Pages that link to "H.2(i)"
← H.2(i)
Jump to navigation
Jump to search
The following pages link to H.2(i):
Displayed 50 items.
- ML23193A873 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 05000293/LER-1986-010, :on 860415,unplanned Isolation of Primary Containment Isolation Sys Occurred Resulting in Closure of Eight MSIVs & Main Steam Outboard Drain Drive.Root Cause Undetermined.Loose Connections Reworked (← links)
- 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 (← links)
- 05000302/LER-1989-030, :on 890826 Plant Shut Down Following 890824 Declaration of Pump RWP-2B Inoperability.On 890902 Subj Pump Failed Again When Tested After Silt Removal.Caused by Wrong Impeller in Pump.Subj Impeller Sent for Repair (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 05000344/LER-1989-017, :on 890809,reactor Tripped on Receiving One of Three Logic for Over Temp Delta Temp.Caused by Receipt of Spurious Signal.Three Channel 4 Over Temp Delta T Modules Replaced (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 05000267/LER-1988-009, :on 880506,reactor Scram on High Hot Reheat Temp Occurred Following Trip of Helium Circulator B.Caused by Malfunction of Analog Averaging Instrument in Overall Plant Control Sys.Calibr Method Revised (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 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 (← links)
- 05000412/LER-1989-014, :on 890506,supply Breaker to 480-volt Essential Bus J Opened,Deenergizing Bus & All Components Powered Off Bus & Actuating Leak Collection Ventilation Flowpath.Caused by Supply Breaker Trip.Breaker Reset (← links)