Pages that link to "05000339/LER-2005-001, Re Automatic Reactor Trip Due to Lightning Strike"
Jump to navigation
Jump to search
The following pages link to 05000339/LER-2005-001, Re Automatic Reactor Trip Due to Lightning Strike:
Displayed 3 items.
- 05000339/LER-2005-001 (redirect page) (← links)
- 05000339/LER-2001-002 (← links)
- 05000339/LER-2001-001 (← links)
- 05000339/LER-1982-037, Forwards LER 82-037/03L-0 (← links)
- 05000339/LER-1982-027, Forwards LER 82-027/03L-0 (← links)
- 05000339/LER-1982-036, Forwards LER 82-036/03L-0 (← links)
- 05000339/LER-1982-035, Forwards LER 82-035/03L-0 (← links)
- 05000339/LER-1982-025, Forwards LER 82-025/03L-0 (← links)
- 05000339/LER-1982-034, Forwards LER 82-034/03L-0 (← links)
- 05000339/LER-1982-033, Forwards LER 82-033/03L-0 (← links)
- 05000339/LER-1982-030, Forwards LER 82-030/03L-0 (← links)
- 05000339/LER-1982-032, Forwards LER 82-032/03L-0 (← links)
- 05000339/LER-1982-031, Forwards LER 82-031/03L-0 (← links)
- 05000339/LER-1982-029, Forwards LER 82-029/03L-0 (← links)
- 05000339/LER-1982-028, Forwards LER 82-028/03L-0 (← links)
- 05000339/LER-1982-026, Forwards LER 82-026/03L-0 (← links)
- 05000339/LER-1982-024, Forwards LER 82-024/03X-0 (← links)
- 05000339/LER-1982-022, Forwards LER 82-022/01T-0 (← links)
- 05000339/LER-1982-023, Forwards LER 82-023/03L-0 (← links)
- 05000339/LER-1982-021, Forwards LER 82-021/03L-0 (← links)
- 05000339/LER-1982-019, Forwards LER 82-019/03L-0 (← links)
- 05000339/LER-1982-007, Forwards LER 82-007/03L-0 (← links)
- 05000339/LER-1982-010, Forwards LER 82-010/03L-0 (← links)
- 05000339/LER-1982-020, Forwards LER 82-020/03L-0 (← links)
- 05000339/LER-1982-018, Forwards LER 82-018/03L-0 (← links)
- 05000339/LER-1982-065, Forwards LER 82-065/03L-0 (← links)
- 05000339/LER-1982-060, Forwards LER 82-060/03L-0 (← links)
- 05000339/LER-1982-062, Forwards LER 82-062/03L-0 (← links)
- 05000339/LER-1982-059, Forwards LER 82-059/03L-0 (← links)
- 05000339/LER-1983-006, Forwards LER 83-006/03L-0 (← links)
- 05000339/LER-1982-050, Forwards LER 82-050/03L-0 (← links)
- 05000339/LER-1982-052, Forwards LER 82-052/03L-0 (← links)
- 05000339/LER-1982-055, Forwards LER 82-055/01T-0 (← links)
- 05000339/LER-1982-044, Forwards LER 82-044/03L-0 (← links)
- 05000339/LER-1982-049, Forwards LER 82-049/03L-0 (← links)
- 05000339/LER-1982-048, Forwards LER 82-048/03L-0 (← links)
- 05000339/LER-1981-007, Forwards LER 81-007/03L-0 (← links)
- 05000339/LER-1982-041, Forwards LER 82-041/03L-0 (← links)
- 05000339/LER-1982-039, Forwards LER 82-039/03L-0 (← links)
- 05000339/LER-1982-040, Forwards LER 82-040/03L-0 (← links)
- 05000339/LER-1982-042, Forwards LER 82-042/03L-0 (← links)
- 05000339/LER-1982-046, Forwards LER 82-046/03L-0 (← links)
- 05000339/LER-1982-045, Forwards LER 82-045/03L-0 (← links)
- 05000339/LER-1982-047, Forwards LER 82-047/03L-0 (← links)
- 05000339/LER-1982-038, Forwards LER 82-038/03L-0 (← links)
- 05000339/LER-1983-001, Forwards LER 83-001/03L-0 (← links)
- 05000339/LER-1983-012, Forwards LER 83-012/03L-0 (← links)
- 05000339/LER-1983-014, Forwards LER 83-014/03L-0 (← links)
- 05000339/LER-1983-009, Forwards LER 83-009/03L-0 (← links)
