_Reactor_Main_Steam_Sys_Target_Rock_Corp_Pilot_Operated_two-2D_Stage_Safety_Relief_Valves_Revealed_Tha…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1989-036, :on 890525,pressure Setpoint Testing of 14 Reactor Main Steam Sys Target Rock Corp Pilot Operated two- Stage Safety Relief Valves Revealed That Only One Valve Lifted within Tech Specs Limit

LER-1989-012, :on 890330,while Performing Maint,Technician Inadvertently Placed 2RE-2562A & 2RE-2562C in Purge Instead of Activating Paper Drive on 2RE-2562A.Caused by Technician Failing to Pay Attention to Detail
type: Subject
label: 05000425/LER-1989-012, :on 890330,while Performing Maint,Technician Inadvertently Placed 2RE-2562A & 2RE-2562C in Purge Instead of Activating Paper Drive on 2RE-2562A.Caused by Technician Failing to Pay Attention to Detail
page: https://kanterella.com/05000425/LER-2D1989-2D012-2C_-3Aon_890330-2Cwhile_Performing_Maint-2CTechnician_Inadvertently_Placed_2RE-2D2562A_-26_2RE-2D2562C_in_Purge_Instead_of_Activating_Paper_Drive_on_2R…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000425/LER-1989-012, :on 890330,while Performing Maint,Technician Inadvertently Placed 2RE-2562A & 2RE-2562C in Purge Instead of Activating Paper Drive on 2RE-2562A.Caused by Technician Failing to Pay Attention to Detail

LER-1989-019, :on 890314,informed That Certain Electrical Equipment Located in High Energy Line Break Compartment May Not Perform Intended Safety Function,Causing Reliance on Unqualified Equipment.Environ Seals Added
type: Subject
label: 05000352/LER-1989-019, :on 890314,informed That Certain Electrical Equipment Located in High Energy Line Break Compartment May Not Perform Intended Safety Function,Causing Reliance on Unqualified Equipment.Environ Seals Added
page: https://kanterella.com/05000352/LER-2D1989-2D019-2C_-3Aon_890314-2Cinformed_That_Certain_Electrical_Equipment_Located_in_High_Energy_Line_Break_Compartment_May_Not_Perform_Intended_Safety_Function-2CC…
wiki namespace: 0
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wiki page sort key: 05000352/LER-1989-019, :on 890314,informed That Certain Electrical Equipment Located in High Energy Line Break Compartment May Not Perform Intended Safety Function,Causing Reliance on Unqualified Equipment.Environ Seals Added

LER-1988-025, :on 881129,inadvertent Initiation of Steam & Feedwater Rupture Control Sys Occurred While Filling & Draining Steam Generators.Caused by Personnel Error.Standing Order Issued to Provide Control Band
type: Subject
label: 05000346/LER-1988-025, :on 881129,inadvertent Initiation of Steam & Feedwater Rupture Control Sys Occurred While Filling & Draining Steam Generators.Caused by Personnel Error.Standing Order Issued to Provide Control Band
page: https://kanterella.com/05000346/LER-2D1988-2D025-2C_-3Aon_881129-2Cinadvertent_Initiation_of_Steam_-26_Feedwater_Rupture_Control_Sys_Occurred_While_Filling_-26_Draining_Steam_Generators.Caused_by_Pers…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000346/LER-1988-025, :on 881129,inadvertent Initiation of Steam & Feedwater Rupture Control Sys Occurred While Filling & Draining Steam Generators.Caused by Personnel Error.Standing Order Issued to Provide Control Band

LER-1989-007-01, :on 890509,surveillance of Fire Barrier Penetrations Missed Due to Misinterpretation of Barriers. Fire Watch Established & Required Surveillance Completed & Ref Manual Revised
type: Subject
label: 05000333/LER-1989-007-01, :on 890509,surveillance of Fire Barrier Penetrations Missed Due to Misinterpretation of Barriers. Fire Watch Established & Required Surveillance Completed & Ref Manual Revised
page: https://kanterella.com/05000333/LER-2D1989-2D007-2D01-2C_-3Aon_890509-2Csurveillance_of_Fire_Barrier_Penetrations_Missed_Due_to_Misinterpretation_of_Barriers._Fire_Watch_Established_-26_Required_Surve…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000333/LER-1989-007-01, :on 890509,surveillance of Fire Barrier Penetrations Missed Due to Misinterpretation of Barriers. Fire Watch Established & Required Surveillance Completed & Ref Manual Revised

LER-1989-003-01, :on 890311,actuation of Control Room Emergency Breathing Air Pressurization Sys Occurred.Caused by Electrical Failure High of a Train Control Room Radiation Monitor.Control Room Radiation Level Verified
type: Subject
label: 05000334/LER-1989-003-01, :on 890311,actuation of Control Room Emergency Breathing Air Pressurization Sys Occurred.Caused by Electrical Failure High of a Train Control Room Radiation Monitor.Control Room Radiation Level Verified
page: https://kanterella.com/05000334/LER-2D1989-2D003-2D01-2C_-3Aon_890311-2Cactuation_of_Control_Room_Emergency_Breathing_Air_Pressurization_Sys_Occurred.Caused_by_Electrical_Failure_High_of_a_Train_Contr…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1989-003-01, :on 890311,actuation of Control Room Emergency Breathing Air Pressurization Sys Occurred.Caused by Electrical Failure High of a Train Control Room Radiation Monitor.Control Room Radiation Level Verified

LER-1988-033, :on 881004,unplanned Reactor Trip Signal Generated Due to Reactor Protection Sys (RPS) Channel I Instrument Failure During RPS Channel II Calibr.Possibly Caused by Component Aging
type: Subject
label: 05000327/LER-1988-033, :on 881004,unplanned Reactor Trip Signal Generated Due to Reactor Protection Sys (RPS) Channel I Instrument Failure During RPS Channel II Calibr.Possibly Caused by Component Aging
page: https://kanterella.com/05000327/LER-2D1988-2D033-2C_-3Aon_881004-2Cunplanned_Reactor_Trip_Signal_Generated_Due_to_Reactor_Protection_Sys_-28RPS-29_Channel_I_Instrument_Failure_During_RPS_Channel_II_Ca…
wiki namespace: 0
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wiki page sort key: 05000327/LER-1988-033, :on 881004,unplanned Reactor Trip Signal Generated Due to Reactor Protection Sys (RPS) Channel I Instrument Failure During RPS Channel II Calibr.Possibly Caused by Component Aging

LER-1989-005, :on 890314,instrument Air Boundary Check Valve Determined by Test to Allow Excessive Back Leakage.Caused by Matl Wear Causing Poor Seating Surface.Check Valve Isolated & New Flow Path Was Initiated
type: Subject
label: 05000317/LER-1989-005, :on 890314,instrument Air Boundary Check Valve Determined by Test to Allow Excessive Back Leakage.Caused by Matl Wear Causing Poor Seating Surface.Check Valve Isolated & New Flow Path Was Initiated
page: https://kanterella.com/05000317/LER-2D1989-2D005-2C_-3Aon_890314-2Cinstrument_Air_Boundary_Check_Valve_Determined_by_Test_to_Allow_Excessive_Back_Leakage.Caused_by_Matl_Wear_Causing_Poor_Seating_Surfa…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000317/LER-1989-005, :on 890314,instrument Air Boundary Check Valve Determined by Test to Allow Excessive Back Leakage.Caused by Matl Wear Causing Poor Seating Surface.Check Valve Isolated & New Flow Path Was Initiated

LER-1987-038, :on 870815,automatic Initiation of Div I Emergency Equipment Cooling Water (EECW) Occurred.Caused by Inadequate Sys Design for Pressure compensation.Motor- Operated Valves Installed to EECW Makeup Tanks
type: Subject
label: 05000341/LER-1987-038, :on 870815,automatic Initiation of Div I Emergency Equipment Cooling Water (EECW) Occurred.Caused by Inadequate Sys Design for Pressure compensation.Motor- Operated Valves Installed to EECW Makeup Tanks
page: https://kanterella.com/05000341/LER-2D1987-2D038-2C_-3Aon_870815-2Cautomatic_Initiation_of_Div_I_Emergency_Equipment_Cooling_Water_-28EECW-29_Occurred.Caused_by_Inadequate_Sys_Design_for_Pressure_comp…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1987-038, :on 870815,automatic Initiation of Div I Emergency Equipment Cooling Water (EECW) Occurred.Caused by Inadequate Sys Design for Pressure compensation.Motor- Operated Valves Installed to EECW Makeup Tanks

LER-1998-021, :on 980803,noted Failure to Meet IST Requirements for Diesel Fuel Oil Day Tank Level Control Valves.Caused by Inadequate Licensing Basis Documentation Retrievability.Subject Valves Were Tested
type: Subject
label: 05000271/LER-1998-021, :on 980803,noted Failure to Meet IST Requirements for Diesel Fuel Oil Day Tank Level Control Valves.Caused by Inadequate Licensing Basis Documentation Retrievability.Subject Valves Were Tested
page: https://kanterella.com/05000271/LER-2D1998-2D021-2C_-3Aon_980803-2Cnoted_Failure_to_Meet_IST_Requirements_for_Diesel_Fuel_Oil_Day_Tank_Level_Control_Valves.Caused_by_Inadequate_Licensing_Basis_Documen…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000271/LER-1998-021, :on 980803,noted Failure to Meet IST Requirements for Diesel Fuel Oil Day Tank Level Control Valves.Caused by Inadequate Licensing Basis Documentation Retrievability.Subject Valves Were Tested

05000413/LER-1987-031, :on 870729,vent Gas Radiation Monitor Found Inoperable.Caused by non-conservative High Radiation Alarm Setpoint.Setpoint Returned to Original Setting & Policy Will Be Clarified
type: Subject
page: https://kanterella.com/05000413/LER-2D1987-2D031-2C_-3Aon_870729-2Cvent_Gas_Radiation_Monitor_Found_Inoperable.Caused_by_non-2Dconservative_High_Radiation_Alarm_Setpoint.Setpoint_Returned_to_Original_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1987-031, :on 870729,vent Gas Radiation Monitor Found Inoperable.Caused by non-conservative High Radiation Alarm Setpoint.Setpoint Returned to Original Setting & Policy Will Be Clarified

LER-1987-042, :on 870812,reactor Scrammed on High Flux on APRM Channels B & D.Caused by Personnel Failure to Follow Procedures.Training Provided for Control & Instrumentation & Startup Personnel
type: Subject
label: 05000461/LER-1987-042, :on 870812,reactor Scrammed on High Flux on APRM Channels B & D.Caused by Personnel Failure to Follow Procedures.Training Provided for Control & Instrumentation & Startup Personnel
page: https://kanterella.com/05000461/LER-2D1987-2D042-2C_-3Aon_870812-2Creactor_Scrammed_on_High_Flux_on_APRM_Channels_B_-26_D.Caused_by_Personnel_Failure_to_Follow_Procedures.Training_Provided_for_Control…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-042, :on 870812,reactor Scrammed on High Flux on APRM Channels B & D.Caused by Personnel Failure to Follow Procedures.Training Provided for Control & Instrumentation & Startup Personnel

LER-1987-044, :on 870730,violation of Plant Tech Spec 4.3.1.1,Table 4.3.1.1-1,Item 2a Occurred.Caused by Personnel Error Resulting from Procedural Deficiency.Procedure Revised to Ensure Thorough Channel Check
type: Subject
label: 05000461/LER-1987-044, :on 870730,violation of Plant Tech Spec 4.3.1.1,Table 4.3.1.1-1,Item 2a Occurred.Caused by Personnel Error Resulting from Procedural Deficiency.Procedure Revised to Ensure Thorough Channel Check
page: https://kanterella.com/05000461/LER-2D1987-2D044-2C_-3Aon_870730-2Cviolation_of_Plant_Tech_Spec_4.3.1.1-2CTable_4.3.1.1-2D1-2CItem_2a_Occurred.Caused_by_Personnel_Error_Resulting_from_Procedural_Defic…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-044, :on 870730,violation of Plant Tech Spec 4.3.1.1,Table 4.3.1.1-1,Item 2a Occurred.Caused by Personnel Error Resulting from Procedural Deficiency.Procedure Revised to Ensure Thorough Channel Check

Emergency Diesel Generator Speed During Containment Spray Pump Startup Following Phase B Containment Isolation.Caused by Design Error.Procedures Established
type: Subject
label: 05000327/LER-1987-052, :on 870723,potential Problem Identified W/ Emergency Diesel Generator Speed During Containment Spray Pump Startup Following Phase B Containment Isolation.Caused by Design Error.Procedures Established
page: https://kanterella.com/05000327/LER-2D1987-2D052-2C_-3Aon_870723-2Cpotential_Problem_Identified_W/_Emergency_Diesel_Generator_Speed_During_Containment_Spray_Pump_Startup_Following_Phase_B_Containment_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1987-052, :on 870723,potential Problem Identified W/ Emergency Diesel Generator Speed During Containment Spray Pump Startup Following Phase B Containment Isolation.Caused by Design Error.Procedures Established

LER-1987-016, :on 870625,monthly Sampling & Analysis of Unit Vent Gaseous Effluents Not Performed as Required by Tech Specs.Caused by Personnel Error.All Technicians Instructed to Follow Appropriate Surveillance Procedures
type: Subject
label: 05000483/LER-1987-016, :on 870625,monthly Sampling & Analysis of Unit Vent Gaseous Effluents Not Performed as Required by Tech Specs.Caused by Personnel Error.All Technicians Instructed to Follow Appropriate Surveillance Procedures
page: https://kanterella.com/05000483/LER-2D1987-2D016-2C_-3Aon_870625-2Cmonthly_Sampling_-26_Analysis_of_Unit_Vent_Gaseous_Effluents_Not_Performed_as_Required_by_Tech_Specs.Caused_by_Personnel_Error.All_Te…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1987-016, :on 870625,monthly Sampling & Analysis of Unit Vent Gaseous Effluents Not Performed as Required by Tech Specs.Caused by Personnel Error.All Technicians Instructed to Follow Appropriate Surveillance Procedures

LER-1987-043, :on 871116,hydraulic Snubbers HSS-21 & HSS-95 Found to Be Low on Hydraulic Fluid & Declared Inoperable on Testing.Caused by Displaced O-rings.Snubbers Rebuilt, Retested & Reinstalled
type: Subject
label: 05000245/LER-1987-043, :on 871116,hydraulic Snubbers HSS-21 & HSS-95 Found to Be Low on Hydraulic Fluid & Declared Inoperable on Testing.Caused by Displaced O-rings.Snubbers Rebuilt, Retested & Reinstalled
page: https://kanterella.com/05000245/LER-2D1987-2D043-2C_-3Aon_871116-2Chydraulic_Snubbers_HSS-2D21_-26_HSS-2D95_Found_to_Be_Low_on_Hydraulic_Fluid_-26_Declared_Inoperable_on_Testing.Caused_by_Displaced_O-…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000245/LER-1987-043, :on 871116,hydraulic Snubbers HSS-21 & HSS-95 Found to Be Low on Hydraulic Fluid & Declared Inoperable on Testing.Caused by Displaced O-rings.Snubbers Rebuilt, Retested & Reinstalled

LER-1987-042-01, :on 871117,Tech Spec Surveillance Requiring Measuring Detector Plateau Curve for Each intermediate-range & power-range Neutron Detector Not Performed.Caused by Procedural Inadequacy.New Procedure Written
type: Subject
label: 05000423/LER-1987-042-01, :on 871117,Tech Spec Surveillance Requiring Measuring Detector Plateau Curve for Each intermediate-range & power-range Neutron Detector Not Performed.Caused by Procedural Inadequacy.New Procedure Written
page: https://kanterella.com/05000423/LER-2D1987-2D042-2D01-2C_-3Aon_871117-2CTech_Spec_Surveillance_Requiring_Measuring_Detector_Plateau_Curve_for_Each_intermediate-2Drange_-26_power-2Drange_Neutron_Detect…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1987-042-01, :on 871117,Tech Spec Surveillance Requiring Measuring Detector Plateau Curve for Each intermediate-range & power-range Neutron Detector Not Performed.Caused by Procedural Inadequacy.New Procedure Written

LER-1987-012, :on 871102,high Head Safety Injection Sys Cold Leg Injection Valves Closed.Caused by Inadequate Training & Personnel Error.Mgt Reemphasized Proper Use of Procedures, Annunciators & Attention to Details
type: Subject
label: 05000498/LER-1987-012, :on 871102,high Head Safety Injection Sys Cold Leg Injection Valves Closed.Caused by Inadequate Training & Personnel Error.Mgt Reemphasized Proper Use of Procedures, Annunciators & Attention to Details
page: https://kanterella.com/05000498/LER-2D1987-2D012-2C_-3Aon_871102-2Chigh_Head_Safety_Injection_Sys_Cold_Leg_Injection_Valves_Closed.Caused_by_Inadequate_Training_-26_Personnel_Error.Mgt_Reemphasized_Pr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000498/LER-1987-012, :on 871102,high Head Safety Injection Sys Cold Leg Injection Valves Closed.Caused by Inadequate Training & Personnel Error.Mgt Reemphasized Proper Use of Procedures, Annunciators & Attention to Details

Inoperable Level Transmitter.Root Valve Reopened
type: Subject
label: 05000414/LER-1987-030-01, :on 871105,feedwater Isolation Signal Generated in hi-hi Steam Generator.Caused by Technician Failure to Correctly Identify Root Valve Associated W/Inoperable Level Transmitter.Root Valve Reopened
page: https://kanterella.com/05000414/LER-2D1987-2D030-2D01-2C_-3Aon_871105-2Cfeedwater_Isolation_Signal_Generated_in_hi-2Dhi_Steam_Generator.Caused_by_Technician_Failure_to_Correctly_Identify_Root_Valve_As…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1987-030-01, :on 871105,feedwater Isolation Signal Generated in hi-hi Steam Generator.Caused by Technician Failure to Correctly Identify Root Valve Associated W/Inoperable Level Transmitter.Root Valve Reopened

LER-1987-012-01, :on 871116,reactor Tripped on Low Steam Generator Level.Caused by Failure of Feedwater Regulating Valve to Respond to Closing Signals from Control Board in Automatic or Manual Modes
type: Subject
label: 05000336/LER-1987-012-01, :on 871116,reactor Tripped on Low Steam Generator Level.Caused by Failure of Feedwater Regulating Valve to Respond to Closing Signals from Control Board in Automatic or Manual Modes
page: https://kanterella.com/05000336/LER-2D1987-2D012-2D01-2C_-3Aon_871116-2Creactor_Tripped_on_Low_Steam_Generator_Level.Caused_by_Failure_of_Feedwater_Regulating_Valve_to_Respond_to_Closing_Signals_from_…
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wiki page sort key: 05000336/LER-1987-012-01, :on 871116,reactor Tripped on Low Steam Generator Level.Caused by Failure of Feedwater Regulating Valve to Respond to Closing Signals from Control Board in Automatic or Manual Modes

ML20237D984
type: Subject
page: https://kanterella.com/ML20237D984
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20237D984

ML20237K685
type: Subject
page: https://kanterella.com/ML20237K685
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20237K685

05000461/LER-1987-065, :on 871104,reactor Tripped Due to Decay of Containment Air Header Pressure During Div 2 Surveillance. Caused by Inadequate Surveillance Procedure & Operator Error.Rev Planned
type: Subject
page: https://kanterella.com/05000461/LER-2D1987-2D065-2C_-3Aon_871104-2Creactor_Tripped_Due_to_Decay_of_Containment_Air_Header_Pressure_During_Div_2_Surveillance._Caused_by_Inadequate_Surveillance_Procedur…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-065, :on 871104,reactor Tripped Due to Decay of Containment Air Header Pressure During Div 2 Surveillance. Caused by Inadequate Surveillance Procedure & Operator Error.Rev Planned

05000259/LER-1987-029-01, :on 871105,ESF Actuations Occurred During Mod Activities.Caused by Personnel Error.Individuals Involved Cautioned
type: Subject
page: https://kanterella.com/05000259/LER-2D1987-2D029-2D01-2C_-3Aon_871105-2CESF_Actuations_Occurred_During_Mod_Activities.Caused_by_Personnel_Error.Individuals_Involved_Cautioned
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1987-029-01, :on 871105,ESF Actuations Occurred During Mod Activities.Caused by Personnel Error.Individuals Involved Cautioned

05000267/LER-1987-025, :on 871030,offsite Electrical Power Lost When Reserve Auxiliary Transformer (RAT) Deluge Actuated.Caused by Installation Error.Rat Deluge Sys Reset & Electrical Power Restored
type: Subject
page: https://kanterella.com/05000267/LER-2D1987-2D025-2C_-3Aon_871030-2Coffsite_Electrical_Power_Lost_When_Reserve_Auxiliary_Transformer_-28RAT-29_Deluge_Actuated.Caused_by_Installation_Error.Rat_Deluge_Sy…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000267/LER-1987-025, :on 871030,offsite Electrical Power Lost When Reserve Auxiliary Transformer (RAT) Deluge Actuated.Caused by Installation Error.Rat Deluge Sys Reset & Electrical Power Restored

LER-1987-031, :on 871020,leaks Discovered Through Clamp on RCS Loop a Cold Leg Bypass Isolation Valves 2RCS*44,2RCS*37 & 2RCS*46 in Excess of Tech Spec Limits.Cause Undetermined. Valves Repaired or Replaced
type: Subject
label: 05000412/LER-1987-031, :on 871020,leaks Discovered Through Clamp on RCS Loop a Cold Leg Bypass Isolation Valves 2RCS*44,2RCS*37 & 2RCS*46 in Excess of Tech Spec Limits.Cause Undetermined. Valves Repaired or Replaced
page: https://kanterella.com/05000412/LER-2D1987-2D031-2C_-3Aon_871020-2Cleaks_Discovered_Through_Clamp_on_RCS_Loop_a_Cold_Leg_Bypass_Isolation_Valves_2RCS-2A44-2C2RCS-2A37_-26_2RCS-2A46_in_Excess_of_Tech_S…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1987-031, :on 871020,leaks Discovered Through Clamp on RCS Loop a Cold Leg Bypass Isolation Valves 2RCS*44,2RCS*37 & 2RCS*46 in Excess of Tech Spec Limits.Cause Undetermined. Valves Repaired or Replaced

LER-1987-023-01, :on 870708,insp of Core Spray Sys Pump Anchors Revealed Nonconformance to Original Design & Same Condition Suspected to Exist for LPCI Sys Pump Anchors.Caused by Nonconforming Condition.Support Sys Modified
type: Subject
label: 05000245/LER-1987-023-01, :on 870708,insp of Core Spray Sys Pump Anchors Revealed Nonconformance to Original Design & Same Condition Suspected to Exist for LPCI Sys Pump Anchors.Caused by Nonconforming Condition.Support Sys Modified
page: https://kanterella.com/05000245/LER-2D1987-2D023-2D01-2C_-3Aon_870708-2Cinsp_of_Core_Spray_Sys_Pump_Anchors_Revealed_Nonconformance_to_Original_Design_-26_Same_Condition_Suspected_to_Exist_for_LPCI_Sy…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000245/LER-1987-023-01, :on 870708,insp of Core Spray Sys Pump Anchors Revealed Nonconformance to Original Design & Same Condition Suspected to Exist for LPCI Sys Pump Anchors.Caused by Nonconforming Condition.Support Sys Modified

LER-1987-012, :on 870706,reactor Scram on High Main Coolant Pressure Occurred During Main Turbine Overspeed Trip Test. Caused by Personnel Error.Personnel Instructed on Need for Communications & Headphones Installed in Hall
type: Subject
label: 05000029/LER-1987-012, :on 870706,reactor Scram on High Main Coolant Pressure Occurred During Main Turbine Overspeed Trip Test. Caused by Personnel Error.Personnel Instructed on Need for Communications & Headphones Installed in Hall
page: https://kanterella.com/05000029/LER-2D1987-2D012-2C_-3Aon_870706-2Creactor_Scram_on_High_Main_Coolant_Pressure_Occurred_During_Main_Turbine_Overspeed_Trip_Test._Caused_by_Personnel_Error.Personnel_Ins…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000029/LER-1987-012, :on 870706,reactor Scram on High Main Coolant Pressure Occurred During Main Turbine Overspeed Trip Test. Caused by Personnel Error.Personnel Instructed on Need for Communications & Headphones Installed in Hall

LER-1987-015-01, :on 870709,reactor Protection Sys (RPS) Circuit Protector Tripped de-energizing RPS Bus a Causing RPS Half Scram.Caused by Mods Craftsmen Working Near Circuit Jarring Panel.Craftsmen Counseled
type: Subject
label: 05000259/LER-1987-015-01, :on 870709,reactor Protection Sys (RPS) Circuit Protector Tripped de-energizing RPS Bus a Causing RPS Half Scram.Caused by Mods Craftsmen Working Near Circuit Jarring Panel.Craftsmen Counseled
page: https://kanterella.com/05000259/LER-2D1987-2D015-2D01-2C_-3Aon_870709-2Creactor_Protection_Sys_-28RPS-29_Circuit_Protector_Tripped_de-2Denergizing_RPS_Bus_a_Causing_RPS_Half_Scram.Caused_by_Mods_Craft…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1987-015-01, :on 870709,reactor Protection Sys (RPS) Circuit Protector Tripped de-energizing RPS Bus a Causing RPS Half Scram.Caused by Mods Craftsmen Working Near Circuit Jarring Panel.Craftsmen Counseled

LER-1987-007-01, :on 871012,unplanned Actuation of Auxiliary Feedwater Actuation Sys (Afas) Experienced.Caused by Simultaneous Deenergization of Two Afas Sensor Cabinets. New Labels Made to Inform of Cabinet Locations
type: Subject
label: 05000318/LER-1987-007-01, :on 871012,unplanned Actuation of Auxiliary Feedwater Actuation Sys (Afas) Experienced.Caused by Simultaneous Deenergization of Two Afas Sensor Cabinets. New Labels Made to Inform of Cabinet Locations
page: https://kanterella.com/05000318/LER-2D1987-2D007-2D01-2C_-3Aon_871012-2Cunplanned_Actuation_of_Auxiliary_Feedwater_Actuation_Sys_-28Afas-29_Experienced.Caused_by_Simultaneous_Deenergization_of_Two_Afa…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000318/LER-1987-007-01, :on 871012,unplanned Actuation of Auxiliary Feedwater Actuation Sys (Afas) Experienced.Caused by Simultaneous Deenergization of Two Afas Sensor Cabinets. New Labels Made to Inform of Cabinet Locations

LER-1987-010-01, :on 870630,outboard Containment Isolation Valves Received Isolation Signals While RWCU Sys Isolation Control Relay Being Replaced.Caused by Inadequate Blocking Method.Involved Operators Counseled
type: Subject
label: 05000277/LER-1987-010-01, :on 870630,outboard Containment Isolation Valves Received Isolation Signals While RWCU Sys Isolation Control Relay Being Replaced.Caused by Inadequate Blocking Method.Involved Operators Counseled
page: https://kanterella.com/05000277/LER-2D1987-2D010-2D01-2C_-3Aon_870630-2Coutboard_Containment_Isolation_Valves_Received_Isolation_Signals_While_RWCU_Sys_Isolation_Control_Relay_Being_Replaced.Caused_by…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1987-010-01, :on 870630,outboard Containment Isolation Valves Received Isolation Signals While RWCU Sys Isolation Control Relay Being Replaced.Caused by Inadequate Blocking Method.Involved Operators Counseled

LER-1987-043, :on 870628,improper Performance of Containment Pressure Surveillance Discovered.Caused by Personnel Error. Temporary Change to Procedure 1400-1 Incorporated Into Applicable Data Sheets
type: Subject
label: 05000424/LER-1987-043, :on 870628,improper Performance of Containment Pressure Surveillance Discovered.Caused by Personnel Error. Temporary Change to Procedure 1400-1 Incorporated Into Applicable Data Sheets
page: https://kanterella.com/05000424/LER-2D1987-2D043-2C_-3Aon_870628-2Cimproper_Performance_of_Containment_Pressure_Surveillance_Discovered.Caused_by_Personnel_Error._Temporary_Change_to_Procedure_1400-2D…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000424/LER-1987-043, :on 870628,improper Performance of Containment Pressure Surveillance Discovered.Caused by Personnel Error. Temporary Change to Procedure 1400-1 Incorporated Into Applicable Data Sheets

Operable Spare Module
type: Subject
label: 05000267/LER-1987-022, :on 870929,Loop I Shutdown Actuation Initiated by Plant Protective Sys (Pps).Caused by Failure of Logic Chip Z40 in PPS Module CS-1A1.Module Containing Failed Chip Replaced W/Operable Spare Module
page: https://kanterella.com/05000267/LER-2D1987-2D022-2C_-3Aon_870929-2CLoop_I_Shutdown_Actuation_Initiated_by_Plant_Protective_Sys_-28Pps-29.Caused_by_Failure_of_Logic_Chip_Z40_in_PPS_Module_CS-2D1A1.Modu…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000267/LER-1987-022, :on 870929,Loop I Shutdown Actuation Initiated by Plant Protective Sys (Pps).Caused by Failure of Logic Chip Z40 in PPS Module CS-1A1.Module Containing Failed Chip Replaced W/Operable Spare Module

LER-1987-024-01, :on 870930,unplanned RWCU Isolation Occurred. Caused by Degraded Electrical Connections on Temp Switch. Isolation Reset & Sys Returned to Svc.Connections on Temp Switch Repaired
type: Subject
label: 05000259/LER-1987-024-01, :on 870930,unplanned RWCU Isolation Occurred. Caused by Degraded Electrical Connections on Temp Switch. Isolation Reset & Sys Returned to Svc.Connections on Temp Switch Repaired
page: https://kanterella.com/05000259/LER-2D1987-2D024-2D01-2C_-3Aon_870930-2Cunplanned_RWCU_Isolation_Occurred._Caused_by_Degraded_Electrical_Connections_on_Temp_Switch._Isolation_Reset_-26_Sys_Returned_to…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1987-024-01, :on 870930,unplanned RWCU Isolation Occurred. Caused by Degraded Electrical Connections on Temp Switch. Isolation Reset & Sys Returned to Svc.Connections on Temp Switch Repaired

LER-1987-024, :on 870625,plant Shut Down Due to Inoperabilty of Reactor Recirculation Sys Loop.Caused by Loss of Spring Pressure on Brush Due to Excessively Worn Brush.Increased Insp Frequency Implemented
type: Subject
label: 05000341/LER-1987-024, :on 870625,plant Shut Down Due to Inoperabilty of Reactor Recirculation Sys Loop.Caused by Loss of Spring Pressure on Brush Due to Excessively Worn Brush.Increased Insp Frequency Implemented
page: https://kanterella.com/05000341/LER-2D1987-2D024-2C_-3Aon_870625-2Cplant_Shut_Down_Due_to_Inoperabilty_of_Reactor_Recirculation_Sys_Loop.Caused_by_Loss_of_Spring_Pressure_on_Brush_Due_to_Excessively_W…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1987-024, :on 870625,plant Shut Down Due to Inoperabilty of Reactor Recirculation Sys Loop.Caused by Loss of Spring Pressure on Brush Due to Excessively Worn Brush.Increased Insp Frequency Implemented

LER-1987-043, :on 870924,improper Monitoring of New Effluent Release Point Occurred.On 871005,air Sample Cartridge Not Delivered for Analysis Due to Fan A-546 Being Off.Events Caused by Personnel Error.Air Samples Taken
type: Subject
label: 05000312/LER-1987-043, :on 870924,improper Monitoring of New Effluent Release Point Occurred.On 871005,air Sample Cartridge Not Delivered for Analysis Due to Fan A-546 Being Off.Events Caused by Personnel Error.Air Samples Taken
page: https://kanterella.com/05000312/LER-2D1987-2D043-2C_-3Aon_870924-2Cimproper_Monitoring_of_New_Effluent_Release_Point_Occurred.On_871005-2Cair_Sample_Cartridge_Not_Delivered_for_Analysis_Due_to_Fan_A-2…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1987-043, :on 870924,improper Monitoring of New Effluent Release Point Occurred.On 871005,air Sample Cartridge Not Delivered for Analysis Due to Fan A-546 Being Off.Events Caused by Personnel Error.Air Samples Taken

LER-1989-002-01, :on 890213,reactor Trip Occurred Due to Feedwater Regulating Valve (MFRV) Malfunction.Caused by Failure of electro-pneumatic transducer.Electro-pneumatic Transducers for Valves Replaced
type: Subject
label: 05000334/LER-1989-002-01, :on 890213,reactor Trip Occurred Due to Feedwater Regulating Valve (MFRV) Malfunction.Caused by Failure of electro-pneumatic transducer.Electro-pneumatic Transducers for Valves Replaced
page: https://kanterella.com/05000334/LER-2D1989-2D002-2D01-2C_-3Aon_890213-2Creactor_Trip_Occurred_Due_to_Feedwater_Regulating_Valve_-28MFRV-29_Malfunction.Caused_by_Failure_of_electro-2Dpneumatic_transduc…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1989-002-01, :on 890213,reactor Trip Occurred Due to Feedwater Regulating Valve (MFRV) Malfunction.Caused by Failure of electro-pneumatic transducer.Electro-pneumatic Transducers for Valves Replaced

LER-1989-001-04, :on 890212,reactor Trip Signals Generated from Electromagnetic Interference When Spike Received on source- Range Channel N-31.Caused by Noise Induced Into Channel Cabling Due to Welding.Welding Suspended
type: Subject
label: 05000328/LER-1989-001-04, :on 890212,reactor Trip Signals Generated from Electromagnetic Interference When Spike Received on source- Range Channel N-31.Caused by Noise Induced Into Channel Cabling Due to Welding.Welding Suspended
page: https://kanterella.com/05000328/LER-2D1989-2D001-2D04-2C_-3Aon_890212-2Creactor_Trip_Signals_Generated_from_Electromagnetic_Interference_When_Spike_Received_on_source-2D_Range_Channel_N-2D31.Caused_by…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1989-001-04, :on 890212,reactor Trip Signals Generated from Electromagnetic Interference When Spike Received on source- Range Channel N-31.Caused by Noise Induced Into Channel Cabling Due to Welding.Welding Suspended

LER-1987-003-04, :on 870918,RWCU Sys Isolated Unexpectedly During Troubleshooting Maint on Secondary Containment Isolation Damper.Cause Unknown.No Corrective Action Planned. Testing May Identify Corrective Actions Needed
type: Subject
label: 05000296/LER-1987-003-04, :on 870918,RWCU Sys Isolated Unexpectedly During Troubleshooting Maint on Secondary Containment Isolation Damper.Cause Unknown.No Corrective Action Planned. Testing May Identify Corrective Actions Needed
page: https://kanterella.com/05000296/LER-2D1987-2D003-2D04-2C_-3Aon_870918-2CRWCU_Sys_Isolated_Unexpectedly_During_Troubleshooting_Maint_on_Secondary_Containment_Isolation_Damper.Cause_Unknown.No_Correctiv…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000296/LER-1987-003-04, :on 870918,RWCU Sys Isolated Unexpectedly During Troubleshooting Maint on Secondary Containment Isolation Damper.Cause Unknown.No Corrective Action Planned. Testing May Identify Corrective Actions Needed

Leak Detection High Flow Instrument Process Lines.Leaking Transmitter Test Connection Repaired
type: Subject
label: 05000440/LER-1987-044, :on 870624 & 28,RCIC Sys Automatically Isolated.Caused by Pressure Oscillations in Rcic/Leak Detection High Flow Instrument Process Lines.Leaking Transmitter Test Connection Repaired
page: https://kanterella.com/05000440/LER-2D1987-2D044-2C_-3Aon_870624_-26_28-2CRCIC_Sys_Automatically_Isolated.Caused_by_Pressure_Oscillations_in_Rcic/Leak_Detection_High_Flow_Instrument_Process_Lines.Leak…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1987-044, :on 870624 & 28,RCIC Sys Automatically Isolated.Caused by Pressure Oscillations in Rcic/Leak Detection High Flow Instrument Process Lines.Leaking Transmitter Test Connection Repaired

LER-1987-008, :on 870625,control Rod 31 Dropped Into Core & Overfeed to Steam Generator 2 Occurred.Caused by Faulty Fuse & Inadequate Maint Procedure,Respectively.Fuse Replaced & Procedure Revised
type: Subject
label: 05000213/LER-1987-008, :on 870625,control Rod 31 Dropped Into Core & Overfeed to Steam Generator 2 Occurred.Caused by Faulty Fuse & Inadequate Maint Procedure,Respectively.Fuse Replaced & Procedure Revised
page: https://kanterella.com/05000213/LER-2D1987-2D008-2C_-3Aon_870625-2Ccontrol_Rod_31_Dropped_Into_Core_-26_Overfeed_to_Steam_Generator_2_Occurred.Caused_by_Faulty_Fuse_-26_Inadequate_Maint_Procedure-2CRe…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1987-008, :on 870625,control Rod 31 Dropped Into Core & Overfeed to Steam Generator 2 Occurred.Caused by Faulty Fuse & Inadequate Maint Procedure,Respectively.Fuse Replaced & Procedure Revised

LER-1989-001, :on 890204,initiated Safety Injection Via High Steam Flow Safety Injection Logic.Caused by Uneven Refilling of Steam Flow Instrumentation Lines.Safety Injecton Terminated & Plant Cooldown Proceeded
type: Subject
label: 05000286/LER-1989-001, :on 890204,initiated Safety Injection Via High Steam Flow Safety Injection Logic.Caused by Uneven Refilling of Steam Flow Instrumentation Lines.Safety Injecton Terminated & Plant Cooldown Proceeded
page: https://kanterella.com/05000286/LER-2D1989-2D001-2C_-3Aon_890204-2Cinitiated_Safety_Injection_Via_High_Steam_Flow_Safety_Injection_Logic.Caused_by_Uneven_Refilling_of_Steam_Flow_Instrumentation_Lines.…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000286/LER-1989-001, :on 890204,initiated Safety Injection Via High Steam Flow Safety Injection Logic.Caused by Uneven Refilling of Steam Flow Instrumentation Lines.Safety Injecton Terminated & Plant Cooldown Proceeded

LER-1987-045, :on 870908,fuse Removed Resulting in Loss of Dc Control Power Causing Loss of Power Supply to Swing Bus & to LPCI Loop Selection Valves.Caused by Personnel Error.Dc Control Circuitry for Bus 72C Redesigned
type: Subject
label: 05000341/LER-1987-045, :on 870908,fuse Removed Resulting in Loss of Dc Control Power Causing Loss of Power Supply to Swing Bus & to LPCI Loop Selection Valves.Caused by Personnel Error.Dc Control Circuitry for Bus 72C Redesigned
page: https://kanterella.com/05000341/LER-2D1987-2D045-2C_-3Aon_870908-2Cfuse_Removed_Resulting_in_Loss_of_Dc_Control_Power_Causing_Loss_of_Power_Supply_to_Swing_Bus_-26_to_LPCI_Loop_Selection_Valves.Caused…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1987-045, :on 870908,fuse Removed Resulting in Loss of Dc Control Power Causing Loss of Power Supply to Swing Bus & to LPCI Loop Selection Valves.Caused by Personnel Error.Dc Control Circuitry for Bus 72C Redesigned

LER-1987-009-01, :on 870618,safety Injection Pump 11 Did Not Start When Given Start Signal.Caused by Failure to Leave Ite Type 5HK250 4160V Breaker Completely Racked in & Lack of Specific Procedures for Racking Breakers
type: Subject
label: 05000282/LER-1987-009-01, :on 870618,safety Injection Pump 11 Did Not Start When Given Start Signal.Caused by Failure to Leave Ite Type 5HK250 4160V Breaker Completely Racked in & Lack of Specific Procedures for Racking Breakers
page: https://kanterella.com/05000282/LER-2D1987-2D009-2D01-2C_-3Aon_870618-2Csafety_Injection_Pump_11_Did_Not_Start_When_Given_Start_Signal.Caused_by_Failure_to_Leave_Ite_Type_5HK250_4160V_Breaker_Complete…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000282/LER-1987-009-01, :on 870618,safety Injection Pump 11 Did Not Start When Given Start Signal.Caused by Failure to Leave Ite Type 5HK250 4160V Breaker Completely Racked in & Lack of Specific Procedures for Racking Breakers

- 1-.Caused by Corrosion Induced Bonding of Pilot Valved Disc
type: Subject
label: 05000325/LER-1988-030, :on 881130,testing of Safety Relief Valves Revealed That 9 of 11 Valves Tested Lifted at Pressures Outside Tech Spec Tolerance of +/- 1%.Caused by Corrosion Induced Bonding of Pilot Valved Disc
page: https://kanterella.com/05000325/LER-2D1988-2D030-2C_-3Aon_881130-2Ctesting_of_Safety_Relief_Valves_Revealed_That_9_of_11_Valves_Tested_Lifted_at_Pressures_Outside_Tech_Spec_Tolerance_of_-2B/-2D_1-.Cau…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1988-030, :on 881130,testing of Safety Relief Valves Revealed That 9 of 11 Valves Tested Lifted at Pressures Outside Tech Spec Tolerance of +/- 1%.Caused by Corrosion Induced Bonding of Pilot Valved Disc

LER-1989-004, :on 890127,discovered Two Primary Containment Air Operated Valves Inoperable Resulting in Unit Shutdown. Caused by Pressure Drop Rate of Stored Air Supply for Valves.New Tubing Installed
type: Subject
label: 05000293/LER-1989-004, :on 890127,discovered Two Primary Containment Air Operated Valves Inoperable Resulting in Unit Shutdown. Caused by Pressure Drop Rate of Stored Air Supply for Valves.New Tubing Installed
page: https://kanterella.com/05000293/LER-2D1989-2D004-2C_-3Aon_890127-2Cdiscovered_Two_Primary_Containment_Air_Operated_Valves_Inoperable_Resulting_in_Unit_Shutdown._Caused_by_Pressure_Drop_Rate_of_Stored_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1989-004, :on 890127,discovered Two Primary Containment Air Operated Valves Inoperable Resulting in Unit Shutdown. Caused by Pressure Drop Rate of Stored Air Supply for Valves.New Tubing Installed

O Being Reported.Caused by Past Understanding of Term ESF Actuation as Applied to Diesel Generators
type: Subject
label: 05000298/LER-1987-021, :on 840624,850503,24,0730 & 0816 Unplanned Actuations of Automatic Diesel Generators Occurred W/O Being Reported.Caused by Past Understanding of Term ESF Actuation as Applied to Diesel Generators
page: https://kanterella.com/05000298/LER-2D1987-2D021-2C_-3Aon_840624-2C850503-2C24-2C0730_-26_0816_Unplanned_Actuations_of_Automatic_Diesel_Generators_Occurred_W/O_Being_Reported.Caused_by_Past_Understand…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1987-021, :on 840624,850503,24,0730 & 0816 Unplanned Actuations of Automatic Diesel Generators Occurred W/O Being Reported.Caused by Past Understanding of Term ESF Actuation as Applied to Diesel Generators

LER-1987-032, :on 870824,augmented Offgas Sys H2 Analyzer Not Calibr,Per Tech Spec.Caused by Personnel Error.Ler Will Be Required Reading for All Involved Depts to Stress Importance of Thorough Review of Plant Procedures
type: Subject
label: 05000219/LER-1987-032, :on 870824,augmented Offgas Sys H2 Analyzer Not Calibr,Per Tech Spec.Caused by Personnel Error.Ler Will Be Required Reading for All Involved Depts to Stress Importance of Thorough Review of Plant Procedures
page: https://kanterella.com/05000219/LER-2D1987-2D032-2C_-3Aon_870824-2Caugmented_Offgas_Sys_H2_Analyzer_Not_Calibr-2CPer_Tech_Spec.Caused_by_Personnel_Error.Ler_Will_Be_Required_Reading_for_All_Involved_D…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000219/LER-1987-032, :on 870824,augmented Offgas Sys H2 Analyzer Not Calibr,Per Tech Spec.Caused by Personnel Error.Ler Will Be Required Reading for All Involved Depts to Stress Importance of Thorough Review of Plant Procedures

LER-1987-013, :on 870614,loss of Normal Power Supply to Emergency Bus Occurred During Testing.Caused by Failure to Follow Procedures.Electrical Maint Procedure Will Be Revised & Personnel Will Be Instructed
type: Subject
label: 05000338/LER-1987-013, :on 870614,loss of Normal Power Supply to Emergency Bus Occurred During Testing.Caused by Failure to Follow Procedures.Electrical Maint Procedure Will Be Revised & Personnel Will Be Instructed
page: https://kanterella.com/05000338/LER-2D1987-2D013-2C_-3Aon_870614-2Closs_of_Normal_Power_Supply_to_Emergency_Bus_Occurred_During_Testing.Caused_by_Failure_to_Follow_Procedures.Electrical_Maint_Procedur…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000338/LER-1987-013, :on 870614,loss of Normal Power Supply to Emergency Bus Occurred During Testing.Caused by Failure to Follow Procedures.Electrical Maint Procedure Will Be Revised & Personnel Will Be Instructed

LER-1989-002, :on 890115,discovered That Scaffolding & Shielding Installations in East & West Penetration Rooms May Have Adverse Impact on Operability of safety-related Sys During Seismic Event.Caused by Personnel Error
type: Subject
label: 05000395/LER-1989-002, :on 890115,discovered That Scaffolding & Shielding Installations in East & West Penetration Rooms May Have Adverse Impact on Operability of safety-related Sys During Seismic Event.Caused by Personnel Error
page: https://kanterella.com/05000395/LER-2D1989-2D002-2C_-3Aon_890115-2Cdiscovered_That_Scaffolding_-26_Shielding_Installations_in_East_-26_West_Penetration_Rooms_May_Have_Adverse_Impact_on_Operability_of_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000395/LER-1989-002, :on 890115,discovered That Scaffolding & Shielding Installations in East & West Penetration Rooms May Have Adverse Impact on Operability of safety-related Sys During Seismic Event.Caused by Personnel Error

