Pages that link to "NRC Form 368"
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The following pages link to NRC Form 368:
Displayed 50 items.
- 05000382/LER-1997-025, :on 971017,gag for Valve CC-835B Was Partially Engaged Restricting Valve to Approx 80% Open.Caused by Inadequate Work Instructions.Gag Was Completely Disengaged on Valve CC-835B (← links)
- 05000461/LER-1997-024, :on 970830,failure to Comply W/Ts Action Statement to Immediately Restore AC Power Sources Was Determined.Caused by Inadequate Interpretation of TS Action. Licensing Providing Staff Guidance (← links)
- 05000443/LER-1998-012, :on 981120,unanticipated Isolation of FWIVs Occurred.Caused by Personnel Error.Separate Individual Was Assigned in CR to Perform Oversight Duties During Latest Plant Heatup & Power Ascension.With (← links)
- BSEP-98-0228, :on 980708,excessive Feedwater Temperature Reduction as Result of Loss of Stator Cooling Water with Main Turbine,Was Determined.Caused by Failure to Analyze Worst Case Lfwh Transient.Databank Updated.With (← links)
- 05000281/LER-1986-003-03, :on 860216,turbine Tripped Due to High Level in Steam Generator B.Caused When Main Feedwater Bypass Valve B Failed to Close on Demand.Valve Failure Caused by Blockage in Air Pilot Relay.Blockage Dislodged (← links)
- 05000443/LER-1998-009, :on 980915,noted Incomplete Digital Channel Operation Tests (Dcots) for CR & Containment on-line Purge (COP) Rms.Caused by Development of Incomplete Sps.Revised COP Dcot Sps to Check Isolation Relays.With (← links)
- 05000298/LER-1997-004, :on 970506,RT Signal Esfa & Loss of Shutdown Cooling During Maint Activity Occurred.Caused by Personnel Error.Procedures Revised (← links)
- 05000155/LER-1978-034-03, /03L-0 on 780831:during Monthly Specific Gravity Readings on Reactor Depressurization Sys,Battery A,Cell 12 Read 1.193 Below Limit of 1.200 Specified in Tech Specs. Cause Unknown & Cell Was Replaced.(Encl to 7810060072) (← links)
- 05000369/LER-1997-007, :on 970514,Unit 1 RT Occurred During Power Range Nuclear Instrumentation Testing.Caused by Personnel Utilizing Inappropriate Procedure for Existing Plant Conditions.Reviewed Subject & Associated Procedures (← links)
- 05000266/LER-1997-013, :on 970304,CCWS Found Not in Accordance W/ Plant Design Basis.Caused by Inoperable Valve Due to Overtorquing in Closed position.Cross-tie Will Be Resolved (← links)
- 05000285/LER-1996-009, :on 961017,pressurizer Safety Valves as Found Lift Appeared to Be Outside Acceptance Criteria.Caused by Valve Bonnet Upper Temp Limits Not Specified in Test Procedure.Test Procedure Will Be Revised (← links)
- 05000382/LER-1995-005, :on 951102,calibration Input Data for Some Safety & non-safety Rosemount,Differential Pressure Type Flow & Level Transmitters Were in Error Due to Ineffective Review Process.Tar 95-022 Was Installed (← links)
- 05000382/LER-1996-001, :on 951107,TS 3.0.3 Entered Due to SIT Levels Reading High.Caused by Poor Work Practices.Cr Staff Immediately Lowered SIT Levels Until within Specified Range for Compliance W/Tss (← links)
- 05000213/LER-1996-008, :on 960418,removal of Floor Blocks Invalidated Internal Flooding Analysis.Caused by Failure to Establish Administrative Controls for Temporary Removal of Flood Barriers.Evaluated Effects of Flooding (← links)
- 05000461/LER-1996-020, :on 961223,failure of CR Drive Hydraulic Control Unit Air Line Occurred Due to Overtightening Fitting During Maintenance to Correct Air Leak.Broken Air Line Was Replaced in Accordance with Mwr D61669 (← links)