- 05000339/LER-1983-013, Forwards LER 83-013/03L-0 (← links)
- 05000339/LER-1983-005, Forwards LER 83-005/03L-0 (← links)
- 05000339/LER-1983-010, Forwards LER 83-010/03L-0 (← links)
- 05000339/LER-1982-086, Forwards LER 82-086/03L-0 (← links)
- 05000339/LER-1982-076, Forwards LER 82-076/03L-0 (← links)
- 05000339/LER-1982-082, Forwards LER 82-082/03L-0 (← links)
- 05000339/LER-1982-080, Forwards LER 82-080/03L-0 (← links)
- 05000339/LER-1982-078, Forwards LER 82-078/03L-0 (← links)
- 05000339/LER-1982-079, Forwards LER 82-079/03L-0 (← links)
- 05000339/LER-1982-081, Forwards LER 82-081/03L-0 (← links)
- 05000339/LER-1982-075, Forwards LER 82-075/03L-0 (← links)
- 05000339/LER-1982-077, Forwards LER 82-077/01T-0 (← links)
- 05000339/LER-1982-074, Forwards LER 82-074/03L-0 (← links)
- 05000339/LER-1982-072, Forwards LER 82-072/03L-0 (← links)
- 05000339/LER-1982-073, Forwards LER 82-073/03L-0 (← links)
- 05000339/LER-1983-026, Forwards LER 83-026/03L-0 (← links)
- 05000339/LER-1983-025, Forwards LER 83-025/03L-0 (← links)
- 05000339/LER-1982-063, Forwards LER 82-063/03L-0 (← links)
- 05000339/LER-1983-007, Forwards LER 83-007/03L-0 (← links)
- 05000339/LER-1983-017, Forwards LER 83-017/03L-0 (← links)
- 05000339/LER-1982-070, Forwards LER 82-070/03L-0 (← links)
- 05000339/LER-1982-069, Forwards LER 82-069/03L-0 (← links)
- 05000339/LER-1982-066, Forwards LER 82-066/03L-0 (← links)
- 05000339/LER-1995-002, Forwards LER 95-002 Re Missed Surveillance on Individual Rod Position Indication (← links)
- 05000339/LER-1983-004, Forwards LER 83-004/03L-0 (← links)
- 05000339/LER-1983-003, Forwards LER 83-003/03L-0 (← links)
- 05000339/LER-1995-001, Forwards LER 95-001 Re Main Steam & Pressurizer Safety Valve Setpoints Out of Tolerance Due to Setpoint Drift (← links)
- 05000339/LER-1983-031, Forwards LER 83-031/03L-0 (← links)
- 05000339/LER-1983-023, Forwards LER 83-023/03L-0 (← links)
- 05000339/LER-1983-030, Forwards LER 83-030/03L-0 (← links)
- 05000339/LER-1983-028, Forwards LER 83-028/03L-0 (← links)
- 05000339/LER-1983-027, Forwards LER 83-027/03L-0 (← links)
- 05000339/LER-1983-024, Forwards LER 83-024/03L-0 (← links)
- 05000339/LER-1983-020, Forwards LER 83-020/03L-0 (← links)
- 05000339/LER-1983-019, Forwards LER 83-019/03L-0 (← links)
- 05000339/LER-1983-021, Forwards LER 83-021/03L-0 (← links)
- 05000339/LER-1983-022, Forwards LER 83-022/03L-0 (← links)
- 05000339/LER-1983-018, Forwards LER 83-018/03L-0 (← links)
- 05000339/LER-1983-015, Forwards LER 83-015/03L-0 (← links)
- 05000339/LER-1982-061, Forwards LER 82-061/03L-0 (← links)
- 05000339/LER-1998-004, Forwards LER 98-004-00,IAW 10CFR50.73.Commitments Made by Util,Listed (← links)
- 05000339/LER-1982-067, Forwards Updated LER 82-067/03X-1 (← links)
- 05000339/LER-1982-043, Forwards Updated LER 82-043/03X-1 (← links)
- 05000339/LER-1998-001, Forwards LER 98-001-00,reviewed by Station Nuclear Safety Operating Committee & Will Be Forwarded to Mgt Safety Review Committee for Review (← links)
- 05000339/LER-1989-003, Advises of Change in Reportability for LER 89-003-00 Re 10 Containment Isolation Valves W/Excessive Leak Rates (← links)