LER-1989-001-03, :on 890117,failure to Take Compensatory Measures When Both Trains of Control Room Area Ventilation Were Inoperable.Caused by Lack of Attention to Detail by Planner a in Scheduling Pending Work Request
type: Subject
label: 05000369/LER-1989-001-03, :on 890117,failure to Take Compensatory Measures When Both Trains of Control Room Area Ventilation Were Inoperable.Caused by Lack of Attention to Detail by Planner a in Scheduling Pending Work Request
page: https://kanterella.com/05000369/LER-2D1989-2D001-2D03-2C_-3Aon_890117-2Cfailure_to_Take_Compensatory_Measures_When_Both_Trains_of_Control_Room_Area_Ventilation_Were_Inoperable.Caused_by_Lack_of_Attent…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1989-001-03, :on 890117,failure to Take Compensatory Measures When Both Trains of Control Room Area Ventilation Were Inoperable.Caused by Lack of Attention to Detail by Planner a in Scheduling Pending Work Request

05000334/LER-1989-001-01, :on 890117,reactor Trip Due to Low Steam Generator Level Coincident W/Steam Flow - Feedwater Flow Mismatch.Caused by Operator Error.Operators Counseled Re Event
type: Subject
page: https://kanterella.com/05000334/LER-2D1989-2D001-2D01-2C_-3Aon_890117-2Creactor_Trip_Due_to_Low_Steam_Generator_Level_Coincident_W/Steam_Flow_-2D_Feedwater_Flow_Mismatch.Caused_by_Operator_Error.Opera…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1989-001-01, :on 890117,reactor Trip Due to Low Steam Generator Level Coincident W/Steam Flow - Feedwater Flow Mismatch.Caused by Operator Error.Operators Counseled Re Event

LER-1987-040, :on 870604,RCIC Sys Leak Detection High Steam Flow Trip Unit Noted to Be Reading Downscale.Caused by Steam Condensing in High Side Instrument Process Line of Associated Transmitter
type: Subject
label: 05000440/LER-1987-040, :on 870604,RCIC Sys Leak Detection High Steam Flow Trip Unit Noted to Be Reading Downscale.Caused by Steam Condensing in High Side Instrument Process Line of Associated Transmitter
page: https://kanterella.com/05000440/LER-2D1987-2D040-2C_-3Aon_870604-2CRCIC_Sys_Leak_Detection_High_Steam_Flow_Trip_Unit_Noted_to_Be_Reading_Downscale.Caused_by_Steam_Condensing_in_High_Side_Instrument_Pr…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1987-040, :on 870604,RCIC Sys Leak Detection High Steam Flow Trip Unit Noted to Be Reading Downscale.Caused by Steam Condensing in High Side Instrument Process Line of Associated Transmitter

http://kanterella.com/Special:URIResolver/05000369/LER-2D1988-2D005-2C_-3Aon_880323-2Cspurious_Train_a_Safety_Injection_-26_Main_Steam_Isolation_Resulting_in_Reactor_Trip_Occurred._Cause_Undetermined.…
type: Subject
label: 05000369/LER-1988-005, :on 880323,spurious Train a Safety Injection & Main Steam Isolation Resulting in Reactor Trip Occurred. Cause Undetermined.Operations Personnel Implemented Procedure AP/1/A/5500/01
page: https://kanterella.com/05000369/LER-2D1988-2D005-2C_-3Aon_880323-2Cspurious_Train_a_Safety_Injection_-26_Main_Steam_Isolation_Resulting_in_Reactor_Trip_Occurred._Cause_Undetermined.Operations_Personne…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1988-005, :on 880323,spurious Train a Safety Injection & Main Steam Isolation Resulting in Reactor Trip Occurred. Cause Undetermined.Operations Personnel Implemented Procedure AP/1/A/5500/01

ML20235S151
type: Subject
page: https://kanterella.com/ML20235S151
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20235S151

LER-1989-001, :on 890105,plant Protective Function Sys Loop Shutdown Function Unexpectedly Actuated,Causing High Primary Coolant Moisture Level.Caused by Leak in Core Support Floor Liner Cooling Tube
type: Subject
label: 05000267/LER-1989-001, :on 890105,plant Protective Function Sys Loop Shutdown Function Unexpectedly Actuated,Causing High Primary Coolant Moisture Level.Caused by Leak in Core Support Floor Liner Cooling Tube
page: https://kanterella.com/05000267/LER-2D1989-2D001-2C_-3Aon_890105-2Cplant_Protective_Function_Sys_Loop_Shutdown_Function_Unexpectedly_Actuated-2CCausing_High_Primary_Coolant_Moisture_Level.Caused_by_Le…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000267/LER-1989-001, :on 890105,plant Protective Function Sys Loop Shutdown Function Unexpectedly Actuated,Causing High Primary Coolant Moisture Level.Caused by Leak in Core Support Floor Liner Cooling Tube

LER-1989-001-02, :on 890118 & 881209,determined That Seismic Documentation Could Not Be Established for Various Positions of 4,160-volt & 480-volt safety-related Circuit Breakers. Breakers Placed in Qualified Position
type: Subject
label: 05000259/LER-1989-001-02, :on 890118 & 881209,determined That Seismic Documentation Could Not Be Established for Various Positions of 4,160-volt & 480-volt safety-related Circuit Breakers. Breakers Placed in Qualified Position
page: https://kanterella.com/05000259/LER-2D1989-2D001-2D02-2C_-3Aon_890118_-26_881209-2Cdetermined_That_Seismic_Documentation_Could_Not_Be_Established_for_Various_Positions_of_4-2C160-2Dvolt_-26_480-2Dvolt…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1989-001-02, :on 890118 & 881209,determined That Seismic Documentation Could Not Be Established for Various Positions of 4,160-volt & 480-volt safety-related Circuit Breakers. Breakers Placed in Qualified Position

LER-1987-048, :on 871203 & 05,drain Hoses Discovered Strung Through Train B Recirculation Spray Sys Cubicle & Control Bldg Equipment Room Door,Respectively.Caused by Human Error. Memo to Reinforce Correct Methods Issued
type: Subject
label: 05000423/LER-1987-048, :on 871203 & 05,drain Hoses Discovered Strung Through Train B Recirculation Spray Sys Cubicle & Control Bldg Equipment Room Door,Respectively.Caused by Human Error. Memo to Reinforce Correct Methods Issued
page: https://kanterella.com/05000423/LER-2D1987-2D048-2C_-3Aon_871203_-26_05-2Cdrain_Hoses_Discovered_Strung_Through_Train_B_Recirculation_Spray_Sys_Cubicle_-26_Control_Bldg_Equipment_Room_Door-2CRespectiv…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1987-048, :on 871203 & 05,drain Hoses Discovered Strung Through Train B Recirculation Spray Sys Cubicle & Control Bldg Equipment Room Door,Respectively.Caused by Human Error. Memo to Reinforce Correct Methods Issued

LER-1987-059, :on 870821,RWCU Containment Isolation Occurred Due to Indicated High Differential Flow.Caused by Particulate Buildup in Flow Control Valve Positioner Air Flow Restriction Orifice
type: Subject
label: 05000440/LER-1987-059, :on 870821,RWCU Containment Isolation Occurred Due to Indicated High Differential Flow.Caused by Particulate Buildup in Flow Control Valve Positioner Air Flow Restriction Orifice
page: https://kanterella.com/05000440/LER-2D1987-2D059-2C_-3Aon_870821-2CRWCU_Containment_Isolation_Occurred_Due_to_Indicated_High_Differential_Flow.Caused_by_Particulate_Buildup_in_Flow_Control_Valve_Posit…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1987-059, :on 870821,RWCU Containment Isolation Occurred Due to Indicated High Differential Flow.Caused by Particulate Buildup in Flow Control Valve Positioner Air Flow Restriction Orifice

LER-1987-006-04, :on 870528,loss of Flow Alarm in Control Room for Containment Radiation Monitor Received.Containment Purge Sys Not Immediately Secured Due to Concern Over Possible Release of Unmonitored Containment Atmosphere
type: Subject
label: 05000370/LER-1987-006-04, :on 870528,loss of Flow Alarm in Control Room for Containment Radiation Monitor Received.Containment Purge Sys Not Immediately Secured Due to Concern Over Possible Release of Unmonitored Containment Atmosphere
page: https://kanterella.com/05000370/LER-2D1987-2D006-2D04-2C_-3Aon_870528-2Closs_of_Flow_Alarm_in_Control_Room_for_Containment_Radiation_Monitor_Received.Containment_Purge_Sys_Not_Immediately_Secured_Due_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1987-006-04, :on 870528,loss of Flow Alarm in Control Room for Containment Radiation Monitor Received.Containment Purge Sys Not Immediately Secured Due to Concern Over Possible Release of Unmonitored Containment Atmosphere

LER-1987-051, :on 870828,rod Pattern Control Sys,Rod Withdrawal Limiter High Power Setpoint Channel Functional Test Not Performed within 1 Hr Prior to Control Rod Movement in Mode 1.Caused by Personnel Error
type: Subject
label: 05000461/LER-1987-051, :on 870828,rod Pattern Control Sys,Rod Withdrawal Limiter High Power Setpoint Channel Functional Test Not Performed within 1 Hr Prior to Control Rod Movement in Mode 1.Caused by Personnel Error
page: https://kanterella.com/05000461/LER-2D1987-2D051-2C_-3Aon_870828-2Crod_Pattern_Control_Sys-2CRod_Withdrawal_Limiter_High_Power_Setpoint_Channel_Functional_Test_Not_Performed_within_1_Hr_Prior_to_Contr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-051, :on 870828,rod Pattern Control Sys,Rod Withdrawal Limiter High Power Setpoint Channel Functional Test Not Performed within 1 Hr Prior to Control Rod Movement in Mode 1.Caused by Personnel Error

LER-1987-018, :on 870502,loop Isolation Valve 1-E11-F024A Would Not Fully Close Against Sys Operating Pressure.Caused by Undersized Belleville Washer Spring Pack in Valve Operator.Washer Spring Packs Replaced
type: Subject
label: 05000325/LER-1987-018, :on 870502,loop Isolation Valve 1-E11-F024A Would Not Fully Close Against Sys Operating Pressure.Caused by Undersized Belleville Washer Spring Pack in Valve Operator.Washer Spring Packs Replaced
page: https://kanterella.com/05000325/LER-2D1987-2D018-2C_-3Aon_870502-2Cloop_Isolation_Valve_1-2DE11-2DF024A_Would_Not_Fully_Close_Against_Sys_Operating_Pressure.Caused_by_Undersized_Belleville_Washer_Spri…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1987-018, :on 870502,loop Isolation Valve 1-E11-F024A Would Not Fully Close Against Sys Operating Pressure.Caused by Undersized Belleville Washer Spring Pack in Valve Operator.Washer Spring Packs Replaced

LER-1987-026, :on 871103,weekly Fire Svc Diesel Battery Test Exceeded Grace Period Allowed by Tech Spec Section 4.0.2. Caused by Personnel Error.Test Performed & Event Discussed During Maint Weekly Safety Meeting
type: Subject
label: 05000395/LER-1987-026, :on 871103,weekly Fire Svc Diesel Battery Test Exceeded Grace Period Allowed by Tech Spec Section 4.0.2. Caused by Personnel Error.Test Performed & Event Discussed During Maint Weekly Safety Meeting
page: https://kanterella.com/05000395/LER-2D1987-2D026-2C_-3Aon_871103-2Cweekly_Fire_Svc_Diesel_Battery_Test_Exceeded_Grace_Period_Allowed_by_Tech_Spec_Section_4.0.2._Caused_by_Personnel_Error.Test_Performe…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000395/LER-1987-026, :on 871103,weekly Fire Svc Diesel Battery Test Exceeded Grace Period Allowed by Tech Spec Section 4.0.2. Caused by Personnel Error.Test Performed & Event Discussed During Maint Weekly Safety Meeting

LER-1987-031, :on 870603,while in Mode 3,steam Generator 2 Exceeded hi-hi Water Level Setpoint Resulting in Trip of Both Main Feedwater (MFW) Pumps & MFW Isolation.Caused by Procedural Error.New Max Level Established
type: Subject
label: 05000424/LER-1987-031, :on 870603,while in Mode 3,steam Generator 2 Exceeded hi-hi Water Level Setpoint Resulting in Trip of Both Main Feedwater (MFW) Pumps & MFW Isolation.Caused by Procedural Error.New Max Level Established
page: https://kanterella.com/05000424/LER-2D1987-2D031-2C_-3Aon_870603-2Cwhile_in_Mode_3-2Csteam_Generator_2_Exceeded_hi-2Dhi_Water_Level_Setpoint_Resulting_in_Trip_of_Both_Main_Feedwater_-28MFW-29_Pumps_-2…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000424/LER-1987-031, :on 870603,while in Mode 3,steam Generator 2 Exceeded hi-hi Water Level Setpoint Resulting in Trip of Both Main Feedwater (MFW) Pumps & MFW Isolation.Caused by Procedural Error.New Max Level Established

LER-1986-034, :on 860921,during Performance of Secondary Plant Periodic Tests,Reactor Trip & Auxiliary Feedwater Actuation Occurred.Caused by Personnel error.Pre-amp for Source Range Neutron Flux Detector Replaced
type: Subject
label: 05000250/LER-1986-034, :on 860921,during Performance of Secondary Plant Periodic Tests,Reactor Trip & Auxiliary Feedwater Actuation Occurred.Caused by Personnel error.Pre-amp for Source Range Neutron Flux Detector Replaced
page: https://kanterella.com/05000250/LER-2D1986-2D034-2C_-3Aon_860921-2Cduring_Performance_of_Secondary_Plant_Periodic_Tests-2CReactor_Trip_-26_Auxiliary_Feedwater_Actuation_Occurred.Caused_by_Personnel_er…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1986-034, :on 860921,during Performance of Secondary Plant Periodic Tests,Reactor Trip & Auxiliary Feedwater Actuation Occurred.Caused by Personnel error.Pre-amp for Source Range Neutron Flux Detector Replaced

05000318/LER-1986-007, :on 860912,reactor Manually Tripped Due to Partial Loss of Feedwater Flow to Steam Generator 21.Caused by Jumpering Across Two Terminals.Probes Rewired
type: Subject
page: https://kanterella.com/05000318/LER-2D1986-2D007-2C_-3Aon_860912-2Creactor_Manually_Tripped_Due_to_Partial_Loss_of_Feedwater_Flow_to_Steam_Generator_21.Caused_by_Jumpering_Across_Two_Terminals.Probes_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000318/LER-1986-007, :on 860912,reactor Manually Tripped Due to Partial Loss of Feedwater Flow to Steam Generator 21.Caused by Jumpering Across Two Terminals.Probes Rewired

05000529/LER-1986-046-01, :on 860922,safety Injection Actuation Signal Automatically Actuated.Caused by Malfunctioning of Channel B Manual Actuation Handswitch.Faulty Handswitch Replaced
type: Subject
page: https://kanterella.com/05000529/LER-2D1986-2D046-2D01-2C_-3Aon_860922-2Csafety_Injection_Actuation_Signal_Automatically_Actuated.Caused_by_Malfunctioning_of_Channel_B_Manual_Actuation_Handswitch.Fault…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000529/LER-1986-046-01, :on 860922,safety Injection Actuation Signal Automatically Actuated.Caused by Malfunctioning of Channel B Manual Actuation Handswitch.Faulty Handswitch Replaced

LER-1986-028, :on 860915,inadvertent ESF Actuation of Isolation Valve Occurred During Testing.Probably Caused by Personnel Error Resulting from Test Lead Inadvertent Short Circuiting Across Relay Contacts
type: Subject
label: 05000341/LER-1986-028, :on 860915,inadvertent ESF Actuation of Isolation Valve Occurred During Testing.Probably Caused by Personnel Error Resulting from Test Lead Inadvertent Short Circuiting Across Relay Contacts
page: https://kanterella.com/05000341/LER-2D1986-2D028-2C_-3Aon_860915-2Cinadvertent_ESF_Actuation_of_Isolation_Valve_Occurred_During_Testing.Probably_Caused_by_Personnel_Error_Resulting_from_Test_Lead_Inad…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1986-028, :on 860915,inadvertent ESF Actuation of Isolation Valve Occurred During Testing.Probably Caused by Personnel Error Resulting from Test Lead Inadvertent Short Circuiting Across Relay Contacts

LER-1987-013, :on 870518,bus 4160V 1G Inadvertently Deenergized Due to Loss of Voltage During Transfer of Power from Startup to Normal Source.Cause Unknown.Investigation Conducted.No Furtherinvestigation Planned
type: Subject
label: 05000298/LER-1987-013, :on 870518,bus 4160V 1G Inadvertently Deenergized Due to Loss of Voltage During Transfer of Power from Startup to Normal Source.Cause Unknown.Investigation Conducted.No Furtherinvestigation Planned
page: https://kanterella.com/05000298/LER-2D1987-2D013-2C_-3Aon_870518-2Cbus_4160V_1G_Inadvertently_Deenergized_Due_to_Loss_of_Voltage_During_Transfer_of_Power_from_Startup_to_Normal_Source.Cause_Unknown.In…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1987-013, :on 870518,bus 4160V 1G Inadvertently Deenergized Due to Loss of Voltage During Transfer of Power from Startup to Normal Source.Cause Unknown.Investigation Conducted.No Furtherinvestigation Planned

unit in Hot Shutdown,Reactor Trip Breakers Opened When Individual Rod Position Indicators Determined Inoperable.Caused by Failed Transformer on Firing Card.Firing Card Replaced
type: Subject
label: 05000338/LER-1986-018-01, :on 860915,w/unit in Hot Shutdown,Reactor Trip Breakers Opened When Individual Rod Position Indicators Determined Inoperable.Caused by Failed Transformer on Firing Card.Firing Card Replaced
page: https://kanterella.com/05000338/LER-2D1986-2D018-2D01-2C_-3Aon_860915-2Cw/unit_in_Hot_Shutdown-2CReactor_Trip_Breakers_Opened_When_Individual_Rod_Position_Indicators_Determined_Inoperable.Caused_by_Fa…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000338/LER-1986-018-01, :on 860915,w/unit in Hot Shutdown,Reactor Trip Breakers Opened When Individual Rod Position Indicators Determined Inoperable.Caused by Failed Transformer on Firing Card.Firing Card Replaced

LER-1986-030, :on 861120 & 1204,reactor Protection Sys Buses Deenergized on Units 2 & 1,respectively.Caused by Tripping of Motor Generator Set Output Breakers.Breaker Removed, Tested,Reinstalled & Returned to Svc
type: Subject
label: 05000325/LER-1986-030, :on 861120 & 1204,reactor Protection Sys Buses Deenergized on Units 2 & 1,respectively.Caused by Tripping of Motor Generator Set Output Breakers.Breaker Removed, Tested,Reinstalled & Returned to Svc
page: https://kanterella.com/05000325/LER-2D1986-2D030-2C_-3Aon_861120_-26_1204-2Creactor_Protection_Sys_Buses_Deenergized_on_Units_2_-26_1-2Crespectively.Caused_by_Tripping_of_Motor_Generator_Set_Output_Br…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1986-030, :on 861120 & 1204,reactor Protection Sys Buses Deenergized on Units 2 & 1,respectively.Caused by Tripping of Motor Generator Set Output Breakers.Breaker Removed, Tested,Reinstalled & Returned to Svc

LER-1986-023-01, :on 860903,reactor Protection Sys Scram Occurred.Caused by Leaking Oil Filter Gasket Initiating Main Turbine trip.Electro-hydraulic Control Leak Repaired, Procedures Revised & Personnel Counseled
type: Subject
label: 05000366/LER-1986-023-01, :on 860903,reactor Protection Sys Scram Occurred.Caused by Leaking Oil Filter Gasket Initiating Main Turbine trip.Electro-hydraulic Control Leak Repaired, Procedures Revised & Personnel Counseled
page: https://kanterella.com/05000366/LER-2D1986-2D023-2D01-2C_-3Aon_860903-2Creactor_Protection_Sys_Scram_Occurred.Caused_by_Leaking_Oil_Filter_Gasket_Initiating_Main_Turbine_trip.Electro-2Dhydraulic_Contr…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000366/LER-1986-023-01, :on 860903,reactor Protection Sys Scram Occurred.Caused by Leaking Oil Filter Gasket Initiating Main Turbine trip.Electro-hydraulic Control Leak Repaired, Procedures Revised & Personnel Counseled

LER-1987-029, :on 870524,motor Driven Reactor Feed Pump Feedwater Regulating Valve 1FW004 Malfunctioned Causing High Water Level Transient.Caused by Failure of Regulating Valve. Mode Selector Switch Placed in Shutdown
type: Subject
label: 05000461/LER-1987-029, :on 870524,motor Driven Reactor Feed Pump Feedwater Regulating Valve 1FW004 Malfunctioned Causing High Water Level Transient.Caused by Failure of Regulating Valve. Mode Selector Switch Placed in Shutdown
page: https://kanterella.com/05000461/LER-2D1987-2D029-2C_-3Aon_870524-2Cmotor_Driven_Reactor_Feed_Pump_Feedwater_Regulating_Valve_1FW004_Malfunctioned_Causing_High_Water_Level_Transient.Caused_by_Failure_o…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-029, :on 870524,motor Driven Reactor Feed Pump Feedwater Regulating Valve 1FW004 Malfunctioned Causing High Water Level Transient.Caused by Failure of Regulating Valve. Mode Selector Switch Placed in Shutdown

LER-1987-011, :on 870517,while Conducting Monthly Turbine Valve Testing,Unplanned Actuation of Reactor Protection Sys & Containment Isolation Valve Groups 2,3 & 6 Initiated. Caused by Personnel Error.Procedure Revised
type: Subject
label: 05000298/LER-1987-011, :on 870517,while Conducting Monthly Turbine Valve Testing,Unplanned Actuation of Reactor Protection Sys & Containment Isolation Valve Groups 2,3 & 6 Initiated. Caused by Personnel Error.Procedure Revised
page: https://kanterella.com/05000298/LER-2D1987-2D011-2C_-3Aon_870517-2Cwhile_Conducting_Monthly_Turbine_Valve_Testing-2CUnplanned_Actuation_of_Reactor_Protection_Sys_-26_Containment_Isolation_Valve_Groups…
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wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1987-011, :on 870517,while Conducting Monthly Turbine Valve Testing,Unplanned Actuation of Reactor Protection Sys & Containment Isolation Valve Groups 2,3 & 6 Initiated. Caused by Personnel Error.Procedure Revised

Reactor Trip.Caused by Moisture in Underground Conduit Containing Control Wiring.New Conduit Installed
type: Subject
label: 05000286/LER-1986-010-01, :on 860905,motor-operated Disconnect Switch on Generator Transmission Line Opened,Causing Turbine/Reactor Trip.Caused by Moisture in Underground Conduit Containing Control Wiring.New Conduit Installed
page: https://kanterella.com/05000286/LER-2D1986-2D010-2D01-2C_-3Aon_860905-2Cmotor-2Doperated_Disconnect_Switch_on_Generator_Transmission_Line_Opened-2CCausing_Turbine/Reactor_Trip.Caused_by_Moisture_in_Un…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000286/LER-1986-010-01, :on 860905,motor-operated Disconnect Switch on Generator Transmission Line Opened,Causing Turbine/Reactor Trip.Caused by Moisture in Underground Conduit Containing Control Wiring.New Conduit Installed

O Reducing Suppression Pool,Violating Interlock Time Per Tech Spec.Operators Counseled.Design Change Planned
type: Subject
label: 05000440/LER-1987-029, :on 870501,during Containment Venting,Operators Overrode Interlock to Maintain RCIC Suction Transfer W/O Reducing Suppression Pool,Violating Interlock Time Per Tech Spec.Operators Counseled.Design Change Planned
page: https://kanterella.com/05000440/LER-2D1987-2D029-2C_-3Aon_870501-2Cduring_Containment_Venting-2COperators_Overrode_Interlock_to_Maintain_RCIC_Suction_Transfer_W/O_Reducing_Suppression_Pool-2CViolating…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1987-029, :on 870501,during Containment Venting,Operators Overrode Interlock to Maintain RCIC Suction Transfer W/O Reducing Suppression Pool,Violating Interlock Time Per Tech Spec.Operators Counseled.Design Change Planned

ML20214V473
type: Subject
page: https://kanterella.com/ML20214V473
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20214V473

LER-1986-032, :on 860823,during Demonstration of Operability of LPCI Components,Lpci Injection Valve a Did Not Indicate Fully Closed.Caused by Failure to Correctly Assemble Valve Coupling.Vendor Manual Updated
type: Subject
label: 05000321/LER-1986-032, :on 860823,during Demonstration of Operability of LPCI Components,Lpci Injection Valve a Did Not Indicate Fully Closed.Caused by Failure to Correctly Assemble Valve Coupling.Vendor Manual Updated
page: https://kanterella.com/05000321/LER-2D1986-2D032-2C_-3Aon_860823-2Cduring_Demonstration_of_Operability_of_LPCI_Components-2CLpci_Injection_Valve_a_Did_Not_Indicate_Fully_Closed.Caused_by_Failure_to_Co…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1986-032, :on 860823,during Demonstration of Operability of LPCI Components,Lpci Injection Valve a Did Not Indicate Fully Closed.Caused by Failure to Correctly Assemble Valve Coupling.Vendor Manual Updated

05000298/LER-1986-016, :on 860813,reactor Scram Occurred.Caused by Lack of Proper Preplanning for Relay Replacement & Specific Procedural Guidance.Need for Preplanning of Maint Activities Reemphasized
type: Subject
page: https://kanterella.com/05000298/LER-2D1986-2D016-2C_-3Aon_860813-2Creactor_Scram_Occurred.Caused_by_Lack_of_Proper_Preplanning_for_Relay_Replacement_-26_Specific_Procedural_Guidance.Need_for_Preplanni…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1986-016, :on 860813,reactor Scram Occurred.Caused by Lack of Proper Preplanning for Relay Replacement & Specific Procedural Guidance.Need for Preplanning of Maint Activities Reemphasized

LER-1986-040, :on 861027,determined That Two Weekly Surveillances of Breaker Alignment Not Performed in Required Tech Spec Time Interval.Caused by Nonlicensed Operator Oversight.Procedures Now Hand Carried
type: Subject
label: 05000416/LER-1986-040, :on 861027,determined That Two Weekly Surveillances of Breaker Alignment Not Performed in Required Tech Spec Time Interval.Caused by Nonlicensed Operator Oversight.Procedures Now Hand Carried
page: https://kanterella.com/05000416/LER-2D1986-2D040-2C_-3Aon_861027-2Cdetermined_That_Two_Weekly_Surveillances_of_Breaker_Alignment_Not_Performed_in_Required_Tech_Spec_Time_Interval.Caused_by_Nonlicensed…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000416/LER-1986-040, :on 861027,determined That Two Weekly Surveillances of Breaker Alignment Not Performed in Required Tech Spec Time Interval.Caused by Nonlicensed Operator Oversight.Procedures Now Hand Carried

LER-1987-024, :on 870501,RWCU Sys Automatically Isolated Two Times Due to High Differential Flow Signal.Caused by Flow Perturbations Compounded by Error in Circuitry & Personnel Error.Sys Stabilized & Returned to Svc
type: Subject
label: 05000461/LER-1987-024, :on 870501,RWCU Sys Automatically Isolated Two Times Due to High Differential Flow Signal.Caused by Flow Perturbations Compounded by Error in Circuitry & Personnel Error.Sys Stabilized & Returned to Svc
page: https://kanterella.com/05000461/LER-2D1987-2D024-2C_-3Aon_870501-2CRWCU_Sys_Automatically_Isolated_Two_Times_Due_to_High_Differential_Flow_Signal.Caused_by_Flow_Perturbations_Compounded_by_Error_in_Ci…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-024, :on 870501,RWCU Sys Automatically Isolated Two Times Due to High Differential Flow Signal.Caused by Flow Perturbations Compounded by Error in Circuitry & Personnel Error.Sys Stabilized & Returned to Svc

LER-1987-008-01, :on 870422,reactor Scram & Partial Primary Containment Isolation Sys Group 2 Isolation Occurred.Caused by Procedure Inadequacy.Reactor Water Level Restored & Scram Signal Reset.Procedures Revised
type: Subject
label: 05000321/LER-1987-008-01, :on 870422,reactor Scram & Partial Primary Containment Isolation Sys Group 2 Isolation Occurred.Caused by Procedure Inadequacy.Reactor Water Level Restored & Scram Signal Reset.Procedures Revised
page: https://kanterella.com/05000321/LER-2D1987-2D008-2D01-2C_-3Aon_870422-2Creactor_Scram_-26_Partial_Primary_Containment_Isolation_Sys_Group_2_Isolation_Occurred.Caused_by_Procedure_Inadequacy.Reactor_Wa…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1987-008-01, :on 870422,reactor Scram & Partial Primary Containment Isolation Sys Group 2 Isolation Occurred.Caused by Procedure Inadequacy.Reactor Water Level Restored & Scram Signal Reset.Procedures Revised

LER-1986-023-01, :on 861025,operators Noted Loss of Ready to Start Light & Simultaneous Annunciation of Emergency Diesel Generator B Trouble Alarm.Caused by Low Lube Oil Temp Causing Shorting of Above Wire to Ground
type: Subject
label: 05000251/LER-1986-023-01, :on 861025,operators Noted Loss of Ready to Start Light & Simultaneous Annunciation of Emergency Diesel Generator B Trouble Alarm.Caused by Low Lube Oil Temp Causing Shorting of Above Wire to Ground
page: https://kanterella.com/05000251/LER-2D1986-2D023-2D01-2C_-3Aon_861025-2Coperators_Noted_Loss_of_Ready_to_Start_Light_-26_Simultaneous_Annunciation_of_Emergency_Diesel_Generator_B_Trouble_Alarm.Caused_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000251/LER-1986-023-01, :on 861025,operators Noted Loss of Ready to Start Light & Simultaneous Annunciation of Emergency Diesel Generator B Trouble Alarm.Caused by Low Lube Oil Temp Causing Shorting of Above Wire to Ground

LER-1986-045-01, :on 861011,turbine-driven Auxiliary Feedwater Pump Found to Be Inoperable from Standby Shutdown Facility. Caused by Incorrectly Installed Solenoid Valve Due to Design Deficiency.Valve Retubed
type: Subject
label: 05000414/LER-1986-045-01, :on 861011,turbine-driven Auxiliary Feedwater Pump Found to Be Inoperable from Standby Shutdown Facility. Caused by Incorrectly Installed Solenoid Valve Due to Design Deficiency.Valve Retubed
page: https://kanterella.com/05000414/LER-2D1986-2D045-2D01-2C_-3Aon_861011-2Cturbine-2Ddriven_Auxiliary_Feedwater_Pump_Found_to_Be_Inoperable_from_Standby_Shutdown_Facility._Caused_by_Incorrectly_Installed…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1986-045-01, :on 861011,turbine-driven Auxiliary Feedwater Pump Found to Be Inoperable from Standby Shutdown Facility. Caused by Incorrectly Installed Solenoid Valve Due to Design Deficiency.Valve Retubed

LER-1986-020, :on 860716 & 0806,hourly Fire Watches Performed Late.Caused by Inadequate Supervision & Detention in Control Bldg Elevator.Disciplinary Action Taken & Fire Watch Schedule Will Be Changed
type: Subject
label: 05000325/LER-1986-020, :on 860716 & 0806,hourly Fire Watches Performed Late.Caused by Inadequate Supervision & Detention in Control Bldg Elevator.Disciplinary Action Taken & Fire Watch Schedule Will Be Changed
page: https://kanterella.com/05000325/LER-2D1986-2D020-2C_-3Aon_860716_-26_0806-2Chourly_Fire_Watches_Performed_Late.Caused_by_Inadequate_Supervision_-26_Detention_in_Control_Bldg_Elevator.Disciplinary_Acti…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1986-020, :on 860716 & 0806,hourly Fire Watches Performed Late.Caused by Inadequate Supervision & Detention in Control Bldg Elevator.Disciplinary Action Taken & Fire Watch Schedule Will Be Changed

Pneumatic Test H-64.Caused by Personnel Error.Personnel Counseled & Incident Reviewed
type: Subject
label: 05000321/LER-1986-003-01, :on 860128,high Drywell Pressure Signal Caused Several ESF Actuations to Occur During Hydrostatic/Pneumatic Test H-64.Caused by Personnel Error.Personnel Counseled & Incident Reviewed
page: https://kanterella.com/05000321/LER-2D1986-2D003-2D01-2C_-3Aon_860128-2Chigh_Drywell_Pressure_Signal_Caused_Several_ESF_Actuations_to_Occur_During_Hydrostatic/Pneumatic_Test_H-2D64.Caused_by_Personnel…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1986-003-01, :on 860128,high Drywell Pressure Signal Caused Several ESF Actuations to Occur During Hydrostatic/Pneumatic Test H-64.Caused by Personnel Error.Personnel Counseled & Incident Reviewed

LER-1986-004, :on 860801,electrician Opened Switch for Circuit 2 on Dc Panel 21 to Isolate Ground to Single Circuit,Causing Auxiliary Feedwater Pump to Start.Caused by Personnel Error.Personnel Counseled
type: Subject
label: 05000306/LER-1986-004, :on 860801,electrician Opened Switch for Circuit 2 on Dc Panel 21 to Isolate Ground to Single Circuit,Causing Auxiliary Feedwater Pump to Start.Caused by Personnel Error.Personnel Counseled
page: https://kanterella.com/05000306/LER-2D1986-2D004-2C_-3Aon_860801-2Celectrician_Opened_Switch_for_Circuit_2_on_Dc_Panel_21_to_Isolate_Ground_to_Single_Circuit-2CCausing_Auxiliary_Feedwater_Pump_to_Star…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000306/LER-1986-004, :on 860801,electrician Opened Switch for Circuit 2 on Dc Panel 21 to Isolate Ground to Single Circuit,Causing Auxiliary Feedwater Pump to Start.Caused by Personnel Error.Personnel Counseled

LER-1986-019-02, :on 861014,failure to Perform Nuclear Svc Water Valve Stroke Timing Quarterly Periodic Test within Required Interval Discovered.Caused by Mgt Deficiency Due to Inadequate Administrative Controls
type: Subject
label: 05000369/LER-1986-019-02, :on 861014,failure to Perform Nuclear Svc Water Valve Stroke Timing Quarterly Periodic Test within Required Interval Discovered.Caused by Mgt Deficiency Due to Inadequate Administrative Controls
page: https://kanterella.com/05000369/LER-2D1986-2D019-2D02-2C_-3Aon_861014-2Cfailure_to_Perform_Nuclear_Svc_Water_Valve_Stroke_Timing_Quarterly_Periodic_Test_within_Required_Interval_Discovered.Caused_by_M…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1986-019-02, :on 861014,failure to Perform Nuclear Svc Water Valve Stroke Timing Quarterly Periodic Test within Required Interval Discovered.Caused by Mgt Deficiency Due to Inadequate Administrative Controls

LER-1986-032, :on 861007,review of Plant Records Revealed That Control Rod Block intermediate-range Neutron Monitoring Quarterly Calibr Not Performed.Caused Insufficient Programmatic Controls.Items Now Tracked
type: Subject
label: 05000397/LER-1986-032, :on 861007,review of Plant Records Revealed That Control Rod Block intermediate-range Neutron Monitoring Quarterly Calibr Not Performed.Caused Insufficient Programmatic Controls.Items Now Tracked
page: https://kanterella.com/05000397/LER-2D1986-2D032-2C_-3Aon_861007-2Creview_of_Plant_Records_Revealed_That_Control_Rod_Block_intermediate-2Drange_Neutron_Monitoring_Quarterly_Calibr_Not_Performed.Caused…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000397/LER-1986-032, :on 861007,review of Plant Records Revealed That Control Rod Block intermediate-range Neutron Monitoring Quarterly Calibr Not Performed.Caused Insufficient Programmatic Controls.Items Now Tracked

LER-1986-014-02, :on 861010,results of Type C Containment Leakage Testing Indicated That Inside & Outside Containment Sump Trip Valves Had Leakage Greater than 300 Scfh.Caused by Erosion of Plug & Seat.Valves Will Be Replaced
type: Subject
label: 05000281/LER-1986-014-02, :on 861010,results of Type C Containment Leakage Testing Indicated That Inside & Outside Containment Sump Trip Valves Had Leakage Greater than 300 Scfh.Caused by Erosion of Plug & Seat.Valves Will Be Replaced
page: https://kanterella.com/05000281/LER-2D1986-2D014-2D02-2C_-3Aon_861010-2Cresults_of_Type_C_Containment_Leakage_Testing_Indicated_That_Inside_-26_Outside_Containment_Sump_Trip_Valves_Had_Leakage_Greater…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000281/LER-1986-014-02, :on 861010,results of Type C Containment Leakage Testing Indicated That Inside & Outside Containment Sump Trip Valves Had Leakage Greater than 300 Scfh.Caused by Erosion of Plug & Seat.Valves Will Be Replaced

LER-1986-062, :on 870211,discovered That Max Surveillance Interval for Monthly Functional Test of Plant Protection Sys (36ST-9SB02) Exceeded on 860222.Caused by Communication Error.Surveillance Program Enhanced
type: Subject
label: 05000528/LER-1986-062, :on 870211,discovered That Max Surveillance Interval for Monthly Functional Test of Plant Protection Sys (36ST-9SB02) Exceeded on 860222.Caused by Communication Error.Surveillance Program Enhanced
page: https://kanterella.com/05000528/LER-2D1986-2D062-2C_-3Aon_870211-2Cdiscovered_That_Max_Surveillance_Interval_for_Monthly_Functional_Test_of_Plant_Protection_Sys_-2836ST-2D9SB02-29_Exceeded_on_860222.C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000528/LER-1986-062, :on 870211,discovered That Max Surveillance Interval for Monthly Functional Test of Plant Protection Sys (36ST-9SB02) Exceeded on 860222.Caused by Communication Error.Surveillance Program Enhanced

LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error
type: Subject
label: 05000312/LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error
page: https://kanterella.com/05000312/LER-2D1987-2D016-2C_-3Aon_870206-2Cdiscovered_That_Cable_Pulls_Made_Into_safety-2Drelated_Breaker_Cubicle_Cabinets_for_Both_Trains_of_Emergency_Electrical_Power_Left_fo…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1987-016, :on 870206,discovered That Cable Pulls Made Into safety-related Breaker Cubicle Cabinets for Both Trains of Emergency Electrical Power Left for Several Wks Causing Invalid Seismic Analysis.Caused by Const Error

ML20215N827
type: Subject
page: https://kanterella.com/ML20215N827
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20215N827

LER-1986-022, :on 860710 & 11,two power-range Nuclear Instrumentation Ni Channels (N-41 & N-42) Inoperable Due to Personnel Failure to Properly Document & Control Drawing Error.Administrative Controls Strengthened
type: Subject
label: 05000316/LER-1986-022, :on 860710 & 11,two power-range Nuclear Instrumentation Ni Channels (N-41 & N-42) Inoperable Due to Personnel Failure to Properly Document & Control Drawing Error.Administrative Controls Strengthened
page: https://kanterella.com/05000316/LER-2D1986-2D022-2C_-3Aon_860710_-26_11-2Ctwo_power-2Drange_Nuclear_Instrumentation_Ni_Channels_-28N-2D41_-26_N-2D42-29_Inoperable_Due_to_Personnel_Failure_to_Properly_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000316/LER-1986-022, :on 860710 & 11,two power-range Nuclear Instrumentation Ni Channels (N-41 & N-42) Inoperable Due to Personnel Failure to Properly Document & Control Drawing Error.Administrative Controls Strengthened

LER-1986-036, :on 860708,while Metering Charging Pump Out of Svc,Charging Pump a Taken Out of Svc Due to Broken Shaft. Caused by Metal Fatigue.Plant Placed in Hot Shutdown. Procedures Re Pumps Revised
type: Subject
label: 05000213/LER-1986-036, :on 860708,while Metering Charging Pump Out of Svc,Charging Pump a Taken Out of Svc Due to Broken Shaft. Caused by Metal Fatigue.Plant Placed in Hot Shutdown. Procedures Re Pumps Revised
page: https://kanterella.com/05000213/LER-2D1986-2D036-2C_-3Aon_860708-2Cwhile_Metering_Charging_Pump_Out_of_Svc-2CCharging_Pump_a_Taken_Out_of_Svc_Due_to_Broken_Shaft._Caused_by_Metal_Fatigue.Plant_Placed_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-036, :on 860708,while Metering Charging Pump Out of Svc,Charging Pump a Taken Out of Svc Due to Broken Shaft. Caused by Metal Fatigue.Plant Placed in Hot Shutdown. Procedures Re Pumps Revised

ML20215H068
type: Subject
page: https://kanterella.com/ML20215H068
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20215H068

LER-1986-010-02, :on 860702,sensitive Ultrasonic Exam Revealed Crack Indications in Recirculation Sys Reactor Vessel Inlet Nozzle Safe Ends.Corrective Action Proposals Await Development of Acceptance Criteria
type: Subject
label: 05000260/LER-1986-010-02, :on 860702,sensitive Ultrasonic Exam Revealed Crack Indications in Recirculation Sys Reactor Vessel Inlet Nozzle Safe Ends.Corrective Action Proposals Await Development of Acceptance Criteria
page: https://kanterella.com/05000260/LER-2D1986-2D010-2D02-2C_-3Aon_860702-2Csensitive_Ultrasonic_Exam_Revealed_Crack_Indications_in_Recirculation_Sys_Reactor_Vessel_Inlet_Nozzle_Safe_Ends.Corrective_Actio…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000260/LER-1986-010-02, :on 860702,sensitive Ultrasonic Exam Revealed Crack Indications in Recirculation Sys Reactor Vessel Inlet Nozzle Safe Ends.Corrective Action Proposals Await Development of Acceptance Criteria

LER-1987-003-01, :on 870127,process Radiation Monitor (PRM) R-12 Spiked High.Caused by Inability of Drawers to Filter Out Electrical Transients.Prm R-11 & R-12 Reset.Cause of Transients Evaluated
type: Subject
label: 05000251/LER-1987-003-01, :on 870127,process Radiation Monitor (PRM) R-12 Spiked High.Caused by Inability of Drawers to Filter Out Electrical Transients.Prm R-11 & R-12 Reset.Cause of Transients Evaluated
page: https://kanterella.com/05000251/LER-2D1987-2D003-2D01-2C_-3Aon_870127-2Cprocess_Radiation_Monitor_-28PRM-29_R-2D12_Spiked_High.Caused_by_Inability_of_Drawers_to_Filter_Out_Electrical_Transients.Prm_R-…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000251/LER-1987-003-01, :on 870127,process Radiation Monitor (PRM) R-12 Spiked High.Caused by Inability of Drawers to Filter Out Electrical Transients.Prm R-11 & R-12 Reset.Cause of Transients Evaluated

05000312/LER-1986-013, :on 860630,0706,22 & 23,CR/TSC Essential HVAC Sys a & B Autostarted.Incidents Part of Recurring Problems W/Design,Control & Operation of Cr/Tsc Essential HVAC Sys.W/
type: Subject
page: https://kanterella.com/05000312/LER-2D1986-2D013-2C_-3Aon_860630-2C0706-2C22_-26_23-2CCR/TSC_Essential_HVAC_Sys_a_-26_B_Autostarted.Incidents_Part_of_Recurring_Problems_W/Design-2CControl_-26_Operatio…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1986-013, :on 860630,0706,22 & 23,CR/TSC Essential HVAC Sys a & B Autostarted.Incidents Part of Recurring Problems W/Design,Control & Operation of Cr/Tsc Essential HVAC Sys.W/

LER-1987-002-02, :on 870127,during Maint on Standby Gas Treatment (Sgbt) Train 1B,redundant Sgbt Train 1A Autostarted & Reactor Bldg Ventilation Sys Automatically Isolated.Caused by Inadequate Procedure
type: Subject
label: 05000325/LER-1987-002-02, :on 870127,during Maint on Standby Gas Treatment (Sgbt) Train 1B,redundant Sgbt Train 1A Autostarted & Reactor Bldg Ventilation Sys Automatically Isolated.Caused by Inadequate Procedure
page: https://kanterella.com/05000325/LER-2D1987-2D002-2D02-2C_-3Aon_870127-2Cduring_Maint_on_Standby_Gas_Treatment_-28Sgbt-29_Train_1B-2Credundant_Sgbt_Train_1A_Autostarted_-26_Reactor_Bldg_Ventilation_Sys…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1987-002-02, :on 870127,during Maint on Standby Gas Treatment (Sgbt) Train 1B,redundant Sgbt Train 1A Autostarted & Reactor Bldg Ventilation Sys Automatically Isolated.Caused by Inadequate Procedure

LER-1987-001, :on 870126,during Calibr Activities in RWCU Sys,Esf Isolation Actuation Received.Caused by Inadequate Communication Between Instrument Repairman & Shift Personnel.Personnel Counseled
type: Subject
label: 05000341/LER-1987-001, :on 870126,during Calibr Activities in RWCU Sys,Esf Isolation Actuation Received.Caused by Inadequate Communication Between Instrument Repairman & Shift Personnel.Personnel Counseled
page: https://kanterella.com/05000341/LER-2D1987-2D001-2C_-3Aon_870126-2Cduring_Calibr_Activities_in_RWCU_Sys-2CEsf_Isolation_Actuation_Received.Caused_by_Inadequate_Communication_Between_Instrument_Repairm…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1987-001, :on 870126,during Calibr Activities in RWCU Sys,Esf Isolation Actuation Received.Caused by Inadequate Communication Between Instrument Repairman & Shift Personnel.Personnel Counseled