- 05000461/LER-1996-019, :on 961120,inadequate Surveillance Procedures Were Noted Due to Misinterpretation of TS Bases Results in Source Range Monitor Reactor Period Display Not Verified. Procedures CPS 9031.13 Will Be Revised (← links)
- 05000333/LER-1996-013-01, :on 961116,reactor Protection & Primary Containment Isolation Sys Actuation on False Low Reactor Water Level Occurred Due to Personnel Error.Instrument Surveillance Procedure Changed (← links)
- 05000282/LER-1992-017-01, :on 921230,component Cooling Water Pump 12 auto-started Due to Low Header Pressure.Caused by Failure of CR Operator to Use self-checking.Timely & Corrective Restoration Performed & Mgt Counseled (← links)
- 05000324/LER-1992-010-03, :on 921207,penetration Leakage Results Exceeded Allowable Limit During Local Leak Rate Testing,Due to Main Valve Disc Not Guiding Properly Into in-body Seat.Outboard MSIV Will Be Tested & Repaired (← links)
- 05000423/LER-1996-027-02, :on 960813,tornado Missile Protection for Manhole Covers Were Not Installed,Due to Original Construction.All Five Manhole Covers Were Securely Anchored by Placement of Ballast (← links)
- 05000301/LER-1996-001-01, :on 960518,reactor Trip Occurred Due to Spurious Closure of Turbine Stop Valves.Caused by Equipment Failure.Extensive Troubleshooting Performed,Valve Examined in Place,Removed & Replaced (← links)
- 05000416/LER-1996-004-03, :on 960606,manual Reactor Scram Occurred Due to Spurious Multiple SRV Lifts.Replaced Trip Unit Card in Addition to Functionally Checking Other Card Files in Same Panel (← links)
- 05000354/LER-1996-015, :on 960410,potential to Operate in Unanalyzed Condition Occurred.Caused by Original Design Calculation Deficiency.Appropriate Maximum UHS Temp Will Be re-evaluated (← links)
- 05000336/LER-1996-013-01, :on 960314,assessed Wide Range Logarithmic Neutron Flux Monitors Nuclear Instrumentation Channels A,B,C & D as Inoperable Due to Potential Susceptability to Common Mode Failure.Replaced Failed Power Supply (← links)
- 05000338/LER-1996-003, :on 960314,mode 3 Entry with Inoperable Redundant Heat Trace Circuit.Caused by Personnel Error.C/A: Redundant Heat Trace Replaced,Tested & Returned to Svc on 960315 (← links)
- 05000457/LER-1996-001-03, :on 960118,inadequate Control of Staged Roofing Matls Lead to Loss of Offsite Power Due to Loss of Both Unit 2 Station Auxiliary Transformers.Addressed Control of Staged Const Matls Onsite (← links)
- 05000354/LER-1995-032, :on 951114,failed to Complete Flood Protection Actions within Required Timeframe,Resulting in TS Violation Due to Low Mgt Priority Placed on Resolving Watertight Door Problems Properly.Watertight Door Repaired (← links)
- 05000339/LER-1995-004-03, :on 951111,automatic RT Occurred Due to Loss of B Control Rod Drive Sys Motor Generator Set.Entered Emergency Procedure E-0, RT & Si (← links)
- 05000339/LER-1995-003-03, :on 951106,containment Personnel Air Lock Outer Door Was Open & Uncapped.Caused by Failure of Individuals to Adhere to Set of Performance Stds for Implementing Work at Power Station.Disqualified Personnel Involved (← links)
- 05000483/LER-1995-005, :on 950816,RT Occurred Due to Turbine Trip at Greater than 50% Reactor Power Due to Loss of Condenser Vacuum.Replaced Pump Rheostat & Recalibr Transmitted for C-9 Loops & Main Turbine Trip Switches (← links)
- 05000362/LER-1984-024-01, :on 840611,spurious Penalty Factor from Control Element Assembly Calculator 1 Caused All Four Core Protection Calculators to Generate Low DNBR Trip Signals. Caused by Hardware Failure.Boards Replaced (← links)