- 05000339/LER-1998-002, Forwards LER 98-002-00,applicable to North Anna Unit 2.Rept Has Been Reviewed by Station Nuclear Safety Operating Committee & Will Be Forwarded to Mgt Safety Review Committee for Review (← links)
- 05000339/LER-2024-001-01, Loss of Generator Field for 2J Eog During 2-PT-82.28 (← links)
- 05000339/LER-2024-001, Loss of Generator Field for 2J EDG During 2-PT-82.28 (← links)
- 05000339/LER-2023-001, Reactor Coolant Pressure Boundary Leak Due to Poor Weld Workmanship (← links)
- 05000339/LER-1989-008-01, :on 890806,ESF Valve 2-RS-MOV-201B Closed Inadvertently During Initial Performance of 2-PT-36.5.3A. Caused by Misidentification of Interlock for 2-RS-MOV-201B. Tech Spec 3.0.3 Entered & Deviation Rept Done (← links)
- 05000339/LER-1989-004-02, :on 890502,unexpected Automatic Reactor Trip Signal Generated During Performance of ICP-FW-2-F-2486. Caused by Procedure Inadequacy.Instrument Dept Procedures Will Be Reviewed & Revised (← links)
- 05000339/LER-1989-005, :on 890314,main Steam Safety Valves Setpoints Out of Tolerance Per Tech Specs 3.7.1.1.Cause Undetermined. Valves Refurbished & Retested Until Setpoint within Allowable Tech Specs (← links)
- 05000339/LER-1989-008-02, :on 890806,ESF Valve 2-RS-MOV-201B Inadvertently Closed During on-line Slave Relay Testing. Caused by Incorrect Interlock Identification for Valve.Valve Opened Following Testing of Slave Relay K645 (← 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)
- 05000339/LER-1989-007-02, :on 890403,component Cooling Flow Lost to Both RHR Hxs,Causing Supply Valves to Close & Loss of RHR Cooling Capacity.Caused by Painter Brushing Against Supply Isolation Valve.Instrument Air Restored (← links)
- 05000339/LER-1989-005-02, :on 890314,main Steam Safety Valve (MSSV) Setpoints Out of Tolerance Allowed by Tech Spec 3.7.1.1. Cause Not Determined.Mssv Refurbished & Retested to Ensure Pressures within Allowable Limit (← links)
- 05000339/LER-1987-015-02, :on 871104,steam Generator a Steam Flow Channel III Determined Inoperable.Caused by Installation Error in Field Wiring.Leads Reversed & Readings Returned to Normal (← links)
- 05000339/LER-1987-017-02, :on 871103,nuclear Instrument Detector Channel N-44 Not Placed in Trip within 1 H After Entering Mode 2. Caused by Procedure Inadequacy.Procedure Revised (← links)
- 05000339/LER-1987-014-02, :on 871022,accumulator Tank Inadvertently Injected Borated Water Into Rcs.Caused by Personnel Error. Administrative Procedure 5.8 Will Be Revised & Event Will Be Reviewed W/Operations Personnel (← links)
- 05000339/LER-1987-016-02, :on 871031,inadvertent Reactor Protection Sys Reactor Trip Signal Generated During Auxiliary Feedwater Pump Time Response & Logic Test.Caused by Procedural Inadequacy.Procedures Revised (← links)
- 05000339/LER-1987-013-02, :on 871026,inadvertent ESF Actuation Occurred During Performance of Valve Inservice Insp When Wrong Valve Opened.Caused by Failure to Follow Procedure & Personnel Error.Operator Closed Valve (← links)
- 05000339/LER-1987-007-02, :on 870708,discovered That Low Pressure CO2- Total Flooding Zones Surveillance Test (2-PT-102.1) Not Performed Satisfactorily Since 870128.Caused by Inadequate Scheduling Controls.Test Replaced (← links)