LER-1986-015, :on 860530,reactor Scram Occurred,Initiating Reactor Bldg Emergency Ventilation.Caused by Lifted Neutral Leg of Output Protective Relaying Circuit.Lifted Lead Replaced & Reactor Scram Reset
type: Subject
label: 05000220/LER-1986-015, :on 860530,reactor Scram Occurred,Initiating Reactor Bldg Emergency Ventilation.Caused by Lifted Neutral Leg of Output Protective Relaying Circuit.Lifted Lead Replaced & Reactor Scram Reset
page: https://kanterella.com/05000220/LER-2D1986-2D015-2C_-3Aon_860530-2Creactor_Scram_Occurred-2CInitiating_Reactor_Bldg_Emergency_Ventilation.Caused_by_Lifted_Neutral_Leg_of_Output_Protective_Relaying_Cir…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000220/LER-1986-015, :on 860530,reactor Scram Occurred,Initiating Reactor Bldg Emergency Ventilation.Caused by Lifted Neutral Leg of Output Protective Relaying Circuit.Lifted Lead Replaced & Reactor Scram Reset

Tech Specs
type: Subject
label: 05000315/LER-1986-002, :on 860217,discovered That Three Reactor Trip Sys Interlock Setpoints Not Set Per Tech Spec Requirements. Caused by Misinterpretation of Tech Specs.Procedures Revised to Agree W/Tech Specs
page: https://kanterella.com/05000315/LER-2D1986-2D002-2C_-3Aon_860217-2Cdiscovered_That_Three_Reactor_Trip_Sys_Interlock_Setpoints_Not_Set_Per_Tech_Spec_Requirements._Caused_by_Misinterpretation_of_Tech_Sp…
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wiki page sort key: 05000315/LER-1986-002, :on 860217,discovered That Three Reactor Trip Sys Interlock Setpoints Not Set Per Tech Spec Requirements. Caused by Misinterpretation of Tech Specs.Procedures Revised to Agree W/Tech Specs

05000263/LER-1986-014, :on 860515,reactor Protection Sys Trip Occurred.Caused by Noise Spike on Intermediate power- Range Monitor 14 Tripping Channel a of Reactor Protection Sys.Channel a Trip Reset
type: Subject
page: https://kanterella.com/05000263/LER-2D1986-2D014-2C_-3Aon_860515-2Creactor_Protection_Sys_Trip_Occurred.Caused_by_Noise_Spike_on_Intermediate_power-2D_Range_Monitor_14_Tripping_Channel_a_of_Reactor_Pr…
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wiki page sort key: 05000263/LER-1986-014, :on 860515,reactor Protection Sys Trip Occurred.Caused by Noise Spike on Intermediate power- Range Monitor 14 Tripping Channel a of Reactor Protection Sys.Channel a Trip Reset

05000280/LER-1986-029, :on 860929,svc Water to Charging Pump Svc Water Subsystem Lost.Caused by Leak on Blowdown Line for in-line Strainer.Line Repaired
type: Subject
page: https://kanterella.com/05000280/LER-2D1986-2D029-2C_-3Aon_860929-2Csvc_Water_to_Charging_Pump_Svc_Water_Subsystem_Lost.Caused_by_Leak_on_Blowdown_Line_for_in-2Dline_Strainer.Line_Repaired
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wiki page sort key: 05000280/LER-1986-029, :on 860929,svc Water to Charging Pump Svc Water Subsystem Lost.Caused by Leak on Blowdown Line for in-line Strainer.Line Repaired

LER-1986-046, :on 860922,inadvertent Safety Injection Actuation Signal Automatically Actuated.Caused When One Channel of Manual Trip Path Test Actuated & Second Channel Handswitch Malfunctioned.Handswitch Replaced
type: Subject
label: 05000529/LER-1986-046, :on 860922,inadvertent Safety Injection Actuation Signal Automatically Actuated.Caused When One Channel of Manual Trip Path Test Actuated & Second Channel Handswitch Malfunctioned.Handswitch Replaced
page: https://kanterella.com/05000529/LER-2D1986-2D046-2C_-3Aon_860922-2Cinadvertent_Safety_Injection_Actuation_Signal_Automatically_Actuated.Caused_When_One_Channel_of_Manual_Trip_Path_Test_Actuated_-26_Se…
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wiki page sort key: 05000529/LER-1986-046, :on 860922,inadvertent Safety Injection Actuation Signal Automatically Actuated.Caused When One Channel of Manual Trip Path Test Actuated & Second Channel Handswitch Malfunctioned.Handswitch Replaced

LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated
type: Subject
label: 05000312/LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated
page: https://kanterella.com/05000312/LER-2D1987-2D005-2C_-3Aon_870113-2Ccondensate_Storage_Tank_Level_Instrument_Used_to_Determine_Auxiliary_Feedwater_Pump_Capacities_During_Periodic_Surveillance_Testing_N…
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wiki page sort key: 05000312/LER-1987-005, :on 870113,condensate Storage Tank Level Instrument Used to Determine Auxiliary Feedwater Pump Capacities During Periodic Surveillance Testing Not Adequately Calibr.Cause Not Stated

LER-1986-053, :on 860911,reactor Tripped on Low Steam Generator Pressure.Caused by Procedural Inadequacy Re Use of Circuit Card Extender Board During Maint.Notice Distributed & Procedures Revised
type: Subject
label: 05000528/LER-1986-053, :on 860911,reactor Tripped on Low Steam Generator Pressure.Caused by Procedural Inadequacy Re Use of Circuit Card Extender Board During Maint.Notice Distributed & Procedures Revised
page: https://kanterella.com/05000528/LER-2D1986-2D053-2C_-3Aon_860911-2Creactor_Tripped_on_Low_Steam_Generator_Pressure.Caused_by_Procedural_Inadequacy_Re_Use_of_Circuit_Card_Extender_Board_During_Maint.No…
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wiki page sort key: 05000528/LER-1986-053, :on 860911,reactor Tripped on Low Steam Generator Pressure.Caused by Procedural Inadequacy Re Use of Circuit Card Extender Board During Maint.Notice Distributed & Procedures Revised

05000263/LER-1986-011, :on 860509,EFT Sys (Control Room HVAC) Automatically Transferred to Toxic Chemical Mode Due to Hydrogen Chloride Monitor Tape Break.Caused by Small Imperfection on Tape
type: Subject
page: https://kanterella.com/05000263/LER-2D1986-2D011-2C_-3Aon_860509-2CEFT_Sys_-28Control_Room_HVAC-29_Automatically_Transferred_to_Toxic_Chemical_Mode_Due_to_Hydrogen_Chloride_Monitor_Tape_Break.Caused_b…
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wiki page sort key: 05000263/LER-1986-011, :on 860509,EFT Sys (Control Room HVAC) Automatically Transferred to Toxic Chemical Mode Due to Hydrogen Chloride Monitor Tape Break.Caused by Small Imperfection on Tape

LER-1986-029, :on 860918,reactor Scrammed on Low Recirculation Flow When Forced Circulation Pump 1B Tripped. Caused by Closed Seal Inject Supply Valve.Valve Controller Rebuilt & Procedure Change Implemented
type: Subject
label: 05000409/LER-1986-029, :on 860918,reactor Scrammed on Low Recirculation Flow When Forced Circulation Pump 1B Tripped. Caused by Closed Seal Inject Supply Valve.Valve Controller Rebuilt & Procedure Change Implemented
page: https://kanterella.com/05000409/LER-2D1986-2D029-2C_-3Aon_860918-2Creactor_Scrammed_on_Low_Recirculation_Flow_When_Forced_Circulation_Pump_1B_Tripped._Caused_by_Closed_Seal_Inject_Supply_Valve.Valve_C…
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wiki page sort key: 05000409/LER-1986-029, :on 860918,reactor Scrammed on Low Recirculation Flow When Forced Circulation Pump 1B Tripped. Caused by Closed Seal Inject Supply Valve.Valve Controller Rebuilt & Procedure Change Implemented

O Continuous Fire Watch.Caused by Personnel Error.Design & Annunciator Response Procedure Evaluated
type: Subject
label: 05000483/LER-1986-034, :on 860908,pre-action Sprinkler Sys Protecting Cable Trays of Auxiliary Bldg Inoperable W/O Continuous Fire Watch.Caused by Personnel Error.Design & Annunciator Response Procedure Evaluated
page: https://kanterella.com/05000483/LER-2D1986-2D034-2C_-3Aon_860908-2Cpre-2Daction_Sprinkler_Sys_Protecting_Cable_Trays_of_Auxiliary_Bldg_Inoperable_W/O_Continuous_Fire_Watch.Caused_by_Personnel_Error.De…
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wiki page sort key: 05000483/LER-1986-034, :on 860908,pre-action Sprinkler Sys Protecting Cable Trays of Auxiliary Bldg Inoperable W/O Continuous Fire Watch.Caused by Personnel Error.Design & Annunciator Response Procedure Evaluated

LER-1986-017-01, :on 860809,auxiliary Feedwater Flow Initiated Following Testing of Automatic Feedwater Sys.Caused by Personnel Error.Operator Counseled & Procedure AP-103.16 Re Technical Advisor Duties Revised
type: Subject
label: 05000251/LER-1986-017-01, :on 860809,auxiliary Feedwater Flow Initiated Following Testing of Automatic Feedwater Sys.Caused by Personnel Error.Operator Counseled & Procedure AP-103.16 Re Technical Advisor Duties Revised
page: https://kanterella.com/05000251/LER-2D1986-2D017-2D01-2C_-3Aon_860809-2Cauxiliary_Feedwater_Flow_Initiated_Following_Testing_of_Automatic_Feedwater_Sys.Caused_by_Personnel_Error.Operator_Counseled_-26…
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wiki page sort key: 05000251/LER-1986-017-01, :on 860809,auxiliary Feedwater Flow Initiated Following Testing of Automatic Feedwater Sys.Caused by Personnel Error.Operator Counseled & Procedure AP-103.16 Re Technical Advisor Duties Revised

LER-1987-004, :on 870112,discovered That One Train of Auxiliary Feedwater Out of Svc When Both Units Above Hot Shutdown.Caused by Erroneous Flow Indication of Indicator FI-1457A.Flow Transmitter Replaced
type: Subject
label: 05000250/LER-1987-004, :on 870112,discovered That One Train of Auxiliary Feedwater Out of Svc When Both Units Above Hot Shutdown.Caused by Erroneous Flow Indication of Indicator FI-1457A.Flow Transmitter Replaced
page: https://kanterella.com/05000250/LER-2D1987-2D004-2C_-3Aon_870112-2Cdiscovered_That_One_Train_of_Auxiliary_Feedwater_Out_of_Svc_When_Both_Units_Above_Hot_Shutdown.Caused_by_Erroneous_Flow_Indication_of…
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wiki page sort key: 05000250/LER-1987-004, :on 870112,discovered That One Train of Auxiliary Feedwater Out of Svc When Both Units Above Hot Shutdown.Caused by Erroneous Flow Indication of Indicator FI-1457A.Flow Transmitter Replaced

05000250/LER-1987-003, :on 870112,annunciator E 8/3 Generator Field Ground Alarmed.Caused by Turbine Plant Cooling Water Leak in Exciter Housing.Leaking Exciter Air Cooler Isolated & Drained
type: Subject
page: https://kanterella.com/05000250/LER-2D1987-2D003-2C_-3Aon_870112-2Cannunciator_E_8/3_Generator_Field_Ground_Alarmed.Caused_by_Turbine_Plant_Cooling_Water_Leak_in_Exciter_Housing.Leaking_Exciter_Air_Co…
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wiki page sort key: 05000250/LER-1987-003, :on 870112,annunciator E 8/3 Generator Field Ground Alarmed.Caused by Turbine Plant Cooling Water Leak in Exciter Housing.Leaking Exciter Air Cooler Isolated & Drained

LER-1987-001, :on 870114,RWCU Sys Isolated on Signal from F Temp Differential Switch.Caused by Steam Leak in Root Isolation Valve.Corrective Maint Action Request Generated to Repack Root Valve & Investigate Leak
type: Subject
label: 05000331/LER-1987-001, :on 870114,RWCU Sys Isolated on Signal from F Temp Differential Switch.Caused by Steam Leak in Root Isolation Valve.Corrective Maint Action Request Generated to Repack Root Valve & Investigate Leak
page: https://kanterella.com/05000331/LER-2D1987-2D001-2C_-3Aon_870114-2CRWCU_Sys_Isolated_on_Signal_from_F_Temp_Differential_Switch.Caused_by_Steam_Leak_in_Root_Isolation_Valve.Corrective_Maint_Action_Requ…
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wiki page sort key: 05000331/LER-1987-001, :on 870114,RWCU Sys Isolated on Signal from F Temp Differential Switch.Caused by Steam Leak in Root Isolation Valve.Corrective Maint Action Request Generated to Repack Root Valve & Investigate Leak

LER-1986-009-01, :on 860424,steam Generator Level Channel, Which Was Out of Calibr,Not Placed in Tripped Position within Specified Time Frame.Caused by Personnel Error. Shift Supervisor Counseled
type: Subject
label: 05000414/LER-1986-009-01, :on 860424,steam Generator Level Channel, Which Was Out of Calibr,Not Placed in Tripped Position within Specified Time Frame.Caused by Personnel Error. Shift Supervisor Counseled
page: https://kanterella.com/05000414/LER-2D1986-2D009-2D01-2C_-3Aon_860424-2Csteam_Generator_Level_Channel-2C_Which_Was_Out_of_Calibr-2CNot_Placed_in_Tripped_Position_within_Specified_Time_Frame.Caused_by_…
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wiki page sort key: 05000414/LER-1986-009-01, :on 860424,steam Generator Level Channel, Which Was Out of Calibr,Not Placed in Tripped Position within Specified Time Frame.Caused by Personnel Error. Shift Supervisor Counseled

LER-1986-039-01, :on 860903,control Room Essential Filtration Actuation Signal (CREFAS) Generated After CREFAS Module Removed from Bypass Before All Trip Inputs Cleared. Appropriate Disciplinary Action Taken
type: Subject
label: 05000529/LER-1986-039-01, :on 860903,control Room Essential Filtration Actuation Signal (CREFAS) Generated After CREFAS Module Removed from Bypass Before All Trip Inputs Cleared. Appropriate Disciplinary Action Taken
page: https://kanterella.com/05000529/LER-2D1986-2D039-2D01-2C_-3Aon_860903-2Ccontrol_Room_Essential_Filtration_Actuation_Signal_-28CREFAS-29_Generated_After_CREFAS_Module_Removed_from_Bypass_Before_All_Tri…
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wiki page sort key: 05000529/LER-1986-039-01, :on 860903,control Room Essential Filtration Actuation Signal (CREFAS) Generated After CREFAS Module Removed from Bypass Before All Trip Inputs Cleared. Appropriate Disciplinary Action Taken

ML20211M305
type: Subject
page: https://kanterella.com/ML20211M305
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wiki page sort key: ML20211M305

LER-1986-009, :on 860224,control Room Ventilation Isolation Signal Initiated Due to Loss of Sample Flow in Intake Radiation Monitors GK-RE-04 & GK-RE-05.Cause Unknown. Evaluation Continuing.Monitors Returned to Svc
type: Subject
label: 05000482/LER-1986-009, :on 860224,control Room Ventilation Isolation Signal Initiated Due to Loss of Sample Flow in Intake Radiation Monitors GK-RE-04 & GK-RE-05.Cause Unknown. Evaluation Continuing.Monitors Returned to Svc
page: https://kanterella.com/05000482/LER-2D1986-2D009-2C_-3Aon_860224-2Ccontrol_Room_Ventilation_Isolation_Signal_Initiated_Due_to_Loss_of_Sample_Flow_in_Intake_Radiation_Monitors_GK-2DRE-2D04_-26_GK-2DRE-…
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wiki page sort key: 05000482/LER-1986-009, :on 860224,control Room Ventilation Isolation Signal Initiated Due to Loss of Sample Flow in Intake Radiation Monitors GK-RE-04 & GK-RE-05.Cause Unknown. Evaluation Continuing.Monitors Returned to Svc

Normal Plant Operating Conditions. Assumptions Will Be Included in Procedures
type: Subject
label: 05000346/LER-1986-037, :on 860812,Teledyne Assumptions for Bechtel Analyses of Makeup & Purification Sys Inlet to Letdown Coolers Inconsistent W/Normal Plant Operating Conditions. Assumptions Will Be Included in Procedures
page: https://kanterella.com/05000346/LER-2D1986-2D037-2C_-3Aon_860812-2CTeledyne_Assumptions_for_Bechtel_Analyses_of_Makeup_-26_Purification_Sys_Inlet_to_Letdown_Coolers_Inconsistent_W/Normal_Plant_Operati…
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wiki page sort key: 05000346/LER-1986-037, :on 860812,Teledyne Assumptions for Bechtel Analyses of Makeup & Purification Sys Inlet to Letdown Coolers Inconsistent W/Normal Plant Operating Conditions. Assumptions Will Be Included in Procedures

LER-1986-016-02, :on 860812,main Supply Breaker to 125-volt Dc Vital Instrumentation & Control Power Distribution Ctr Accidentally Bumped Open,Causing Reactor Trip.Caused by Personnel Error.Protective Covers Installed
type: Subject
label: 05000370/LER-1986-016-02, :on 860812,main Supply Breaker to 125-volt Dc Vital Instrumentation & Control Power Distribution Ctr Accidentally Bumped Open,Causing Reactor Trip.Caused by Personnel Error.Protective Covers Installed
page: https://kanterella.com/05000370/LER-2D1986-2D016-2D02-2C_-3Aon_860812-2Cmain_Supply_Breaker_to_125-2Dvolt_Dc_Vital_Instrumentation_-26_Control_Power_Distribution_Ctr_Accidentally_Bumped_Open-2CCausing…
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wiki page sort key: 05000370/LER-1986-016-02, :on 860812,main Supply Breaker to 125-volt Dc Vital Instrumentation & Control Power Distribution Ctr Accidentally Bumped Open,Causing Reactor Trip.Caused by Personnel Error.Protective Covers Installed

O Informing Chemistry Technicians.Procedure Revised
type: Subject
label: 05000382/LER-1986-017, :on 860811,chemistry Technicians Failed to Sample Proper Gas Decay Tank.Caused by Operations Personnel Realigning Inservice Tanks W/O Informing Chemistry Technicians.Procedure Revised
page: https://kanterella.com/05000382/LER-2D1986-2D017-2C_-3Aon_860811-2Cchemistry_Technicians_Failed_to_Sample_Proper_Gas_Decay_Tank.Caused_by_Operations_Personnel_Realigning_Inservice_Tanks_W/O_Informing_…
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wiki page sort key: 05000382/LER-1986-017, :on 860811,chemistry Technicians Failed to Sample Proper Gas Decay Tank.Caused by Operations Personnel Realigning Inservice Tanks W/O Informing Chemistry Technicians.Procedure Revised

LER-1986-033, :on 860806,reactor Protection Sys Bus a Lost Because Motor Generator a Set Output Breaker Tripped.Caused by Failure of Motor Generator Set Overvoltage Relay 1C71-K751A.Relay Replaced
type: Subject
label: 05000321/LER-1986-033, :on 860806,reactor Protection Sys Bus a Lost Because Motor Generator a Set Output Breaker Tripped.Caused by Failure of Motor Generator Set Overvoltage Relay 1C71-K751A.Relay Replaced
page: https://kanterella.com/05000321/LER-2D1986-2D033-2C_-3Aon_860806-2Creactor_Protection_Sys_Bus_a_Lost_Because_Motor_Generator_a_Set_Output_Breaker_Tripped.Caused_by_Failure_of_Motor_Generator_Set_Overv…
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wiki page sort key: 05000321/LER-1986-033, :on 860806,reactor Protection Sys Bus a Lost Because Motor Generator a Set Output Breaker Tripped.Caused by Failure of Motor Generator Set Overvoltage Relay 1C71-K751A.Relay Replaced

LER-1986-030, :on 860802,main Turbine & Reactor Feedwater Pumps Tripped Due to Feedwater Flow Oscillations.Caused by Opening of Min Flow Bypass Valves Due to Setpoint Error. Procedure Revised & Instruments Calibr
type: Subject
label: 05000321/LER-1986-030, :on 860802,main Turbine & Reactor Feedwater Pumps Tripped Due to Feedwater Flow Oscillations.Caused by Opening of Min Flow Bypass Valves Due to Setpoint Error. Procedure Revised & Instruments Calibr
page: https://kanterella.com/05000321/LER-2D1986-2D030-2C_-3Aon_860802-2Cmain_Turbine_-26_Reactor_Feedwater_Pumps_Tripped_Due_to_Feedwater_Flow_Oscillations.Caused_by_Opening_of_Min_Flow_Bypass_Valves_Due_t…
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wiki page sort key: 05000321/LER-1986-030, :on 860802,main Turbine & Reactor Feedwater Pumps Tripped Due to Feedwater Flow Oscillations.Caused by Opening of Min Flow Bypass Valves Due to Setpoint Error. Procedure Revised & Instruments Calibr

Discharge Line Valving Verifications Not Performed Prior to Commencing Liquid Radwaste Batch Discharge Releases.Caused by Personnel Error
type: Subject
label: 05000440/LER-1986-046, :on 860813 & 14,independent Sample Analysis & Release Rate Calculation/Discharge Line Valving Verifications Not Performed Prior to Commencing Liquid Radwaste Batch Discharge Releases.Caused by Personnel Error
page: https://kanterella.com/05000440/LER-2D1986-2D046-2C_-3Aon_860813_-26_14-2Cindependent_Sample_Analysis_-26_Release_Rate_Calculation/Discharge_Line_Valving_Verifications_Not_Performed_Prior_to_Commencin…
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wiki page sort key: 05000440/LER-1986-046, :on 860813 & 14,independent Sample Analysis & Release Rate Calculation/Discharge Line Valving Verifications Not Performed Prior to Commencing Liquid Radwaste Batch Discharge Releases.Caused by Personnel Error

LER-1987-010, :on 870321 & 24,reactor Protection Sys Actuations Occurred.Caused by Initial Adjustments of Automatic Controllers for Steam Dump & Bypass Feedwater Regulating Valve Controllers.Controls Adjusted
type: Subject
label: 05000424/LER-1987-010, :on 870321 & 24,reactor Protection Sys Actuations Occurred.Caused by Initial Adjustments of Automatic Controllers for Steam Dump & Bypass Feedwater Regulating Valve Controllers.Controls Adjusted
page: https://kanterella.com/05000424/LER-2D1987-2D010-2C_-3Aon_870321_-26_24-2Creactor_Protection_Sys_Actuations_Occurred.Caused_by_Initial_Adjustments_of_Automatic_Controllers_for_Steam_Dump_-26_Bypass_Fe…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000424/LER-1987-010, :on 870321 & 24,reactor Protection Sys Actuations Occurred.Caused by Initial Adjustments of Automatic Controllers for Steam Dump & Bypass Feedwater Regulating Valve Controllers.Controls Adjusted

05000237/LER-1987-001-01, :on 870102 & 0121,ultrasonic Testing Revealed Through Wall Indications on Pipe Welds PD5-D20 & 8-12.Caused by Igscc.Engineering Evaluation on Indications Performed
type: Subject
page: https://kanterella.com/05000237/LER-2D1987-2D001-2D01-2C_-3Aon_870102_-26_0121-2Cultrasonic_Testing_Revealed_Through_Wall_Indications_on_Pipe_Welds_PD5-2DD20_-26_8-2D12.Caused_by_Igscc.Engineering_Eva…
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wiki page sort key: 05000237/LER-1987-001-01, :on 870102 & 0121,ultrasonic Testing Revealed Through Wall Indications on Pipe Welds PD5-D20 & 8-12.Caused by Igscc.Engineering Evaluation on Indications Performed

LER-1987-009, :on 870325,RHR Pump C Tripped Due to Inboard Isolation Valve Closing.Caused by Intermittent Failure of Master Trip Unit.Futher Investigation of Master Trip Unit Will Be Made by Mfg.Isolation Logic Reset
type: Subject
label: 05000341/LER-1987-009, :on 870325,RHR Pump C Tripped Due to Inboard Isolation Valve Closing.Caused by Intermittent Failure of Master Trip Unit.Futher Investigation of Master Trip Unit Will Be Made by Mfg.Isolation Logic Reset
page: https://kanterella.com/05000341/LER-2D1987-2D009-2C_-3Aon_870325-2CRHR_Pump_C_Tripped_Due_to_Inboard_Isolation_Valve_Closing.Caused_by_Intermittent_Failure_of_Master_Trip_Unit.Futher_Investigation_of_…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1987-009, :on 870325,RHR Pump C Tripped Due to Inboard Isolation Valve Closing.Caused by Intermittent Failure of Master Trip Unit.Futher Investigation of Master Trip Unit Will Be Made by Mfg.Isolation Logic Reset

O Degrading Performance.Design Change Issued
type: Subject
label: 05000341/LER-1986-017, :on 860624,discovered That Emergency Equipment Cooling Water Sys Capacity Inadequate to Remove Drywell Cooler Heat Loads During Small Break Inside Drywell W/O Degrading Performance.Design Change Issued
page: https://kanterella.com/05000341/LER-2D1986-2D017-2C_-3Aon_860624-2Cdiscovered_That_Emergency_Equipment_Cooling_Water_Sys_Capacity_Inadequate_to_Remove_Drywell_Cooler_Heat_Loads_During_Small_Break_Insi…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1986-017, :on 860624,discovered That Emergency Equipment Cooling Water Sys Capacity Inadequate to Remove Drywell Cooler Heat Loads During Small Break Inside Drywell W/O Degrading Performance.Design Change Issued

LER-1986-026, :on 860703,automatic Initiation of Reactor Bldg Standby Ventilation Sys a Side Occurred.Caused by Technician Dropping Screwdriver in Panel & Deenergizing Relay During Surveillance Test.Test Procedure Revised
type: Subject
label: 05000322/LER-1986-026, :on 860703,automatic Initiation of Reactor Bldg Standby Ventilation Sys a Side Occurred.Caused by Technician Dropping Screwdriver in Panel & Deenergizing Relay During Surveillance Test.Test Procedure Revised
page: https://kanterella.com/05000322/LER-2D1986-2D026-2C_-3Aon_860703-2Cautomatic_Initiation_of_Reactor_Bldg_Standby_Ventilation_Sys_a_Side_Occurred.Caused_by_Technician_Dropping_Screwdriver_in_Panel_-26_D…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000322/LER-1986-026, :on 860703,automatic Initiation of Reactor Bldg Standby Ventilation Sys a Side Occurred.Caused by Technician Dropping Screwdriver in Panel & Deenergizing Relay During Surveillance Test.Test Procedure Revised

Recirculation Flow Signal.Caused by Improper Setting of Linkage Control to Reactor Feedwater Pump 1B.Linkage Readjusted & New Procedure Written
type: Subject
label: 05000409/LER-1986-019, :on 860627,reactor Scrammed on High Power/ Recirculation Flow Signal.Caused by Improper Setting of Linkage Control to Reactor Feedwater Pump 1B.Linkage Readjusted & New Procedure Written
page: https://kanterella.com/05000409/LER-2D1986-2D019-2C_-3Aon_860627-2Creactor_Scrammed_on_High_Power/_Recirculation_Flow_Signal.Caused_by_Improper_Setting_of_Linkage_Control_to_Reactor_Feedwater_Pump_1B.…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000409/LER-1986-019, :on 860627,reactor Scrammed on High Power/ Recirculation Flow Signal.Caused by Improper Setting of Linkage Control to Reactor Feedwater Pump 1B.Linkage Readjusted & New Procedure Written

LER-1986-009-01, :on 861205,audit Determined That Refueling Water Storage Tank Outlet Valves MV-32098 & MV-32099 Not Tested Monthly.Caused by Misinterpretation of Tech Specs. Tech Specs Clarified
type: Subject
label: 05000282/LER-1986-009-01, :on 861205,audit Determined That Refueling Water Storage Tank Outlet Valves MV-32098 & MV-32099 Not Tested Monthly.Caused by Misinterpretation of Tech Specs. Tech Specs Clarified
page: https://kanterella.com/05000282/LER-2D1986-2D009-2D01-2C_-3Aon_861205-2Caudit_Determined_That_Refueling_Water_Storage_Tank_Outlet_Valves_MV-2D32098_-26_MV-2D32099_Not_Tested_Monthly.Caused_by_Misinter…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000282/LER-1986-009-01, :on 861205,audit Determined That Refueling Water Storage Tank Outlet Valves MV-32098 & MV-32099 Not Tested Monthly.Caused by Misinterpretation of Tech Specs. Tech Specs Clarified

LER-1986-009-04, :on 860623,ESF Train a Feedwater Isolation Signal Actuated During Reactor Trip Breaker Testing.Caused by Defective Procedure.Isolation Valves Reopened.Procedures Will Be Revised.Personnel Will Review Event
type: Subject
label: 05000370/LER-1986-009-04, :on 860623,ESF Train a Feedwater Isolation Signal Actuated During Reactor Trip Breaker Testing.Caused by Defective Procedure.Isolation Valves Reopened.Procedures Will Be Revised.Personnel Will Review Event
page: https://kanterella.com/05000370/LER-2D1986-2D009-2D04-2C_-3Aon_860623-2CESF_Train_a_Feedwater_Isolation_Signal_Actuated_During_Reactor_Trip_Breaker_Testing.Caused_by_Defective_Procedure.Isolation_Valv…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1986-009-04, :on 860623,ESF Train a Feedwater Isolation Signal Actuated During Reactor Trip Breaker Testing.Caused by Defective Procedure.Isolation Valves Reopened.Procedures Will Be Revised.Personnel Will Review Event

05000529/LER-1986-037-01, :on 860626,main Steam Line Isolation Signal Actuated Due to Steam Generator 1 Level Swell.Caused by Cognitive Operator Error.Operator Counseled
type: Subject
page: https://kanterella.com/05000529/LER-2D1986-2D037-2D01-2C_-3Aon_860626-2Cmain_Steam_Line_Isolation_Signal_Actuated_Due_to_Steam_Generator_1_Level_Swell.Caused_by_Cognitive_Operator_Error.Operator_Couns…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000529/LER-1986-037-01, :on 860626,main Steam Line Isolation Signal Actuated Due to Steam Generator 1 Level Swell.Caused by Cognitive Operator Error.Operator Counseled

LER-1986-026, :on 860622,while in Mode 1,reactor Trip Occurred When Power Increased Above 10-.Caused by Ceiling Tile Stuck in Relay,Causing RCS Low Flow Indication.Debris Removed & Scram Circuits Tested
type: Subject
label: 05000213/LER-1986-026, :on 860622,while in Mode 1,reactor Trip Occurred When Power Increased Above 10%.Caused by Ceiling Tile Stuck in Relay,Causing RCS Low Flow Indication.Debris Removed & Scram Circuits Tested
page: https://kanterella.com/05000213/LER-2D1986-2D026-2C_-3Aon_860622-2Cwhile_in_Mode_1-2Creactor_Trip_Occurred_When_Power_Increased_Above_10-.Caused_by_Ceiling_Tile_Stuck_in_Relay-2CCausing_RCS_Low_Flow_I…
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wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-026, :on 860622,while in Mode 1,reactor Trip Occurred When Power Increased Above 10%.Caused by Ceiling Tile Stuck in Relay,Causing RCS Low Flow Indication.Debris Removed & Scram Circuits Tested

LER-1986-008-03, :on 861206,digital Rod Position Indication Sys Not Operable During Power Ascension Test.Caused by Failure to Review Procedure Against Requirements of Tech Spec Special Test Exception 3.10.5
type: Subject
label: 05000400/LER-1986-008-03, :on 861206,digital Rod Position Indication Sys Not Operable During Power Ascension Test.Caused by Failure to Review Procedure Against Requirements of Tech Spec Special Test Exception 3.10.5
page: https://kanterella.com/05000400/LER-2D1986-2D008-2D03-2C_-3Aon_861206-2Cdigital_Rod_Position_Indication_Sys_Not_Operable_During_Power_Ascension_Test.Caused_by_Failure_to_Review_Procedure_Against_Requi…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000400/LER-1986-008-03, :on 861206,digital Rod Position Indication Sys Not Operable During Power Ascension Test.Caused by Failure to Review Procedure Against Requirements of Tech Spec Special Test Exception 3.10.5

LER-1986-008-08, :on 860618,Group II Primary Containment Isolation Received,Causing Isolation of Reactor Bldg Ventilation & Start of Standby Gas Treatment Sys.Caused by Personnel Error.Personnel Cautioned Re Maint
type: Subject
label: 05000249/LER-1986-008-08, :on 860618,Group II Primary Containment Isolation Received,Causing Isolation of Reactor Bldg Ventilation & Start of Standby Gas Treatment Sys.Caused by Personnel Error.Personnel Cautioned Re Maint
page: https://kanterella.com/05000249/LER-2D1986-2D008-2D08-2C_-3Aon_860618-2CGroup_II_Primary_Containment_Isolation_Received-2CCausing_Isolation_of_Reactor_Bldg_Ventilation_-26_Start_of_Standby_Gas_Treatme…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000249/LER-1986-008-08, :on 860618,Group II Primary Containment Isolation Received,Causing Isolation of Reactor Bldg Ventilation & Start of Standby Gas Treatment Sys.Caused by Personnel Error.Personnel Cautioned Re Maint

LER-1986-030, :on 860627,during Operation in Mode 1,dropped rod-load Runback Signal Generated Spuriously on Channel 34 of Nuclear Instrumentation Sys.No Rod Motion in Progress. Cause Not Yet Defined.Sys Will Be Replaced
type: Subject
label: 05000213/LER-1986-030, :on 860627,during Operation in Mode 1,dropped rod-load Runback Signal Generated Spuriously on Channel 34 of Nuclear Instrumentation Sys.No Rod Motion in Progress. Cause Not Yet Defined.Sys Will Be Replaced
page: https://kanterella.com/05000213/LER-2D1986-2D030-2C_-3Aon_860627-2Cduring_Operation_in_Mode_1-2Cdropped_rod-2Dload_Runback_Signal_Generated_Spuriously_on_Channel_34_of_Nuclear_Instrumentation_Sys.No_R…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-030, :on 860627,during Operation in Mode 1,dropped rod-load Runback Signal Generated Spuriously on Channel 34 of Nuclear Instrumentation Sys.No Rod Motion in Progress. Cause Not Yet Defined.Sys Will Be Replaced

LER-1986-007-02, :on 860617,reactor Trip Occurred Due to High Level in Steam Generator A.Caused by Failure of Valve FCV-2478 to Close Due to Metal Debris Between Plug & Valve Seat.Metal Debris Removed & Valve Reassembled
type: Subject
label: 05000281/LER-1986-007-02, :on 860617,reactor Trip Occurred Due to High Level in Steam Generator A.Caused by Failure of Valve FCV-2478 to Close Due to Metal Debris Between Plug & Valve Seat.Metal Debris Removed & Valve Reassembled
page: https://kanterella.com/05000281/LER-2D1986-2D007-2D02-2C_-3Aon_860617-2Creactor_Trip_Occurred_Due_to_High_Level_in_Steam_Generator_A.Caused_by_Failure_of_Valve_FCV-2D2478_to_Close_Due_to_Metal_Debris_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000281/LER-1986-007-02, :on 860617,reactor Trip Occurred Due to High Level in Steam Generator A.Caused by Failure of Valve FCV-2478 to Close Due to Metal Debris Between Plug & Valve Seat.Metal Debris Removed & Valve Reassembled

LER-1986-007-03, :on 860804,4,160-volt Bus 1A3 Deenergized Due to Inadvertent Actuation of Differential Current Protective Relay.Caused by Technician Failure to Ensure Breaker Cubicle Door Fully Open While Inserting Breaker
type: Subject
label: 05000335/LER-1986-007-03, :on 860804,4,160-volt Bus 1A3 Deenergized Due to Inadvertent Actuation of Differential Current Protective Relay.Caused by Technician Failure to Ensure Breaker Cubicle Door Fully Open While Inserting Breaker
page: https://kanterella.com/05000335/LER-2D1986-2D007-2D03-2C_-3Aon_860804-2C4-2C160-2Dvolt_Bus_1A3_Deenergized_Due_to_Inadvertent_Actuation_of_Differential_Current_Protective_Relay.Caused_by_Technician_Fa…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000335/LER-1986-007-03, :on 860804,4,160-volt Bus 1A3 Deenergized Due to Inadvertent Actuation of Differential Current Protective Relay.Caused by Technician Failure to Ensure Breaker Cubicle Door Fully Open While Inserting Breaker

LER-1986-024, :on 860803,turbine Trip & Subsequent Scram Occurred.Caused by Increase in Reactor Water Level.Hpci Mode of Feedwater Reset,Reactor Water Level Restored & Instrument & Control Personnel Notified to Remove Signal
type: Subject
label: 05000220/LER-1986-024, :on 860803,turbine Trip & Subsequent Scram Occurred.Caused by Increase in Reactor Water Level.Hpci Mode of Feedwater Reset,Reactor Water Level Restored & Instrument & Control Personnel Notified to Remove Signal
page: https://kanterella.com/05000220/LER-2D1986-2D024-2C_-3Aon_860803-2Cturbine_Trip_-26_Subsequent_Scram_Occurred.Caused_by_Increase_in_Reactor_Water_Level.Hpci_Mode_of_Feedwater_Reset-2CReactor_Water_Lev…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000220/LER-1986-024, :on 860803,turbine Trip & Subsequent Scram Occurred.Caused by Increase in Reactor Water Level.Hpci Mode of Feedwater Reset,Reactor Water Level Restored & Instrument & Control Personnel Notified to Remove Signal

05000423/LER-1987-012, :on 870320,Tech Spec Surveillance on Snubber Visual Insp Missed.Caused by Engineering Oversight & Outdated Snubber List.List Updated & All Snubbers Inspected
type: Subject
page: https://kanterella.com/05000423/LER-2D1987-2D012-2C_-3Aon_870320-2CTech_Spec_Surveillance_on_Snubber_Visual_Insp_Missed.Caused_by_Engineering_Oversight_-26_Outdated_Snubber_List.List_Updated_-26_All_S…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1987-012, :on 870320,Tech Spec Surveillance on Snubber Visual Insp Missed.Caused by Engineering Oversight & Outdated Snubber List.List Updated & All Snubbers Inspected

05000341/LER-1986-021, :on 860720,while in Cold Shutdown,Rwcu Inboard Isolation Valve Autoisolated Three Times.Caused by Blown Fuses & Broken Differential Temp Thermocouple Flange.Fuses Replaced
type: Subject
page: https://kanterella.com/05000341/LER-2D1986-2D021-2C_-3Aon_860720-2Cwhile_in_Cold_Shutdown-2CRwcu_Inboard_Isolation_Valve_Autoisolated_Three_Times.Caused_by_Blown_Fuses_-26_Broken_Differential_Temp_The…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1986-021, :on 860720,while in Cold Shutdown,Rwcu Inboard Isolation Valve Autoisolated Three Times.Caused by Blown Fuses & Broken Differential Temp Thermocouple Flange.Fuses Replaced

LER-1986-019-01, :on 860531,automatic Initiation of Standby Gas Treatment Sys Occurred as Result of Steam Tunnel Ventilation Radiation Monitor Trip.Caused by Radiation Monitor Out of Adjustment.Calibr Procedure Revised
type: Subject
label: 05000245/LER-1986-019-01, :on 860531,automatic Initiation of Standby Gas Treatment Sys Occurred as Result of Steam Tunnel Ventilation Radiation Monitor Trip.Caused by Radiation Monitor Out of Adjustment.Calibr Procedure Revised
page: https://kanterella.com/05000245/LER-2D1986-2D019-2D01-2C_-3Aon_860531-2Cautomatic_Initiation_of_Standby_Gas_Treatment_Sys_Occurred_as_Result_of_Steam_Tunnel_Ventilation_Radiation_Monitor_Trip.Caused_b…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000245/LER-1986-019-01, :on 860531,automatic Initiation of Standby Gas Treatment Sys Occurred as Result of Steam Tunnel Ventilation Radiation Monitor Trip.Caused by Radiation Monitor Out of Adjustment.Calibr Procedure Revised

LER-1986-011-05, :on 860520 Full Scram Occurred Twice Due to Low Reactor Water Level.Caused by Reactor Feedwater Regulating Valve B Booster Relay Failure & Personnel Error.Relay Replaced & Violation Rept Completed
type: Subject
label: 05000237/LER-1986-011-05, :on 860520 Full Scram Occurred Twice Due to Low Reactor Water Level.Caused by Reactor Feedwater Regulating Valve B Booster Relay Failure & Personnel Error.Relay Replaced & Violation Rept Completed
page: https://kanterella.com/05000237/LER-2D1986-2D011-2D05-2C_-3Aon_860520_Full_Scram_Occurred_Twice_Due_to_Low_Reactor_Water_Level.Caused_by_Reactor_Feedwater_Regulating_Valve_B_Booster_Relay_Failure_-26_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000237/LER-1986-011-05, :on 860520 Full Scram Occurred Twice Due to Low Reactor Water Level.Caused by Reactor Feedwater Regulating Valve B Booster Relay Failure & Personnel Error.Relay Replaced & Violation Rept Completed

LER-1987-011, :on 870310 & 11,shifting of Main Control Room Ventilation Sys to High Chlorine Mode Occurred.Caused by Exceeding Trip Setpoint.Mods to Raise Alarm Setpoint on Chlorine Detectors Planned
type: Subject
label: 05000461/LER-1987-011, :on 870310 & 11,shifting of Main Control Room Ventilation Sys to High Chlorine Mode Occurred.Caused by Exceeding Trip Setpoint.Mods to Raise Alarm Setpoint on Chlorine Detectors Planned
page: https://kanterella.com/05000461/LER-2D1987-2D011-2C_-3Aon_870310_-26_11-2Cshifting_of_Main_Control_Room_Ventilation_Sys_to_High_Chlorine_Mode_Occurred.Caused_by_Exceeding_Trip_Setpoint.Mods_to_Raise_A…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-011, :on 870310 & 11,shifting of Main Control Room Ventilation Sys to High Chlorine Mode Occurred.Caused by Exceeding Trip Setpoint.Mods to Raise Alarm Setpoint on Chlorine Detectors Planned

LER-1987-010, :on 870308,main Control Room Ventilation Sys Train a Shifted to High Chlorine Mode on Signal from Chlorine Detector OXE-VC018B.Caused by Discolored Chlorine Sensitive Tape.Maint Work Request Written
type: Subject
label: 05000461/LER-1987-010, :on 870308,main Control Room Ventilation Sys Train a Shifted to High Chlorine Mode on Signal from Chlorine Detector OXE-VC018B.Caused by Discolored Chlorine Sensitive Tape.Maint Work Request Written
page: https://kanterella.com/05000461/LER-2D1987-2D010-2C_-3Aon_870308-2Cmain_Control_Room_Ventilation_Sys_Train_a_Shifted_to_High_Chlorine_Mode_on_Signal_from_Chlorine_Detector_OXE-2DVC018B.Caused_by_Disco…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000461/LER-1987-010, :on 870308,main Control Room Ventilation Sys Train a Shifted to High Chlorine Mode on Signal from Chlorine Detector OXE-VC018B.Caused by Discolored Chlorine Sensitive Tape.Maint Work Request Written

LER-1986-023, :on 860518,nuclear Instrumentation power-range Channel 34 Spuriously Generated Dropped rod-load Runback Signal.Caused by Load Limiter Mechanically Binding.Load Limiter Clutch Adjusted
type: Subject
label: 05000213/LER-1986-023, :on 860518,nuclear Instrumentation power-range Channel 34 Spuriously Generated Dropped rod-load Runback Signal.Caused by Load Limiter Mechanically Binding.Load Limiter Clutch Adjusted
page: https://kanterella.com/05000213/LER-2D1986-2D023-2C_-3Aon_860518-2Cnuclear_Instrumentation_power-2Drange_Channel_34_Spuriously_Generated_Dropped_rod-2Dload_Runback_Signal.Caused_by_Load_Limiter_Mechan…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-023, :on 860518,nuclear Instrumentation power-range Channel 34 Spuriously Generated Dropped rod-load Runback Signal.Caused by Load Limiter Mechanically Binding.Load Limiter Clutch Adjusted

LER-1986-014, :on 860511,temporary Degradation of Dc Bus Voltage B Experienced,Resulting in ESF Actuation.Caused by Inadequate Procedure in Design Change to Replace Batteries. Procedure Will Be Revised
type: Subject
label: 05000280/LER-1986-014, :on 860511,temporary Degradation of Dc Bus Voltage B Experienced,Resulting in ESF Actuation.Caused by Inadequate Procedure in Design Change to Replace Batteries. Procedure Will Be Revised
page: https://kanterella.com/05000280/LER-2D1986-2D014-2C_-3Aon_860511-2Ctemporary_Degradation_of_Dc_Bus_Voltage_B_Experienced-2CResulting_in_ESF_Actuation.Caused_by_Inadequate_Procedure_in_Design_Change_to…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000280/LER-1986-014, :on 860511,temporary Degradation of Dc Bus Voltage B Experienced,Resulting in ESF Actuation.Caused by Inadequate Procedure in Design Change to Replace Batteries. Procedure Will Be Revised

ML20205T627
type: Subject
page: https://kanterella.com/ML20205T627
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20205T627

LER-1986-019, :on 860505,auxiliary Bldg Ventilation Isolation Occurred While Mod to 400-volt Shutdown Board 1A1-A Performed.Caused by Personnel Error Causing Loss of Power to Radiation Monitor & Subsequent Spike
type: Subject
label: 05000327/LER-1986-019, :on 860505,auxiliary Bldg Ventilation Isolation Occurred While Mod to 400-volt Shutdown Board 1A1-A Performed.Caused by Personnel Error Causing Loss of Power to Radiation Monitor & Subsequent Spike
page: https://kanterella.com/05000327/LER-2D1986-2D019-2C_-3Aon_860505-2Cauxiliary_Bldg_Ventilation_Isolation_Occurred_While_Mod_to_400-2Dvolt_Shutdown_Board_1A1-2DA_Performed.Caused_by_Personnel_Error_Caus…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1986-019, :on 860505,auxiliary Bldg Ventilation Isolation Occurred While Mod to 400-volt Shutdown Board 1A1-A Performed.Caused by Personnel Error Causing Loss of Power to Radiation Monitor & Subsequent Spike