- 05000266/LER-1995-005, :on 950416,CR Personnel Initiated Manual Reactor Trip When CR E11 Dropped Part Way Into Core During Troubleshooting Activities.Caused by Failed Stationary Gripper Coil.Coil Fuse Replaced (← links)
- 05000361/LER-1984-017, :on 840321,shutdown Cooling HX Flow Control Valve 2HV9316 Discovered Locked Fully Open.Caused by Disengaged Handwheel Clutch.Surveillance Position Revised to Verify Handwheel Engaged (← links)
- 05000458/LER-1995-001, :on 950125,ESG Actuation Occurred During Performance of Surveillance Test Procedure.Cause Could Not Be Determined.Isolation Had Been Reset & Steam Supply Valve Opened After Event (← links)
- 05000336/LER-1995-005, :on 950211,inadvertent Actuation of ESF Equipment Occurred.Caused by Wiring Error During Const of Cabinets Combined W/Plant Mod.Verified All Cabinets & Actuation Relay Wiring for Correct Polarity (← links)
- 05000423/LER-1995-002-02, :on 950209,radioactive Source Was Found Outside Protected Area in Uncontrolled Location.Caused by Radiological Inventory Control Oversight.Surveyed Potentially Involved Areas (← links)
- 05000348/LER-1995-002, :on 940424,main Control Board Annunciator Differential Flux Deviation Alert Inoperable.Caused by Personnel Failure to Ensure Plant Computer Updated. Annunciator Response Procedure Revised (← links)
- ML20078G699 (← links)
- ML20077H463 (← links)
- ML20073A010 (← links)
- 05000285/LER-1994-004, :on 940413,fire Damper Designed to Retain Halon in Cable Spread Room in Event of Fire Was Found Improperly Latched Open.Caused by Personnel Error.Corrective Actions: Event Consequences Related to Personnel (← links)
- 05000302/LER-1982-072-03, /03L-0:on 821125,determined Reactor Coolant Water Leaking to Nuclear Svcs Closed Cycle Cooling Sys Through Letdown Cooler B.Caused by Thermal Shock Due to Long Isolation During Rapid Restoration to Svc.Cooler Replaced (← links)
- 05000259/LER-1983-017-03, /03L-0:on 830322,diesel Generator 1D Declared Inoperable When Lube Oil Circulating Pump Motor Tripped Off. Trip Caused by 480-volt Motor Leads Shorting Out,Due to Breakdown of Insulating Tape.Wiring Replaced (← links)
- 05000446/LER-1994-002, :on 940106,DG 2-01 Tripped on Apparent Field Ground While Carrying Safety Bus Loads Due to Voltage Transient Attributed to Failure of Normal Voltage Regulator Card.Voltage Regulator Card Replaced (← links)
- 05000416/LER-1993-018, :on 931213,RCIC Steam Supply Isolation Occurred Due to Invalid Temp Signal.Caused by Failure of Equipment Room Differential Temp Switch.Faulty Switch Replaced.W/ (← links)
- ML20063M280 (← links)
- 05000353/LER-1993-010-02, :on 930909,notified That Stroke Time SR May Not Have Been Performed Prior to Declaring Containment Isolation Valve Operable on 930721 Due to Personnel Error.Valve Satisfactorily Tested on 930909 (← links)
- 05000285/LER-1993-017, :on 931116,time Delay Relays for Offsite Power Low Signal (Opls) Found Out of Tolerence Due to Inadequate Technical Review of Calibr Procedures for Opls Circuitry. Opls Calibr Procedures Revised (← links)
- 05000352/LER-1993-016, :on 931115,primary Crvics Actuation Caused Isolation of RWCU Sys Due to Leaking Pressure Relief Valve. Until Other Long Term C/As Evaluated,Relief Valve Will Be Included in Preventative Maint Program (← links)
- 05000412/LER-1993-009-01, :on 930902,failure to Calibr Radiation Monitor Velocity Probes Identified.Caused by Personnel Error.Maint Planning & Scheduling Sys Updated to Include Calibrations of Involved Velocity Probes (← links)