- 05000339/LER-1987-010-02, :on 870921,containment Air Lock Doors Found to Be Open During Control Rod Latching.Caused by Procedure Inadequacy & Personnel Error.Refueling Master & Subprocedures Will Be Revised (← links)
- 05000339/LER-1987-011-02, :on 870916,surveillance Tests for Obtaining Bearing Temps on Quench Spray Pumps a & B Not Performed. Caused by Inadequate Scheduling Controls.Tests Placed on Periodic Test Scheduling Sys (← links)
- 05000339/LER-1987-012-02, :on 870831,Type C Local Leak Rate Testing Revealed Three Containment Isolation Valves Had Unacceptable as-found Leak Rates.Caused by Seating Surface Degradation. Valve Seats Will Be Replaced or Lapped (← links)
- 05000339/LER-1987-008-02, :on 870913 & 15,pressurizer Code Safety Valves as Found Set Pressures Found to Be Out of Tolerance.Cause Unknown.Valves Readjusted & Repaired to within Correct Setpoint Tolerance Allowed by Tech Spec 3.4.3 (← links)
- 05000339/LER-1987-006-02, :on 870824,reactor Trip Occurred Due to Intermediate Range High Neutron Flux Level Signal.Caused by Failing Intermediate Range Neutron Detector.Detector Will Be Replaced During Present Refueling Outage (← links)
- 05000339/LER-1987-005-02, :on 870601,unit Entered Mode 3 from Mode 4 W/All Auxiliary Feedwater Pumps Inoperable.Caused by Personnel Error.Root Cause & Corrective Action Evaluated by Human Performance & Evaluation Sys (← links)
- 05000339/LER-1998-001-02, :on 980405,manual Reactor Trip Was Declared Inoperable Due to Control Bank B Group Step Counter.Caused by Malfunction of Mechanical Drive.Ts Action Statement 3.1.3.3 Initiated (← links)
- 05000339/LER-1999-002-03, :on 990922,containment Liner Through Wall Defect Was Noted.Caused by Corrosion.Pressure Test Was Performed.With (← links)
- 05000339/LER-1999-001-03, :on 990915,failure to Lock Open Loop SV Breakers as Intended by TSs Was Noted.Caused by Failure to Update Operating Procedures.Procedure ARs Were Initiated & Approved for Maint Procedure 1/2-MOP-5.92.With (← links)
- 05000339/LER-1998-002-02, :on 980411,average of as Found Setpoints for Three Pressurizer Safety Valves Exceeded Setpoint Tolerance Allowed by TS 3.4.3.1.Caused by Setpoint Drift.Pressurizer Safety Valves Disassembled,Inspected & Repaired (← links)
- 05000339/LER-1986-001-01, :on 860221,eight Main Steam Line Code Safety Valves on Unit 2 Declared Inoperable After Failing Functional Testing.Cause Unknown.All Main Steam Safety Valves Returned to Operable Status (← links)
- 05000339/LER-1986-010, :on 860804,while Performing Periodic Test, Discovered Unidentified RCS Leakage & Rampdown Initiated on 860805.Unit 2 Entered Mode 4 from Mode 5 on 860811 Following Shutdown Due to High RCS Unidentified Leakage (← links)
- 05000339/LER-1987-004-02, :on 870522,steam Generator Gross Activity Surveillance of Tech Spec 3.7.1.4,scheduled for 870520, Discovered Not Performed.Caused by Personnel Error & Inadequate Procedures.Policy Revised (← links)
- 05000339/LER-1986-011-03, :on 860919,discovered That Channel Checks for Narrow Range Reactor Containment Sump Level Indicators Not Performed as Required.Caused by Personnel Error.Procedure Deviation Submitted (← links)