LER-1988-023, :on 881006,MSIV Closed During Performance of Partial Stroke Surveillance Test,Resulting in Reactor Trip Due to Low Level in Steam Generator.Caused by Procedural Inadequacy.Surveillance Procedure Changed
type: Subject
label: 05000423/LER-1988-023, :on 881006,MSIV Closed During Performance of Partial Stroke Surveillance Test,Resulting in Reactor Trip Due to Low Level in Steam Generator.Caused by Procedural Inadequacy.Surveillance Procedure Changed
page: https://kanterella.com/05000423/LER-2D1988-2D023-2C_-3Aon_881006-2CMSIV_Closed_During_Performance_of_Partial_Stroke_Surveillance_Test-2CResulting_in_Reactor_Trip_Due_to_Low_Level_in_Steam_Generator.Ca…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1988-023, :on 881006,MSIV Closed During Performance of Partial Stroke Surveillance Test,Resulting in Reactor Trip Due to Low Level in Steam Generator.Caused by Procedural Inadequacy.Surveillance Procedure Changed

LER-1987-008, :on 870227,loss of Main Feedwater & Automatic Start of Both motor-driven Auxiliary Feedwater Pumps Occurred.Caused by Transient in Turbine Load.Motor Replaced & Tested & Valve Returned to Svc
type: Subject
label: 05000400/LER-1987-008, :on 870227,loss of Main Feedwater & Automatic Start of Both motor-driven Auxiliary Feedwater Pumps Occurred.Caused by Transient in Turbine Load.Motor Replaced & Tested & Valve Returned to Svc
page: https://kanterella.com/05000400/LER-2D1987-2D008-2C_-3Aon_870227-2Closs_of_Main_Feedwater_-26_Automatic_Start_of_Both_motor-2Ddriven_Auxiliary_Feedwater_Pumps_Occurred.Caused_by_Transient_in_Turbine_L…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000400/LER-1987-008, :on 870227,loss of Main Feedwater & Automatic Start of Both motor-driven Auxiliary Feedwater Pumps Occurred.Caused by Transient in Turbine Load.Motor Replaced & Tested & Valve Returned to Svc

LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr
type: Subject
label: 05000423/LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr
page: https://kanterella.com/05000423/LER-2D1986-2D023-2C_-3Aon_860311-2Cinappropriate_Calibr_Method_Used_-26_on_860312-2Cmonitors_Calibr_Nonconservatively.Caused_by_Defective_Procedure.Calibr_Methods_for_R…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1986-023, :on 860311,inappropriate Calibr Method Used & on 860312,monitors Calibr Nonconservatively.Caused by Defective Procedure.Calibr Methods for Radiation Monitors Reviewed & Four Monitors Recalibr

05000483/LER-1985-054, :on 851226,reactor Trip Occurred.Caused by Spurious Trip Generated by Loop 1 Over Temp Delta Temp Instrumentation.Circuit Card Generating Signal Replaced
type: Subject
page: https://kanterella.com/05000483/LER-2D1985-2D054-2C_-3Aon_851226-2Creactor_Trip_Occurred.Caused_by_Spurious_Trip_Generated_by_Loop_1_Over_Temp_Delta_Temp_Instrumentation.Circuit_Card_Generating_Signal…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-054, :on 851226,reactor Trip Occurred.Caused by Spurious Trip Generated by Loop 1 Over Temp Delta Temp Instrumentation.Circuit Card Generating Signal Replaced

LER-1987-002-09, :on 870225,while Unit Operating at 87- Power, HPCI Sys Discovered Inoperable.Caused by Oil Pressure Regulation Valve Failure.Similar Event Occurred on 870313. Limits of PS4 Reset to 60 Psig Increasing
type: Subject
label: 05000249/LER-1987-002-09, :on 870225,while Unit Operating at 87% Power, HPCI Sys Discovered Inoperable.Caused by Oil Pressure Regulation Valve Failure.Similar Event Occurred on 870313. Limits of PS4 Reset to 60 Psig Increasing
page: https://kanterella.com/05000249/LER-2D1987-2D002-2D09-2C_-3Aon_870225-2Cwhile_Unit_Operating_at_87-_Power-2C_HPCI_Sys_Discovered_Inoperable.Caused_by_Oil_Pressure_Regulation_Valve_Failure.Similar_Even…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000249/LER-1987-002-09, :on 870225,while Unit Operating at 87% Power, HPCI Sys Discovered Inoperable.Caused by Oil Pressure Regulation Valve Failure.Similar Event Occurred on 870313. Limits of PS4 Reset to 60 Psig Increasing

LER-1987-006, :on 870218 & 19,control Room Ventilation Sys Isolated & Control Room Emergency Fresh Air Supply Sys Train B Initiated.Caused by Chlorine Analyzer D Falsely Indicating Chlorine Present.Ventilation Isolation Reset
type: Subject
label: 05000352/LER-1987-006, :on 870218 & 19,control Room Ventilation Sys Isolated & Control Room Emergency Fresh Air Supply Sys Train B Initiated.Caused by Chlorine Analyzer D Falsely Indicating Chlorine Present.Ventilation Isolation Reset
page: https://kanterella.com/05000352/LER-2D1987-2D006-2C_-3Aon_870218_-26_19-2Ccontrol_Room_Ventilation_Sys_Isolated_-26_Control_Room_Emergency_Fresh_Air_Supply_Sys_Train_B_Initiated.Caused_by_Chlorine_Ana…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1987-006, :on 870218 & 19,control Room Ventilation Sys Isolated & Control Room Emergency Fresh Air Supply Sys Train B Initiated.Caused by Chlorine Analyzer D Falsely Indicating Chlorine Present.Ventilation Isolation Reset

05000413/LER-1985-020, :on 850314,reactor Trip Occurred Due to Power Range High Flux Rate Signal.Caused by Loose Detector Cable Inside Power Range Cabinets.Work Request Initiated to Repair Loose Cable
type: Subject
page: https://kanterella.com/05000413/LER-2D1985-2D020-2C_-3Aon_850314-2Creactor_Trip_Occurred_Due_to_Power_Range_High_Flux_Rate_Signal.Caused_by_Loose_Detector_Cable_Inside_Power_Range_Cabinets.Work_Reques…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1985-020, :on 850314,reactor Trip Occurred Due to Power Range High Flux Rate Signal.Caused by Loose Detector Cable Inside Power Range Cabinets.Work Request Initiated to Repair Loose Cable

Asme Section XI Accuracy & Range Requirements for Instruments Used for Pump Testing.Caused by Personnel Error.Instruments Calibr to Required Accuracy
type: Subject
label: 05000327/LER-1986-028, :on 860702,discovered Failure to Comply W/Asme Section XI Accuracy & Range Requirements for Instruments Used for Pump Testing.Caused by Personnel Error.Instruments Calibr to Required Accuracy
page: https://kanterella.com/05000327/LER-2D1986-2D028-2C_-3Aon_860702-2Cdiscovered_Failure_to_Comply_W/Asme_Section_XI_Accuracy_-26_Range_Requirements_for_Instruments_Used_for_Pump_Testing.Caused_by_Person…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1986-028, :on 860702,discovered Failure to Comply W/Asme Section XI Accuracy & Range Requirements for Instruments Used for Pump Testing.Caused by Personnel Error.Instruments Calibr to Required Accuracy

LER-1986-007-02, :on 860727,grab Sample Not Taken & Analyzed within Tech Spec Limit of 24 H.Caused by Declaring Epicor II Ventilation Sys Monitor Inoperable on 860724.Another Grab Sample Obtained
type: Subject
label: 05000320/LER-1986-007-02, :on 860727,grab Sample Not Taken & Analyzed within Tech Spec Limit of 24 H.Caused by Declaring Epicor II Ventilation Sys Monitor Inoperable on 860724.Another Grab Sample Obtained
page: https://kanterella.com/05000320/LER-2D1986-2D007-2D02-2C_-3Aon_860727-2Cgrab_Sample_Not_Taken_-26_Analyzed_within_Tech_Spec_Limit_of_24_H.Caused_by_Declaring_Epicor_II_Ventilation_Sys_Monitor_Inoperab…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000320/LER-1986-007-02, :on 860727,grab Sample Not Taken & Analyzed within Tech Spec Limit of 24 H.Caused by Declaring Epicor II Ventilation Sys Monitor Inoperable on 860724.Another Grab Sample Obtained

LER-1986-008, :on 860403,control Room Emergency Ventilation Sys Train a Discovered Inoperable Since 860318.Caused by Procedural Deficiencies & Personnel Error.Procedures Revised & Personnel Reminded of Tech Spec Requirements
type: Subject
label: 05000483/LER-1986-008, :on 860403,control Room Emergency Ventilation Sys Train a Discovered Inoperable Since 860318.Caused by Procedural Deficiencies & Personnel Error.Procedures Revised & Personnel Reminded of Tech Spec Requirements
page: https://kanterella.com/05000483/LER-2D1986-2D008-2C_-3Aon_860403-2Ccontrol_Room_Emergency_Ventilation_Sys_Train_a_Discovered_Inoperable_Since_860318.Caused_by_Procedural_Deficiencies_-26_Personnel_Err…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1986-008, :on 860403,control Room Emergency Ventilation Sys Train a Discovered Inoperable Since 860318.Caused by Procedural Deficiencies & Personnel Error.Procedures Revised & Personnel Reminded of Tech Spec Requirements

LER-1986-011-01, :on 860627,continuous Fire Watch Not Maintained for Inoperable Fire Door,Contrary to Tech Specs.Caused by Personnel Error.Hourly Fire Watch Posted & Info Directive AP-25 Will Be Issued
type: Subject
label: 05000272/LER-1986-011-01, :on 860627,continuous Fire Watch Not Maintained for Inoperable Fire Door,Contrary to Tech Specs.Caused by Personnel Error.Hourly Fire Watch Posted & Info Directive AP-25 Will Be Issued
page: https://kanterella.com/05000272/LER-2D1986-2D011-2D01-2C_-3Aon_860627-2Ccontinuous_Fire_Watch_Not_Maintained_for_Inoperable_Fire_Door-2CContrary_to_Tech_Specs.Caused_by_Personnel_Error.Hourly_Fire_Wat…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000272/LER-1986-011-01, :on 860627,continuous Fire Watch Not Maintained for Inoperable Fire Door,Contrary to Tech Specs.Caused by Personnel Error.Hourly Fire Watch Posted & Info Directive AP-25 Will Be Issued

LER-1986-030, :on 860627,reactor Trip & Subsequent Safety Injection Actuation Occurred,Due to Personnel Performing Sections of Operating Procedure 14004.1.Caused by Personnel Error.Affected Procedure Revised
type: Subject
label: 05000250/LER-1986-030, :on 860627,reactor Trip & Subsequent Safety Injection Actuation Occurred,Due to Personnel Performing Sections of Operating Procedure 14004.1.Caused by Personnel Error.Affected Procedure Revised
page: https://kanterella.com/05000250/LER-2D1986-2D030-2C_-3Aon_860627-2Creactor_Trip_-26_Subsequent_Safety_Injection_Actuation_Occurred-2CDue_to_Personnel_Performing_Sections_of_Operating_Procedure_14004.1…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1986-030, :on 860627,reactor Trip & Subsequent Safety Injection Actuation Occurred,Due to Personnel Performing Sections of Operating Procedure 14004.1.Caused by Personnel Error.Affected Procedure Revised

LER-1986-003, :on 860311,during Surveillance Test of Div II Isolation Logic,Rwcu Sys Isolated.Caused by Repairman Incorrectly Lifting Thermocouple Lead in Div I Isolation Logic.Personnel Counseled
type: Subject
label: 05000341/LER-1986-003, :on 860311,during Surveillance Test of Div II Isolation Logic,Rwcu Sys Isolated.Caused by Repairman Incorrectly Lifting Thermocouple Lead in Div I Isolation Logic.Personnel Counseled
page: https://kanterella.com/05000341/LER-2D1986-2D003-2C_-3Aon_860311-2Cduring_Surveillance_Test_of_Div_II_Isolation_Logic-2CRwcu_Sys_Isolated.Caused_by_Repairman_Incorrectly_Lifting_Thermocouple_Lead_in_D…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1986-003, :on 860311,during Surveillance Test of Div II Isolation Logic,Rwcu Sys Isolated.Caused by Repairman Incorrectly Lifting Thermocouple Lead in Div I Isolation Logic.Personnel Counseled

05000213/LER-1986-028, :on 860610,switchgear Room Halon Sys Declared Inoperable.Caused by Failure to Perform Adequate Retest of Sys Mod & Document Basis for Test Waiver.Continuous Fire Watch Posted
type: Subject
page: https://kanterella.com/05000213/LER-2D1986-2D028-2C_-3Aon_860610-2Cswitchgear_Room_Halon_Sys_Declared_Inoperable.Caused_by_Failure_to_Perform_Adequate_Retest_of_Sys_Mod_-26_Document_Basis_for_Test_Wai…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-028, :on 860610,switchgear Room Halon Sys Declared Inoperable.Caused by Failure to Perform Adequate Retest of Sys Mod & Document Basis for Test Waiver.Continuous Fire Watch Posted

05000344/LER-1986-006, :on 860605-06 & 10,sodium Hydroxide Additive Flowrate Inadequate.Caused by Repeatability Problem in Establishing Ref Position of Kerotest Globe Valves.Valve Internals Replaced
type: Subject
page: https://kanterella.com/05000344/LER-2D1986-2D006-2C_-3Aon_860605-2D06_-26_10-2Csodium_Hydroxide_Additive_Flowrate_Inadequate.Caused_by_Repeatability_Problem_in_Establishing_Ref_Position_of_Kerotest_Gl…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000344/LER-1986-006, :on 860605-06 & 10,sodium Hydroxide Additive Flowrate Inadequate.Caused by Repeatability Problem in Establishing Ref Position of Kerotest Globe Valves.Valve Internals Replaced

LER-1986-024, :on 860609,at 100- Power,Dropped Rod Turbine Load Runback Initiated.Caused by Spurious Signal in Power Range 34.Load Runback Reset Manually & Power Range Channels Will Be Replaced
type: Subject
label: 05000213/LER-1986-024, :on 860609,at 100% Power,Dropped Rod Turbine Load Runback Initiated.Caused by Spurious Signal in Power Range 34.Load Runback Reset Manually & Power Range Channels Will Be Replaced
page: https://kanterella.com/05000213/LER-2D1986-2D024-2C_-3Aon_860609-2Cat_100-_Power-2CDropped_Rod_Turbine_Load_Runback_Initiated.Caused_by_Spurious_Signal_in_Power_Range_34.Load_Runback_Reset_Manually_-2…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-024, :on 860609,at 100% Power,Dropped Rod Turbine Load Runback Initiated.Caused by Spurious Signal in Power Range 34.Load Runback Reset Manually & Power Range Channels Will Be Replaced

Approved Procedures.Caution Also Added to Applicable Procedure
type: Subject
label: 05000528/LER-1986-041, :on 860614 & 0531,channel Check on Radiation Monitor Missed.Radiation Protection Technicians Counseled on Verbatim Compliance W/Approved Procedures.Caution Also Added to Applicable Procedure
page: https://kanterella.com/05000528/LER-2D1986-2D041-2C_-3Aon_860614_-26_0531-2Cchannel_Check_on_Radiation_Monitor_Missed.Radiation_Protection_Technicians_Counseled_on_Verbatim_Compliance_W/Approved_Proce…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000528/LER-1986-041, :on 860614 & 0531,channel Check on Radiation Monitor Missed.Radiation Protection Technicians Counseled on Verbatim Compliance W/Approved Procedures.Caution Also Added to Applicable Procedure

LER-1986-005, :on 860205 & 0521,reactor Scrammed on APRM Hi Hi Flux.Caused by Malfunction of Mechanical Pressure Regulator Sys.Mechanical Regulation Sys Adjusted to Optimize Performance.Complete Overall of Sys Planned
type: Subject
label: 05000245/LER-1986-005, :on 860205 & 0521,reactor Scrammed on APRM Hi Hi Flux.Caused by Malfunction of Mechanical Pressure Regulator Sys.Mechanical Regulation Sys Adjusted to Optimize Performance.Complete Overall of Sys Planned
page: https://kanterella.com/05000245/LER-2D1986-2D005-2C_-3Aon_860205_-26_0521-2Creactor_Scrammed_on_APRM_Hi_Hi_Flux.Caused_by_Malfunction_of_Mechanical_Pressure_Regulator_Sys.Mechanical_Regulation_Sys_Adj…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000245/LER-1986-005, :on 860205 & 0521,reactor Scrammed on APRM Hi Hi Flux.Caused by Malfunction of Mechanical Pressure Regulator Sys.Mechanical Regulation Sys Adjusted to Optimize Performance.Complete Overall of Sys Planned

LER-1986-003-05, :on 860530,spurious Spikes on Radiation Monitors Caused Two Containment Ventilation Isolations. Caused by Loose Alarm Circuit Wire & Electromagnetic Interference.Wire Tightened
type: Subject
label: 05000328/LER-1986-003-05, :on 860530,spurious Spikes on Radiation Monitors Caused Two Containment Ventilation Isolations. Caused by Loose Alarm Circuit Wire & Electromagnetic Interference.Wire Tightened
page: https://kanterella.com/05000328/LER-2D1986-2D003-2D05-2C_-3Aon_860530-2Cspurious_Spikes_on_Radiation_Monitors_Caused_Two_Containment_Ventilation_Isolations._Caused_by_Loose_Alarm_Circuit_Wire_-26_Elec…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1986-003-05, :on 860530,spurious Spikes on Radiation Monitors Caused Two Containment Ventilation Isolations. Caused by Loose Alarm Circuit Wire & Electromagnetic Interference.Wire Tightened

LER-1986-022-02, :on 860612,RHR Shutdown Cooling Isolation Occurred During Performance of LES-PC-107.Caused by Operator Error.Operator Counseled on Unacceptability of Actions & Need for Attention to Details
type: Subject
label: 05000373/LER-1986-022-02, :on 860612,RHR Shutdown Cooling Isolation Occurred During Performance of LES-PC-107.Caused by Operator Error.Operator Counseled on Unacceptability of Actions & Need for Attention to Details
page: https://kanterella.com/05000373/LER-2D1986-2D022-2D02-2C_-3Aon_860612-2CRHR_Shutdown_Cooling_Isolation_Occurred_During_Performance_of_LES-2DPC-2D107.Caused_by_Operator_Error.Operator_Counseled_on_Unac…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000373/LER-1986-022-02, :on 860612,RHR Shutdown Cooling Isolation Occurred During Performance of LES-PC-107.Caused by Operator Error.Operator Counseled on Unacceptability of Actions & Need for Attention to Details

LER-1986-019, :on 860506,tube in Steam Generator 2 Not Plugged.Caused by Typo in Procedure & Inadequate Review Process.Procedure Sur 5.7-82 Will Be Revised to Include Signed Double Verification
type: Subject
label: 05000213/LER-1986-019, :on 860506,tube in Steam Generator 2 Not Plugged.Caused by Typo in Procedure & Inadequate Review Process.Procedure Sur 5.7-82 Will Be Revised to Include Signed Double Verification
page: https://kanterella.com/05000213/LER-2D1986-2D019-2C_-3Aon_860506-2Ctube_in_Steam_Generator_2_Not_Plugged.Caused_by_Typo_in_Procedure_-26_Inadequate_Review_Process.Procedure_Sur_5.7-2D82_Will_Be_Revise…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-019, :on 860506,tube in Steam Generator 2 Not Plugged.Caused by Typo in Procedure & Inadequate Review Process.Procedure Sur 5.7-82 Will Be Revised to Include Signed Double Verification

LER-1986-015-01, :on 860424 & 29,during Installation of Permanent Switch Protective Covers on Reactor Protection Sys (RPS) MG Panel Switches,Rps Trip Occurred.Caused by Accidental Bump of Control Switch
type: Subject
label: 05000259/LER-1986-015-01, :on 860424 & 29,during Installation of Permanent Switch Protective Covers on Reactor Protection Sys (RPS) MG Panel Switches,Rps Trip Occurred.Caused by Accidental Bump of Control Switch
page: https://kanterella.com/05000259/LER-2D1986-2D015-2D01-2C_-3Aon_860424_-26_29-2Cduring_Installation_of_Permanent_Switch_Protective_Covers_on_Reactor_Protection_Sys_-28RPS-29_MG_Panel_Switches-2CRps_Tri…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1986-015-01, :on 860424 & 29,during Installation of Permanent Switch Protective Covers on Reactor Protection Sys (RPS) MG Panel Switches,Rps Trip Occurred.Caused by Accidental Bump of Control Switch

Low Average Reactor Coolant Temp (Tave).Operating Procedures Revised to Ensure Tave within Programmed Band
type: Subject
label: 05000311/LER-1986-003-02, :on 860502,safety Injection Occurred,Resulting in Reactor Trip.Caused by High Steam Flow Coincident W/Low Average Reactor Coolant Temp (Tave).Operating Procedures Revised to Ensure Tave within Programmed Band
page: https://kanterella.com/05000311/LER-2D1986-2D003-2D02-2C_-3Aon_860502-2Csafety_Injection_Occurred-2CResulting_in_Reactor_Trip.Caused_by_High_Steam_Flow_Coincident_W/Low_Average_Reactor_Coolant_Temp_-2…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000311/LER-1986-003-02, :on 860502,safety Injection Occurred,Resulting in Reactor Trip.Caused by High Steam Flow Coincident W/Low Average Reactor Coolant Temp (Tave).Operating Procedures Revised to Ensure Tave within Programmed Band

LER-1986-015, :on 860506,while Reactor Shut Down,Spike Occurred on Nuclear Instrumentation Channel 6,generating Scram Signal.Caused by Burned Out Filament in Tube in Positive High Voltage Power Supply
type: Subject
label: 05000409/LER-1986-015, :on 860506,while Reactor Shut Down,Spike Occurred on Nuclear Instrumentation Channel 6,generating Scram Signal.Caused by Burned Out Filament in Tube in Positive High Voltage Power Supply
page: https://kanterella.com/05000409/LER-2D1986-2D015-2C_-3Aon_860506-2Cwhile_Reactor_Shut_Down-2CSpike_Occurred_on_Nuclear_Instrumentation_Channel_6-2Cgenerating_Scram_Signal.Caused_by_Burned_Out_Filament…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000409/LER-1986-015, :on 860506,while Reactor Shut Down,Spike Occurred on Nuclear Instrumentation Channel 6,generating Scram Signal.Caused by Burned Out Filament in Tube in Positive High Voltage Power Supply

LER-1986-010-01, :on 860426,steam Generator 2A Channel 3 Level Indicator Pegged High Causing Steam Generator hi-hi Level Alarm Actuation.Caused by Vent Valve on Ref Leg of Level Transmitter leaking-by.Indicator Repaired
type: Subject
label: 05000414/LER-1986-010-01, :on 860426,steam Generator 2A Channel 3 Level Indicator Pegged High Causing Steam Generator hi-hi Level Alarm Actuation.Caused by Vent Valve on Ref Leg of Level Transmitter leaking-by.Indicator Repaired
page: https://kanterella.com/05000414/LER-2D1986-2D010-2D01-2C_-3Aon_860426-2Csteam_Generator_2A_Channel_3_Level_Indicator_Pegged_High_Causing_Steam_Generator_hi-2Dhi_Level_Alarm_Actuation.Caused_by_Vent_Va…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1986-010-01, :on 860426,steam Generator 2A Channel 3 Level Indicator Pegged High Causing Steam Generator hi-hi Level Alarm Actuation.Caused by Vent Valve on Ref Leg of Level Transmitter leaking-by.Indicator Repaired

Standby Gas Treatment Sys Autostarting as Required.Caused by Operator Removing Wrong Fuse.Station Tailgate Session Conducted
type: Subject
label: 05000237/LER-1985-037-03, :on 851007,reactor Bldg Ventilation Tripped & Isolated W/Standby Gas Treatment Sys Autostarting as Required.Caused by Operator Removing Wrong Fuse.Station Tailgate Session Conducted
page: https://kanterella.com/05000237/LER-2D1985-2D037-2D03-2C_-3Aon_851007-2Creactor_Bldg_Ventilation_Tripped_-26_Isolated_W/Standby_Gas_Treatment_Sys_Autostarting_as_Required.Caused_by_Operator_Removing_W…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000237/LER-1985-037-03, :on 851007,reactor Bldg Ventilation Tripped & Isolated W/Standby Gas Treatment Sys Autostarting as Required.Caused by Operator Removing Wrong Fuse.Station Tailgate Session Conducted

LER-1986-020, :on 860425,RWCU Sys Inboard & Outboard Primary Containment Isolation Valves 2G31-F001 & 2G31-F004 Isolated on High Leakage Flow Signal.Caused by Disconnected Jumper During Functional Test.Isolation Reset
type: Subject
label: 05000321/LER-1986-020, :on 860425,RWCU Sys Inboard & Outboard Primary Containment Isolation Valves 2G31-F001 & 2G31-F004 Isolated on High Leakage Flow Signal.Caused by Disconnected Jumper During Functional Test.Isolation Reset
page: https://kanterella.com/05000321/LER-2D1986-2D020-2C_-3Aon_860425-2CRWCU_Sys_Inboard_-26_Outboard_Primary_Containment_Isolation_Valves_2G31-2DF001_-26_2G31-2DF004_Isolated_on_High_Leakage_Flow_Signal.C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1986-020, :on 860425,RWCU Sys Inboard & Outboard Primary Containment Isolation Valves 2G31-F001 & 2G31-F004 Isolated on High Leakage Flow Signal.Caused by Disconnected Jumper During Functional Test.Isolation Reset

LER-1986-028, :on 860925,individual Rod Position Indicators for All Control Rods Moved Down Approx 25 Steps.Caused by Failed Normal Negative Power Supply.Two Negative Power Supplies Replaced & Calibr
type: Subject
label: 05000280/LER-1986-028, :on 860925,individual Rod Position Indicators for All Control Rods Moved Down Approx 25 Steps.Caused by Failed Normal Negative Power Supply.Two Negative Power Supplies Replaced & Calibr
page: https://kanterella.com/05000280/LER-2D1986-2D028-2C_-3Aon_860925-2Cindividual_Rod_Position_Indicators_for_All_Control_Rods_Moved_Down_Approx_25_Steps.Caused_by_Failed_Normal_Negative_Power_Supply.Two_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000280/LER-1986-028, :on 860925,individual Rod Position Indicators for All Control Rods Moved Down Approx 25 Steps.Caused by Failed Normal Negative Power Supply.Two Negative Power Supplies Replaced & Calibr

LER-1988-020, :on 880605,reactor Scram Occurred Due to High APRM Neutron Flux Levels.Caused by Personnel Error.Automatic Mode of Flux Control Disabled Until Adjustments Completed & Personnel Involved Disciplined
type: Subject
label: 05000440/LER-1988-020, :on 880605,reactor Scram Occurred Due to High APRM Neutron Flux Levels.Caused by Personnel Error.Automatic Mode of Flux Control Disabled Until Adjustments Completed & Personnel Involved Disciplined
page: https://kanterella.com/05000440/LER-2D1988-2D020-2C_-3Aon_880605-2Creactor_Scram_Occurred_Due_to_High_APRM_Neutron_Flux_Levels.Caused_by_Personnel_Error.Automatic_Mode_of_Flux_Control_Disabled_Until_A…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1988-020, :on 880605,reactor Scram Occurred Due to High APRM Neutron Flux Levels.Caused by Personnel Error.Automatic Mode of Flux Control Disabled Until Adjustments Completed & Personnel Involved Disciplined

LER-1988-011, :on 880327,containment Integrity Lost Because Swagelok Cap on PC-743 Test Tee Removed for Leak Rate Testing Not Reinstalled Until Discovered on 880419.Caused by Inadequate Procedure.Procedure Upgraded
type: Subject
label: 05000285/LER-1988-011, :on 880327,containment Integrity Lost Because Swagelok Cap on PC-743 Test Tee Removed for Leak Rate Testing Not Reinstalled Until Discovered on 880419.Caused by Inadequate Procedure.Procedure Upgraded
page: https://kanterella.com/05000285/LER-2D1988-2D011-2C_-3Aon_880327-2Ccontainment_Integrity_Lost_Because_Swagelok_Cap_on_PC-2D743_Test_Tee_Removed_for_Leak_Rate_Testing_Not_Reinstalled_Until_Discovered_o…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000285/LER-1988-011, :on 880327,containment Integrity Lost Because Swagelok Cap on PC-743 Test Tee Removed for Leak Rate Testing Not Reinstalled Until Discovered on 880419.Caused by Inadequate Procedure.Procedure Upgraded

LER-1988-005, :on 880113,turbine Trip,Reactor Trip & Main Feedwater Isolation Occurred.Caused by hi-hi Level in Steam Generator Which Resulted from Generator Level Oscillations. Main & Auxiliary Feedwater Secured & Restored
type: Subject
label: 05000338/LER-1988-005, :on 880113,turbine Trip,Reactor Trip & Main Feedwater Isolation Occurred.Caused by hi-hi Level in Steam Generator Which Resulted from Generator Level Oscillations. Main & Auxiliary Feedwater Secured & Restored
page: https://kanterella.com/05000338/LER-2D1988-2D005-2C_-3Aon_880113-2Cturbine_Trip-2CReactor_Trip_-26_Main_Feedwater_Isolation_Occurred.Caused_by_hi-2Dhi_Level_in_Steam_Generator_Which_Resulted_from_Gene…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000338/LER-1988-005, :on 880113,turbine Trip,Reactor Trip & Main Feedwater Isolation Occurred.Caused by hi-hi Level in Steam Generator Which Resulted from Generator Level Oscillations. Main & Auxiliary Feedwater Secured & Restored

LER-1988-016, :on 880525,fire Door 408 Inoperable for More than 7 Days.Caused by Damage on Door Secured in Open Position to Facilitate Access While Doing Work in Area.Door Repaired & Returned to Functional Status
type: Subject
label: 05000348/LER-1988-016, :on 880525,fire Door 408 Inoperable for More than 7 Days.Caused by Damage on Door Secured in Open Position to Facilitate Access While Doing Work in Area.Door Repaired & Returned to Functional Status
page: https://kanterella.com/05000348/LER-2D1988-2D016-2C_-3Aon_880525-2Cfire_Door_408_Inoperable_for_More_than_7_Days.Caused_by_Damage_on_Door_Secured_in_Open_Position_to_Facilitate_Access_While_Doing_Work…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000348/LER-1988-016, :on 880525,fire Door 408 Inoperable for More than 7 Days.Caused by Damage on Door Secured in Open Position to Facilitate Access While Doing Work in Area.Door Repaired & Returned to Functional Status

LER-1988-009-02, :on 880520,reactor Scram Occurred When Three MSIVs Less than 90- Opened.Caused by Procedure Deficiency. Nitrogen to MSIVs Restored,Plant Procedures Temporarily Revised & Permanent Revs Scheduled
type: Subject
label: 05000321/LER-1988-009-02, :on 880520,reactor Scram Occurred When Three MSIVs Less than 90% Opened.Caused by Procedure Deficiency. Nitrogen to MSIVs Restored,Plant Procedures Temporarily Revised & Permanent Revs Scheduled
page: https://kanterella.com/05000321/LER-2D1988-2D009-2D02-2C_-3Aon_880520-2Creactor_Scram_Occurred_When_Three_MSIVs_Less_than_90-_Opened.Caused_by_Procedure_Deficiency._Nitrogen_to_MSIVs_Restored-2CPlant_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1988-009-02, :on 880520,reactor Scram Occurred When Three MSIVs Less than 90% Opened.Caused by Procedure Deficiency. Nitrogen to MSIVs Restored,Plant Procedures Temporarily Revised & Permanent Revs Scheduled

Outboard Supply Isolation Valves Discovered in Open Position.Valves Opened Before Start of Core Alterations on 860321 by Shift Operators.Personnel Counseled
type: Subject
label: 05000440/LER-1986-008, :on 860430,containment Fire Hose Reel Inboard/ Outboard Supply Isolation Valves Discovered in Open Position.Valves Opened Before Start of Core Alterations on 860321 by Shift Operators.Personnel Counseled
page: https://kanterella.com/05000440/LER-2D1986-2D008-2C_-3Aon_860430-2Ccontainment_Fire_Hose_Reel_Inboard/_Outboard_Supply_Isolation_Valves_Discovered_in_Open_Position.Valves_Opened_Before_Start_of_Core_A…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1986-008, :on 860430,containment Fire Hose Reel Inboard/ Outboard Supply Isolation Valves Discovered in Open Position.Valves Opened Before Start of Core Alterations on 860321 by Shift Operators.Personnel Counseled

LER-1986-006-01, :on 860318,roving Fire Watch Person Unable to Enter Two Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Loose Screw in Pull Handle.Door Repaired & Returned to Svc
type: Subject
label: 05000327/LER-1986-006-01, :on 860318,roving Fire Watch Person Unable to Enter Two Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Loose Screw in Pull Handle.Door Repaired & Returned to Svc
page: https://kanterella.com/05000327/LER-2D1986-2D006-2D01-2C_-3Aon_860318-2Croving_Fire_Watch_Person_Unable_to_Enter_Two_Rooms_to_Check_for_Fires_Due_to_Inoperable_Fire_Doors.Caused_by_Loose_Screw_in_Pull…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1986-006-01, :on 860318,roving Fire Watch Person Unable to Enter Two Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Loose Screw in Pull Handle.Door Repaired & Returned to Svc

Staff
type: Subject
label: 05000483/LER-1986-015, :on 860423,auxiliary Feedwater Actuation Sys & Steam Generator Blowdown Isolation Occurred.Caused by Radwaste Technician Unintentionally Opening Dc Fused Disconnect Switch.Incident Reviewed W/Staff
page: https://kanterella.com/05000483/LER-2D1986-2D015-2C_-3Aon_860423-2Cauxiliary_Feedwater_Actuation_Sys_-26_Steam_Generator_Blowdown_Isolation_Occurred.Caused_by_Radwaste_Technician_Unintentionally_Openi…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1986-015, :on 860423,auxiliary Feedwater Actuation Sys & Steam Generator Blowdown Isolation Occurred.Caused by Radwaste Technician Unintentionally Opening Dc Fused Disconnect Switch.Incident Reviewed W/Staff

LER-1988-020, :on 880508,incorrect HPCI Surveillance Test Procedure Performed Causing Reactor Scram.Procedure Intended to Be Performed in Cold Shutdown or Refueling Condition. Procedure 24.202.04 Revised
type: Subject
label: 05000341/LER-1988-020, :on 880508,incorrect HPCI Surveillance Test Procedure Performed Causing Reactor Scram.Procedure Intended to Be Performed in Cold Shutdown or Refueling Condition. Procedure 24.202.04 Revised
page: https://kanterella.com/05000341/LER-2D1988-2D020-2C_-3Aon_880508-2Cincorrect_HPCI_Surveillance_Test_Procedure_Performed_Causing_Reactor_Scram.Procedure_Intended_to_Be_Performed_in_Cold_Shutdown_or_Ref…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1988-020, :on 880508,incorrect HPCI Surveillance Test Procedure Performed Causing Reactor Scram.Procedure Intended to Be Performed in Cold Shutdown or Refueling Condition. Procedure 24.202.04 Revised

ML20199E090
type: Subject
page: https://kanterella.com/ML20199E090
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20199E090

LER-1988-017-01, :on 880424,main Feedwater Isolation Occurred Due to hi-hi Level Turbine Trip Signal from Steam Generator. Caused by Personnel Error.Steam Generator Levels Brought Under Control Using Auxiliary Feedwater
type: Subject
label: 05000414/LER-1988-017-01, :on 880424,main Feedwater Isolation Occurred Due to hi-hi Level Turbine Trip Signal from Steam Generator. Caused by Personnel Error.Steam Generator Levels Brought Under Control Using Auxiliary Feedwater
page: https://kanterella.com/05000414/LER-2D1988-2D017-2D01-2C_-3Aon_880424-2Cmain_Feedwater_Isolation_Occurred_Due_to_hi-2Dhi_Level_Turbine_Trip_Signal_from_Steam_Generator._Caused_by_Personnel_Error.Steam…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1988-017-01, :on 880424,main Feedwater Isolation Occurred Due to hi-hi Level Turbine Trip Signal from Steam Generator. Caused by Personnel Error.Steam Generator Levels Brought Under Control Using Auxiliary Feedwater

LER-1988-012, :on 880425,automatic Start of Loop a Reactor Bldg Closed Cooling Water Sys Pump a Occurred.Caused by Accelerated Wear Induced Failure of Coupling in Pump B. Failed Coupling Replaced & Addl Measures Taken
type: Subject
label: 05000293/LER-1988-012, :on 880425,automatic Start of Loop a Reactor Bldg Closed Cooling Water Sys Pump a Occurred.Caused by Accelerated Wear Induced Failure of Coupling in Pump B. Failed Coupling Replaced & Addl Measures Taken
page: https://kanterella.com/05000293/LER-2D1988-2D012-2C_-3Aon_880425-2Cautomatic_Start_of_Loop_a_Reactor_Bldg_Closed_Cooling_Water_Sys_Pump_a_Occurred.Caused_by_Accelerated_Wear_Induced_Failure_of_Couplin…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1988-012, :on 880425,automatic Start of Loop a Reactor Bldg Closed Cooling Water Sys Pump a Occurred.Caused by Accelerated Wear Induced Failure of Coupling in Pump B. Failed Coupling Replaced & Addl Measures Taken

05000293/LER-1988-013, :on 880425,inadvertent Manual Start of Emergency Diesel Generator (EDG) B Occurred.Caused by Personnel Error.Improvements to Local Control Panel to EDG Identified & Tracked
type: Subject
page: https://kanterella.com/05000293/LER-2D1988-2D013-2C_-3Aon_880425-2Cinadvertent_Manual_Start_of_Emergency_Diesel_Generator_-28EDG-29_B_Occurred.Caused_by_Personnel_Error.Improvements_to_Local_Control_P…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1988-013, :on 880425,inadvertent Manual Start of Emergency Diesel Generator (EDG) B Occurred.Caused by Personnel Error.Improvements to Local Control Panel to EDG Identified & Tracked

LER-1988-008-03, :on 880731,steam Generator Main Feedwater Regulating Valve Failed in Closed Position & Reactor Manually Tripped.Caused by Personnel Error.Broken Wire on Valve 2CFSV0320 Repaired
type: Subject
label: 05000370/LER-1988-008-03, :on 880731,steam Generator Main Feedwater Regulating Valve Failed in Closed Position & Reactor Manually Tripped.Caused by Personnel Error.Broken Wire on Valve 2CFSV0320 Repaired
page: https://kanterella.com/05000370/LER-2D1988-2D008-2D03-2C_-3Aon_880731-2Csteam_Generator_Main_Feedwater_Regulating_Valve_Failed_in_Closed_Position_-26_Reactor_Manually_Tripped.Caused_by_Personnel_Error…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1988-008-03, :on 880731,steam Generator Main Feedwater Regulating Valve Failed in Closed Position & Reactor Manually Tripped.Caused by Personnel Error.Broken Wire on Valve 2CFSV0320 Repaired

LER-1988-005-02, :on 880419,reactor Scram Occurred After Personnel Exchanged Turbine Lubrication Oil Coolers.Caused by Personnel Error.Involved Operations Personnel Counseled & Procedures Revised
type: Subject
label: 05000321/LER-1988-005-02, :on 880419,reactor Scram Occurred After Personnel Exchanged Turbine Lubrication Oil Coolers.Caused by Personnel Error.Involved Operations Personnel Counseled & Procedures Revised
page: https://kanterella.com/05000321/LER-2D1988-2D005-2D02-2C_-3Aon_880419-2Creactor_Scram_Occurred_After_Personnel_Exchanged_Turbine_Lubrication_Oil_Coolers.Caused_by_Personnel_Error.Involved_Operations_P…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1988-005-02, :on 880419,reactor Scram Occurred After Personnel Exchanged Turbine Lubrication Oil Coolers.Caused by Personnel Error.Involved Operations Personnel Counseled & Procedures Revised

LER-1988-014, :on 880821,ESFAS Auxiliary Feedwater Pump Low Suction Pressure Instrumentation Channel Check Procedure Found Not to Meet Tech Spec 4.3.2.1 Requirements.Caused by Contractor & Personnel Error.Procedure Changed
type: Subject
label: 05000482/LER-1988-014, :on 880821,ESFAS Auxiliary Feedwater Pump Low Suction Pressure Instrumentation Channel Check Procedure Found Not to Meet Tech Spec 4.3.2.1 Requirements.Caused by Contractor & Personnel Error.Procedure Changed
page: https://kanterella.com/05000482/LER-2D1988-2D014-2C_-3Aon_880821-2CESFAS_Auxiliary_Feedwater_Pump_Low_Suction_Pressure_Instrumentation_Channel_Check_Procedure_Found_Not_to_Meet_Tech_Spec_4.3.2.1_Requi…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000482/LER-1988-014, :on 880821,ESFAS Auxiliary Feedwater Pump Low Suction Pressure Instrumentation Channel Check Procedure Found Not to Meet Tech Spec 4.3.2.1 Requirements.Caused by Contractor & Personnel Error.Procedure Changed

LER-1988-015, :on 880418,emergency Diesel Generator auto-started Due to Unplanned Test Start Signal.Caused by Personnel Error.Training Memo Issued to All Field Engineers Requiring Completion of Stated Form
type: Subject
label: 05000352/LER-1988-015, :on 880418,emergency Diesel Generator auto-started Due to Unplanned Test Start Signal.Caused by Personnel Error.Training Memo Issued to All Field Engineers Requiring Completion of Stated Form
page: https://kanterella.com/05000352/LER-2D1988-2D015-2C_-3Aon_880418-2Cemergency_Diesel_Generator_auto-2Dstarted_Due_to_Unplanned_Test_Start_Signal.Caused_by_Personnel_Error.Training_Memo_Issued_to_All_Fi…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1988-015, :on 880418,emergency Diesel Generator auto-started Due to Unplanned Test Start Signal.Caused by Personnel Error.Training Memo Issued to All Field Engineers Requiring Completion of Stated Form

LER-1988-006, :on 880414,potential Deviation from Quality Initiated to Rept Spurious Actuations of Control Room Technical Support Ctr Essential HVAC Sys.Caused by High Temp Indications.Temp Switch Changed
type: Subject
label: 05000312/LER-1988-006, :on 880414,potential Deviation from Quality Initiated to Rept Spurious Actuations of Control Room Technical Support Ctr Essential HVAC Sys.Caused by High Temp Indications.Temp Switch Changed
page: https://kanterella.com/05000312/LER-2D1988-2D006-2C_-3Aon_880414-2Cpotential_Deviation_from_Quality_Initiated_to_Rept_Spurious_Actuations_of_Control_Room_Technical_Support_Ctr_Essential_HVAC_Sys.Cause…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1988-006, :on 880414,potential Deviation from Quality Initiated to Rept Spurious Actuations of Control Room Technical Support Ctr Essential HVAC Sys.Caused by High Temp Indications.Temp Switch Changed

LER-1988-019, :on 880407,inadequate Work Control Caused ECCS Pumps to Be Inoperable Resulting in Inadvertent Entry Into Tech Spec 3.0.3.Plant Procedure Revised to Ensure Activities Controlled During Work Impact Evaluation
type: Subject
label: 05000328/LER-1988-019, :on 880407,inadequate Work Control Caused ECCS Pumps to Be Inoperable Resulting in Inadvertent Entry Into Tech Spec 3.0.3.Plant Procedure Revised to Ensure Activities Controlled During Work Impact Evaluation
page: https://kanterella.com/05000328/LER-2D1988-2D019-2C_-3Aon_880407-2Cinadequate_Work_Control_Caused_ECCS_Pumps_to_Be_Inoperable_Resulting_in_Inadvertent_Entry_Into_Tech_Spec_3.0.3.Plant_Procedure_Revise…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1988-019, :on 880407,inadequate Work Control Caused ECCS Pumps to Be Inoperable Resulting in Inadvertent Entry Into Tech Spec 3.0.3.Plant Procedure Revised to Ensure Activities Controlled During Work Impact Evaluation

LER-1986-001-01, :on 860107,reactor Trip Occurred Due to Loss of Instrument Air.Caused by Hot Gas Bypass Valve in Dryer Improperly Adjusted to Maintain Air Temp Above Freezing. Operator Attempted to Gain Manual Control
type: Subject
label: 05000280/LER-1986-001-01, :on 860107,reactor Trip Occurred Due to Loss of Instrument Air.Caused by Hot Gas Bypass Valve in Dryer Improperly Adjusted to Maintain Air Temp Above Freezing. Operator Attempted to Gain Manual Control
page: https://kanterella.com/05000280/LER-2D1986-2D001-2D01-2C_-3Aon_860107-2Creactor_Trip_Occurred_Due_to_Loss_of_Instrument_Air.Caused_by_Hot_Gas_Bypass_Valve_in_Dryer_Improperly_Adjusted_to_Maintain_Air_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000280/LER-1986-001-01, :on 860107,reactor Trip Occurred Due to Loss of Instrument Air.Caused by Hot Gas Bypass Valve in Dryer Improperly Adjusted to Maintain Air Temp Above Freezing. Operator Attempted to Gain Manual Control

LER-1986-002, :on 860107,during HPCI Sys Monthly Surveillance Test,Hpci Pump Flow Controller Would Not Respond in Auto Mode.Caused by Switch Contacts Prohibiting Reading of Setpoint.Switch Mechanisms Cleaned
type: Subject
label: 05000263/LER-1986-002, :on 860107,during HPCI Sys Monthly Surveillance Test,Hpci Pump Flow Controller Would Not Respond in Auto Mode.Caused by Switch Contacts Prohibiting Reading of Setpoint.Switch Mechanisms Cleaned
page: https://kanterella.com/05000263/LER-2D1986-2D002-2C_-3Aon_860107-2Cduring_HPCI_Sys_Monthly_Surveillance_Test-2CHpci_Pump_Flow_Controller_Would_Not_Respond_in_Auto_Mode.Caused_by_Switch_Contacts_Prohib…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000263/LER-1986-002, :on 860107,during HPCI Sys Monthly Surveillance Test,Hpci Pump Flow Controller Would Not Respond in Auto Mode.Caused by Switch Contacts Prohibiting Reading of Setpoint.Switch Mechanisms Cleaned

LER-1988-008-02, :on 880331,full Reactor Protection Sys Trip Occurred When Mode Switch of APRM Rotated Beyond Switch Mechanical Stop Position.Caused by Improperly Configured Switch.Switch Replaced
type: Subject
label: 05000324/LER-1988-008-02, :on 880331,full Reactor Protection Sys Trip Occurred When Mode Switch of APRM Rotated Beyond Switch Mechanical Stop Position.Caused by Improperly Configured Switch.Switch Replaced
page: https://kanterella.com/05000324/LER-2D1988-2D008-2D02-2C_-3Aon_880331-2Cfull_Reactor_Protection_Sys_Trip_Occurred_When_Mode_Switch_of_APRM_Rotated_Beyond_Switch_Mechanical_Stop_Position.Caused_by_Impr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000324/LER-1988-008-02, :on 880331,full Reactor Protection Sys Trip Occurred When Mode Switch of APRM Rotated Beyond Switch Mechanical Stop Position.Caused by Improperly Configured Switch.Switch Replaced

ML20151Y084
type: Subject
page: https://kanterella.com/ML20151Y084
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20151Y084

LER-1988-023, :on 880528 & 0713,RWCU Sys Manually Isolated by Operator Action.Caused by Separate Instrument Line Compression Failures.Instrument Lines Repaired & RWCU Sys Operating Procedures Revised
type: Subject
label: 05000341/LER-1988-023, :on 880528 & 0713,RWCU Sys Manually Isolated by Operator Action.Caused by Separate Instrument Line Compression Failures.Instrument Lines Repaired & RWCU Sys Operating Procedures Revised
page: https://kanterella.com/05000341/LER-2D1988-2D023-2C_-3Aon_880528_-26_0713-2CRWCU_Sys_Manually_Isolated_by_Operator_Action.Caused_by_Separate_Instrument_Line_Compression_Failures.Instrument_Lines_Repai…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1988-023, :on 880528 & 0713,RWCU Sys Manually Isolated by Operator Action.Caused by Separate Instrument Line Compression Failures.Instrument Lines Repaired & RWCU Sys Operating Procedures Revised

LER-1986-024, :on 860822,determined That nonsafety-related Piping Sys Penetrating Reactor bldg-turbine Bldg Wall Not Seismically Qualified.Caused by Design Oversight.Util Will Demonstrate Plant Qualification
type: Subject
label: 05000259/LER-1986-024, :on 860822,determined That nonsafety-related Piping Sys Penetrating Reactor bldg-turbine Bldg Wall Not Seismically Qualified.Caused by Design Oversight.Util Will Demonstrate Plant Qualification
page: https://kanterella.com/05000259/LER-2D1986-2D024-2C_-3Aon_860822-2Cdetermined_That_nonsafety-2Drelated_Piping_Sys_Penetrating_Reactor_bldg-2Dturbine_Bldg_Wall_Not_Seismically_Qualified.Caused_by_Desig…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1986-024, :on 860822,determined That nonsafety-related Piping Sys Penetrating Reactor bldg-turbine Bldg Wall Not Seismically Qualified.Caused by Design Oversight.Util Will Demonstrate Plant Qualification

LER-1985-006-01, :on 851231,while in Mode 6,containment Purge Isolation Signal & Control Room Emergency Filtration Actuation Signal Received on Both Channels.Caused by Improper Reset by Operator.Operator Counseled
type: Subject
label: 05000529/LER-1985-006-01, :on 851231,while in Mode 6,containment Purge Isolation Signal & Control Room Emergency Filtration Actuation Signal Received on Both Channels.Caused by Improper Reset by Operator.Operator Counseled
page: https://kanterella.com/05000529/LER-2D1985-2D006-2D01-2C_-3Aon_851231-2Cwhile_in_Mode_6-2Ccontainment_Purge_Isolation_Signal_-26_Control_Room_Emergency_Filtration_Actuation_Signal_Received_on_Both_Cha…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000529/LER-1985-006-01, :on 851231,while in Mode 6,containment Purge Isolation Signal & Control Room Emergency Filtration Actuation Signal Received on Both Channels.Caused by Improper Reset by Operator.Operator Counseled

LER-1986-001, :on 860107 & 12,discovered That Two Tech Spec Fire Doors Inoperable.Caused by Contractor Personnel Error. All Plant & Contractor Personnel Reinstructed in Station Procedures & Regulations
type: Subject
label: 05000213/LER-1986-001, :on 860107 & 12,discovered That Two Tech Spec Fire Doors Inoperable.Caused by Contractor Personnel Error. All Plant & Contractor Personnel Reinstructed in Station Procedures & Regulations
page: https://kanterella.com/05000213/LER-2D1986-2D001-2C_-3Aon_860107_-26_12-2Cdiscovered_That_Two_Tech_Spec_Fire_Doors_Inoperable.Caused_by_Contractor_Personnel_Error._All_Plant_-26_Contractor_Personnel_R…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-001, :on 860107 & 12,discovered That Two Tech Spec Fire Doors Inoperable.Caused by Contractor Personnel Error. All Plant & Contractor Personnel Reinstructed in Station Procedures & Regulations

LER-1988-021-01, :on 880623,fire Protection Console Operator Erroneously Initiated Hourly Firewatch for Interior Doghouse.Caused by Inaccurate Info on Fire Protection Graphic Display.Firewatch Reestablished
type: Subject
label: 05000413/LER-1988-021-01, :on 880623,fire Protection Console Operator Erroneously Initiated Hourly Firewatch for Interior Doghouse.Caused by Inaccurate Info on Fire Protection Graphic Display.Firewatch Reestablished
page: https://kanterella.com/05000413/LER-2D1988-2D021-2D01-2C_-3Aon_880623-2Cfire_Protection_Console_Operator_Erroneously_Initiated_Hourly_Firewatch_for_Interior_Doghouse.Caused_by_Inaccurate_Info_on_Fire_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1988-021-01, :on 880623,fire Protection Console Operator Erroneously Initiated Hourly Firewatch for Interior Doghouse.Caused by Inaccurate Info on Fire Protection Graphic Display.Firewatch Reestablished

05000414/LER-1988-024, :on 880622,turbine Driven Auxiliary Feedwater Pump Automatic Start Due to Loss of Alternate Control Power. Cause Undetermined.Procedure Changes Implemented
type: Subject
page: https://kanterella.com/05000414/LER-2D1988-2D024-2C_-3Aon_880622-2Cturbine_Driven_Auxiliary_Feedwater_Pump_Automatic_Start_Due_to_Loss_of_Alternate_Control_Power._Cause_Undetermined.Procedure_Changes_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1988-024, :on 880622,turbine Driven Auxiliary Feedwater Pump Automatic Start Due to Loss of Alternate Control Power. Cause Undetermined.Procedure Changes Implemented

05000325/LER-1988-015-01, :on 880612,control Bldg Emergency Air Filtration & HVAC Sys Automatically Isolated Due to Actuation of Chlorine Detector in Tank Car Storage Area. Cause Undetermined
type: Subject
page: https://kanterella.com/05000325/LER-2D1988-2D015-2D01-2C_-3Aon_880612-2Ccontrol_Bldg_Emergency_Air_Filtration_-26_HVAC_Sys_Automatically_Isolated_Due_to_Actuation_of_Chlorine_Detector_in_Tank_Car_Stor…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1988-015-01, :on 880612,control Bldg Emergency Air Filtration & HVAC Sys Automatically Isolated Due to Actuation of Chlorine Detector in Tank Car Storage Area. Cause Undetermined

Valves Open
type: Subject
label: 05000334/LER-1988-003-01, :on 880225,inadvertent Start of Auxiliary Feedwater Pump Occurred.Caused by Procedural Deficiency in Surveillance Test.Procedure Revised to Transfer Steam Inlet Valve Control W/Valves Open
page: https://kanterella.com/05000334/LER-2D1988-2D003-2D01-2C_-3Aon_880225-2Cinadvertent_Start_of_Auxiliary_Feedwater_Pump_Occurred.Caused_by_Procedural_Deficiency_in_Surveillance_Test.Procedure_Revised_to…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1988-003-01, :on 880225,inadvertent Start of Auxiliary Feedwater Pump Occurred.Caused by Procedural Deficiency in Surveillance Test.Procedure Revised to Transfer Steam Inlet Valve Control W/Valves Open

Personnel
type: Subject
label: 05000370/LER-1988-002-04, :on 880527,both Trains of Annulus Ventilation Sys Became Inoperable During Shutdown Activity.Caused by Deficient Communication Among Work Groups.Rept Will Be Reviewed W/Personnel
page: https://kanterella.com/05000370/LER-2D1988-2D002-2D04-2C_-3Aon_880527-2Cboth_Trains_of_Annulus_Ventilation_Sys_Became_Inoperable_During_Shutdown_Activity.Caused_by_Deficient_Communication_Among_Work_G…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1988-002-04, :on 880527,both Trains of Annulus Ventilation Sys Became Inoperable During Shutdown Activity.Caused by Deficient Communication Among Work Groups.Rept Will Be Reviewed W/Personnel

LER-1987-006-01, :on 870124,operation of All Equipment Affected by Safety Injection Test Signal Not Verified.Caused by Deficient Surveillance Instructions SI-26.1A & SI-26.2A. SI-26.1A & SI-26.2A Revised
type: Subject
label: 05000327/LER-1987-006-01, :on 870124,operation of All Equipment Affected by Safety Injection Test Signal Not Verified.Caused by Deficient Surveillance Instructions SI-26.1A & SI-26.2A. SI-26.1A & SI-26.2A Revised
page: https://kanterella.com/05000327/LER-2D1987-2D006-2D01-2C_-3Aon_870124-2Coperation_of_All_Equipment_Affected_by_Safety_Injection_Test_Signal_Not_Verified.Caused_by_Deficient_Surveillance_Instructions_S…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1987-006-01, :on 870124,operation of All Equipment Affected by Safety Injection Test Signal Not Verified.Caused by Deficient Surveillance Instructions SI-26.1A & SI-26.2A. SI-26.1A & SI-26.2A Revised

05000278/LER-1994-006-03, :on 941110,identified That Flow Input Signals to APRMs Reading Higher than Actual Core Flow Conditions. Caused by Change in Plant Operating Strategy.Aprms Adjusted
type: Subject
page: https://kanterella.com/05000278/LER-2D1994-2D006-2D03-2C_-3Aon_941110-2Cidentified_That_Flow_Input_Signals_to_APRMs_Reading_Higher_than_Actual_Core_Flow_Conditions._Caused_by_Change_in_Plant_Operating…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000278/LER-1994-006-03, :on 941110,identified That Flow Input Signals to APRMs Reading Higher than Actual Core Flow Conditions. Caused by Change in Plant Operating Strategy.Aprms Adjusted

LER-1988-001-01, :on 880111,ltr Received from S&W Revealing That Lower Support Frame of Containment Spray HXs 2A & 2B Could Be Overstressed During Design Basis Seismic Event.Caused by Design Deficiency.Frames Modified
type: Subject
label: 05000328/LER-1988-001-01, :on 880111,ltr Received from S&W Revealing That Lower Support Frame of Containment Spray HXs 2A & 2B Could Be Overstressed During Design Basis Seismic Event.Caused by Design Deficiency.Frames Modified
page: https://kanterella.com/05000328/LER-2D1988-2D001-2D01-2C_-3Aon_880111-2Cltr_Received_from_S-26W_Revealing_That_Lower_Support_Frame_of_Containment_Spray_HXs_2A_-26_2B_Could_Be_Overstressed_During_Desig…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1988-001-01, :on 880111,ltr Received from S&W Revealing That Lower Support Frame of Containment Spray HXs 2A & 2B Could Be Overstressed During Design Basis Seismic Event.Caused by Design Deficiency.Frames Modified

P Switch & Gauge.Wiring Will Be Corrected
type: Subject
label: 05000370/LER-1987-021-02, :on 871130,reactor Trip Occurred.Caused by Reversed Wiring on Generator Stator Cooling Differential Pressure (D/P) Switch Circuitry Combined W/Calibr Drift of D/P Switch & Gauge.Wiring Will Be Corrected
page: https://kanterella.com/05000370/LER-2D1987-2D021-2D02-2C_-3Aon_871130-2Creactor_Trip_Occurred.Caused_by_Reversed_Wiring_on_Generator_Stator_Cooling_Differential_Pressure_-28D/P-29_Switch_Circuitry_Com…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1987-021-02, :on 871130,reactor Trip Occurred.Caused by Reversed Wiring on Generator Stator Cooling Differential Pressure (D/P) Switch Circuitry Combined W/Calibr Drift of D/P Switch & Gauge.Wiring Will Be Corrected

Plastic
type: Subject
label: 05000483/LER-1988-002, :on 880107,two RHR Trains Rendered Inoperable When Operator Inadvertently Closed cross-connect Valve. Caused by Control Switches Being in Close Proximity to Each Other.Control Switches Covered W/Plastic
page: https://kanterella.com/05000483/LER-2D1988-2D002-2C_-3Aon_880107-2Ctwo_RHR_Trains_Rendered_Inoperable_When_Operator_Inadvertently_Closed_cross-2Dconnect_Valve._Caused_by_Control_Switches_Being_in_Clos…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1988-002, :on 880107,two RHR Trains Rendered Inoperable When Operator Inadvertently Closed cross-connect Valve. Caused by Control Switches Being in Close Proximity to Each Other.Control Switches Covered W/Plastic

LER-1988-001, :on 880105,refueling Water Storage Tank Level Indicators Declared Inoperable When Instruments Failed to lo-lo Position.Caused by Sensing Lines Freezing.Design Changes Implemented
type: Subject
label: 05000412/LER-1988-001, :on 880105,refueling Water Storage Tank Level Indicators Declared Inoperable When Instruments Failed to lo-lo Position.Caused by Sensing Lines Freezing.Design Changes Implemented
page: https://kanterella.com/05000412/LER-2D1988-2D001-2C_-3Aon_880105-2Crefueling_Water_Storage_Tank_Level_Indicators_Declared_Inoperable_When_Instruments_Failed_to_lo-2Dlo_Position.Caused_by_Sensing_Lines…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1988-001, :on 880105,refueling Water Storage Tank Level Indicators Declared Inoperable When Instruments Failed to lo-lo Position.Caused by Sensing Lines Freezing.Design Changes Implemented

LER-1987-037, :on 871206,reactor Tripped Manually Following Load Rejection Transient.Caused by Failure of Load Decrease Pushbutton in Electrohydraulic Control Sys.Load Decrease Pushbutton Replaced
type: Subject
label: 05000344/LER-1987-037, :on 871206,reactor Tripped Manually Following Load Rejection Transient.Caused by Failure of Load Decrease Pushbutton in Electrohydraulic Control Sys.Load Decrease Pushbutton Replaced
page: https://kanterella.com/05000344/LER-2D1987-2D037-2C_-3Aon_871206-2Creactor_Tripped_Manually_Following_Load_Rejection_Transient.Caused_by_Failure_of_Load_Decrease_Pushbutton_in_Electrohydraulic_Control…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000344/LER-1987-037, :on 871206,reactor Tripped Manually Following Load Rejection Transient.Caused by Failure of Load Decrease Pushbutton in Electrohydraulic Control Sys.Load Decrease Pushbutton Replaced

LER-1988-005, :on 880212,smoke Discovered Coming from Speed Increaser Unit for Centrifugal Charging Pump 2A-A.Caused by Bolts Backing Out Due to Lack of Periodic Adjustments.Speed Increaser Lube Oil Pump 2A-A CCP Replaced
type: Subject
label: 05000328/LER-1988-005, :on 880212,smoke Discovered Coming from Speed Increaser Unit for Centrifugal Charging Pump 2A-A.Caused by Bolts Backing Out Due to Lack of Periodic Adjustments.Speed Increaser Lube Oil Pump 2A-A CCP Replaced
page: https://kanterella.com/05000328/LER-2D1988-2D005-2C_-3Aon_880212-2Csmoke_Discovered_Coming_from_Speed_Increaser_Unit_for_Centrifugal_Charging_Pump_2A-2DA.Caused_by_Bolts_Backing_Out_Due_to_Lack_of_Per…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1988-005, :on 880212,smoke Discovered Coming from Speed Increaser Unit for Centrifugal Charging Pump 2A-A.Caused by Bolts Backing Out Due to Lack of Periodic Adjustments.Speed Increaser Lube Oil Pump 2A-A CCP Replaced

LER-1988-010-01, :on 880203,during NRC Equipment Qualification Insp,Damaged RHR Sys Rotork Electric Motor Operated Valve Actuator Discovered.Caused by Improper Installation of Motor to Actuator on Valve 2ND2A.Valve Repaired
type: Subject
label: 05000414/LER-1988-010-01, :on 880203,during NRC Equipment Qualification Insp,Damaged RHR Sys Rotork Electric Motor Operated Valve Actuator Discovered.Caused by Improper Installation of Motor to Actuator on Valve 2ND2A.Valve Repaired
page: https://kanterella.com/05000414/LER-2D1988-2D010-2D01-2C_-3Aon_880203-2Cduring_NRC_Equipment_Qualification_Insp-2CDamaged_RHR_Sys_Rotork_Electric_Motor_Operated_Valve_Actuator_Discovered.Caused_by_Imp…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1988-010-01, :on 880203,during NRC Equipment Qualification Insp,Damaged RHR Sys Rotork Electric Motor Operated Valve Actuator Discovered.Caused by Improper Installation of Motor to Actuator on Valve 2ND2A.Valve Repaired

Start Relay Logic Circuitry.Fuse Replaced
type: Subject
label: 05000324/LER-1988-004-02, :on 880224,standby Gas Treatment Sys Trains 2A & 2B Autostarted & Reactor Bldg Ventilation Autoisolated. Caused by Blown Power Supply Fuse in Div I Trouble/Start Relay Logic Circuitry.Fuse Replaced
page: https://kanterella.com/05000324/LER-2D1988-2D004-2D02-2C_-3Aon_880224-2Cstandby_Gas_Treatment_Sys_Trains_2A_-26_2B_Autostarted_-26_Reactor_Bldg_Ventilation_Autoisolated._Caused_by_Blown_Power_Supply_F…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000324/LER-1988-004-02, :on 880224,standby Gas Treatment Sys Trains 2A & 2B Autostarted & Reactor Bldg Ventilation Autoisolated. Caused by Blown Power Supply Fuse in Div I Trouble/Start Relay Logic Circuitry.Fuse Replaced

LER-1988-004, :on 880202,unplanned Automatic Actuations of Portions of Primary Containment & Reactor Bldg Isolation Control Sys Occurred.Caused by Inadequate Instructions. Sys Restored to Svc.Instructions Revised
type: Subject
label: 05000293/LER-1988-004, :on 880202,unplanned Automatic Actuations of Portions of Primary Containment & Reactor Bldg Isolation Control Sys Occurred.Caused by Inadequate Instructions. Sys Restored to Svc.Instructions Revised
page: https://kanterella.com/05000293/LER-2D1988-2D004-2C_-3Aon_880202-2Cunplanned_Automatic_Actuations_of_Portions_of_Primary_Containment_-26_Reactor_Bldg_Isolation_Control_Sys_Occurred.Caused_by_Inadequat…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1988-004, :on 880202,unplanned Automatic Actuations of Portions of Primary Containment & Reactor Bldg Isolation Control Sys Occurred.Caused by Inadequate Instructions. Sys Restored to Svc.Instructions Revised

LER-1987-018, :on 871123,24 & 26,automatic Actuations in RWCU Sys Portion of Primary Containment Isolation Control Sys Occurred.Caused by Partially Clogged Pressure Gauge Snubbers & Failed Coil
type: Subject
label: 05000293/LER-1987-018, :on 871123,24 & 26,automatic Actuations in RWCU Sys Portion of Primary Containment Isolation Control Sys Occurred.Caused by Partially Clogged Pressure Gauge Snubbers & Failed Coil
page: https://kanterella.com/05000293/LER-2D1987-2D018-2C_-3Aon_871123-2C24_-26_26-2Cautomatic_Actuations_in_RWCU_Sys_Portion_of_Primary_Containment_Isolation_Control_Sys_Occurred.Caused_by_Partially_Clogge…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1987-018, :on 871123,24 & 26,automatic Actuations in RWCU Sys Portion of Primary Containment Isolation Control Sys Occurred.Caused by Partially Clogged Pressure Gauge Snubbers & Failed Coil

05000316/LER-1985-005, :on 850130,one Cell on Train AB Battery Had Unacceptable Specific Gravity Reading.Cell Replacement Completed & Cross Tie Breaker Opened Restoring Both Dc Bus Trains
type: Subject
page: https://kanterella.com/05000316/LER-2D1985-2D005-2C_-3Aon_850130-2Cone_Cell_on_Train_AB_Battery_Had_Unacceptable_Specific_Gravity_Reading.Cell_Replacement_Completed_-26_Cross_Tie_Breaker_Opened_Restor…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000316/LER-1985-005, :on 850130,one Cell on Train AB Battery Had Unacceptable Specific Gravity Reading.Cell Replacement Completed & Cross Tie Breaker Opened Restoring Both Dc Bus Trains

05000247/LER-1986-009, :on 860315,LPSI Setpoint Found Out of Spec. Review of Cause Continuing.Instruments Calibr on 860315. Calibr Confirmed on 860319
type: Subject
page: https://kanterella.com/05000247/LER-2D1986-2D009-2C_-3Aon_860315-2CLPSI_Setpoint_Found_Out_of_Spec._Review_of_Cause_Continuing.Instruments_Calibr_on_860315._Calibr_Confirmed_on_860319
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000247/LER-1986-009, :on 860315,LPSI Setpoint Found Out of Spec. Review of Cause Continuing.Instruments Calibr on 860315. Calibr Confirmed on 860319

LER-1986-004-02, :on 860303,primary Containment Group 6 Isolation,Automatic Isolation of Reactor Bldg Vent Sys & Automatic Start of Standby Gas Treatment Sys Occurred. Caused by Blown Fuse F-5.Fuse Replaced
type: Subject
label: 05000324/LER-1986-004-02, :on 860303,primary Containment Group 6 Isolation,Automatic Isolation of Reactor Bldg Vent Sys & Automatic Start of Standby Gas Treatment Sys Occurred. Caused by Blown Fuse F-5.Fuse Replaced
page: https://kanterella.com/05000324/LER-2D1986-2D004-2D02-2C_-3Aon_860303-2Cprimary_Containment_Group_6_Isolation-2CAutomatic_Isolation_of_Reactor_Bldg_Vent_Sys_-26_Automatic_Start_of_Standby_Gas_Treatmen…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000324/LER-1986-004-02, :on 860303,primary Containment Group 6 Isolation,Automatic Isolation of Reactor Bldg Vent Sys & Automatic Start of Standby Gas Treatment Sys Occurred. Caused by Blown Fuse F-5.Fuse Replaced

LER-1985-037-01, :on 851218,during Surveillance Procedure 57SV-E41-003-2,RCIC Outboard Primary Containment Isolation Valve 2E51-F008 Isolated.Caused by Personnel Error. Personnel Disciplined & Valve Reopened
type: Subject
label: 05000366/LER-1985-037-01, :on 851218,during Surveillance Procedure 57SV-E41-003-2,RCIC Outboard Primary Containment Isolation Valve 2E51-F008 Isolated.Caused by Personnel Error. Personnel Disciplined & Valve Reopened
page: https://kanterella.com/05000366/LER-2D1985-2D037-2D01-2C_-3Aon_851218-2Cduring_Surveillance_Procedure_57SV-2DE41-2D003-2D2-2CRCIC_Outboard_Primary_Containment_Isolation_Valve_2E51-2DF008_Isolated.Caus…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000366/LER-1985-037-01, :on 851218,during Surveillance Procedure 57SV-E41-003-2,RCIC Outboard Primary Containment Isolation Valve 2E51-F008 Isolated.Caused by Personnel Error. Personnel Disciplined & Valve Reopened

LER-1986-005-01, :on 860218,0301 & 05,fire Watch Could Not Enter Applicable Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Faulty Screw.On 860303,fire Watch Not Initiated Due to Personnel Error
type: Subject
label: 05000327/LER-1986-005-01, :on 860218,0301 & 05,fire Watch Could Not Enter Applicable Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Faulty Screw.On 860303,fire Watch Not Initiated Due to Personnel Error
page: https://kanterella.com/05000327/LER-2D1986-2D005-2D01-2C_-3Aon_860218-2C0301_-26_05-2Cfire_Watch_Could_Not_Enter_Applicable_Rooms_to_Check_for_Fires_Due_to_Inoperable_Fire_Doors.Caused_by_Faulty_Screw…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1986-005-01, :on 860218,0301 & 05,fire Watch Could Not Enter Applicable Rooms to Check for Fires Due to Inoperable Fire Doors.Caused by Faulty Screw.On 860303,fire Watch Not Initiated Due to Personnel Error

unit at 100- Power,Turbine Runback to Approx 540 Mwe Occurred.Caused by Failure of RPI Inverter Due to Positive Dc Spike Coming from 3AR2 Relay Coil.Fuses & Relay Coil Replaced
type: Subject
label: 05000250/LER-1985-031, :on 851007,w/unit at 100% Power,Turbine Runback to Approx 540 Mwe Occurred.Caused by Failure of RPI Inverter Due to Positive Dc Spike Coming from 3AR2 Relay Coil.Fuses & Relay Coil Replaced
page: https://kanterella.com/05000250/LER-2D1985-2D031-2C_-3Aon_851007-2Cw/unit_at_100-_Power-2CTurbine_Runback_to_Approx_540_Mwe_Occurred.Caused_by_Failure_of_RPI_Inverter_Due_to_Positive_Dc_Spike_Coming_f…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1985-031, :on 851007,w/unit at 100% Power,Turbine Runback to Approx 540 Mwe Occurred.Caused by Failure of RPI Inverter Due to Positive Dc Spike Coming from 3AR2 Relay Coil.Fuses & Relay Coil Replaced

LER-1984-044, :on 840613,average Rod Scram Insertion Time Required by Tech Spec 3.1.3.4 Not Met for All Rods. Apparently Caused by Poor Control Rod Scram Pilot Valve Performance.Valves Modified
type: Subject
label: 05000387/LER-1984-044, :on 840613,average Rod Scram Insertion Time Required by Tech Spec 3.1.3.4 Not Met for All Rods. Apparently Caused by Poor Control Rod Scram Pilot Valve Performance.Valves Modified
page: https://kanterella.com/05000387/LER-2D1984-2D044-2C_-3Aon_840613-2Caverage_Rod_Scram_Insertion_Time_Required_by_Tech_Spec_3.1.3.4_Not_Met_for_All_Rods._Apparently_Caused_by_Poor_Control_Rod_Scram_Pilo…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000387/LER-1984-044, :on 840613,average Rod Scram Insertion Time Required by Tech Spec 3.1.3.4 Not Met for All Rods. Apparently Caused by Poor Control Rod Scram Pilot Valve Performance.Valves Modified

LER-1985-018, :on 851010,low Air Pressure Start Test of Tech Spec Section 4.6.7.b.4 Failed.Caused by Need to Energize or Manually Bypass Solenoids on Governor Sys.Mods to Governor Sys & Sys Manual Start Performed
type: Subject
label: 05000220/LER-1985-018, :on 851010,low Air Pressure Start Test of Tech Spec Section 4.6.7.b.4 Failed.Caused by Need to Energize or Manually Bypass Solenoids on Governor Sys.Mods to Governor Sys & Sys Manual Start Performed
page: https://kanterella.com/05000220/LER-2D1985-2D018-2C_-3Aon_851010-2Clow_Air_Pressure_Start_Test_of_Tech_Spec_Section_4.6.7.b.4_Failed.Caused_by_Need_to_Energize_or_Manually_Bypass_Solenoids_on_Governor…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000220/LER-1985-018, :on 851010,low Air Pressure Start Test of Tech Spec Section 4.6.7.b.4 Failed.Caused by Need to Energize or Manually Bypass Solenoids on Governor Sys.Mods to Governor Sys & Sys Manual Start Performed

LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring
type: Subject
label: 05000312/LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring
page: https://kanterella.com/05000312/LER-2D1985-2D021-2C_-3Aon_851119-2Cemergency_Diesel_Generator_a_Automatically_Started_When_Bus_4A_Normal_Supply_Breaker_Tripped_on_Overvoltage_Condition.Caused_by_Techn…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1985-021, :on 851119,emergency Diesel Generator a Automatically Started When Bus 4A Normal Supply Breaker Tripped on Overvoltage Condition.Caused by Technicians Disconnecting Ground Wiring

LER-1985-050, :on 851127,control Room Ventilation Isolation & Containment Purge Isolation Signal Occurred.Caused by Failed Microprocessor Fuse for Radiation Monitor & Tripped Breaker.Fuse Replaced & Breaker Closed
type: Subject
label: 05000483/LER-1985-050, :on 851127,control Room Ventilation Isolation & Containment Purge Isolation Signal Occurred.Caused by Failed Microprocessor Fuse for Radiation Monitor & Tripped Breaker.Fuse Replaced & Breaker Closed
page: https://kanterella.com/05000483/LER-2D1985-2D050-2C_-3Aon_851127-2Ccontrol_Room_Ventilation_Isolation_-26_Containment_Purge_Isolation_Signal_Occurred.Caused_by_Failed_Microprocessor_Fuse_for_Radiation…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-050, :on 851127,control Room Ventilation Isolation & Containment Purge Isolation Signal Occurred.Caused by Failed Microprocessor Fuse for Radiation Monitor & Tripped Breaker.Fuse Replaced & Breaker Closed

LER-1984-017, :on 841024,sonar Insp of Flood Protection Dike Revealed Degradation of Submerged Toe in Vicinity of River Water Pump Houses.Sept 1985 Insp Revealed Same Degradation. Baseline Degradation Criteria Changed
type: Subject
label: 05000320/LER-1984-017, :on 841024,sonar Insp of Flood Protection Dike Revealed Degradation of Submerged Toe in Vicinity of River Water Pump Houses.Sept 1985 Insp Revealed Same Degradation. Baseline Degradation Criteria Changed
page: https://kanterella.com/05000320/LER-2D1984-2D017-2C_-3Aon_841024-2Csonar_Insp_of_Flood_Protection_Dike_Revealed_Degradation_of_Submerged_Toe_in_Vicinity_of_River_Water_Pump_Houses.Sept_1985_Insp_Revea…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000320/LER-1984-017, :on 841024,sonar Insp of Flood Protection Dike Revealed Degradation of Submerged Toe in Vicinity of River Water Pump Houses.Sept 1985 Insp Revealed Same Degradation. Baseline Degradation Criteria Changed

LER-1985-039, :on 850722,toxic Gas Isolation Sys Train B Actuated When Hydrocarbon Analyzer Malfunctioned.Control Room Emergency Air Cleanup Sys Actuated as Required.Toxic Gas Isolation Sys Reset
type: Subject
label: 05000361/LER-1985-039, :on 850722,toxic Gas Isolation Sys Train B Actuated When Hydrocarbon Analyzer Malfunctioned.Control Room Emergency Air Cleanup Sys Actuated as Required.Toxic Gas Isolation Sys Reset
page: https://kanterella.com/05000361/LER-2D1985-2D039-2C_-3Aon_850722-2Ctoxic_Gas_Isolation_Sys_Train_B_Actuated_When_Hydrocarbon_Analyzer_Malfunctioned.Control_Room_Emergency_Air_Cleanup_Sys_Actuated_as_R…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000361/LER-1985-039, :on 850722,toxic Gas Isolation Sys Train B Actuated When Hydrocarbon Analyzer Malfunctioned.Control Room Emergency Air Cleanup Sys Actuated as Required.Toxic Gas Isolation Sys Reset

LER-1985-020-05, :on 850925,no Particulate Sample for Reactor Bldg Ventilation Sys Collected for Wk.Caused by Failure to Replace Screen in Filter Holder After Last Sample.Signs to Be Posted in Future
type: Subject
label: 05000249/LER-1985-020-05, :on 850925,no Particulate Sample for Reactor Bldg Ventilation Sys Collected for Wk.Caused by Failure to Replace Screen in Filter Holder After Last Sample.Signs to Be Posted in Future
page: https://kanterella.com/05000249/LER-2D1985-2D020-2D05-2C_-3Aon_850925-2Cno_Particulate_Sample_for_Reactor_Bldg_Ventilation_Sys_Collected_for_Wk.Caused_by_Failure_to_Replace_Screen_in_Filter_Holder_Aft…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000249/LER-1985-020-05, :on 850925,no Particulate Sample for Reactor Bldg Ventilation Sys Collected for Wk.Caused by Failure to Replace Screen in Filter Holder After Last Sample.Signs to Be Posted in Future

LER-1985-076, :on 851109,emergency Diesel Generator 11 Auto Start Did Not Clear & Generator Would Not Shut Down During Dedicated Shutdown Sys Test.Caused by Misconfigured Contacts in Auxiliary Switch
type: Subject
label: 05000341/LER-1985-076, :on 851109,emergency Diesel Generator 11 Auto Start Did Not Clear & Generator Would Not Shut Down During Dedicated Shutdown Sys Test.Caused by Misconfigured Contacts in Auxiliary Switch
page: https://kanterella.com/05000341/LER-2D1985-2D076-2C_-3Aon_851109-2Cemergency_Diesel_Generator_11_Auto_Start_Did_Not_Clear_-26_Generator_Would_Not_Shut_Down_During_Dedicated_Shutdown_Sys_Test.Caused_by…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1985-076, :on 851109,emergency Diesel Generator 11 Auto Start Did Not Clear & Generator Would Not Shut Down During Dedicated Shutdown Sys Test.Caused by Misconfigured Contacts in Auxiliary Switch

LER-1985-037, :on 850620,smoke Detector in Control Bldg HVAC Chase Failed to Annunciate on Control Room Console During Routine Testing.Caused by Erroneous Zone Description Entry Onto Data Base.Controls Re Data Mod Underway
type: Subject
label: 05000416/LER-1985-037, :on 850620,smoke Detector in Control Bldg HVAC Chase Failed to Annunciate on Control Room Console During Routine Testing.Caused by Erroneous Zone Description Entry Onto Data Base.Controls Re Data Mod Underway
page: https://kanterella.com/05000416/LER-2D1985-2D037-2C_-3Aon_850620-2Csmoke_Detector_in_Control_Bldg_HVAC_Chase_Failed_to_Annunciate_on_Control_Room_Console_During_Routine_Testing.Caused_by_Erroneous_Zon…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000416/LER-1985-037, :on 850620,smoke Detector in Control Bldg HVAC Chase Failed to Annunciate on Control Room Console During Routine Testing.Caused by Erroneous Zone Description Entry Onto Data Base.Controls Re Data Mod Underway

LER-1985-038-01, :on 851110,ESF Actuation Occurred Due to Lower Containment Airborne Monitor Particulate Channel Train B High Alarm.Caused by Error in Inputing High Alarm Setpoint Exponent Value.Technician Counseled
type: Subject
label: 05000316/LER-1985-038-01, :on 851110,ESF Actuation Occurred Due to Lower Containment Airborne Monitor Particulate Channel Train B High Alarm.Caused by Error in Inputing High Alarm Setpoint Exponent Value.Technician Counseled
page: https://kanterella.com/05000316/LER-2D1985-2D038-2D01-2C_-3Aon_851110-2CESF_Actuation_Occurred_Due_to_Lower_Containment_Airborne_Monitor_Particulate_Channel_Train_B_High_Alarm.Caused_by_Error_in_Input…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000316/LER-1985-038-01, :on 851110,ESF Actuation Occurred Due to Lower Containment Airborne Monitor Particulate Channel Train B High Alarm.Caused by Error in Inputing High Alarm Setpoint Exponent Value.Technician Counseled

unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled
type: Subject
label: 05000315/LER-1985-054, :on 851026,w/unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled
page: https://kanterella.com/05000315/LER-2D1985-2D054-2C_-3Aon_851026-2Cw/unit_in_Mode_3-2CESF_Actuation_Signal_Received_from_Steam_Generator_11_hi-2Dhi_Level.Caused_by_Inadvertent_Overfill_of_Generator.Le…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1985-054, :on 851026,w/unit in Mode 3,ESF Actuation Signal Received from Steam Generator 11 hi-hi Level.Caused by Inadvertent Overfill of Generator.Level Returned to Normal.Operator Counseled

LER-1997-002-02, :on 970309,manual Scram Occurred Due to Loss of Forced Reactor Core Circulation at Power as Result of 13kv Feeder Breaker Auxiliary Switch Failure.Auxiliary Switch Assembly Was Cleaned & Lubricated
type: Subject
label: 05000278/LER-1997-002-02, :on 970309,manual Scram Occurred Due to Loss of Forced Reactor Core Circulation at Power as Result of 13kv Feeder Breaker Auxiliary Switch Failure.Auxiliary Switch Assembly Was Cleaned & Lubricated
page: https://kanterella.com/05000278/LER-2D1997-2D002-2D02-2C_-3Aon_970309-2Cmanual_Scram_Occurred_Due_to_Loss_of_Forced_Reactor_Core_Circulation_at_Power_as_Result_of_13kv_Feeder_Breaker_Auxiliary_Switch_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000278/LER-1997-002-02, :on 970309,manual Scram Occurred Due to Loss of Forced Reactor Core Circulation at Power as Result of 13kv Feeder Breaker Auxiliary Switch Failure.Auxiliary Switch Assembly Was Cleaned & Lubricated

ML20154B031
type: Subject
page: https://kanterella.com/ML20154B031
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20154B031

LER-1985-019, :on 851026,partial Reactor Scram Occurred Due to Momentary Short in CRD Gas Pressure Circuit.Caused by Worn Mechanical Seal Allowing More Seal Water to Flow Through than Normal.Seal Leakage Reduced
type: Subject
label: 05000409/LER-1985-019, :on 851026,partial Reactor Scram Occurred Due to Momentary Short in CRD Gas Pressure Circuit.Caused by Worn Mechanical Seal Allowing More Seal Water to Flow Through than Normal.Seal Leakage Reduced
page: https://kanterella.com/05000409/LER-2D1985-2D019-2C_-3Aon_851026-2Cpartial_Reactor_Scram_Occurred_Due_to_Momentary_Short_in_CRD_Gas_Pressure_Circuit.Caused_by_Worn_Mechanical_Seal_Allowing_More_Seal_W…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000409/LER-1985-019, :on 851026,partial Reactor Scram Occurred Due to Momentary Short in CRD Gas Pressure Circuit.Caused by Worn Mechanical Seal Allowing More Seal Water to Flow Through than Normal.Seal Leakage Reduced

LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised
type: Subject
label: 05000312/LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised
page: https://kanterella.com/05000312/LER-2D1984-2D016-2C_-3Aon_840425-2CRCS_Pump_Seal_Return_Line_Isolation_Valve_Exceeded_Tech_Spec_Stroke_Time_Limit.Caused_by_Weaknesses_in_Documentation_-26_Surveillance…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000312/LER-1984-016, :on 840425,RCS Pump Seal Return Line Isolation Valve Exceeded Tech Spec Stroke Time Limit.Caused by Weaknesses in Documentation & Surveillances of Equipment. Valve Restroked.Surveillance Procedure Revised

LER-1985-052, :on 851209,reactor Tripped Twice Due to Water Level in Steam Generators Reaching lo-lo Level Trip Setpoint.Caused by MSIV Fast Closure Due to Circuit Card Failure.Circuit Card Replaced
type: Subject
label: 05000483/LER-1985-052, :on 851209,reactor Tripped Twice Due to Water Level in Steam Generators Reaching lo-lo Level Trip Setpoint.Caused by MSIV Fast Closure Due to Circuit Card Failure.Circuit Card Replaced
page: https://kanterella.com/05000483/LER-2D1985-2D052-2C_-3Aon_851209-2Creactor_Tripped_Twice_Due_to_Water_Level_in_Steam_Generators_Reaching_lo-2Dlo_Level_Trip_Setpoint.Caused_by_MSIV_Fast_Closure_Due_to_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-052, :on 851209,reactor Tripped Twice Due to Water Level in Steam Generators Reaching lo-lo Level Trip Setpoint.Caused by MSIV Fast Closure Due to Circuit Card Failure.Circuit Card Replaced

LER-1985-020, :on 850810,surveillance Testing on Automatic Depressurization Sys Improperly Conducted.Caused by Personnel Error & Lack of Procedures Re Design Change 84-01. Procedures Revised & Personnel Counseled
type: Subject
label: 05000298/LER-1985-020, :on 850810,surveillance Testing on Automatic Depressurization Sys Improperly Conducted.Caused by Personnel Error & Lack of Procedures Re Design Change 84-01. Procedures Revised & Personnel Counseled
page: https://kanterella.com/05000298/LER-2D1985-2D020-2C_-3Aon_850810-2Csurveillance_Testing_on_Automatic_Depressurization_Sys_Improperly_Conducted.Caused_by_Personnel_Error_-26_Lack_of_Procedures_Re_Desig…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000298/LER-1985-020, :on 850810,surveillance Testing on Automatic Depressurization Sys Improperly Conducted.Caused by Personnel Error & Lack of Procedures Re Design Change 84-01. Procedures Revised & Personnel Counseled

05000362/LER-1984-038-01, :on 840922,power Reduction from 100% Power Initiated to Perform Scheduled Surveillances & Maint Items. Caused by Iodine Spiking.Primary Coolant Activity Monitored
type: Subject
page: https://kanterella.com/05000362/LER-2D1984-2D038-2D01-2C_-3Aon_840922-2Cpower_Reduction_from_100-_Power_Initiated_to_Perform_Scheduled_Surveillances_-26_Maint_Items._Caused_by_Iodine_Spiking.Primary_C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000362/LER-1984-038-01, :on 840922,power Reduction from 100% Power Initiated to Perform Scheduled Surveillances & Maint Items. Caused by Iodine Spiking.Primary Coolant Activity Monitored

Process Instrumentation Installed in Safety Injection Path.Similar Discrepancy Discovered on 850715 Re RHR Cooldown Flow Indication
type: Subject
label: 05000315/LER-1985-031, :on 850709,RHR Sys Local Flow Measurements Did Not Coincide W/Process Instrumentation Installed in Safety Injection Path.Similar Discrepancy Discovered on 850715 Re RHR Cooldown Flow Indication
page: https://kanterella.com/05000315/LER-2D1985-2D031-2C_-3Aon_850709-2CRHR_Sys_Local_Flow_Measurements_Did_Not_Coincide_W/Process_Instrumentation_Installed_in_Safety_Injection_Path.Similar_Discrepancy_Dis…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1985-031, :on 850709,RHR Sys Local Flow Measurements Did Not Coincide W/Process Instrumentation Installed in Safety Injection Path.Similar Discrepancy Discovered on 850715 Re RHR Cooldown Flow Indication

LER-1985-028-01, :on 850809 & 12 During line-by-line Review of Tech Specs & Implementing Procedures,Personnel Noted Three Surveillance Requirements for high-range Radiation Recorder Not Satisfied After Addition of Amends
type: Subject
label: 05000366/LER-1985-028-01, :on 850809 & 12 During line-by-line Review of Tech Specs & Implementing Procedures,Personnel Noted Three Surveillance Requirements for high-range Radiation Recorder Not Satisfied After Addition of Amends
page: https://kanterella.com/05000366/LER-2D1985-2D028-2D01-2C_-3Aon_850809_-26_12_During_line-2Dby-2Dline_Review_of_Tech_Specs_-26_Implementing_Procedures-2CPersonnel_Noted_Three_Surveillance_Requirements_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000366/LER-1985-028-01, :on 850809 & 12 During line-by-line Review of Tech Specs & Implementing Procedures,Personnel Noted Three Surveillance Requirements for high-range Radiation Recorder Not Satisfied After Addition of Amends

LER-1985-003, :on 850115-24,spurious Control Room Ventilation Isolation Signals Occurred.Caused by Incompatibility Between Software & Hardware in Microprocessing Unit for Radiation Monitor.Necessary Hardware Installed
type: Subject
label: 05000483/LER-1985-003, :on 850115-24,spurious Control Room Ventilation Isolation Signals Occurred.Caused by Incompatibility Between Software & Hardware in Microprocessing Unit for Radiation Monitor.Necessary Hardware Installed
page: https://kanterella.com/05000483/LER-2D1985-2D003-2C_-3Aon_850115-2D24-2Cspurious_Control_Room_Ventilation_Isolation_Signals_Occurred.Caused_by_Incompatibility_Between_Software_-26_Hardware_in_Micropro…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-003, :on 850115-24,spurious Control Room Ventilation Isolation Signals Occurred.Caused by Incompatibility Between Software & Hardware in Microprocessing Unit for Radiation Monitor.Necessary Hardware Installed

05000370/LER-1984-032-01, :on 841207,Westinghouse Notified Util of CRD Mechanism Fabrication Error.Caused by Loose Guide Screw. Drive Mechanisms Inspected & Repaired as Necessary During Outage
type: Subject
page: https://kanterella.com/05000370/LER-2D1984-2D032-2D01-2C_-3Aon_841207-2CWestinghouse_Notified_Util_of_CRD_Mechanism_Fabrication_Error.Caused_by_Loose_Guide_Screw._Drive_Mechanisms_Inspected_-26_Repair…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1984-032-01, :on 841207,Westinghouse Notified Util of CRD Mechanism Fabrication Error.Caused by Loose Guide Screw. Drive Mechanisms Inspected & Repaired as Necessary During Outage