- 05000339/LER-1986-010-03, :on 860804,05 & 11,unidentified RCS Leakage Exceeded Tech Spec 3.4.6.2 Requirement of 1 Gpm.Caused by Leakage at Primary Sys Valves,Reactor Coolant Pump Seals & Sources Listed in Table 1.Equipment Repaired (← links)
- 05000339/LER-1987-001-02, :on 870203,load Limit Setting on Emergency Diesel Generator 2H Determined to Be Incorrect.On 870206, Emergency Diesel Generator 2J Load Setting Also Incorrect. Caused by Failure to Follow Procedure (← links)
- 05000339/LER-1986-006, :on 860416,discovered Specific Gravities of Battery Cells on 3 of 4 Dc Busses Below Min.Caused by Failure to Correct Specific Gravities to Full Electrolyte Level.Administrative Procedure Revised (← links)
- 05000339/LER-1986-001-03, :on 860221,eight Main Steam Line Code Safety Valves Declared Inoperable After Failing Functional Testing. Cause Undetermined.Valves Reset by Wyle Labs.Lab Investigating Failures (← links)
- 05000339/LER-1986-005-02, :on 860529,reactor Trip Occurred from Negative Flux Rate Trip Due to Opening of Stationary Coil Power Supply Disconnect Switch.Caused by Physical Agitation Due to Personnel Painting.Switches Secured Closed (← links)
- 05000339/LER-1986-006-02, :on 860416,determined That Specific Gravities of Various Battery Cells on Dc Busses Below Tech Spec Min. Exide Corp Determined Batteries Meet Vendor Requirements. Addl Investigation in Progress (← links)
- 05000339/LER-1986-008-01, :on 860411,reactor Trip Occurred Due to Turbine Trip.Caused by Actuation of Generator Differential Lockout Relay.Exciter Bearing & Permanent Magnet Generator Replaced (← links)
- 05000339/LER-1986-004, :on 860314,while in Mode 6 (Refueling), Surveillance Requirements for Inspecting Accessible Snubbers Exceeded.Caused by Failure of Computer Program to Interpret Signal.Corrective Actions Underway (← links)
- 05000339/LER-1986-009-02, :on 860629,reactor Trip Occurred Due to Low Steam Generator Level Coincident W/Steam Flow/Feed Flow Mismatch.Caused by Loss of Power to One of Two 500-kV Switchyard Buses.Evaluation Underway (← links)
- 05000339/LER-1986-007-01, :on 860416,trip Occurred During Throttle valve- Governor Valve Transfer.Caused by Turbine First Stage Pressure Spike.Investigation of Electro Hydraulic Control Sys Underway (← links)
- 05000339/LER-1987-018-02, :on 871221,inadvertent Emergency Diesel Generator (EDG) Start Occurred During Testing.Caused by Personnel Error.Periodic Test Terminated & EDG Secured & Returned to Normal Standby Status (← links)
- 05000339/LER-1988-001-03, :on 881104,steam Driven Auxiliary Feedwater Pump Inadvertently Started While Being Removed from Svc for Preplanned Maint.Caused by Personnel Error.Steam Supply Isolated.Human Performance Evaluation Underway (← links)
- 05000339/LER-1988-004-02, :on 880520,emergency Diesel Generator 2H Determined Inoperable While Emergency Diesel Generator 2J Svc for Preplanned Maint.Caused by Breaker 25H2 Failed to Closing Springs Not Being Charged (← links)
- 05000339/LER-1986-004-03, :on 860314,surveillance Requirements for Inspecting Accessible Snubbers Exceeded.Caused by Error in Periodic Test Scheduling Sys Computer Program.Snubbers Inspected.Program Revised (← links)