LER-1985-034, :on 850718,trip Occurred as Result of Power Range High Negative Flux Rate Signal.Caused by Inadequate Cooling of Rod Drive Power Cabinet.Caution Tag Added to Handswitch Controlling Room Cooler
type: Subject
label: 05000483/LER-1985-034, :on 850718,trip Occurred as Result of Power Range High Negative Flux Rate Signal.Caused by Inadequate Cooling of Rod Drive Power Cabinet.Caution Tag Added to Handswitch Controlling Room Cooler
page: https://kanterella.com/05000483/LER-2D1985-2D034-2C_-3Aon_850718-2Ctrip_Occurred_as_Result_of_Power_Range_High_Negative_Flux_Rate_Signal.Caused_by_Inadequate_Cooling_of_Rod_Drive_Power_Cabinet.Caution…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-034, :on 850718,trip Occurred as Result of Power Range High Negative Flux Rate Signal.Caused by Inadequate Cooling of Rod Drive Power Cabinet.Caution Tag Added to Handswitch Controlling Room Cooler

LER-1985-002-01, :on 850719,while Restoring Train a to Svc, Inadvertent Actuation of Train B Safety Injection Occurred. Caused by Operator Inadvertently Moving Reset Block Switch Instead of Block Position
type: Subject
label: 05000275/LER-1985-002-01, :on 850719,while Restoring Train a to Svc, Inadvertent Actuation of Train B Safety Injection Occurred. Caused by Operator Inadvertently Moving Reset Block Switch Instead of Block Position
page: https://kanterella.com/05000275/LER-2D1985-2D002-2D01-2C_-3Aon_850719-2Cwhile_Restoring_Train_a_to_Svc-2C_Inadvertent_Actuation_of_Train_B_Safety_Injection_Occurred._Caused_by_Operator_Inadvertently_M…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000275/LER-1985-002-01, :on 850719,while Restoring Train a to Svc, Inadvertent Actuation of Train B Safety Injection Occurred. Caused by Operator Inadvertently Moving Reset Block Switch Instead of Block Position

LER-1985-019-02, :on 850712,main Generator Tripped When Both Channels of Generator X Phase Differential Current Protective Divices Actuated.Caused by Component Failure. Damage Repaired & Equipment Monitored
type: Subject
label: 05000370/LER-1985-019-02, :on 850712,main Generator Tripped When Both Channels of Generator X Phase Differential Current Protective Divices Actuated.Caused by Component Failure. Damage Repaired & Equipment Monitored
page: https://kanterella.com/05000370/LER-2D1985-2D019-2D02-2C_-3Aon_850712-2Cmain_Generator_Tripped_When_Both_Channels_of_Generator_X_Phase_Differential_Current_Protective_Divices_Actuated.Caused_by_Compon…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1985-019-02, :on 850712,main Generator Tripped When Both Channels of Generator X Phase Differential Current Protective Divices Actuated.Caused by Component Failure. Damage Repaired & Equipment Monitored

05000315/LER-1985-047, :on 850916,listed Equipment Not Calibr at Tech Spec Required Frequency.Caused by Not Including Instruments in Plant Nuclear Test Schedule.Calibr Completed & Added to Schedule
type: Subject
page: https://kanterella.com/05000315/LER-2D1985-2D047-2C_-3Aon_850916-2Clisted_Equipment_Not_Calibr_at_Tech_Spec_Required_Frequency.Caused_by_Not_Including_Instruments_in_Plant_Nuclear_Test_Schedule.Calibr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1985-047, :on 850916,listed Equipment Not Calibr at Tech Spec Required Frequency.Caused by Not Including Instruments in Plant Nuclear Test Schedule.Calibr Completed & Added to Schedule

LER-1985-030, :on 850705,deficiency Found in Testing Requirements for Primary Containment Isolation Valves 1-55 & 1-56.Caused by Tech Specs Not Being Revised.Status of Valves Changed to Normally Open
type: Subject
label: 05000259/LER-1985-030, :on 850705,deficiency Found in Testing Requirements for Primary Containment Isolation Valves 1-55 & 1-56.Caused by Tech Specs Not Being Revised.Status of Valves Changed to Normally Open
page: https://kanterella.com/05000259/LER-2D1985-2D030-2C_-3Aon_850705-2Cdeficiency_Found_in_Testing_Requirements_for_Primary_Containment_Isolation_Valves_1-2D55_-26_1-2D56.Caused_by_Tech_Specs_Not_Being_Re…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1985-030, :on 850705,deficiency Found in Testing Requirements for Primary Containment Isolation Valves 1-55 & 1-56.Caused by Tech Specs Not Being Revised.Status of Valves Changed to Normally Open

LER-1984-020, :on 841216,inadvertent Train a Safety Injection & Reactor Trip Occurred During Valve Reseating.Caused by Personnel Error Malfunctioning Safety Injection Handswitch. Switch Repaired
type: Subject
label: 05000328/LER-1984-020, :on 841216,inadvertent Train a Safety Injection & Reactor Trip Occurred During Valve Reseating.Caused by Personnel Error Malfunctioning Safety Injection Handswitch. Switch Repaired
page: https://kanterella.com/05000328/LER-2D1984-2D020-2C_-3Aon_841216-2Cinadvertent_Train_a_Safety_Injection_-26_Reactor_Trip_Occurred_During_Valve_Reseating.Caused_by_Personnel_Error_Malfunctioning_Safety…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1984-020, :on 841216,inadvertent Train a Safety Injection & Reactor Trip Occurred During Valve Reseating.Caused by Personnel Error Malfunctioning Safety Injection Handswitch. Switch Repaired

LER-1985-007-03, :on 850205,two ESF Actuations Occurred During Work on Reactor Protection & Nuclear Instrumentation Sys Channels.Caused by Procedures Allowing Simultaneous Sys Work.Procedures Revised
type: Subject
label: 05000369/LER-1985-007-03, :on 850205,two ESF Actuations Occurred During Work on Reactor Protection & Nuclear Instrumentation Sys Channels.Caused by Procedures Allowing Simultaneous Sys Work.Procedures Revised
page: https://kanterella.com/05000369/LER-2D1985-2D007-2D03-2C_-3Aon_850205-2Ctwo_ESF_Actuations_Occurred_During_Work_on_Reactor_Protection_-26_Nuclear_Instrumentation_Sys_Channels.Caused_by_Procedures_Allo…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1985-007-03, :on 850205,two ESF Actuations Occurred During Work on Reactor Protection & Nuclear Instrumentation Sys Channels.Caused by Procedures Allowing Simultaneous Sys Work.Procedures Revised

05000395/LER-1985-026, :on 850908,at 100% Power,Turbine Driven Emergency Feedwater Pump Indicator Read 250 Rpm.Caused by Seat Leakage Past Steam Supply Control Valve.Valve Repaired & Reset
type: Subject
page: https://kanterella.com/05000395/LER-2D1985-2D026-2C_-3Aon_850908-2Cat_100-_Power-2CTurbine_Driven_Emergency_Feedwater_Pump_Indicator_Read_250_Rpm.Caused_by_Seat_Leakage_Past_Steam_Supply_Control_Valve…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000395/LER-1985-026, :on 850908,at 100% Power,Turbine Driven Emergency Feedwater Pump Indicator Read 250 Rpm.Caused by Seat Leakage Past Steam Supply Control Valve.Valve Repaired & Reset

LER-1985-042, :on 850705 & 11,ESF Actuation Occurred Resulting in Feedwater Isolation,Main Turbine Trip & Main Feedwater Pump Trips.Caused by High Water Levels in Steam Generator & Overlap Between Setpoints
type: Subject
label: 05000482/LER-1985-042, :on 850705 & 11,ESF Actuation Occurred Resulting in Feedwater Isolation,Main Turbine Trip & Main Feedwater Pump Trips.Caused by High Water Levels in Steam Generator & Overlap Between Setpoints
page: https://kanterella.com/05000482/LER-2D1985-2D042-2C_-3Aon_850705_-26_11-2CESF_Actuation_Occurred_Resulting_in_Feedwater_Isolation-2CMain_Turbine_Trip_-26_Main_Feedwater_Pump_Trips.Caused_by_High_Water…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000482/LER-1985-042, :on 850705 & 11,ESF Actuation Occurred Resulting in Feedwater Isolation,Main Turbine Trip & Main Feedwater Pump Trips.Caused by High Water Levels in Steam Generator & Overlap Between Setpoints

05000315/LER-1985-019, :on 850420,ice Inventory within Ice Condenser Determined to Be Below Tech Spec Limits.Cause Unknown.Ice Weight of Deficient Rows Increased by Ice Replenishment Program
type: Subject
page: https://kanterella.com/05000315/LER-2D1985-2D019-2C_-3Aon_850420-2Cice_Inventory_within_Ice_Condenser_Determined_to_Be_Below_Tech_Spec_Limits.Cause_Unknown.Ice_Weight_of_Deficient_Rows_Increased_by_Ic…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1985-019, :on 850420,ice Inventory within Ice Condenser Determined to Be Below Tech Spec Limits.Cause Unknown.Ice Weight of Deficient Rows Increased by Ice Replenishment Program

LER-1985-016, :on 850613,automatic Start of Emergency Diesel Generator a Occurred.Caused by Personnel Error.Generator Stopped & Returned to Normal Standby Condition,Per Operating Procedure 0-OP-023
type: Subject
label: 05000250/LER-1985-016, :on 850613,automatic Start of Emergency Diesel Generator a Occurred.Caused by Personnel Error.Generator Stopped & Returned to Normal Standby Condition,Per Operating Procedure 0-OP-023
page: https://kanterella.com/05000250/LER-2D1985-2D016-2C_-3Aon_850613-2Cautomatic_Start_of_Emergency_Diesel_Generator_a_Occurred.Caused_by_Personnel_Error.Generator_Stopped_-26_Returned_to_Normal_Standby_C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1985-016, :on 850613,automatic Start of Emergency Diesel Generator a Occurred.Caused by Personnel Error.Generator Stopped & Returned to Normal Standby Condition,Per Operating Procedure 0-OP-023

Load Tap Changers Fixed at Neutral Position Due to Internal Transformer Problem,Requiring Operator Action to Maintain Bus Voltages
type: Subject
label: 05000339/LER-1985-007-03, :on 850701,reserve Station Svc Transformer B in Manual Operation W/Load Tap Changers Fixed at Neutral Position Due to Internal Transformer Problem,Requiring Operator Action to Maintain Bus Voltages
page: https://kanterella.com/05000339/LER-2D1985-2D007-2D03-2C_-3Aon_850701-2Creserve_Station_Svc_Transformer_B_in_Manual_Operation_W/Load_Tap_Changers_Fixed_at_Neutral_Position_Due_to_Internal_Transformer_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000339/LER-1985-007-03, :on 850701,reserve Station Svc Transformer B in Manual Operation W/Load Tap Changers Fixed at Neutral Position Due to Internal Transformer Problem,Requiring Operator Action to Maintain Bus Voltages

LER-1985-035-01, :on 850829,control Power for Diesel Generator 2B-B Lost for Several Seconds.Caused by Personnel Error Resulting in Loose Connector from Test Rig to Breaker Lugs. Suction Valves Returned to Normal
type: Subject
label: 05000327/LER-1985-035-01, :on 850829,control Power for Diesel Generator 2B-B Lost for Several Seconds.Caused by Personnel Error Resulting in Loose Connector from Test Rig to Breaker Lugs. Suction Valves Returned to Normal
page: https://kanterella.com/05000327/LER-2D1985-2D035-2D01-2C_-3Aon_850829-2Ccontrol_Power_for_Diesel_Generator_2B-2DB_Lost_for_Several_Seconds.Caused_by_Personnel_Error_Resulting_in_Loose_Connector_from_T…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1985-035-01, :on 850829,control Power for Diesel Generator 2B-B Lost for Several Seconds.Caused by Personnel Error Resulting in Loose Connector from Test Rig to Breaker Lugs. Suction Valves Returned to Normal

LER-1985-029-02, :on 850610,reactor Level Switches 2B21-N037AA & AB Found to Be Piped in Reverse of Sys Design.Caused by Field Change on Design Drawings Not Transferred to Contractor Installation Drawings
type: Subject
label: 05000374/LER-1985-029-02, :on 850610,reactor Level Switches 2B21-N037AA & AB Found to Be Piped in Reverse of Sys Design.Caused by Field Change on Design Drawings Not Transferred to Contractor Installation Drawings
page: https://kanterella.com/05000374/LER-2D1985-2D029-2D02-2C_-3Aon_850610-2Creactor_Level_Switches_2B21-2DN037AA_-26_AB_Found_to_Be_Piped_in_Reverse_of_Sys_Design.Caused_by_Field_Change_on_Design_Drawings…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000374/LER-1985-029-02, :on 850610,reactor Level Switches 2B21-N037AA & AB Found to Be Piped in Reverse of Sys Design.Caused by Field Change on Design Drawings Not Transferred to Contractor Installation Drawings

05000483/LER-1985-026, :on 850607,reactor Trip Occurred Due to High Negative Flux Rate.Caused by Thyristor Bank Insulator Failure.Thyristor Bank & Power Supplies Replaced
type: Subject
page: https://kanterella.com/05000483/LER-2D1985-2D026-2C_-3Aon_850607-2Creactor_Trip_Occurred_Due_to_High_Negative_Flux_Rate.Caused_by_Thyristor_Bank_Insulator_Failure.Thyristor_Bank_-26_Power_Supplies_Rep…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-026, :on 850607,reactor Trip Occurred Due to High Negative Flux Rate.Caused by Thyristor Bank Insulator Failure.Thyristor Bank & Power Supplies Replaced

LER-1985-023-01, :on 850616,reactor Water Conductivity Monitoring Inoperable Due to Conductivity Cell.Caused by Broken Gauge Which Had Been Removed on 850614.Reactor Water Conductivity Cell Reestablished
type: Subject
label: 05000321/LER-1985-023-01, :on 850616,reactor Water Conductivity Monitoring Inoperable Due to Conductivity Cell.Caused by Broken Gauge Which Had Been Removed on 850614.Reactor Water Conductivity Cell Reestablished
page: https://kanterella.com/05000321/LER-2D1985-2D023-2D01-2C_-3Aon_850616-2Creactor_Water_Conductivity_Monitoring_Inoperable_Due_to_Conductivity_Cell.Caused_by_Broken_Gauge_Which_Had_Been_Removed_on_85061…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1985-023-01, :on 850616,reactor Water Conductivity Monitoring Inoperable Due to Conductivity Cell.Caused by Broken Gauge Which Had Been Removed on 850614.Reactor Water Conductivity Cell Reestablished

ML20151X468
type: Subject
page: https://kanterella.com/ML20151X468
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20151X468

LER-1985-016-02, :on 850528,QC Personnel Reported Discovery of Violation of Safety Train Cable Separation Criteria.Caused by Inadequate Controls by Const Dept to Ensure That Electray Reinstalled Following Removal
type: Subject
label: 05000370/LER-1985-016-02, :on 850528,QC Personnel Reported Discovery of Violation of Safety Train Cable Separation Criteria.Caused by Inadequate Controls by Const Dept to Ensure That Electray Reinstalled Following Removal
page: https://kanterella.com/05000370/LER-2D1985-2D016-2D02-2C_-3Aon_850528-2CQC_Personnel_Reported_Discovery_of_Violation_of_Safety_Train_Cable_Separation_Criteria.Caused_by_Inadequate_Controls_by_Const_De…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1985-016-02, :on 850528,QC Personnel Reported Discovery of Violation of Safety Train Cable Separation Criteria.Caused by Inadequate Controls by Const Dept to Ensure That Electray Reinstalled Following Removal

LER-1985-005, :on 850416,reactor Scram Occurred Due to APRM High Flux Level.Caused by Partial Closing of Turbine Control Valves Due to Disturbance in Turbine Control Sys.Work Requests Issued to Troubleshoot Sys
type: Subject
label: 05000220/LER-1985-005, :on 850416,reactor Scram Occurred Due to APRM High Flux Level.Caused by Partial Closing of Turbine Control Valves Due to Disturbance in Turbine Control Sys.Work Requests Issued to Troubleshoot Sys
page: https://kanterella.com/05000220/LER-2D1985-2D005-2C_-3Aon_850416-2Creactor_Scram_Occurred_Due_to_APRM_High_Flux_Level.Caused_by_Partial_Closing_of_Turbine_Control_Valves_Due_to_Disturbance_in_Turbine_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000220/LER-1985-005, :on 850416,reactor Scram Occurred Due to APRM High Flux Level.Caused by Partial Closing of Turbine Control Valves Due to Disturbance in Turbine Control Sys.Work Requests Issued to Troubleshoot Sys

Reworked
type: Subject
label: 05000341/LER-1992-007, :on 921028,two MSIVs Exceeded Administrative Allowable Leakage Rate During Periodic Leak Rate Testing. Caused by Normal Degradation of Valve Components &/Or Contaminants.Valves Repaired/Reworked
page: https://kanterella.com/05000341/LER-2D1992-2D007-2C_-3Aon_921028-2Ctwo_MSIVs_Exceeded_Administrative_Allowable_Leakage_Rate_During_Periodic_Leak_Rate_Testing._Caused_by_Normal_Degradation_of_Valve_Com…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1992-007, :on 921028,two MSIVs Exceeded Administrative Allowable Leakage Rate During Periodic Leak Rate Testing. Caused by Normal Degradation of Valve Components &/Or Contaminants.Valves Repaired/Reworked

ML20134F576
type: Subject
page: https://kanterella.com/ML20134F576
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20134F576

LER-1985-006-02, :on 850516,two Control Element Assemblies in Subgroup 12 Dropped.Caused by Personnel Error in Pulling Wrong Circuit Card During Maint.Personnel Informed of Error & Greater Caution Will Be Exercised in Future
type: Subject
label: 05000389/LER-1985-006-02, :on 850516,two Control Element Assemblies in Subgroup 12 Dropped.Caused by Personnel Error in Pulling Wrong Circuit Card During Maint.Personnel Informed of Error & Greater Caution Will Be Exercised in Future
page: https://kanterella.com/05000389/LER-2D1985-2D006-2D02-2C_-3Aon_850516-2Ctwo_Control_Element_Assemblies_in_Subgroup_12_Dropped.Caused_by_Personnel_Error_in_Pulling_Wrong_Circuit_Card_During_Maint.Perso…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000389/LER-1985-006-02, :on 850516,two Control Element Assemblies in Subgroup 12 Dropped.Caused by Personnel Error in Pulling Wrong Circuit Card During Maint.Personnel Informed of Error & Greater Caution Will Be Exercised in Future

LER-1985-012, :on 850517,reactor Partial Scram Occurred Due to Low Gas or Oil Signal from CRD Mechanism.Caused by Decrease in Accumulator Pressure on CRD Mechanism 8 or 21 Until Low Pressure Setpoint Reached
type: Subject
label: 05000409/LER-1985-012, :on 850517,reactor Partial Scram Occurred Due to Low Gas or Oil Signal from CRD Mechanism.Caused by Decrease in Accumulator Pressure on CRD Mechanism 8 or 21 Until Low Pressure Setpoint Reached
page: https://kanterella.com/05000409/LER-2D1985-2D012-2C_-3Aon_850517-2Creactor_Partial_Scram_Occurred_Due_to_Low_Gas_or_Oil_Signal_from_CRD_Mechanism.Caused_by_Decrease_in_Accumulator_Pressure_on_CRD_Mech…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000409/LER-1985-012, :on 850517,reactor Partial Scram Occurred Due to Low Gas or Oil Signal from CRD Mechanism.Caused by Decrease in Accumulator Pressure on CRD Mechanism 8 or 21 Until Low Pressure Setpoint Reached

ML20129G584
type: Subject
page: https://kanterella.com/ML20129G584
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20129G584

ML20126J181
type: Subject
page: https://kanterella.com/ML20126J181
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20126J181

LER-1992-012-01, :on 920917,DG D1 Experienced Unplanned Automatic Start During Performance of Manual Air Roll of Engine.Caused by Failure to Use Written Procedure.Operator Counseled & Instructed to Have Procedures in Hand
type: Subject
label: 05000282/LER-1992-012-01, :on 920917,DG D1 Experienced Unplanned Automatic Start During Performance of Manual Air Roll of Engine.Caused by Failure to Use Written Procedure.Operator Counseled & Instructed to Have Procedures in Hand
page: https://kanterella.com/05000282/LER-2D1992-2D012-2D01-2C_-3Aon_920917-2CDG_D1_Experienced_Unplanned_Automatic_Start_During_Performance_of_Manual_Air_Roll_of_Engine.Caused_by_Failure_to_Use_Written_Pro…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000282/LER-1992-012-01, :on 920917,DG D1 Experienced Unplanned Automatic Start During Performance of Manual Air Roll of Engine.Caused by Failure to Use Written Procedure.Operator Counseled & Instructed to Have Procedures in Hand

LER-1985-011, :on 850407,containment Purge Begun Per Approved Procedure Which Established More than on Purge Supply & Exhaust Path.Procedure Not Allowed Per Tech Spec 3.6.1.7. Procedures Changed
type: Subject
label: 05000315/LER-1985-011, :on 850407,containment Purge Begun Per Approved Procedure Which Established More than on Purge Supply & Exhaust Path.Procedure Not Allowed Per Tech Spec 3.6.1.7. Procedures Changed
page: https://kanterella.com/05000315/LER-2D1985-2D011-2C_-3Aon_850407-2Ccontainment_Purge_Begun_Per_Approved_Procedure_Which_Established_More_than_on_Purge_Supply_-26_Exhaust_Path.Procedure_Not_Allowed_Per…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1985-011, :on 850407,containment Purge Begun Per Approved Procedure Which Established More than on Purge Supply & Exhaust Path.Procedure Not Allowed Per Tech Spec 3.6.1.7. Procedures Changed

LER-1985-011-01, :on 850411,control Circuit Fuse Blew,Causing Partial Initiation of Primary Containment Isolation Sys. Caused by Failure of Relay 16AK72 Coil.Coil Replaced.New Fuse Installed.Recurrence Control Not Required
type: Subject
label: 05000259/LER-1985-011-01, :on 850411,control Circuit Fuse Blew,Causing Partial Initiation of Primary Containment Isolation Sys. Caused by Failure of Relay 16AK72 Coil.Coil Replaced.New Fuse Installed.Recurrence Control Not Required
page: https://kanterella.com/05000259/LER-2D1985-2D011-2D01-2C_-3Aon_850411-2Ccontrol_Circuit_Fuse_Blew-2CCausing_Partial_Initiation_of_Primary_Containment_Isolation_Sys._Caused_by_Failure_of_Relay_16AK72_C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000259/LER-1985-011-01, :on 850411,control Circuit Fuse Blew,Causing Partial Initiation of Primary Containment Isolation Sys. Caused by Failure of Relay 16AK72 Coil.Coil Replaced.New Fuse Installed.Recurrence Control Not Required

05000336/LER-1996-021-01, :on 960227,snubber Failure in Pressurizer Spray Line Occurred.Caused by Corrosion.Replaced Snubber Serial 12883 W/Identical Model PSA-1 Snubber
type: Subject
page: https://kanterella.com/05000336/LER-2D1996-2D021-2D01-2C_-3Aon_960227-2Csnubber_Failure_in_Pressurizer_Spray_Line_Occurred.Caused_by_Corrosion.Replaced_Snubber_Serial_12883_W/Identical_Model_PSA-2D1_S…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000336/LER-1996-021-01, :on 960227,snubber Failure in Pressurizer Spray Line Occurred.Caused by Corrosion.Replaced Snubber Serial 12883 W/Identical Model PSA-1 Snubber

LER-1985-005, :on 850401,retest of Control Switch Caused Loss of Normal Power Signal to Be Generated to 4.16 Kv Emergency Bus 24D.Caused by Personnel Error.Personnel Instructed to Use Increased Caution in Researching Circuits
type: Subject
label: 05000336/LER-1985-005, :on 850401,retest of Control Switch Caused Loss of Normal Power Signal to Be Generated to 4.16 Kv Emergency Bus 24D.Caused by Personnel Error.Personnel Instructed to Use Increased Caution in Researching Circuits
page: https://kanterella.com/05000336/LER-2D1985-2D005-2C_-3Aon_850401-2Cretest_of_Control_Switch_Caused_Loss_of_Normal_Power_Signal_to_Be_Generated_to_4.16_Kv_Emergency_Bus_24D.Caused_by_Personnel_Error.Pe…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000336/LER-1985-005, :on 850401,retest of Control Switch Caused Loss of Normal Power Signal to Be Generated to 4.16 Kv Emergency Bus 24D.Caused by Personnel Error.Personnel Instructed to Use Increased Caution in Researching Circuits

LER-1985-018, :on 850329,diesel Generator B Inadvertently Started During Surveillance Testing of Load Shedder & Emergency Load Sequencer.Caused by Technician Error. Technician Counseled & Cabinets Labeled
type: Subject
label: 05000483/LER-1985-018, :on 850329,diesel Generator B Inadvertently Started During Surveillance Testing of Load Shedder & Emergency Load Sequencer.Caused by Technician Error. Technician Counseled & Cabinets Labeled
page: https://kanterella.com/05000483/LER-2D1985-2D018-2C_-3Aon_850329-2Cdiesel_Generator_B_Inadvertently_Started_During_Surveillance_Testing_of_Load_Shedder_-26_Emergency_Load_Sequencer.Caused_by_Technicia…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-018, :on 850329,diesel Generator B Inadvertently Started During Surveillance Testing of Load Shedder & Emergency Load Sequencer.Caused by Technician Error. Technician Counseled & Cabinets Labeled

LER-1985-013, :on 850327,standby Liquid Control Pump a Failed 92-day Flow Verification Surveillance Test.Caused by Faulty Suction & Discharge Valves Internal to Positive Displacement Pump.Repairs Completed
type: Subject
label: 05000388/LER-1985-013, :on 850327,standby Liquid Control Pump a Failed 92-day Flow Verification Surveillance Test.Caused by Faulty Suction & Discharge Valves Internal to Positive Displacement Pump.Repairs Completed
page: https://kanterella.com/05000388/LER-2D1985-2D013-2C_-3Aon_850327-2Cstandby_Liquid_Control_Pump_a_Failed_92-2Dday_Flow_Verification_Surveillance_Test.Caused_by_Faulty_Suction_-26_Discharge_Valves_Inter…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000388/LER-1985-013, :on 850327,standby Liquid Control Pump a Failed 92-day Flow Verification Surveillance Test.Caused by Faulty Suction & Discharge Valves Internal to Positive Displacement Pump.Repairs Completed

05000254/LER-1985-014-03, :on 850403,fuel Pool Radiation Monitor 1A Spiked High.Caused by Electrical Noise Interference.Monitor Reset
type: Subject
page: https://kanterella.com/05000254/LER-2D1985-2D014-2D03-2C_-3Aon_850403-2Cfuel_Pool_Radiation_Monitor_1A_Spiked_High.Caused_by_Electrical_Noise_Interference.Monitor_Reset
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000254/LER-1985-014-03, :on 850403,fuel Pool Radiation Monitor 1A Spiked High.Caused by Electrical Noise Interference.Monitor Reset

05000395/LER-1985-005, :on 850317,reactor Trip Occurred from 100% Power Due to lo-lo Level in Steam Generator A.Caused by Burned Contact in MSIV Test Switch.Msiv Switch Replaced & All MSIVs Tested
type: Subject
page: https://kanterella.com/05000395/LER-2D1985-2D005-2C_-3Aon_850317-2Creactor_Trip_Occurred_from_100-_Power_Due_to_lo-2Dlo_Level_in_Steam_Generator_A.Caused_by_Burned_Contact_in_MSIV_Test_Switch.Msiv_Swi…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000395/LER-1985-005, :on 850317,reactor Trip Occurred from 100% Power Due to lo-lo Level in Steam Generator A.Caused by Burned Contact in MSIV Test Switch.Msiv Switch Replaced & All MSIVs Tested

Reg Guide 1.108 Requirements Re Diesel Generator Testing Identified.Caused by Test Frequency Based on Per Diesel Generator Unit Basis. Procedure Revs Initiated
type: Subject
label: 05000395/LER-1985-004, :on 850322,noncompliance W/Reg Guide 1.108 Requirements Re Diesel Generator Testing Identified.Caused by Test Frequency Based on Per Diesel Generator Unit Basis. Procedure Revs Initiated
page: https://kanterella.com/05000395/LER-2D1985-2D004-2C_-3Aon_850322-2Cnoncompliance_W/Reg_Guide_1.108_Requirements_Re_Diesel_Generator_Testing_Identified.Caused_by_Test_Frequency_Based_on_Per_Diesel_Gene…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000395/LER-1985-004, :on 850322,noncompliance W/Reg Guide 1.108 Requirements Re Diesel Generator Testing Identified.Caused by Test Frequency Based on Per Diesel Generator Unit Basis. Procedure Revs Initiated

ML20116D542
type: Subject
page: https://kanterella.com/ML20116D542
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20116D542

05000483/LER-1984-028, :on 840813,inadvertent Safety Injection Occurred.Caused by Failed Redundant Pressure Loop Going Undetected Due to Failed Lamp on Partial Trip Status Panel. Lamp Replaced
type: Subject
page: https://kanterella.com/05000483/LER-2D1984-2D028-2C_-3Aon_840813-2Cinadvertent_Safety_Injection_Occurred.Caused_by_Failed_Redundant_Pressure_Loop_Going_Undetected_Due_to_Failed_Lamp_on_Partial_Trip_St…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1984-028, :on 840813,inadvertent Safety Injection Occurred.Caused by Failed Redundant Pressure Loop Going Undetected Due to Failed Lamp on Partial Trip Status Panel. Lamp Replaced

05000366/LER-1984-037, :on 841218,airlock Leaked in Excess of Tech Spec Limits.Caused by Loose Packing Follower on Inner Door Shaft Seal.Seal Repaired
type: Subject
page: https://kanterella.com/05000366/LER-2D1984-2D037-2C_-3Aon_841218-2Cairlock_Leaked_in_Excess_of_Tech_Spec_Limits.Caused_by_Loose_Packing_Follower_on_Inner_Door_Shaft_Seal.Seal_Repaired
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000366/LER-1984-037, :on 841218,airlock Leaked in Excess of Tech Spec Limits.Caused by Loose Packing Follower on Inner Door Shaft Seal.Seal Repaired

05000250/LER-1984-034, :on 841213,containment Isolation Valve CV-3-204 Remained Open.Caused by Malfunction of Solenoid Valve.Air Supply to Valve Secured.Solenoid Valve Removed,Tested & Replaced
type: Subject
page: https://kanterella.com/05000250/LER-2D1984-2D034-2C_-3Aon_841213-2Ccontainment_Isolation_Valve_CV-2D3-2D204_Remained_Open.Caused_by_Malfunction_of_Solenoid_Valve.Air_Supply_to_Valve_Secured.Solenoid_V…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1984-034, :on 841213,containment Isolation Valve CV-3-204 Remained Open.Caused by Malfunction of Solenoid Valve.Air Supply to Valve Secured.Solenoid Valve Removed,Tested & Replaced

LER-1985-011, :on 850222,reactor Manually Tripped & Emergency Diesel Generator B Started & Loaded When Startup Transformer Lost.Caused by Interlock Between Transformer & Deluge Sys Due to Water Leakage & Power Loss to Rods
type: Subject
label: 05000483/LER-1985-011, :on 850222,reactor Manually Tripped & Emergency Diesel Generator B Started & Loaded When Startup Transformer Lost.Caused by Interlock Between Transformer & Deluge Sys Due to Water Leakage & Power Loss to Rods
page: https://kanterella.com/05000483/LER-2D1985-2D011-2C_-3Aon_850222-2Creactor_Manually_Tripped_-26_Emergency_Diesel_Generator_B_Started_-26_Loaded_When_Startup_Transformer_Lost.Caused_by_Interlock_Betwee…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-011, :on 850222,reactor Manually Tripped & Emergency Diesel Generator B Started & Loaded When Startup Transformer Lost.Caused by Interlock Between Transformer & Deluge Sys Due to Water Leakage & Power Loss to Rods

LER-1984-029-02, :on 841206,Westinghouse Notified Util of Insp Results Re CRD Mechanism Design.During 841215 Insp of All Unit 1 Drive rods,14 Unacceptable Drive Rods Found.Rods Replaced & Returned to Westinghouse
type: Subject
label: 05000413/LER-1984-029-02, :on 841206,Westinghouse Notified Util of Insp Results Re CRD Mechanism Design.During 841215 Insp of All Unit 1 Drive rods,14 Unacceptable Drive Rods Found.Rods Replaced & Returned to Westinghouse
page: https://kanterella.com/05000413/LER-2D1984-2D029-2D02-2C_-3Aon_841206-2CWestinghouse_Notified_Util_of_Insp_Results_Re_CRD_Mechanism_Design.During_841215_Insp_of_All_Unit_1_Drive_rods-2C14_Unacceptable…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1984-029-02, :on 841206,Westinghouse Notified Util of Insp Results Re CRD Mechanism Design.During 841215 Insp of All Unit 1 Drive rods,14 Unacceptable Drive Rods Found.Rods Replaced & Returned to Westinghouse

LER-1985-006-01, :on 850204,8-inch by 16-inch Opening Found in Wall in Quadrant 1 of Reactor Cable Tunnel,Constituting Inoperable Fire Barrier.Opening Believed to Have Existed Since Initial Plant Const.Opening Repaired
type: Subject
label: 05000316/LER-1985-006-01, :on 850204,8-inch by 16-inch Opening Found in Wall in Quadrant 1 of Reactor Cable Tunnel,Constituting Inoperable Fire Barrier.Opening Believed to Have Existed Since Initial Plant Const.Opening Repaired
page: https://kanterella.com/05000316/LER-2D1985-2D006-2D01-2C_-3Aon_850204-2C8-2Dinch_by_16-2Dinch_Opening_Found_in_Wall_in_Quadrant_1_of_Reactor_Cable_Tunnel-2CConstituting_Inoperable_Fire_Barrier.Opening…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000316/LER-1985-006-01, :on 850204,8-inch by 16-inch Opening Found in Wall in Quadrant 1 of Reactor Cable Tunnel,Constituting Inoperable Fire Barrier.Opening Believed to Have Existed Since Initial Plant Const.Opening Repaired

05000315/LER-1984-030-01, :on 841129,hydrogen Sampling Not Performed Per Tech Specs.Caused by Repairs Taking Place at Time Sampling Was to Be Performed.Shorter Sampling Intervals Established
type: Subject
page: https://kanterella.com/05000315/LER-2D1984-2D030-2D01-2C_-3Aon_841129-2Chydrogen_Sampling_Not_Performed_Per_Tech_Specs.Caused_by_Repairs_Taking_Place_at_Time_Sampling_Was_to_Be_Performed.Shorter_Sampl…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1984-030-01, :on 841129,hydrogen Sampling Not Performed Per Tech Specs.Caused by Repairs Taking Place at Time Sampling Was to Be Performed.Shorter Sampling Intervals Established

LER-1985-007, :on 850129,RHR Sys Shutdown Cooling Suction Valve Closed Unexpectedly.Cause Not Stated.Pressure Switch Checked & Shutdown Cooling Established.Switch May Be Replaced Pending Evaluation
type: Subject
label: 05000388/LER-1985-007, :on 850129,RHR Sys Shutdown Cooling Suction Valve Closed Unexpectedly.Cause Not Stated.Pressure Switch Checked & Shutdown Cooling Established.Switch May Be Replaced Pending Evaluation
page: https://kanterella.com/05000388/LER-2D1985-2D007-2C_-3Aon_850129-2CRHR_Sys_Shutdown_Cooling_Suction_Valve_Closed_Unexpectedly.Cause_Not_Stated.Pressure_Switch_Checked_-26_Shutdown_Cooling_Established.…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000388/LER-1985-007, :on 850129,RHR Sys Shutdown Cooling Suction Valve Closed Unexpectedly.Cause Not Stated.Pressure Switch Checked & Shutdown Cooling Established.Switch May Be Replaced Pending Evaluation

LER-1985-010, :on 850201,containment Ventilation Isolation Occurred on Train B Valves to Upper & Lower Containment Radiation Monitors RM-90-106 & 112.Caused by Failure of Power Supply.Power Supply Replaced
type: Subject
label: 05000327/LER-1985-010, :on 850201,containment Ventilation Isolation Occurred on Train B Valves to Upper & Lower Containment Radiation Monitors RM-90-106 & 112.Caused by Failure of Power Supply.Power Supply Replaced
page: https://kanterella.com/05000327/LER-2D1985-2D010-2C_-3Aon_850201-2Ccontainment_Ventilation_Isolation_Occurred_on_Train_B_Valves_to_Upper_-26_Lower_Containment_Radiation_Monitors_RM-2D90-2D106_-26_112.…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1985-010, :on 850201,containment Ventilation Isolation Occurred on Train B Valves to Upper & Lower Containment Radiation Monitors RM-90-106 & 112.Caused by Failure of Power Supply.Power Supply Replaced

05000327/LER-1985-007, :on 850131,while Performing Surveillance Instruction 166.21,Train B Emergency Gas Treatment Sys Room Cooler Would Not Start.Caused by Blown Control Fuse.Fuse Replaced
type: Subject
page: https://kanterella.com/05000327/LER-2D1985-2D007-2C_-3Aon_850131-2Cwhile_Performing_Surveillance_Instruction_166.21-2CTrain_B_Emergency_Gas_Treatment_Sys_Room_Cooler_Would_Not_Start.Caused_by_Blown_Co…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1985-007, :on 850131,while Performing Surveillance Instruction 166.21,Train B Emergency Gas Treatment Sys Room Cooler Would Not Start.Caused by Blown Control Fuse.Fuse Replaced

LER-1985-005, :on 850119,following Reactor Scram Due to Turbine High Vibration,Suppression Chamber Vacuum Breaker Surveillance Test Completed After Tech Spec Time Limit. Caused by Cognitive Error
type: Subject
label: 05000388/LER-1985-005, :on 850119,following Reactor Scram Due to Turbine High Vibration,Suppression Chamber Vacuum Breaker Surveillance Test Completed After Tech Spec Time Limit. Caused by Cognitive Error
page: https://kanterella.com/05000388/LER-2D1985-2D005-2C_-3Aon_850119-2Cfollowing_Reactor_Scram_Due_to_Turbine_High_Vibration-2CSuppression_Chamber_Vacuum_Breaker_Surveillance_Test_Completed_After_Tech_Spe…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000388/LER-1985-005, :on 850119,following Reactor Scram Due to Turbine High Vibration,Suppression Chamber Vacuum Breaker Surveillance Test Completed After Tech Spec Time Limit. Caused by Cognitive Error

LER-1984-013-03, :on 841122,HPCI Inoperable When Outboard Steam Supply Isolation Valve Failed to Open.Caused by Motor Pinion Gear to Isolation Valve Being Installed Backwards. Gears Correctly Repositioned
type: Subject
label: 05000296/LER-1984-013-03, :on 841122,HPCI Inoperable When Outboard Steam Supply Isolation Valve Failed to Open.Caused by Motor Pinion Gear to Isolation Valve Being Installed Backwards. Gears Correctly Repositioned
page: https://kanterella.com/05000296/LER-2D1984-2D013-2D03-2C_-3Aon_841122-2CHPCI_Inoperable_When_Outboard_Steam_Supply_Isolation_Valve_Failed_to_Open.Caused_by_Motor_Pinion_Gear_to_Isolation_Valve_Being_I…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000296/LER-1984-013-03, :on 841122,HPCI Inoperable When Outboard Steam Supply Isolation Valve Failed to Open.Caused by Motor Pinion Gear to Isolation Valve Being Installed Backwards. Gears Correctly Repositioned

05000389/LER-1984-009-03, :on 841104,during Scheduled Refueling Outage, Containment Isolation Signal Inadvertently Actuated
type: Subject
page: https://kanterella.com/05000389/LER-2D1984-2D009-2D03-2C_-3Aon_841104-2Cduring_Scheduled_Refueling_Outage-2C_Containment_Isolation_Signal_Inadvertently_Actuated
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000389/LER-1984-009-03, :on 841104,during Scheduled Refueling Outage, Containment Isolation Signal Inadvertently Actuated

05000325/LER-1985-013, :on 850307 & 22,control Bldg HVAC Sys Manually Isolated Due to Receipt of High Chlorine Alarms at Chlorination Sys Storage Location.Cause Not Determined
type: Subject
page: https://kanterella.com/05000325/LER-2D1985-2D013-2C_-3Aon_850307_-26_22-2Ccontrol_Bldg_HVAC_Sys_Manually_Isolated_Due_to_Receipt_of_High_Chlorine_Alarms_at_Chlorination_Sys_Storage_Location.Cause_Not_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000325/LER-1985-013, :on 850307 & 22,control Bldg HVAC Sys Manually Isolated Due to Receipt of High Chlorine Alarms at Chlorination Sys Storage Location.Cause Not Determined

LER-1984-055, :on 840817 & 20,during Work on Storage Facility for Plant Maint Insulators,Doors A028 & A029 Left Open. Caused by Personnel Failure to Realize Outer Door Part of Vital Area Boundary.Procedure Revised
type: Subject
label: 05000327/LER-1984-055, :on 840817 & 20,during Work on Storage Facility for Plant Maint Insulators,Doors A028 & A029 Left Open. Caused by Personnel Failure to Realize Outer Door Part of Vital Area Boundary.Procedure Revised
page: https://kanterella.com/05000327/LER-2D1984-2D055-2C_-3Aon_840817_-26_20-2Cduring_Work_on_Storage_Facility_for_Plant_Maint_Insulators-2CDoors_A028_-26_A029_Left_Open._Caused_by_Personnel_Failure_to_Rea…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1984-055, :on 840817 & 20,during Work on Storage Facility for Plant Maint Insulators,Doors A028 & A029 Left Open. Caused by Personnel Failure to Realize Outer Door Part of Vital Area Boundary.Procedure Revised

05000388/LER-1985-010, :on 850223,ESF Actuation Occurred.Caused by Tripped Reactor Protection Sys Power Supply Breaker.Breaker Reset & Affected Sys Restored
type: Subject
page: https://kanterella.com/05000388/LER-2D1985-2D010-2C_-3Aon_850223-2CESF_Actuation_Occurred.Caused_by_Tripped_Reactor_Protection_Sys_Power_Supply_Breaker.Breaker_Reset_-26_Affected_Sys_Restored
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000388/LER-1985-010, :on 850223,ESF Actuation Occurred.Caused by Tripped Reactor Protection Sys Power Supply Breaker.Breaker Reset & Affected Sys Restored

LER-1985-009, :on 850215,Train a of Control Room Emergency Ventilation Sys Declared Inoperable Due to Absence of Flow Restricting Orifice.Caused by Discrepancy Between Tech Spec Flow & Design Flow
type: Subject
label: 05000483/LER-1985-009, :on 850215,Train a of Control Room Emergency Ventilation Sys Declared Inoperable Due to Absence of Flow Restricting Orifice.Caused by Discrepancy Between Tech Spec Flow & Design Flow
page: https://kanterella.com/05000483/LER-2D1985-2D009-2C_-3Aon_850215-2CTrain_a_of_Control_Room_Emergency_Ventilation_Sys_Declared_Inoperable_Due_to_Absence_of_Flow_Restricting_Orifice.Caused_by_Discrepanc…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1985-009, :on 850215,Train a of Control Room Emergency Ventilation Sys Declared Inoperable Due to Absence of Flow Restricting Orifice.Caused by Discrepancy Between Tech Spec Flow & Design Flow

LER-1985-004-02, :on 850215 & 17,reactor Trips Occurred Due to lo-lo Steam Generator Water Level.Caused by Personnel Error & Failed Filter Cartridge Cover.New Cover Installed & Personnel Counseled
type: Subject
label: 05000328/LER-1985-004-02, :on 850215 & 17,reactor Trips Occurred Due to lo-lo Steam Generator Water Level.Caused by Personnel Error & Failed Filter Cartridge Cover.New Cover Installed & Personnel Counseled
page: https://kanterella.com/05000328/LER-2D1985-2D004-2D02-2C_-3Aon_850215_-26_17-2Creactor_Trips_Occurred_Due_to_lo-2Dlo_Steam_Generator_Water_Level.Caused_by_Personnel_Error_-26_Failed_Filter_Cartridge_C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1985-004-02, :on 850215 & 17,reactor Trips Occurred Due to lo-lo Steam Generator Water Level.Caused by Personnel Error & Failed Filter Cartridge Cover.New Cover Installed & Personnel Counseled

LER-1985-001-01, :on 850213,while Removing Jumpers from Refuel Floor Wall Duct Trip Units,Zone III Isolated on High Radiation Signal.Caused by Reactor Bldg Recirculation Fans Not Starting.Investigation Continuing
type: Subject
label: 05000387/LER-1985-001-01, :on 850213,while Removing Jumpers from Refuel Floor Wall Duct Trip Units,Zone III Isolated on High Radiation Signal.Caused by Reactor Bldg Recirculation Fans Not Starting.Investigation Continuing
page: https://kanterella.com/05000387/LER-2D1985-2D001-2D01-2C_-3Aon_850213-2Cwhile_Removing_Jumpers_from_Refuel_Floor_Wall_Duct_Trip_Units-2CZone_III_Isolated_on_High_Radiation_Signal.Caused_by_Reactor_Bld…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000387/LER-1985-001-01, :on 850213,while Removing Jumpers from Refuel Floor Wall Duct Trip Units,Zone III Isolated on High Radiation Signal.Caused by Reactor Bldg Recirculation Fans Not Starting.Investigation Continuing

LER-1992-008-02, :on 920717,various Actuations of Primary Containment,Reactor Vessel Isolation Sys & Reactor Encl Secondary Containment Isolation Occurred.Caused by Blown Fuse.Fuse Sent to Mfg for Failure Analysis
type: Subject
label: 05000353/LER-1992-008-02, :on 920717,various Actuations of Primary Containment,Reactor Vessel Isolation Sys & Reactor Encl Secondary Containment Isolation Occurred.Caused by Blown Fuse.Fuse Sent to Mfg for Failure Analysis
page: https://kanterella.com/05000353/LER-2D1992-2D008-2D02-2C_-3Aon_920717-2Cvarious_Actuations_of_Primary_Containment-2CReactor_Vessel_Isolation_Sys_-26_Reactor_Encl_Secondary_Containment_Isolation_Occurr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000353/LER-1992-008-02, :on 920717,various Actuations of Primary Containment,Reactor Vessel Isolation Sys & Reactor Encl Secondary Containment Isolation Occurred.Caused by Blown Fuse.Fuse Sent to Mfg for Failure Analysis

LER-1985-004, :on 850129,reactor Tripped.Caused by ESF Actuation Due to Nonlicensed Operations Personnel Removing Unit 3 Motor Generator Sets a & B from Svc Rather than Unit 4 Sets.Personnel Counseled
type: Subject
label: 05000250/LER-1985-004, :on 850129,reactor Tripped.Caused by ESF Actuation Due to Nonlicensed Operations Personnel Removing Unit 3 Motor Generator Sets a & B from Svc Rather than Unit 4 Sets.Personnel Counseled
page: https://kanterella.com/05000250/LER-2D1985-2D004-2C_-3Aon_850129-2Creactor_Tripped.Caused_by_ESF_Actuation_Due_to_Nonlicensed_Operations_Personnel_Removing_Unit_3_Motor_Generator_Sets_a_-26_B_from_Svc…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1985-004, :on 850129,reactor Tripped.Caused by ESF Actuation Due to Nonlicensed Operations Personnel Removing Unit 3 Motor Generator Sets a & B from Svc Rather than Unit 4 Sets.Personnel Counseled

LER-1984-023, :on 840822,while at 100- Power,Turbine Runback to 45- Power Occurred.Caused by Dropped Control Rod in Shutdown Bank a & Blown Stationary Gripper Fuse.Loose Cable Connector Replaced
type: Subject
label: 05000250/LER-1984-023, :on 840822,while at 100% Power,Turbine Runback to 45% Power Occurred.Caused by Dropped Control Rod in Shutdown Bank a & Blown Stationary Gripper Fuse.Loose Cable Connector Replaced
page: https://kanterella.com/05000250/LER-2D1984-2D023-2C_-3Aon_840822-2Cwhile_at_100-_Power-2CTurbine_Runback_to_45-_Power_Occurred.Caused_by_Dropped_Control_Rod_in_Shutdown_Bank_a_-26_Blown_Stationary_Gri…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1984-023, :on 840822,while at 100% Power,Turbine Runback to 45% Power Occurred.Caused by Dropped Control Rod in Shutdown Bank a & Blown Stationary Gripper Fuse.Loose Cable Connector Replaced

LER-1984-032, :on 840820,control Room Ventilation,Containment Purge & Fuel Bldg Ventilation Isolations Actuated.Caused by Failed 15-volt Dc Power Supply in ESF Actuation Sys Cabinet. Power Supply Replaced
type: Subject
label: 05000483/LER-1984-032, :on 840820,control Room Ventilation,Containment Purge & Fuel Bldg Ventilation Isolations Actuated.Caused by Failed 15-volt Dc Power Supply in ESF Actuation Sys Cabinet. Power Supply Replaced
page: https://kanterella.com/05000483/LER-2D1984-2D032-2C_-3Aon_840820-2Ccontrol_Room_Ventilation-2CContainment_Purge_-26_Fuel_Bldg_Ventilation_Isolations_Actuated.Caused_by_Failed_15-2Dvolt_Dc_Power_Supply…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1984-032, :on 840820,control Room Ventilation,Containment Purge & Fuel Bldg Ventilation Isolations Actuated.Caused by Failed 15-volt Dc Power Supply in ESF Actuation Sys Cabinet. Power Supply Replaced

05000397/LER-1984-086, :on 840814,equipment Operator Failed to Complete Fire Tour Assigned Per Tech Specs.Fire Tour Reestablished & Continued Per Tech Spec 3.7.7.Operator Reprimanded
type: Subject
page: https://kanterella.com/05000397/LER-2D1984-2D086-2C_-3Aon_840814-2Cequipment_Operator_Failed_to_Complete_Fire_Tour_Assigned_Per_Tech_Specs.Fire_Tour_Reestablished_-26_Continued_Per_Tech_Spec_3.7.7.Ope…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000397/LER-1984-086, :on 840814,equipment Operator Failed to Complete Fire Tour Assigned Per Tech Specs.Fire Tour Reestablished & Continued Per Tech Spec 3.7.7.Operator Reprimanded

LER-1992-002-03, :on 920320,determined That Actuators for Suppression Pool Makeup Sys Dump Valves Undersized,Per Generic Ltr 89-10.Caused by Use of Min Flowrate in Actuators.Torque Switch Setting Reset
type: Subject
label: 05000416/LER-1992-002-03, :on 920320,determined That Actuators for Suppression Pool Makeup Sys Dump Valves Undersized,Per Generic Ltr 89-10.Caused by Use of Min Flowrate in Actuators.Torque Switch Setting Reset
page: https://kanterella.com/05000416/LER-2D1992-2D002-2D03-2C_-3Aon_920320-2Cdetermined_That_Actuators_for_Suppression_Pool_Makeup_Sys_Dump_Valves_Undersized-2CPer_Generic_Ltr_89-2D10.Caused_by_Use_of_Min_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000416/LER-1992-002-03, :on 920320,determined That Actuators for Suppression Pool Makeup Sys Dump Valves Undersized,Per Generic Ltr 89-10.Caused by Use of Min Flowrate in Actuators.Torque Switch Setting Reset

LER-1984-006, :on 840618,sample Pump for Vent Wide Range Gas Monitor Turned Off,Causing Alarm.Caused by Operator Error. Alarm Response Procedure Issued for RM-11 & RM-23 Radiation Monitor Control & Display Modules
type: Subject
label: 05000483/LER-1984-006, :on 840618,sample Pump for Vent Wide Range Gas Monitor Turned Off,Causing Alarm.Caused by Operator Error. Alarm Response Procedure Issued for RM-11 & RM-23 Radiation Monitor Control & Display Modules
page: https://kanterella.com/05000483/LER-2D1984-2D006-2C_-3Aon_840618-2Csample_Pump_for_Vent_Wide_Range_Gas_Monitor_Turned_Off-2CCausing_Alarm.Caused_by_Operator_Error._Alarm_Response_Procedure_Issued_for_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1984-006, :on 840618,sample Pump for Vent Wide Range Gas Monitor Turned Off,Causing Alarm.Caused by Operator Error. Alarm Response Procedure Issued for RM-11 & RM-23 Radiation Monitor Control & Display Modules

LER-1984-054, :on 840827,reactor Trip & Turbine Trip Initiated from Steam flow-feed Feed Mismatch & Low Steam Generator Level.Caused by Loss of Power from Relay Rack 1-R-15.Relay Rack Breaker Reset
type: Subject
label: 05000327/LER-1984-054, :on 840827,reactor Trip & Turbine Trip Initiated from Steam flow-feed Feed Mismatch & Low Steam Generator Level.Caused by Loss of Power from Relay Rack 1-R-15.Relay Rack Breaker Reset
page: https://kanterella.com/05000327/LER-2D1984-2D054-2C_-3Aon_840827-2Creactor_Trip_-26_Turbine_Trip_Initiated_from_Steam_flow-2Dfeed_Feed_Mismatch_-26_Low_Steam_Generator_Level.Caused_by_Loss_of_Power_fr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1984-054, :on 840827,reactor Trip & Turbine Trip Initiated from Steam flow-feed Feed Mismatch & Low Steam Generator Level.Caused by Loss of Power from Relay Rack 1-R-15.Relay Rack Breaker Reset

LER-1984-021, :on 840617,during Surveillance Test for Standby Diesel Generator B Operability,Diesel Tripped on High Crankcase Pressure While Loaded to Approx 2,400 Kw.Caused by Scavenging Air Blower Failure.Blower Repaired
type: Subject
label: 05000331/LER-1984-021, :on 840617,during Surveillance Test for Standby Diesel Generator B Operability,Diesel Tripped on High Crankcase Pressure While Loaded to Approx 2,400 Kw.Caused by Scavenging Air Blower Failure.Blower Repaired
page: https://kanterella.com/05000331/LER-2D1984-2D021-2C_-3Aon_840617-2Cduring_Surveillance_Test_for_Standby_Diesel_Generator_B_Operability-2CDiesel_Tripped_on_High_Crankcase_Pressure_While_Loaded_to_Appro…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000331/LER-1984-021, :on 840617,during Surveillance Test for Standby Diesel Generator B Operability,Diesel Tripped on High Crankcase Pressure While Loaded to Approx 2,400 Kw.Caused by Scavenging Air Blower Failure.Blower Repaired

05000499/LER-1992-002, :on 920122,over Temp Delta Temp Trip Occurred. Caused by Personnel Error.Stp Setpoint Methodology Changed to Incorporate Current Changes to Safety Analyses
type: Subject
page: https://kanterella.com/05000499/LER-2D1992-2D002-2C_-3Aon_920122-2Cover_Temp_Delta_Temp_Trip_Occurred._Caused_by_Personnel_Error.Stp_Setpoint_Methodology_Changed_to_Incorporate_Current_Changes_to_Safe…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000499/LER-1992-002, :on 920122,over Temp Delta Temp Trip Occurred. Caused by Personnel Error.Stp Setpoint Methodology Changed to Incorporate Current Changes to Safety Analyses

LER-1995-004-02, :on 950814,TS Violation Occurred When RWCU Temp Switch Was Inoperable Due to Design Deficiency.Revised Calibr Sheet for TIS-2-12-099 to Add Note to Ensure Proper Installation of Thermistor
type: Subject
label: 05000277/LER-1995-004-02, :on 950814,TS Violation Occurred When RWCU Temp Switch Was Inoperable Due to Design Deficiency.Revised Calibr Sheet for TIS-2-12-099 to Add Note to Ensure Proper Installation of Thermistor
page: https://kanterella.com/05000277/LER-2D1995-2D004-2D02-2C_-3Aon_950814-2CTS_Violation_Occurred_When_RWCU_Temp_Switch_Was_Inoperable_Due_to_Design_Deficiency.Revised_Calibr_Sheet_for_TIS-2D2-2D12-2D099_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1995-004-02, :on 950814,TS Violation Occurred When RWCU Temp Switch Was Inoperable Due to Design Deficiency.Revised Calibr Sheet for TIS-2-12-099 to Add Note to Ensure Proper Installation of Thermistor

LER-1984-028, :on 840507,during Storm,Arcing Occurred Across Open Disconnect for 500 Kv Switchyard Breaker,Causing Loss of Power Which Resulted in Reactor Water Cleanup Reactor Isolation.Plant Shut Down
type: Subject
label: 05000416/LER-1984-028, :on 840507,during Storm,Arcing Occurred Across Open Disconnect for 500 Kv Switchyard Breaker,Causing Loss of Power Which Resulted in Reactor Water Cleanup Reactor Isolation.Plant Shut Down
page: https://kanterella.com/05000416/LER-2D1984-2D028-2C_-3Aon_840507-2Cduring_Storm-2CArcing_Occurred_Across_Open_Disconnect_for_500_Kv_Switchyard_Breaker-2CCausing_Loss_of_Power_Which_Resulted_in_Reactor…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000416/LER-1984-028, :on 840507,during Storm,Arcing Occurred Across Open Disconnect for 500 Kv Switchyard Breaker,Causing Loss of Power Which Resulted in Reactor Water Cleanup Reactor Isolation.Plant Shut Down

LER-1984-010-01, :on 840423,during Startup Operations,Turbine Trip & Reactor Trip Occurred.Caused by high-high Level in Steam Generator 23.Feedwater Flow Nozzle Replaced & All Sys Performed as Designed
type: Subject
label: 05000311/LER-1984-010-01, :on 840423,during Startup Operations,Turbine Trip & Reactor Trip Occurred.Caused by high-high Level in Steam Generator 23.Feedwater Flow Nozzle Replaced & All Sys Performed as Designed
page: https://kanterella.com/05000311/LER-2D1984-2D010-2D01-2C_-3Aon_840423-2Cduring_Startup_Operations-2CTurbine_Trip_-26_Reactor_Trip_Occurred.Caused_by_high-2Dhigh_Level_in_Steam_Generator_23.Feedwater_F…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000311/LER-1984-010-01, :on 840423,during Startup Operations,Turbine Trip & Reactor Trip Occurred.Caused by high-high Level in Steam Generator 23.Feedwater Flow Nozzle Replaced & All Sys Performed as Designed

LER-1984-035, :on 840619,cracks Found on Engine Side of Diesel Fire Pump Ob Flywheel.Cause Under Investigation by Util & Cummins Engine Co,Inc.New Flywheel Installed & Pump Tested & Returned to Svc
type: Subject
label: 05000373/LER-1984-035, :on 840619,cracks Found on Engine Side of Diesel Fire Pump Ob Flywheel.Cause Under Investigation by Util & Cummins Engine Co,Inc.New Flywheel Installed & Pump Tested & Returned to Svc
page: https://kanterella.com/05000373/LER-2D1984-2D035-2C_-3Aon_840619-2Ccracks_Found_on_Engine_Side_of_Diesel_Fire_Pump_Ob_Flywheel.Cause_Under_Investigation_by_Util_-26_Cummins_Engine_Co-2CInc.New_Flywhee…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000373/LER-1984-035, :on 840619,cracks Found on Engine Side of Diesel Fire Pump Ob Flywheel.Cause Under Investigation by Util & Cummins Engine Co,Inc.New Flywheel Installed & Pump Tested & Returned to Svc

LER-1984-011-01, :on 840620,following Repair of Valve 1E41-F001, HPCI Turbine Isolated During Testing.Caused by Emulsification of HPCI Turbine Lubricating Oil & Broken Ball on Tappet.Hpci Repaired & Returned to Svc
type: Subject
label: 05000321/LER-1984-011-01, :on 840620,following Repair of Valve 1E41-F001, HPCI Turbine Isolated During Testing.Caused by Emulsification of HPCI Turbine Lubricating Oil & Broken Ball on Tappet.Hpci Repaired & Returned to Svc
page: https://kanterella.com/05000321/LER-2D1984-2D011-2D01-2C_-3Aon_840620-2Cfollowing_Repair_of_Valve_1E41-2DF001-2C_HPCI_Turbine_Isolated_During_Testing.Caused_by_Emulsification_of_HPCI_Turbine_Lubricati…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000321/LER-1984-011-01, :on 840620,following Repair of Valve 1E41-F001, HPCI Turbine Isolated During Testing.Caused by Emulsification of HPCI Turbine Lubricating Oil & Broken Ball on Tappet.Hpci Repaired & Returned to Svc

05000333/LER-1984-008, :on 840313,100 F/H Heat Up Rate Exceeded Tech Spec Limits.Caused by Personnel Error.Personnel Counseled & Alarm Points Incorporated in Plant Process Computer
type: Subject
page: https://kanterella.com/05000333/LER-2D1984-2D008-2C_-3Aon_840313-2C100_F/H_Heat_Up_Rate_Exceeded_Tech_Spec_Limits.Caused_by_Personnel_Error.Personnel_Counseled_-26_Alarm_Points_Incorporated_in_Plant_P…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000333/LER-1984-008, :on 840313,100 F/H Heat Up Rate Exceeded Tech Spec Limits.Caused by Personnel Error.Personnel Counseled & Alarm Points Incorporated in Plant Process Computer

LER-1991-025, :on 910730,hi-hi Auxiliary Feedwater turbine- Driven Pump Sump Level Annunicator Continuously Alarmed in Control Room.Caused by Design Deficiency.Throttle Valve in Discharge Header Opened
type: Subject
label: 05000413/LER-1991-025, :on 910730,hi-hi Auxiliary Feedwater turbine- Driven Pump Sump Level Annunicator Continuously Alarmed in Control Room.Caused by Design Deficiency.Throttle Valve in Discharge Header Opened
page: https://kanterella.com/05000413/LER-2D1991-2D025-2C_-3Aon_910730-2Chi-2Dhi_Auxiliary_Feedwater_turbine-2D_Driven_Pump_Sump_Level_Annunicator_Continuously_Alarmed_in_Control_Room.Caused_by_Design_Defic…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1991-025, :on 910730,hi-hi Auxiliary Feedwater turbine- Driven Pump Sump Level Annunicator Continuously Alarmed in Control Room.Caused by Design Deficiency.Throttle Valve in Discharge Header Opened

05000281/LER-1984-009-01, :on 840415,reactor Trip Occurred as Result of Intermediate Range High Flux Trip.Caused by Spike on Range Detector NI-35.Emergency & Function Restoration Procedures Performed
type: Subject
page: https://kanterella.com/05000281/LER-2D1984-2D009-2D01-2C_-3Aon_840415-2Creactor_Trip_Occurred_as_Result_of_Intermediate_Range_High_Flux_Trip.Caused_by_Spike_on_Range_Detector_NI-2D35.Emergency_-26_Fun…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000281/LER-1984-009-01, :on 840415,reactor Trip Occurred as Result of Intermediate Range High Flux Trip.Caused by Spike on Range Detector NI-35.Emergency & Function Restoration Procedures Performed

LER-1984-013, :on 840407,while in Mode 3,both Subsystems to ECCS Discovered Inoperable Since 840406.Caused by Operator Failing to Identify That Limiting Condition for Operation Exceeded & Operative Procedures Revised
type: Subject
label: 05000275/LER-1984-013, :on 840407,while in Mode 3,both Subsystems to ECCS Discovered Inoperable Since 840406.Caused by Operator Failing to Identify That Limiting Condition for Operation Exceeded & Operative Procedures Revised
page: https://kanterella.com/05000275/LER-2D1984-2D013-2C_-3Aon_840407-2Cwhile_in_Mode_3-2Cboth_Subsystems_to_ECCS_Discovered_Inoperable_Since_840406.Caused_by_Operator_Failing_to_Identify_That_Limiting_Con…
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wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000275/LER-1984-013, :on 840407,while in Mode 3,both Subsystems to ECCS Discovered Inoperable Since 840406.Caused by Operator Failing to Identify That Limiting Condition for Operation Exceeded & Operative Procedures Revised

LER-1984-001, :on 840111,preparation of Fire Hazard Analysis & Review of Fire Protection Surveillance Results Identified Deficiencies in Fire Protection Program.Review in Progress. Complete Rept Will Be Submitted by 840228
type: Subject
label: 05000361/LER-1984-001, :on 840111,preparation of Fire Hazard Analysis & Review of Fire Protection Surveillance Results Identified Deficiencies in Fire Protection Program.Review in Progress. Complete Rept Will Be Submitted by 840228
page: https://kanterella.com/05000361/LER-2D1984-2D001-2C_-3Aon_840111-2Cpreparation_of_Fire_Hazard_Analysis_-26_Review_of_Fire_Protection_Surveillance_Results_Identified_Deficiencies_in_Fire_Protection_Pro…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000361/LER-1984-001, :on 840111,preparation of Fire Hazard Analysis & Review of Fire Protection Surveillance Results Identified Deficiencies in Fire Protection Program.Review in Progress. Complete Rept Will Be Submitted by 840228

LER-1984-019, :on 840320,while Investigating Differential Flow Indication Problem,Incorrect Calibr Data Used to Calibr Reactor Water Cleanup Sys Inlet Flow Transmitter.Caused by Conflicting Instrument Data Sheets
type: Subject
label: 05000373/LER-1984-019, :on 840320,while Investigating Differential Flow Indication Problem,Incorrect Calibr Data Used to Calibr Reactor Water Cleanup Sys Inlet Flow Transmitter.Caused by Conflicting Instrument Data Sheets
page: https://kanterella.com/05000373/LER-2D1984-2D019-2C_-3Aon_840320-2Cwhile_Investigating_Differential_Flow_Indication_Problem-2CIncorrect_Calibr_Data_Used_to_Calibr_Reactor_Water_Cleanup_Sys_Inlet_Flow_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000373/LER-1984-019, :on 840320,while Investigating Differential Flow Indication Problem,Incorrect Calibr Data Used to Calibr Reactor Water Cleanup Sys Inlet Flow Transmitter.Caused by Conflicting Instrument Data Sheets

Undated Ltr
type: Subject
label: 05000277/LER-1994-009-01, :on 940921,six Valves Associated W/Primary Containment Isolation Sys Group II Isolation Logic Closed. Caused by Lifting Common Neutral Lead on Relay 16A-K63 Part of PM Activity.Pcis Valves Replaced.W/Undated Ltr
page: https://kanterella.com/05000277/LER-2D1994-2D009-2D01-2C_-3Aon_940921-2Csix_Valves_Associated_W/Primary_Containment_Isolation_Sys_Group_II_Isolation_Logic_Closed._Caused_by_Lifting_Common_Neutral_Lead…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1994-009-01, :on 940921,six Valves Associated W/Primary Containment Isolation Sys Group II Isolation Logic Closed. Caused by Lifting Common Neutral Lead on Relay 16A-K63 Part of PM Activity.Pcis Valves Replaced.W/Undated Ltr

LER-1991-009, :on 910429,loss of Power to Bus 65F Occurred Due to Mispositioned Knife Switch.Procedure 42.302.06 & Similar Electrical Surveillance Procedures Will Be Revised as Needed No Later than Sept 1991
type: Subject
label: 05000341/LER-1991-009, :on 910429,loss of Power to Bus 65F Occurred Due to Mispositioned Knife Switch.Procedure 42.302.06 & Similar Electrical Surveillance Procedures Will Be Revised as Needed No Later than Sept 1991
page: https://kanterella.com/05000341/LER-2D1991-2D009-2C_-3Aon_910429-2Closs_of_Power_to_Bus_65F_Occurred_Due_to_Mispositioned_Knife_Switch.Procedure_42.302.06_-26_Similar_Electrical_Surveillance_Procedure…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000341/LER-1991-009, :on 910429,loss of Power to Bus 65F Occurred Due to Mispositioned Knife Switch.Procedure 42.302.06 & Similar Electrical Surveillance Procedures Will Be Revised as Needed No Later than Sept 1991

Undated Ltr
type: Subject
label: 05000277/LER-1994-008-02, :on 940909,discovered That ECCS & EDG May Have Been TS Inoperable on 940803 When ESW Outlet Valve MO-0498 Closed & Left Unattended,Causing ECT to Overflow.Valve Opened & ECT Level Restored to Normal Range.W/Undated Ltr
page: https://kanterella.com/05000277/LER-2D1994-2D008-2D02-2C_-3Aon_940909-2Cdiscovered_That_ECCS_-26_EDG_May_Have_Been_TS_Inoperable_on_940803_When_ESW_Outlet_Valve_MO-2D0498_Closed_-26_Left_Unattended-2C…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1994-008-02, :on 940909,discovered That ECCS & EDG May Have Been TS Inoperable on 940803 When ESW Outlet Valve MO-0498 Closed & Left Unattended,Causing ECT to Overflow.Valve Opened & ECT Level Restored to Normal Range.W/Undated Ltr

Erosion Resistant Piping
type: Subject
label: 05000423/LER-1991-009-01, :on 910408,Train a Svc Water Portion of Svc Water Sys Declared Inoperable Due to Pipe Wall Thinning Caused by Erosion.Eroded Section of Piping Replaced W/ Erosion Resistant Piping
page: https://kanterella.com/05000423/LER-2D1991-2D009-2D01-2C_-3Aon_910408-2CTrain_a_Svc_Water_Portion_of_Svc_Water_Sys_Declared_Inoperable_Due_to_Pipe_Wall_Thinning_Caused_by_Erosion.Eroded_Section_of_Pip…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1991-009-01, :on 910408,Train a Svc Water Portion of Svc Water Sys Declared Inoperable Due to Pipe Wall Thinning Caused by Erosion.Eroded Section of Piping Replaced W/ Erosion Resistant Piping

05000277/LER-1994-004-01, :on 940718,HPCI System Was Declared Inoperable. Caused by Problem W/Hpci Signal Isolator.Signal Isolating Device XS-2-23-144 Removed & Replaced
type: Subject
page: https://kanterella.com/05000277/LER-2D1994-2D004-2D01-2C_-3Aon_940718-2CHPCI_System_Was_Declared_Inoperable._Caused_by_Problem_W/Hpci_Signal_Isolator.Signal_Isolating_Device_XS-2D2-2D23-2D144_Removed_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1994-004-01, :on 940718,HPCI System Was Declared Inoperable. Caused by Problem W/Hpci Signal Isolator.Signal Isolating Device XS-2-23-144 Removed & Replaced

LER-1994-010, :on 940626,operator Pulled an Incorrect Fuse Which Caused Indicating Lights to Extinguish.Caused by Less than Adequate Attention to Detail.Both RO & Co Were Disciplined to Meet Management Expectation
type: Subject
label: 05000352/LER-1994-010, :on 940626,operator Pulled an Incorrect Fuse Which Caused Indicating Lights to Extinguish.Caused by Less than Adequate Attention to Detail.Both RO & Co Were Disciplined to Meet Management Expectation
page: https://kanterella.com/05000352/LER-2D1994-2D010-2C_-3Aon_940626-2Coperator_Pulled_an_Incorrect_Fuse_Which_Caused_Indicating_Lights_to_Extinguish.Caused_by_Less_than_Adequate_Attention_to_Detail.Both_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1994-010, :on 940626,operator Pulled an Incorrect Fuse Which Caused Indicating Lights to Extinguish.Caused by Less than Adequate Attention to Detail.Both RO & Co Were Disciplined to Meet Management Expectation

Bushing Disengaged.Caused by Procedure Error During Previous Maint
type: Subject
label: 05000331/LER-1983-010-03, /03L-0:on 830411,during Refueling Outage,One Snubber Found Inoperable,One Indeterminant,One Had Missing Bushing & One W/Bushing Disengaged.Caused by Procedure Error During Previous Maint
page: https://kanterella.com/05000331/LER-2D1983-2D010-2D03-2C_/03L-2D0-3Aon_830411-2Cduring_Refueling_Outage-2COne_Snubber_Found_Inoperable-2COne_Indeterminant-2COne_Had_Missing_Bushing_-26_One_W/Bushing_D…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000331/LER-1983-010-03, /03L-0:on 830411,during Refueling Outage,One Snubber Found Inoperable,One Indeterminant,One Had Missing Bushing & One W/Bushing Disengaged.Caused by Procedure Error During Previous Maint

LER-1991-006, :on 910401,operations Cooperative Student Failed to Replace High Radiation Area Barrier Rope Barricade.New Procedural Requirments to Replace High Radiation Entrance Barriers Initiated
type: Subject
label: 05000458/LER-1991-006, :on 910401,operations Cooperative Student Failed to Replace High Radiation Area Barrier Rope Barricade.New Procedural Requirments to Replace High Radiation Entrance Barriers Initiated
page: https://kanterella.com/05000458/LER-2D1991-2D006-2C_-3Aon_910401-2Coperations_Cooperative_Student_Failed_to_Replace_High_Radiation_Area_Barrier_Rope_Barricade.New_Procedural_Requirments_to_Replace_Hig…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000458/LER-1991-006, :on 910401,operations Cooperative Student Failed to Replace High Radiation Area Barrier Rope Barricade.New Procedural Requirments to Replace High Radiation Entrance Barriers Initiated

ML20133F927
type: Subject
page: https://kanterella.com/ML20133F927
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20133F927

ML20099F350
type: Subject
page: https://kanterella.com/ML20099F350
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20099F350

LER-1993-009-01, :on 930826,draftsman Discovered Unmarked Computer Diskette Containing Safeguards Info Drawings on Desk.Caused by Inadequate Safeguard Controls Procedures. Heightened Security Measures Implemented
type: Subject
label: 05000263/LER-1993-009-01, :on 930826,draftsman Discovered Unmarked Computer Diskette Containing Safeguards Info Drawings on Desk.Caused by Inadequate Safeguard Controls Procedures. Heightened Security Measures Implemented
page: https://kanterella.com/05000263/LER-2D1993-2D009-2D01-2C_-3Aon_930826-2Cdraftsman_Discovered_Unmarked_Computer_Diskette_Containing_Safeguards_Info_Drawings_on_Desk.Caused_by_Inadequate_Safeguard_Contr…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000263/LER-1993-009-01, :on 930826,draftsman Discovered Unmarked Computer Diskette Containing Safeguards Info Drawings on Desk.Caused by Inadequate Safeguard Controls Procedures. Heightened Security Measures Implemented

LER-1994-007, :on 940427,refuel Floor Secondary Containment Isolated & SGTS Initiated Due to Low Negative Differential Pressure Signal.Caused by Severe Storm.Normal Ventilation to Refuel Floor Restored After Storm Passed
type: Subject
label: 05000352/LER-1994-007, :on 940427,refuel Floor Secondary Containment Isolated & SGTS Initiated Due to Low Negative Differential Pressure Signal.Caused by Severe Storm.Normal Ventilation to Refuel Floor Restored After Storm Passed
page: https://kanterella.com/05000352/LER-2D1994-2D007-2C_-3Aon_940427-2Crefuel_Floor_Secondary_Containment_Isolated_-26_SGTS_Initiated_Due_to_Low_Negative_Differential_Pressure_Signal.Caused_by_Severe_Stor…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1994-007, :on 940427,refuel Floor Secondary Containment Isolated & SGTS Initiated Due to Low Negative Differential Pressure Signal.Caused by Severe Storm.Normal Ventilation to Refuel Floor Restored After Storm Passed

LER-1994-002-03, :on 940426,confirmed That Circulating Water Intake Composite Sampler Sys Not Properly Functioning.Caused by Small Valve on Sys That Became Plugged.Composite Sample Valve & Line Flushed
type: Subject
label: 05000277/LER-1994-002-03, :on 940426,confirmed That Circulating Water Intake Composite Sampler Sys Not Properly Functioning.Caused by Small Valve on Sys That Became Plugged.Composite Sample Valve & Line Flushed
page: https://kanterella.com/05000277/LER-2D1994-2D002-2D03-2C_-3Aon_940426-2Cconfirmed_That_Circulating_Water_Intake_Composite_Sampler_Sys_Not_Properly_Functioning.Caused_by_Small_Valve_on_Sys_That_Became_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1994-002-03, :on 940426,confirmed That Circulating Water Intake Composite Sampler Sys Not Properly Functioning.Caused by Small Valve on Sys That Became Plugged.Composite Sample Valve & Line Flushed

LER-1990-034, :on 901112,discovered That Emergency Diesel Generator Droop Selector Switches in Parallel Position. Caused by Personnel Error.Personnel Involved Counseled on Importance of Attention to Detail
type: Subject
label: 05000277/LER-1990-034, :on 901112,discovered That Emergency Diesel Generator Droop Selector Switches in Parallel Position. Caused by Personnel Error.Personnel Involved Counseled on Importance of Attention to Detail
page: https://kanterella.com/05000277/LER-2D1990-2D034-2C_-3Aon_901112-2Cdiscovered_That_Emergency_Diesel_Generator_Droop_Selector_Switches_in_Parallel_Position._Caused_by_Personnel_Error.Personnel_Involved…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1990-034, :on 901112,discovered That Emergency Diesel Generator Droop Selector Switches in Parallel Position. Caused by Personnel Error.Personnel Involved Counseled on Importance of Attention to Detail

LER-1990-044, :on 901130,reactor Operator Performed Test on Wrong Train of Charging Sys Due to Procedural Inadequacy. Results for Previously Performed Tests & Enhancements of Test Info on Work Orders Reviewed
type: Subject
label: 05000445/LER-1990-044, :on 901130,reactor Operator Performed Test on Wrong Train of Charging Sys Due to Procedural Inadequacy. Results for Previously Performed Tests & Enhancements of Test Info on Work Orders Reviewed
page: https://kanterella.com/05000445/LER-2D1990-2D044-2C_-3Aon_901130-2Creactor_Operator_Performed_Test_on_Wrong_Train_of_Charging_Sys_Due_to_Procedural_Inadequacy._Results_for_Previously_Performed_Tests_-…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000445/LER-1990-044, :on 901130,reactor Operator Performed Test on Wrong Train of Charging Sys Due to Procedural Inadequacy. Results for Previously Performed Tests & Enhancements of Test Info on Work Orders Reviewed

05000336/LER-1990-010-01, :on 900621,door Identified as Being in Configuration Not Consistent W/Bechtel Design Drawings Due to Lack of Knowledge of HELB Requirements for Area
type: Subject
page: https://kanterella.com/05000336/LER-2D1990-2D010-2D01-2C_-3Aon_900621-2Cdoor_Identified_as_Being_in_Configuration_Not_Consistent_W/Bechtel_Design_Drawings_Due_to_Lack_of_Knowledge_of_HELB_Requirements…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000336/LER-1990-010-01, :on 900621,door Identified as Being in Configuration Not Consistent W/Bechtel Design Drawings Due to Lack of Knowledge of HELB Requirements for Area

05000336/LER-1990-009-01, :on 900617,facility Experienced Inadvertent Partial Actuation of Train B of Auxiliary Exhaust Actuation Sys.Cause Undetermined.Two Addl Actuations Occurred on 900711
type: Subject
page: https://kanterella.com/05000336/LER-2D1990-2D009-2D01-2C_-3Aon_900617-2Cfacility_Experienced_Inadvertent_Partial_Actuation_of_Train_B_of_Auxiliary_Exhaust_Actuation_Sys.Cause_Undetermined.Two_Addl_Act…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000336/LER-1990-009-01, :on 900617,facility Experienced Inadvertent Partial Actuation of Train B of Auxiliary Exhaust Actuation Sys.Cause Undetermined.Two Addl Actuations Occurred on 900711

05000277/LER-1994-001-01, :on 940119,TS Violation Occurred Due to Fire Detection Sys Breaker Open W/No Hourly Firewatch in DG Cardox Room.Closed Breaker & Restored Fire Detection Instrumentation
type: Subject
page: https://kanterella.com/05000277/LER-2D1994-2D001-2D01-2C_-3Aon_940119-2CTS_Violation_Occurred_Due_to_Fire_Detection_Sys_Breaker_Open_W/No_Hourly_Firewatch_in_DG_Cardox_Room.Closed_Breaker_-26_Restored…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1994-001-01, :on 940119,TS Violation Occurred Due to Fire Detection Sys Breaker Open W/No Hourly Firewatch in DG Cardox Room.Closed Breaker & Restored Fire Detection Instrumentation

LER-1993-015-01, :on 931201,TS Violation Occurred Due to Improperly Secured Main Stack Particulate Filter.Filters Changed & Gas Marnelli Samples Obtained to Identify & Quantify Nuclides in Main Stack Effluent
type: Subject
label: 05000277/LER-1993-015-01, :on 931201,TS Violation Occurred Due to Improperly Secured Main Stack Particulate Filter.Filters Changed & Gas Marnelli Samples Obtained to Identify & Quantify Nuclides in Main Stack Effluent
page: https://kanterella.com/05000277/LER-2D1993-2D015-2D01-2C_-3Aon_931201-2CTS_Violation_Occurred_Due_to_Improperly_Secured_Main_Stack_Particulate_Filter.Filters_Changed_-26_Gas_Marnelli_Samples_Obtained_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1993-015-01, :on 931201,TS Violation Occurred Due to Improperly Secured Main Stack Particulate Filter.Filters Changed & Gas Marnelli Samples Obtained to Identify & Quantify Nuclides in Main Stack Effluent

05000334/LER-1990-011, :on 900719,ESF Actuation - Inadvertent Trip of Reactor Coolant Pump a Occurred During Maint Surveillance Procedure.Caused by Personnel Error.Procedures Revised
type: Subject
page: https://kanterella.com/05000334/LER-2D1990-2D011-2C_-3Aon_900719-2CESF_Actuation_-2D_Inadvertent_Trip_of_Reactor_Coolant_Pump_a_Occurred_During_Maint_Surveillance_Procedure.Caused_by_Personnel_Error.P…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1990-011, :on 900719,ESF Actuation - Inadvertent Trip of Reactor Coolant Pump a Occurred During Maint Surveillance Procedure.Caused by Personnel Error.Procedures Revised

05000333/LER-1990-023, :on 901019,manual Reactor Scram Due to Blocked Circulating Water Intake Screens
type: Subject
page: https://kanterella.com/05000333/LER-2D1990-2D023-2C_-3Aon_901019-2Cmanual_Reactor_Scram_Due_to_Blocked_Circulating_Water_Intake_Screens
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000333/LER-1990-023, :on 901019,manual Reactor Scram Due to Blocked Circulating Water Intake Screens

05000369/LER-1990-032, :on 901117,unit Experienced Turbine Trip, Followed by Reactor Trip.Cause Unknown.Control Room Personnel Initiated Turbine Exhaust Hood Spray
type: Subject
page: https://kanterella.com/05000369/LER-2D1990-2D032-2C_-3Aon_901117-2Cunit_Experienced_Turbine_Trip-2C_Followed_by_Reactor_Trip.Cause_Unknown.Control_Room_Personnel_Initiated_Turbine_Exhaust_Hood_Spray
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1990-032, :on 901117,unit Experienced Turbine Trip, Followed by Reactor Trip.Cause Unknown.Control Room Personnel Initiated Turbine Exhaust Hood Spray

05000440/LER-1990-031, :on 901022,control Rod Withdrawn W/O First Demonstrating by Channel Check That Scram Discharge Vol Level Instrumentation Operable
type: Subject
page: https://kanterella.com/05000440/LER-2D1990-2D031-2C_-3Aon_901022-2Ccontrol_Rod_Withdrawn_W/O_First_Demonstrating_by_Channel_Check_That_Scram_Discharge_Vol_Level_Instrumentation_Operable
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000440/LER-1990-031, :on 901022,control Rod Withdrawn W/O First Demonstrating by Channel Check That Scram Discharge Vol Level Instrumentation Operable

LER-1993-010-04, :on 930820,actuation of PCRVICS & ESF Occurred After Reactor Enclosure Exhaust Plenum Radiation Monitor Spuriously Tripped.Cause Not Determined.Sensor Converter for Radiation Monitor Replaced During Testing
type: Subject
label: 05000352/LER-1993-010-04, :on 930820,actuation of PCRVICS & ESF Occurred After Reactor Enclosure Exhaust Plenum Radiation Monitor Spuriously Tripped.Cause Not Determined.Sensor Converter for Radiation Monitor Replaced During Testing
page: https://kanterella.com/05000352/LER-2D1993-2D010-2D04-2C_-3Aon_930820-2Cactuation_of_PCRVICS_-26_ESF_Occurred_After_Reactor_Enclosure_Exhaust_Plenum_Radiation_Monitor_Spuriously_Tripped.Cause_Not_Dete…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1993-010-04, :on 930820,actuation of PCRVICS & ESF Occurred After Reactor Enclosure Exhaust Plenum Radiation Monitor Spuriously Tripped.Cause Not Determined.Sensor Converter for Radiation Monitor Replaced During Testing

Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit
type: Subject
label: 05000266/LER-1990-007, :on 900712,error Indicating Potential for Failure to Comply W/Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit
page: https://kanterella.com/05000266/LER-2D1990-2D007-2C_-3Aon_900712-2Cerror_Indicating_Potential_for_Failure_to_Comply_W/Peak_Cladding_Temp_Acceptance_Limit_Noted.Caused_by_Human_Error.Util_Committed_to_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000266/LER-1990-007, :on 900712,error Indicating Potential for Failure to Comply W/Peak Cladding Temp Acceptance Limit Noted.Caused by Human Error.Util Committed to Reduced Height Dependent Heat Flux Hot Channel Factor Limit

05000339/LER-1990-009-02, :on 901028,2J 416-volt Emergency Bus Deenergized Due to Design Deficiency
type: Subject
page: https://kanterella.com/05000339/LER-2D1990-2D009-2D02-2C_-3Aon_901028-2C2J_416-2Dvolt_Emergency_Bus_Deenergized_Due_to_Design_Deficiency
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000339/LER-1990-009-02, :on 901028,2J 416-volt Emergency Bus Deenergized Due to Design Deficiency

LER-1993-005, :on 930714,discovered That Primary Containment Spray Motor Operator Capability May Have Been Insufficient to Open MOV-7064 Under Degraded Conditions.Torque Switch Will Be Reset & Votes Testing Performed
type: Subject
label: 05000155/LER-1993-005, :on 930714,discovered That Primary Containment Spray Motor Operator Capability May Have Been Insufficient to Open MOV-7064 Under Degraded Conditions.Torque Switch Will Be Reset & Votes Testing Performed
page: https://kanterella.com/05000155/LER-2D1993-2D005-2C_-3Aon_930714-2Cdiscovered_That_Primary_Containment_Spray_Motor_Operator_Capability_May_Have_Been_Insufficient_to_Open_MOV-2D7064_Under_Degraded_Cond…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000155/LER-1993-005, :on 930714,discovered That Primary Containment Spray Motor Operator Capability May Have Been Insufficient to Open MOV-7064 Under Degraded Conditions.Torque Switch Will Be Reset & Votes Testing Performed

Nuclear Instrumentation Channel in Test.Caused by Failure to Respond to Control Room Indication.Operator Training Conducted
type: Subject
label: 05000304/LER-1988-001, :on 880108,nuclear Station Operator Failed to Log Delta I W/Nuclear Instrumentation Channel in Test.Caused by Failure to Respond to Control Room Indication.Operator Training Conducted
page: https://kanterella.com/05000304/LER-2D1988-2D001-2C_-3Aon_880108-2Cnuclear_Station_Operator_Failed_to_Log_Delta_I_W/Nuclear_Instrumentation_Channel_in_Test.Caused_by_Failure_to_Respond_to_Control_Room…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000304/LER-1988-001, :on 880108,nuclear Station Operator Failed to Log Delta I W/Nuclear Instrumentation Channel in Test.Caused by Failure to Respond to Control Room Indication.Operator Training Conducted

ML20057B632
type: Subject
page: https://kanterella.com/ML20057B632
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20057B632

PY-CEI-NRR-0015, Forwards Public Version of Rev 1 to Emergency Plan OM-15A, Incorporating Encl Responses to Questions in NRC 811221 & s & Addressing SER Outstanding Issue 19
type: Subject
page: https://kanterella.com/PY-2DCEI-2DNRR-2D0015-2C_Forwards_Public_Version_of_Rev_1_to_Emergency_Plan_OM-2D15A-2C_Incorporating_Encl_Responses_to_Questions_in_NRC_811221_-26_s_-26_Addressing_SER_Outstand…
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cross cutting aspect: H.2(i)
wiki page sort key: PY-CEI-NRR-0015, Forwards Public Version of Rev 1 to Emergency Plan OM-15A, Incorporating Encl Responses to Questions in NRC 811221 & s & Addressing SER Outstanding Issue 19

ML20052C573
type: Subject
page: https://kanterella.com/ML20052C573
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20052C573

ML20069F096
type: Subject
page: https://kanterella.com/ML20069F096
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20069F096

05000353/LER-1993-007-02, :on 930617,alarm Indicated TIP Sys Shear Valve Was Inoperable.Cause Interminate.Isolated Occurrence
type: Subject
page: https://kanterella.com/05000353/LER-2D1993-2D007-2D02-2C_-3Aon_930617-2Calarm_Indicated_TIP_Sys_Shear_Valve_Was_Inoperable.Cause_Interminate.Isolated_Occurrence
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000353/LER-1993-007-02, :on 930617,alarm Indicated TIP Sys Shear Valve Was Inoperable.Cause Interminate.Isolated Occurrence

05000213/LER-1993-006, :on 930523,EDG Failure Occurred Due to Diode Assembly Short.C/As:Installed New Diode Assemblies & Ventilation Fan Motors for Both Generators
type: Subject
page: https://kanterella.com/05000213/LER-2D1993-2D006-2C_-3Aon_930523-2CEDG_Failure_Occurred_Due_to_Diode_Assembly_Short.C/As-3AInstalled_New_Diode_Assemblies_-26_Ventilation_Fan_Motors_for_Both_Generators
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1993-006, :on 930523,EDG Failure Occurred Due to Diode Assembly Short.C/As:Installed New Diode Assemblies & Ventilation Fan Motors for Both Generators

ML20044D882
type: Subject
page: https://kanterella.com/ML20044D882
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20044D882

05000409/LER-1990-003, :on 900608,five Required Fire Protection QA Audits Missed.Caused by Scheduling Error Since 890101.Util Reverted to Original QA Audit Schedule
type: Subject
page: https://kanterella.com/05000409/LER-2D1990-2D003-2C_-3Aon_900608-2Cfive_Required_Fire_Protection_QA_Audits_Missed.Caused_by_Scheduling_Error_Since_890101.Util_Reverted_to_Original_QA_Audit_Schedule
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000409/LER-1990-003, :on 900608,five Required Fire Protection QA Audits Missed.Caused by Scheduling Error Since 890101.Util Reverted to Original QA Audit Schedule

LER-1990-009-01, :on 900511,determined That House Heating Steam Sys Could Potentially Degrade Environ Classified, Eeq Mild Environs. Caused by Incorrect Conclusion Drawn from 1973 Study.Plant Mods Implemented
type: Subject
label: 05000245/LER-1990-009-01, :on 900511,determined That House Heating Steam Sys Could Potentially Degrade Environ Classified, Eeq Mild Environs. Caused by Incorrect Conclusion Drawn from 1973 Study.Plant Mods Implemented
page: https://kanterella.com/05000245/LER-2D1990-2D009-2D01-2C_-3Aon_900511-2Cdetermined_That_House_Heating_Steam_Sys_Could_Potentially_Degrade_Environ_Classified-2C_Eeq_Mild_Environs._Caused_by_Incorrect_C…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000245/LER-1990-009-01, :on 900511,determined That House Heating Steam Sys Could Potentially Degrade Environ Classified, Eeq Mild Environs. Caused by Incorrect Conclusion Drawn from 1973 Study.Plant Mods Implemented

LER-1990-011-01, :on 900503,discovered That Tech Spec 3.4.1 Not Performed on 6-wk Frequency as Required.Caused by Personnel Error.Tracking of Surveillance Activities Scheduled to Be Transferred to Improved Software Package
type: Subject
label: 05000277/LER-1990-011-01, :on 900503,discovered That Tech Spec 3.4.1 Not Performed on 6-wk Frequency as Required.Caused by Personnel Error.Tracking of Surveillance Activities Scheduled to Be Transferred to Improved Software Package
page: https://kanterella.com/05000277/LER-2D1990-2D011-2D01-2C_-3Aon_900503-2Cdiscovered_That_Tech_Spec_3.4.1_Not_Performed_on_6-2Dwk_Frequency_as_Required.Caused_by_Personnel_Error.Tracking_of_Surveillance…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000277/LER-1990-011-01, :on 900503,discovered That Tech Spec 3.4.1 Not Performed on 6-wk Frequency as Required.Caused by Personnel Error.Tracking of Surveillance Activities Scheduled to Be Transferred to Improved Software Package

LER-1990-005, :on 900501,reactor Trip,Auxiliary Feedwater Actuation & Feedwater Isolation Occurred Due to Turbine Trip on Loss of Main Generator Stator Cooling Water.Caused by Blown Fuse.Fuse Replaced & Logic Changed
type: Subject
label: 05000483/LER-1990-005, :on 900501,reactor Trip,Auxiliary Feedwater Actuation & Feedwater Isolation Occurred Due to Turbine Trip on Loss of Main Generator Stator Cooling Water.Caused by Blown Fuse.Fuse Replaced & Logic Changed
page: https://kanterella.com/05000483/LER-2D1990-2D005-2C_-3Aon_900501-2Creactor_Trip-2CAuxiliary_Feedwater_Actuation_-26_Feedwater_Isolation_Occurred_Due_to_Turbine_Trip_on_Loss_of_Main_Generator_Stator_Co…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000483/LER-1990-005, :on 900501,reactor Trip,Auxiliary Feedwater Actuation & Feedwater Isolation Occurred Due to Turbine Trip on Loss of Main Generator Stator Cooling Water.Caused by Blown Fuse.Fuse Replaced & Logic Changed

LER-1990-005, :on 900420,condenser Vacuum Pump Discharge Wide Range Gas Monitor Setpoint Discovered to Be Incorrect.Caused by Inadequate Change Procedure for Data Base Manual. Administrative Procedures Revised
type: Subject
label: 05000382/LER-1990-005, :on 900420,condenser Vacuum Pump Discharge Wide Range Gas Monitor Setpoint Discovered to Be Incorrect.Caused by Inadequate Change Procedure for Data Base Manual. Administrative Procedures Revised
page: https://kanterella.com/05000382/LER-2D1990-2D005-2C_-3Aon_900420-2Ccondenser_Vacuum_Pump_Discharge_Wide_Range_Gas_Monitor_Setpoint_Discovered_to_Be_Incorrect.Caused_by_Inadequate_Change_Procedure_for_…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000382/LER-1990-005, :on 900420,condenser Vacuum Pump Discharge Wide Range Gas Monitor Setpoint Discovered to Be Incorrect.Caused by Inadequate Change Procedure for Data Base Manual. Administrative Procedures Revised

05000328/LER-1990-010, :on 900416,containment Ventilation Isolation Occurred.Caused by Allowing Gaseous Radiation Level to Increase Too Close to Alarm Setpoint.Recovery from Isolation Initiated
type: Subject
page: https://kanterella.com/05000328/LER-2D1990-2D010-2C_-3Aon_900416-2Ccontainment_Ventilation_Isolation_Occurred.Caused_by_Allowing_Gaseous_Radiation_Level_to_Increase_Too_Close_to_Alarm_Setpoint.Recover…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000328/LER-1990-010, :on 900416,containment Ventilation Isolation Occurred.Caused by Allowing Gaseous Radiation Level to Increase Too Close to Alarm Setpoint.Recovery from Isolation Initiated

LER-1990-011, :on 900402,inadvertent Actuation of Pressurizer Pressure Low Signal Occurred While Performing Calibr Procedure.Caused by Inappropriate Action by Technician Involved.Validation of Procedures Reviewed
type: Subject
label: 05000285/LER-1990-011, :on 900402,inadvertent Actuation of Pressurizer Pressure Low Signal Occurred While Performing Calibr Procedure.Caused by Inappropriate Action by Technician Involved.Validation of Procedures Reviewed
page: https://kanterella.com/05000285/LER-2D1990-2D011-2C_-3Aon_900402-2Cinadvertent_Actuation_of_Pressurizer_Pressure_Low_Signal_Occurred_While_Performing_Calibr_Procedure.Caused_by_Inappropriate_Action_by…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000285/LER-1990-011, :on 900402,inadvertent Actuation of Pressurizer Pressure Low Signal Occurred While Performing Calibr Procedure.Caused by Inappropriate Action by Technician Involved.Validation of Procedures Reviewed

LER-1993-003, :on 930205,steam Generator Blowdown Sys Isolated Due to High Level in Steam Generator Blowdown Tank. Caused by Discrepancies Between Actual & Indicated Tank Level.Temporary Operating Procedure Written
type: Subject
label: 05000412/LER-1993-003, :on 930205,steam Generator Blowdown Sys Isolated Due to High Level in Steam Generator Blowdown Tank. Caused by Discrepancies Between Actual & Indicated Tank Level.Temporary Operating Procedure Written
page: https://kanterella.com/05000412/LER-2D1993-2D003-2C_-3Aon_930205-2Csteam_Generator_Blowdown_Sys_Isolated_Due_to_High_Level_in_Steam_Generator_Blowdown_Tank._Caused_by_Discrepancies_Between_Actual_-26_…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000412/LER-1993-003, :on 930205,steam Generator Blowdown Sys Isolated Due to High Level in Steam Generator Blowdown Tank. Caused by Discrepancies Between Actual & Indicated Tank Level.Temporary Operating Procedure Written

05000413/LER-1990-023, :on 900330,ESF Actuation Occurred.Caused by Defective Procedure for Erroneous Info.Procedure Will Be Revised & Incident Will Be Reviewed by Exempt Performance Personnel
type: Subject
page: https://kanterella.com/05000413/LER-2D1990-2D023-2C_-3Aon_900330-2CESF_Actuation_Occurred.Caused_by_Defective_Procedure_for_Erroneous_Info.Procedure_Will_Be_Revised_-26_Incident_Will_Be_Reviewed_by_Ex…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1990-023, :on 900330,ESF Actuation Occurred.Caused by Defective Procedure for Erroneous Info.Procedure Will Be Revised & Incident Will Be Reviewed by Exempt Performance Personnel

05000324/LER-1989-013, :on 890909,HPCI Auxiliary Oil Pump Developed Shaft Seal Leak.Caused by Failure of Shaft Seal Due to Degradation of Adhesive That Bonds Seal Elastomer to Metal Retaining Ring
type: Subject
page: https://kanterella.com/05000324/LER-2D1989-2D013-2C_-3Aon_890909-2CHPCI_Auxiliary_Oil_Pump_Developed_Shaft_Seal_Leak.Caused_by_Failure_of_Shaft_Seal_Due_to_Degradation_of_Adhesive_That_Bonds_Seal_Elas…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000324/LER-1989-013, :on 890909,HPCI Auxiliary Oil Pump Developed Shaft Seal Leak.Caused by Failure of Shaft Seal Due to Degradation of Adhesive That Bonds Seal Elastomer to Metal Retaining Ring

LER-1991-001, :on 910125,automatic Primary Containment Isolation Control Sys Group 5 Actuation Occurred,Resulting in Closing of RCIC Turbine Steam Supply Isolation Valves. Caused by High Flow Conditions
type: Subject
label: 05000293/LER-1991-001, :on 910125,automatic Primary Containment Isolation Control Sys Group 5 Actuation Occurred,Resulting in Closing of RCIC Turbine Steam Supply Isolation Valves. Caused by High Flow Conditions
page: https://kanterella.com/05000293/LER-2D1991-2D001-2C_-3Aon_910125-2Cautomatic_Primary_Containment_Isolation_Control_Sys_Group_5_Actuation_Occurred-2CResulting_in_Closing_of_RCIC_Turbine_Steam_Supply_Is…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000293/LER-1991-001, :on 910125,automatic Primary Containment Isolation Control Sys Group 5 Actuation Occurred,Resulting in Closing of RCIC Turbine Steam Supply Isolation Valves. Caused by High Flow Conditions

LER-1990-007, :on 900907,unplanned Actuation of ESF Sys Occurred During I&C Surveillance Test.Caused by Inadequate procedure.SP44.650.16 Revised to Require That Leads Lifted & Individually Separated
type: Subject
label: 05000322/LER-1990-007, :on 900907,unplanned Actuation of ESF Sys Occurred During I&C Surveillance Test.Caused by Inadequate procedure.SP44.650.16 Revised to Require That Leads Lifted & Individually Separated
page: https://kanterella.com/05000322/LER-2D1990-2D007-2C_-3Aon_900907-2Cunplanned_Actuation_of_ESF_Sys_Occurred_During_I-26C_Surveillance_Test.Caused_by_Inadequate_procedure.SP44.650.16_Revised_to_Require_…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000322/LER-1990-007, :on 900907,unplanned Actuation of ESF Sys Occurred During I&C Surveillance Test.Caused by Inadequate procedure.SP44.650.16 Revised to Require That Leads Lifted & Individually Separated

LER-1990-005, :on 900211,no Fire Watch Insps for Rooms 103, 114 & 117 on Elevation 177 Ft in Reactor Encl Performed by Personnel.Caused by Personnel Error.Person Involved Disciplined.Training Program Improved
type: Subject
label: 05000352/LER-1990-005, :on 900211,no Fire Watch Insps for Rooms 103, 114 & 117 on Elevation 177 Ft in Reactor Encl Performed by Personnel.Caused by Personnel Error.Person Involved Disciplined.Training Program Improved
page: https://kanterella.com/05000352/LER-2D1990-2D005-2C_-3Aon_900211-2Cno_Fire_Watch_Insps_for_Rooms_103-2C_114_-26_117_on_Elevation_177_Ft_in_Reactor_Encl_Performed_by_Personnel.Caused_by_Personnel_Error…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1990-005, :on 900211,no Fire Watch Insps for Rooms 103, 114 & 117 on Elevation 177 Ft in Reactor Encl Performed by Personnel.Caused by Personnel Error.Person Involved Disciplined.Training Program Improved

LER-1990-003, :on 900214,discovered That Train B Fuel Handling Bldg Exhaust Air Filter Outlet Damper Would Not Open.Caused by Wiring Error Due to Failure of Technicians to Follow Work Instructions.Technicians Counseled
type: Subject
label: 05000499/LER-1990-003, :on 900214,discovered That Train B Fuel Handling Bldg Exhaust Air Filter Outlet Damper Would Not Open.Caused by Wiring Error Due to Failure of Technicians to Follow Work Instructions.Technicians Counseled
page: https://kanterella.com/05000499/LER-2D1990-2D003-2C_-3Aon_900214-2Cdiscovered_That_Train_B_Fuel_Handling_Bldg_Exhaust_Air_Filter_Outlet_Damper_Would_Not_Open.Caused_by_Wiring_Error_Due_to_Failure_of_T…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000499/LER-1990-003, :on 900214,discovered That Train B Fuel Handling Bldg Exhaust Air Filter Outlet Damper Would Not Open.Caused by Wiring Error Due to Failure of Technicians to Follow Work Instructions.Technicians Counseled

LER-1990-011, :on 900215,discovered That Control Room Doors Were More Difficult to Open than Normal.Ventilation Sys Found to Be Incapable of Maintaining Positive Pressure. Caused by Design Deficiency.Walls Sealed
type: Subject
label: 05000413/LER-1990-011, :on 900215,discovered That Control Room Doors Were More Difficult to Open than Normal.Ventilation Sys Found to Be Incapable of Maintaining Positive Pressure. Caused by Design Deficiency.Walls Sealed
page: https://kanterella.com/05000413/LER-2D1990-2D011-2C_-3Aon_900215-2Cdiscovered_That_Control_Room_Doors_Were_More_Difficult_to_Open_than_Normal.Ventilation_Sys_Found_to_Be_Incapable_of_Maintaining_Posit…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000413/LER-1990-011, :on 900215,discovered That Control Room Doors Were More Difficult to Open than Normal.Ventilation Sys Found to Be Incapable of Maintaining Positive Pressure. Caused by Design Deficiency.Walls Sealed

Only One of Two Containment Vent Valves Closed.Caused by Procedural Deficiency.Procedures Revised to Include Valve & Surveillance Test Program Instruction Revised
type: Subject
label: 05000318/LER-1989-012-01, :on 891227,core Alterations Performed W/Only One of Two Containment Vent Valves Closed.Caused by Procedural Deficiency.Procedures Revised to Include Valve & Surveillance Test Program Instruction Revised
page: https://kanterella.com/05000318/LER-2D1989-2D012-2D01-2C_-3Aon_891227-2Ccore_Alterations_Performed_W/Only_One_of_Two_Containment_Vent_Valves_Closed.Caused_by_Procedural_Deficiency.Procedures_Revised_t…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000318/LER-1989-012-01, :on 891227,core Alterations Performed W/Only One of Two Containment Vent Valves Closed.Caused by Procedural Deficiency.Procedures Revised to Include Valve & Surveillance Test Program Instruction Revised

LER-1990-002-02, :on 900127,control Room Isolation Occurred When Circuit Breaker Opened Supplying Power to Radiation Monitor. Caused by Failure by Personnel to Exercise Sufficient Caution.Responsible Engineers Reinstructed
type: Subject
label: 05000327/LER-1990-002-02, :on 900127,control Room Isolation Occurred When Circuit Breaker Opened Supplying Power to Radiation Monitor. Caused by Failure by Personnel to Exercise Sufficient Caution.Responsible Engineers Reinstructed
page: https://kanterella.com/05000327/LER-2D1990-2D002-2D02-2C_-3Aon_900127-2Ccontrol_Room_Isolation_Occurred_When_Circuit_Breaker_Opened_Supplying_Power_to_Radiation_Monitor._Caused_by_Failure_by_Personnel…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000327/LER-1990-002-02, :on 900127,control Room Isolation Occurred When Circuit Breaker Opened Supplying Power to Radiation Monitor. Caused by Failure by Personnel to Exercise Sufficient Caution.Responsible Engineers Reinstructed

LER-1990-004, :on 900124:discovered That Control Rod Positions Not Recorded on Operator Logs on 890425 When Control Rod Insertion Limit Monitor & Deviation Alarm Out of Svc.Cause Not Stated.Personnel Counseled
type: Subject
label: 05000334/LER-1990-004, :on 900124:discovered That Control Rod Positions Not Recorded on Operator Logs on 890425 When Control Rod Insertion Limit Monitor & Deviation Alarm Out of Svc.Cause Not Stated.Personnel Counseled
page: https://kanterella.com/05000334/LER-2D1990-2D004-2C_-3Aon_900124-3Adiscovered_That_Control_Rod_Positions_Not_Recorded_on_Operator_Logs_on_890425_When_Control_Rod_Insertion_Limit_Monitor_-26_Deviation_…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000334/LER-1990-004, :on 900124:discovered That Control Rod Positions Not Recorded on Operator Logs on 890425 When Control Rod Insertion Limit Monitor & Deviation Alarm Out of Svc.Cause Not Stated.Personnel Counseled

LER-1989-020, :on 891117,determined That as-built Configuration of Housing for Both Trains of Containment Cooling Fan HXs Not Seismically Qualified to Withstand Sse. Addl Seismic Restraints Installed
type: Subject
label: 05000482/LER-1989-020, :on 891117,determined That as-built Configuration of Housing for Both Trains of Containment Cooling Fan HXs Not Seismically Qualified to Withstand Sse. Addl Seismic Restraints Installed
page: https://kanterella.com/05000482/LER-2D1989-2D020-2C_-3Aon_891117-2Cdetermined_That_as-2Dbuilt_Configuration_of_Housing_for_Both_Trains_of_Containment_Cooling_Fan_HXs_Not_Seismically_Qualified_to_Withs…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000482/LER-1989-020, :on 891117,determined That as-built Configuration of Housing for Both Trains of Containment Cooling Fan HXs Not Seismically Qualified to Withstand Sse. Addl Seismic Restraints Installed

Components. Clothes Dryer Filters to Be Modified
type: Subject
label: 05000414/LER-1989-020-01, :on 891111,low Filtered Exhaust Flow Discovered by Control Room Operators During Observation of Indications. Caused by Design Oversight Re Interaction of Sys/Components. Clothes Dryer Filters to Be Modified
page: https://kanterella.com/05000414/LER-2D1989-2D020-2D01-2C_-3Aon_891111-2Clow_Filtered_Exhaust_Flow_Discovered_by_Control_Room_Operators_During_Observation_of_Indications._Caused_by_Design_Oversight_Re_…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000414/LER-1989-020-01, :on 891111,low Filtered Exhaust Flow Discovered by Control Room Operators During Observation of Indications. Caused by Design Oversight Re Interaction of Sys/Components. Clothes Dryer Filters to Be Modified

ML20010E672
type: Subject
page: https://kanterella.com/ML20010E672
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20010E672

ML20086P892
type: Subject
page: https://kanterella.com/ML20086P892
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20086P892

ML20107L927
type: Subject
page: https://kanterella.com/ML20107L927
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20107L927

ML20033C534
type: Subject
page: https://kanterella.com/ML20033C534
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20033C534

ST-HL-AE-4779, 1993 Annual Environ & Annual Radiological Environ Operating Repts South Tx Project Electric Generating Station. W/
type: Subject
page: https://kanterella.com/ST-2DHL-2DAE-2D4779-2C_1993_Annual_Environ_-26_Annual_Radiological_Environ_Operating_Repts_South_Tx_Project_Electric_Generating_Station._W/
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cross cutting aspect: H.2(i)
wiki page sort key: ST-HL-AE-4779, 1993 Annual Environ & Annual Radiological Environ Operating Repts South Tx Project Electric Generating Station. W/

ML20196J085
type: Subject
page: https://kanterella.com/ML20196J085
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20196J085

ML20033C952
type: Subject
page: https://kanterella.com/ML20033C952
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20033C952

ML20006F494
type: Subject
page: https://kanterella.com/ML20006F494
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20006F494

LER-1990-002, :on 900109,partial Train a Containment Depressurization Actuation Signal Generated.Caused by Personnel Error.Warnings Added to Production Maint Mgt Sys for Recirculation Spray Sys Pump Breakers
type: Subject
label: 05000423/LER-1990-002, :on 900109,partial Train a Containment Depressurization Actuation Signal Generated.Caused by Personnel Error.Warnings Added to Production Maint Mgt Sys for Recirculation Spray Sys Pump Breakers
page: https://kanterella.com/05000423/LER-2D1990-2D002-2C_-3Aon_900109-2Cpartial_Train_a_Containment_Depressurization_Actuation_Signal_Generated.Caused_by_Personnel_Error.Warnings_Added_to_Production_Maint_…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000423/LER-1990-002, :on 900109,partial Train a Containment Depressurization Actuation Signal Generated.Caused by Personnel Error.Warnings Added to Production Maint Mgt Sys for Recirculation Spray Sys Pump Breakers

ML20198J246
type: Subject
page: https://kanterella.com/ML20198J246
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20198J246

ML20126B340
type: Subject
page: https://kanterella.com/ML20126B340
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20126B340

ML20198K489
type: Subject
page: https://kanterella.com/ML20198K489
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: ML20198K489

LER-1989-019-01, :on 891227,discovered That Manual Reactor Trip Operating Surveillance Test Not Performed within Required Frequency Prior to Previous Reactor start-up on 891224. Caused by Inadequate start-up Procedures
type: Subject
label: 05000334/LER-1989-019-01, :on 891227,discovered That Manual Reactor Trip Operating Surveillance Test Not Performed within Required Frequency Prior to Previous Reactor start-up on 891224. Caused by Inadequate start-up Procedures
page: https://kanterella.com/05000334/LER-2D1989-2D019-2D01-2C_-3Aon_891227-2Cdiscovered_That_Manual_Reactor_Trip_Operating_Surveillance_Test_Not_Performed_within_Required_Frequency_Prior_to_Previous_Reacto…
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wiki page sort key: 05000334/LER-1989-019-01, :on 891227,discovered That Manual Reactor Trip Operating Surveillance Test Not Performed within Required Frequency Prior to Previous Reactor start-up on 891224. Caused by Inadequate start-up Procedures

Mfg Defect in GE Detector. Detector Placed in Bypass Position
type: Subject
label: 05000277/LER-1989-016, :on 890720 & 22,LPRM Detector 4B-40-33 Spiked High,Resulting in Full Reactor Scram Signal While in Cold Shutdown.Caused by Design/Mfg Defect in GE Detector. Detector Placed in Bypass Position
page: https://kanterella.com/05000277/LER-2D1989-2D016-2C_-3Aon_890720_-26_22-2CLPRM_Detector_4B-2D40-2D33_Spiked_High-2CResulting_in_Full_Reactor_Scram_Signal_While_in_Cold_Shutdown.Caused_by_Design/Mfg_De…
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wiki page sort key: 05000277/LER-1989-016, :on 890720 & 22,LPRM Detector 4B-40-33 Spiked High,Resulting in Full Reactor Scram Signal While in Cold Shutdown.Caused by Design/Mfg Defect in GE Detector. Detector Placed in Bypass Position

O Required Continuous Fire Watch Establishment.Caused by Personal Communication Breakdown. Valve Opened & Foreman in Charge Counseled
type: Subject
label: 05000327/LER-1989-030, :on 891204,fire Suppression Sys Deluge Valve Isolated More than 1 H W/O Required Continuous Fire Watch Establishment.Caused by Personal Communication Breakdown. Valve Opened & Foreman in Charge Counseled
page: https://kanterella.com/05000327/LER-2D1989-2D030-2C_-3Aon_891204-2Cfire_Suppression_Sys_Deluge_Valve_Isolated_More_than_1_H_W/O_Required_Continuous_Fire_Watch_Establishment.Caused_by_Personal_Communic…
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wiki page sort key: 05000327/LER-1989-030, :on 891204,fire Suppression Sys Deluge Valve Isolated More than 1 H W/O Required Continuous Fire Watch Establishment.Caused by Personal Communication Breakdown. Valve Opened & Foreman in Charge Counseled

ML20137K157
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page: https://kanterella.com/ML20137K157
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General Signal Corp Valve.Also Reported Per Part 21
type: Subject
label: 05000413/LER-1989-029-01, :on 891213,determined That Max Actuator Torque Switch Setting Insufficient to Overcome Friction Force Due to Age Hardening of Elastomeric Seat Matl on Bif/General Signal Corp Valve.Also Reported Per Part 21
page: https://kanterella.com/05000413/LER-2D1989-2D029-2D01-2C_-3Aon_891213-2Cdetermined_That_Max_Actuator_Torque_Switch_Setting_Insufficient_to_Overcome_Friction_Force_Due_to_Age_Hardening_of_Elastomeric_S…
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wiki page sort key: 05000413/LER-1989-029-01, :on 891213,determined That Max Actuator Torque Switch Setting Insufficient to Overcome Friction Force Due to Age Hardening of Elastomeric Seat Matl on Bif/General Signal Corp Valve.Also Reported Per Part 21

ML20005B521
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ML19345E394
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ML20027D439
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ML20135E309
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ML20126B104
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ML20034B953
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ML19344A439
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ML20066E269
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ML20008F542
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ML20008E635
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ML20031H210
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ML20035A157
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ML20058J397
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page: https://kanterella.com/ML20058J397
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ML20012G443
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page: https://kanterella.com/ML20012G443
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ML20004F554
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page: https://kanterella.com/ML20004F554
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Satisfactory Results
type: Subject
label: 05000293/LER-1989-031, :on 891024,closing Times for Two in-series Primary Containment Isolation Valves Exceeded Acceptance Criteria During Shutdown Testing.Cause Undetermined.Closing Time Retested W/Satisfactory Results
page: https://kanterella.com/05000293/LER-2D1989-2D031-2C_-3Aon_891024-2Cclosing_Times_for_Two_in-2Dseries_Primary_Containment_Isolation_Valves_Exceeded_Acceptance_Criteria_During_Shutdown_Testing.Cause_Und…
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wiki page sort key: 05000293/LER-1989-031, :on 891024,closing Times for Two in-series Primary Containment Isolation Valves Exceeded Acceptance Criteria During Shutdown Testing.Cause Undetermined.Closing Time Retested W/Satisfactory Results

ML19329D238
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page: https://kanterella.com/ML19329D238
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ML20041E272
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ML19249B073
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ML19220C629
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ML18127B327
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ML18183A462
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ML18026A325
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W3F1-2016-0037, Annual Radiological Environmental Operating Report - 2015
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page: https://kanterella.com/W3F1-2D2016-2D0037-2C_Annual_Radiological_Environmental_Operating_Report_-2D_2015
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RC-14-0129, Response to Request for Additional Information on License Amendment Request LAR-06-00055 and to Adopt NFPA 805
type: Subject
page: https://kanterella.com/RC-2D14-2D0129-2C_Response_to_Request_for_Additional_Information_on_License_Amendment_Request_LAR-2D06-2D00055_and_to_Adopt_NFPA_805
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wiki page sort key: RC-14-0129, Response to Request for Additional Information on License Amendment Request LAR-06-00055 and to Adopt NFPA 805

ML12284A202
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ML112370886
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ML18206A538
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DCL-2003-510, Annual Report for 2002 on Discharge Monitoring, in Accordance with Order 90-09, NPDES No CA0003751
type: Subject
page: https://kanterella.com/DCL-2D2003-2D510-2C_Annual_Report_for_2002_on_Discharge_Monitoring-2C_in_Accordance_with_Order_90-2D09-2C_NPDES_No_CA0003751
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wiki page sort key: DCL-2003-510, Annual Report for 2002 on Discharge Monitoring, in Accordance with Order 90-09, NPDES No CA0003751

ML041630313
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ML18129A331
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ML12052A055
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ML17111A844
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ML15058A613
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ML19249A998
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ML111990273
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ML19320A588
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ML22193A107
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ML18233A115
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ML022670064
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ML20235T296
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ML17303A539
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ML20148T286
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ML052060263
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ML030710188
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ML20041G383
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ML21096A294
type: Subject
page: https://kanterella.com/ML21096A294
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AEP-NRC-2024-86, Unit 2 - Decommissioning Funding Plan for Independent Spent Fuel Storage Installation
type: Subject
page: https://kanterella.com/AEP-2DNRC-2D2024-2D86-2C_Unit_2_-2D_Decommissioning_Funding_Plan_for_Independent_Spent_Fuel_Storage_Installation
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wiki page sort key: AEP-NRC-2024-86, Unit 2 - Decommissioning Funding Plan for Independent Spent Fuel Storage Installation

ML20288A420
type: Subject
page: https://kanterella.com/ML20288A420
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ML20294A103
type: Subject
page: https://kanterella.com/ML20294A103
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LER-1989-003, :on 890307,plant Shutdown Due to Air Leak on Feedwater Regulating Valve (Frv).Caused by Failure to Identify Need to Perform Adequate Preventive Maint on Positioner.Frv Controller Placed in Manual
type: Subject
label: 05000318/LER-1989-003, :on 890307,plant Shutdown Due to Air Leak on Feedwater Regulating Valve (Frv).Caused by Failure to Identify Need to Perform Adequate Preventive Maint on Positioner.Frv Controller Placed in Manual
page: https://kanterella.com/05000318/LER-2D1989-2D003-2C_-3Aon_890307-2Cplant_Shutdown_Due_to_Air_Leak_on_Feedwater_Regulating_Valve_-28Frv-29.Caused_by_Failure_to_Identify_Need_to_Perform_Adequate_Prevent…
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wiki page sort key: 05000318/LER-1989-003, :on 890307,plant Shutdown Due to Air Leak on Feedwater Regulating Valve (Frv).Caused by Failure to Identify Need to Perform Adequate Preventive Maint on Positioner.Frv Controller Placed in Manual

ML23079A216
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page: https://kanterella.com/ML23079A216
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ML23079A212
type: Subject
page: https://kanterella.com/ML23079A212
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ML20238D865
type: Subject
page: https://kanterella.com/ML20238D865
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LER-1987-012-02, :on 870709,diesel Generator Load Sequencer 1A Actuated in LOCA Mode During Routine Periodic Test of Slave Relays in Solid State Protection Sys.Caused by Defective Procedures.Slave Relay Test Procedures Revised
type: Subject
label: 05000369/LER-1987-012-02, :on 870709,diesel Generator Load Sequencer 1A Actuated in LOCA Mode During Routine Periodic Test of Slave Relays in Solid State Protection Sys.Caused by Defective Procedures.Slave Relay Test Procedures Revised
page: https://kanterella.com/05000369/LER-2D1987-2D012-2D02-2C_-3Aon_870709-2Cdiesel_Generator_Load_Sequencer_1A_Actuated_in_LOCA_Mode_During_Routine_Periodic_Test_of_Slave_Relays_in_Solid_State_Protection_…
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wiki page sort key: 05000369/LER-1987-012-02, :on 870709,diesel Generator Load Sequencer 1A Actuated in LOCA Mode During Routine Periodic Test of Slave Relays in Solid State Protection Sys.Caused by Defective Procedures.Slave Relay Test Procedures Revised

ML20236G497
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page: https://kanterella.com/ML20236G497
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ML20236E487
type: Subject
page: https://kanterella.com/ML20236E487
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LER-1987-025, :on 870506,determined That Tech Spec Surveillance Requirement 4.6.4.3.a Acceptance Criteria Not Being Fully Implemented.Caused by Inadequate Procedure. Surveillance Instructions to Be Revised
type: Subject
label: 05000327/LER-1987-025, :on 870506,determined That Tech Spec Surveillance Requirement 4.6.4.3.a Acceptance Criteria Not Being Fully Implemented.Caused by Inadequate Procedure. Surveillance Instructions to Be Revised
page: https://kanterella.com/05000327/LER-2D1987-2D025-2C_-3Aon_870506-2Cdetermined_That_Tech_Spec_Surveillance_Requirement_4.6.4.3.a_Acceptance_Criteria_Not_Being_Fully_Implemented.Caused_by_Inadequate_Pro…
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wiki page sort key: 05000327/LER-1987-025, :on 870506,determined That Tech Spec Surveillance Requirement 4.6.4.3.a Acceptance Criteria Not Being Fully Implemented.Caused by Inadequate Procedure. Surveillance Instructions to Be Revised

LER-1986-041, :on 860830,feedwater Regulating Valve FW-FCV-1301-1 to Steam Generator 1 Became Stuck Open,Causing Manual Reactor Trip.Caused by Failure of Weld Between Stem & Plug.Failed Part of Weld Sent to Mfg
type: Subject
label: 05000213/LER-1986-041, :on 860830,feedwater Regulating Valve FW-FCV-1301-1 to Steam Generator 1 Became Stuck Open,Causing Manual Reactor Trip.Caused by Failure of Weld Between Stem & Plug.Failed Part of Weld Sent to Mfg
page: https://kanterella.com/05000213/LER-2D1986-2D041-2C_-3Aon_860830-2Cfeedwater_Regulating_Valve_FW-2DFCV-2D1301-2D1_to_Steam_Generator_1_Became_Stuck_Open-2CCausing_Manual_Reactor_Trip.Caused_by_Failure…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000213/LER-1986-041, :on 860830,feedwater Regulating Valve FW-FCV-1301-1 to Steam Generator 1 Became Stuck Open,Causing Manual Reactor Trip.Caused by Failure of Weld Between Stem & Plug.Failed Part of Weld Sent to Mfg

O Establishing Continuous Fire Watch.Caused by Lack of Understanding of Tech Spec Requirements.Util Maint Personnel Counseled
type: Subject
label: 05000483/LER-1987-008, :on 870504,util Maint Electricians Blocked Open Fire Door W/O Establishing Continuous Fire Watch.Caused by Lack of Understanding of Tech Spec Requirements.Util Maint Personnel Counseled
page: https://kanterella.com/05000483/LER-2D1987-2D008-2C_-3Aon_870504-2Cutil_Maint_Electricians_Blocked_Open_Fire_Door_W/O_Establishing_Continuous_Fire_Watch.Caused_by_Lack_of_Understanding_of_Tech_Spec_Re…
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wiki page sort key: 05000483/LER-1987-008, :on 870504,util Maint Electricians Blocked Open Fire Door W/O Establishing Continuous Fire Watch.Caused by Lack of Understanding of Tech Spec Requirements.Util Maint Personnel Counseled

LER-1986-028-01, :on 860828,personnel Access Doors from Turbine Bldg Into Reactor Bldg Opened at Same Time Resulting in Momentary Loss of Secondary Containment.Caused by Rectifier Solenoid Failure.Rectifier Replaced
type: Subject
label: 05000259/LER-1986-028-01, :on 860828,personnel Access Doors from Turbine Bldg Into Reactor Bldg Opened at Same Time Resulting in Momentary Loss of Secondary Containment.Caused by Rectifier Solenoid Failure.Rectifier Replaced
page: https://kanterella.com/05000259/LER-2D1986-2D028-2D01-2C_-3Aon_860828-2Cpersonnel_Access_Doors_from_Turbine_Bldg_Into_Reactor_Bldg_Opened_at_Same_Time_Resulting_in_Momentary_Loss_of_Secondary_Containm…
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wiki page sort key: 05000259/LER-1986-028-01, :on 860828,personnel Access Doors from Turbine Bldg Into Reactor Bldg Opened at Same Time Resulting in Momentary Loss of Secondary Containment.Caused by Rectifier Solenoid Failure.Rectifier Replaced

05000369/LER-1986-007-01, :on 860325,reactor Tripped on Steam Generator Lb lo-lo Level Signal.Caused by Failure of Bussman Fuses. Indicating Fuses Will Be Replaced W/Nonindicating Fuses
type: Subject
page: https://kanterella.com/05000369/LER-2D1986-2D007-2D01-2C_-3Aon_860325-2Creactor_Tripped_on_Steam_Generator_Lb_lo-2Dlo_Level_Signal.Caused_by_Failure_of_Bussman_Fuses._Indicating_Fuses_Will_Be_Replaced…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000369/LER-1986-007-01, :on 860325,reactor Tripped on Steam Generator Lb lo-lo Level Signal.Caused by Failure of Bussman Fuses. Indicating Fuses Will Be Replaced W/Nonindicating Fuses

LER-1988-005-02, :on 880925,RCS Heatup Rate Increased to 60 F Per Hour When Third Reactor Coolant Pump Started.Caused by Procedural Error.Operators Trained & Procedures Revised Re Primary Monitoring Method Used
type: Subject
label: 05000289/LER-1988-005-02, :on 880925,RCS Heatup Rate Increased to 60 F Per Hour When Third Reactor Coolant Pump Started.Caused by Procedural Error.Operators Trained & Procedures Revised Re Primary Monitoring Method Used
page: https://kanterella.com/05000289/LER-2D1988-2D005-2D02-2C_-3Aon_880925-2CRCS_Heatup_Rate_Increased_to_60_F_Per_Hour_When_Third_Reactor_Coolant_Pump_Started.Caused_by_Procedural_Error.Operators_Trained_…
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wiki page sort key: 05000289/LER-1988-005-02, :on 880925,RCS Heatup Rate Increased to 60 F Per Hour When Third Reactor Coolant Pump Started.Caused by Procedural Error.Operators Trained & Procedures Revised Re Primary Monitoring Method Used

LER-1986-009, :on 860714,ESF Actuated When Penetration Room Filtration Sys Started Automatically.Caused by Personnel Error During Removal of Radiation Monitor R-25A from Svc for Maint.Technician Counseled
type: Subject
label: 05000348/LER-1986-009, :on 860714,ESF Actuated When Penetration Room Filtration Sys Started Automatically.Caused by Personnel Error During Removal of Radiation Monitor R-25A from Svc for Maint.Technician Counseled
page: https://kanterella.com/05000348/LER-2D1986-2D009-2C_-3Aon_860714-2CESF_Actuated_When_Penetration_Room_Filtration_Sys_Started_Automatically.Caused_by_Personnel_Error_During_Removal_of_Radiation_Monitor…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000348/LER-1986-009, :on 860714,ESF Actuated When Penetration Room Filtration Sys Started Automatically.Caused by Personnel Error During Removal of Radiation Monitor R-25A from Svc for Maint.Technician Counseled

O Full Main Lube Oil Pressure
type: Subject
label: 05000305/LER-1986-003, :on 860326,potential Problem Found w/long-term Reliability of Both Backup Emergency Ac Diesel Generators. Caused by Numerous Fast Starts of Diesel Generator W/O Full Main Lube Oil Pressure
page: https://kanterella.com/05000305/LER-2D1986-2D003-2C_-3Aon_860326-2Cpotential_Problem_Found_w/long-2Dterm_Reliability_of_Both_Backup_Emergency_Ac_Diesel_Generators._Caused_by_Numerous_Fast_Starts_of_Di…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000305/LER-1986-003, :on 860326,potential Problem Found w/long-term Reliability of Both Backup Emergency Ac Diesel Generators. Caused by Numerous Fast Starts of Diesel Generator W/O Full Main Lube Oil Pressure

LER-1986-006-01, :on 860326,discrepancy Noted Between Reactor Protection & Engineered Safeguards Sys Time Response Test Procedure & Tech Spec Requirements.Reactor Coolant Pump Undervoltage Relay Response Time Omitted.Procedure Revised
type: Subject
label: 05000315/LER-1986-006-01, :on 860326,discrepancy Noted Between Reactor Protection & Engineered Safeguards Sys Time Response Test Procedure & Tech Spec Requirements.Reactor Coolant Pump Undervoltage Relay Response Time Omitted.Procedure Revised
page: https://kanterella.com/05000315/LER-2D1986-2D006-2D01-2C_-3Aon_860326-2Cdiscrepancy_Noted_Between_Reactor_Protection_-26_Engineered_Safeguards_Sys_Time_Response_Test_Procedure_-26_Tech_Spec_Requiremen…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1986-006-01, :on 860326,discrepancy Noted Between Reactor Protection & Engineered Safeguards Sys Time Response Test Procedure & Tech Spec Requirements.Reactor Coolant Pump Undervoltage Relay Response Time Omitted.Procedure Revised

LER-1984-054, :on 840818,isolations of Reactor Water Cleanup Occurred.Under Same Conditions,Two Other Reactor Water Cleanup Isolations Occurred.Caused by High Differential Flow.Corrective Actions Under Review
type: Subject
label: 05000374/LER-1984-054, :on 840818,isolations of Reactor Water Cleanup Occurred.Under Same Conditions,Two Other Reactor Water Cleanup Isolations Occurred.Caused by High Differential Flow.Corrective Actions Under Review
page: https://kanterella.com/05000374/LER-2D1984-2D054-2C_-3Aon_840818-2Cisolations_of_Reactor_Water_Cleanup_Occurred.Under_Same_Conditions-2CTwo_Other_Reactor_Water_Cleanup_Isolations_Occurred.Caused_by_Hi…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000374/LER-1984-054, :on 840818,isolations of Reactor Water Cleanup Occurred.Under Same Conditions,Two Other Reactor Water Cleanup Isolations Occurred.Caused by High Differential Flow.Corrective Actions Under Review

LER-1984-018-01, :on 840814,CRID IV Inverter Abnormal Alarm Activated Due to Crid Failure,Resulting in Reactor Trip & Safety Injection.Caused by Leaking Water from Emergency Shower & Eyewash Station.Design Change Planned
type: Subject
label: 05000315/LER-1984-018-01, :on 840814,CRID IV Inverter Abnormal Alarm Activated Due to Crid Failure,Resulting in Reactor Trip & Safety Injection.Caused by Leaking Water from Emergency Shower & Eyewash Station.Design Change Planned
page: https://kanterella.com/05000315/LER-2D1984-2D018-2D01-2C_-3Aon_840814-2CCRID_IV_Inverter_Abnormal_Alarm_Activated_Due_to_Crid_Failure-2CResulting_in_Reactor_Trip_-26_Safety_Injection.Caused_by_Leaking…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000315/LER-1984-018-01, :on 840814,CRID IV Inverter Abnormal Alarm Activated Due to Crid Failure,Resulting in Reactor Trip & Safety Injection.Caused by Leaking Water from Emergency Shower & Eyewash Station.Design Change Planned

LER-1995-004, :on 950404,TS 3.0.3 Entered Due to Inoperability of Digital Rod Position Indication Sys.Caused by Loose Connection of Control Wire Internal to Automatic Transfer Switch.Wire Reterminated
type: Subject
label: 05000499/LER-1995-004, :on 950404,TS 3.0.3 Entered Due to Inoperability of Digital Rod Position Indication Sys.Caused by Loose Connection of Control Wire Internal to Automatic Transfer Switch.Wire Reterminated
page: https://kanterella.com/05000499/LER-2D1995-2D004-2C_-3Aon_950404-2CTS_3.0.3_Entered_Due_to_Inoperability_of_Digital_Rod_Position_Indication_Sys.Caused_by_Loose_Connection_of_Control_Wire_Internal_to_A…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000499/LER-1995-004, :on 950404,TS 3.0.3 Entered Due to Inoperability of Digital Rod Position Indication Sys.Caused by Loose Connection of Control Wire Internal to Automatic Transfer Switch.Wire Reterminated

LER-1984-022, :on 840721 & 22,daily Calibr of Nuclear Power Range (Thermal Power Calculation) Not Performed Per Tech Specs.Caused by Personnel Oversight.Checks for Calculations Made & Supervisory Discussions Held
type: Subject
label: 05000250/LER-1984-022, :on 840721 & 22,daily Calibr of Nuclear Power Range (Thermal Power Calculation) Not Performed Per Tech Specs.Caused by Personnel Oversight.Checks for Calculations Made & Supervisory Discussions Held
page: https://kanterella.com/05000250/LER-2D1984-2D022-2C_-3Aon_840721_-26_22-2Cdaily_Calibr_of_Nuclear_Power_Range_-28Thermal_Power_Calculation-29_Not_Performed_Per_Tech_Specs.Caused_by_Personnel_Oversight…
wiki namespace: 0
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cross cutting aspect: H.2(i)
wiki page sort key: 05000250/LER-1984-022, :on 840721 & 22,daily Calibr of Nuclear Power Range (Thermal Power Calculation) Not Performed Per Tech Specs.Caused by Personnel Oversight.Checks for Calculations Made & Supervisory Discussions Held

05000285/LER-1984-012, :on 840717,boron Concentration in Safety Injection & Refueling Water Tank Below Tech Spec Limits. Caused by Analytical Error.Boron Concentration Maintained at Higher Level
type: Subject
page: https://kanterella.com/05000285/LER-2D1984-2D012-2C_-3Aon_840717-2Cboron_Concentration_in_Safety_Injection_-26_Refueling_Water_Tank_Below_Tech_Spec_Limits._Caused_by_Analytical_Error.Boron_Concentrati…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000285/LER-1984-012, :on 840717,boron Concentration in Safety Injection & Refueling Water Tank Below Tech Spec Limits. Caused by Analytical Error.Boron Concentration Maintained at Higher Level

LER-1984-036, :on 840423,during Initial Power,Test Equipment Installed to Facilitate Troubleshooting Feedwater Control Sys Injected Test Signal Into Feedwater Control Circuit. Caused by Improperly Positioned Bypass Switch
type: Subject
label: 05000397/LER-1984-036, :on 840423,during Initial Power,Test Equipment Installed to Facilitate Troubleshooting Feedwater Control Sys Injected Test Signal Into Feedwater Control Circuit. Caused by Improperly Positioned Bypass Switch
page: https://kanterella.com/05000397/LER-2D1984-2D036-2C_-3Aon_840423-2Cduring_Initial_Power-2CTest_Equipment_Installed_to_Facilitate_Troubleshooting_Feedwater_Control_Sys_Injected_Test_Signal_Into_Feedwat…
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cross cutting aspect: H.2(i)
wiki page sort key: 05000397/LER-1984-036, :on 840423,during Initial Power,Test Equipment Installed to Facilitate Troubleshooting Feedwater Control Sys Injected Test Signal Into Feedwater Control Circuit. Caused by Improperly Positioned Bypass Switch

ML20082B202
type: Subject
page: https://kanterella.com/ML20082B202
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wiki page sort key: ML20082B202

LER-1990-008-04, :on 901227,during Rod Movement Testing Shutdown Bank E Fell Into Core.Manual Reactor Trip Initiated.Caused by Possible Equipment Failure.Technical Review Performed. Reactor Restarted
type: Subject
label: 05000370/LER-1990-008-04, :on 901227,during Rod Movement Testing Shutdown Bank E Fell Into Core.Manual Reactor Trip Initiated.Caused by Possible Equipment Failure.Technical Review Performed. Reactor Restarted
page: https://kanterella.com/05000370/LER-2D1990-2D008-2D04-2C_-3Aon_901227-2Cduring_Rod_Movement_Testing_Shutdown_Bank_E_Fell_Into_Core.Manual_Reactor_Trip_Initiated.Caused_by_Possible_Equipment_Failure.Te…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000370/LER-1990-008-04, :on 901227,during Rod Movement Testing Shutdown Bank E Fell Into Core.Manual Reactor Trip Initiated.Caused by Possible Equipment Failure.Technical Review Performed. Reactor Restarted

05000352/LER-1987-035, :on 870715,unexpected Actuation of Nssss Occurred.Caused by Personnel Error Since Scope of Work Performed & Procedures Followed Not Specific.Preventive Maint Program Revised
type: Subject
page: https://kanterella.com/05000352/LER-2D1987-2D035-2C_-3Aon_870715-2Cunexpected_Actuation_of_Nssss_Occurred.Caused_by_Personnel_Error_Since_Scope_of_Work_Performed_-26_Procedures_Followed_Not_Specific.P…
wiki namespace: 0
wiki page content language: en
cross cutting aspect: H.2(i)
wiki page sort key: 05000352/LER-1987-035, :on 870715,unexpected Actuation of Nssss Occurred.Caused by Personnel Error Since Scope of Work Performed & Procedures Followed Not Specific.Preventive Maint Program Revised

Cross cutting aspect
type: ObjectProperty
page: https://kanterella.com/Property-3ACross_cutting_aspect
wiki namespace: 102
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wiki page sort key: Cross cutting aspect