- 05000339/LER-1988-003, :on 880504,inadvertent Partial Train B ESF Actuation of Containment Depressurization Sys Occurred. Caused by Introduction of Ground Into Solid State Protection Sys.Procedures Will Be Reviewed (← links)
- 05000339/LER-1998-004-02, :on 980917,reactor Trip Was Noted.Caused by Lightning Strike.Operations Emergency Procedure 2-E-0, RT or SI Was Entered (← links)
- 05000339/LER-1998-003-01, :on 980424,multiple Failures Occurred During Functional Testing of RCS Large Bore Snubbers.Cause Unknown. Large Bore Snubbers Replaced.With (← links)
- 05000339/LER-1988-004, :on 880520,determined That Emergency Diesel Generator 2H Had Been Inoperable While Emergency Diesel Generator 2J Was Out of Svc for Preplanned Maint.Caused by Failure of Breaker.Maint Procedure Revised (← links)
- 05000339/LER-1988-019, :on 880407,surveillance Test for Steam Generator Surface Sample Line Outside Containment Isolation Valve Not Performed within Interval Allowed by Tech Specs. Caused by Personnel Error.Program Modified (← links)
- 05000339/LER-1988-002-03, :on 880726,high Head Safety Injection Pump 2-CH-P-1A Was Inadvertently Started During Undervoltage Periodic Test on Emergency Bus 2J.Caused by Closed Contacts of Undervoltage Relay.Tests Will Be Revised (← links)
- 05000339/LER-1982-067-03, Steam Generator C Narrow Range Channel 2 Indicated High.Caused by Failure of Transmitter Amplifier Card.Card Replaced & Loop Recalibr (← links)
- 05000339/LER-1987-012, :on 870831,three Valves Failed Type C Local Leak Rate Testing.Caused by Incorrect Testing Methods & Seating Surface degradation.Air-operated Valve Retested Correctly & Check Valve Cleaned & Relapped (← links)
- 05000339/LER-1986-002-02, :on 860220,during Mode 3,reactor Tripped on source-range Neutron Detectors N-35 & N-36 High Flux.Cause Unstated.Detectors Returned to Svc.Investigation Continuing (← links)
- 05000339/LER-1984-013-03, :on 841207 & 09,emergency Diesel Generators 2J & 2H Tripped,Respectively.Facility Shut Down.Cause Not Stated.Maint Performed.Both Emergency Diesel Generators Restored to Operable Status (← links)
- 05000339/LER-1985-010-03, :on 851008,emergency Diesel Generator (EDG) 2H Removed from Svc for Maint.During Startup on 851010,EDG Tripped on High Crackcase Pressure.Caused by Cylinder & Piston Damage.Assemblies Replaced (← links)
- 05000339/LER-1986-003-02, :on 860303,breach of Security Discovered Creating Potential for Unauthorized Entry Into Main Steam Valve House.Caused by Removal of 10-inch Discharge Line Into 16-inch Pipe for Maint.Watch Posted (← links)
- 05000339/LER-1997-001-02, :on 970314,reactor Vessel Level Dynamic Range Indication on a Train Declared Inoperable.Caused by Procedural Error.Revised Calibr Procedures,Normalized a & B Trains & Returned Train to Service (← links)
- 05000339/LER-1985-008-02, :on 850725,increased RCS Leakage Occurred. Caused by 2-inch Valve Packing Leak Off RCS Loop A.Maint Performed to Stop Leak (← links)
- 05000339/LER-1996-003-03, :on 961112,automatic Reactor Trip Resulting from Main Generator Stator Coil Failed Due to Personnel Error.Cause of Reactor Trip Has Been Determined to Be Failed Generator Stator Coil (← links)
- 05000339/LER-1985-009-01, :on 850822,ltr Specifying Completion of License Condition 2.C(18) During 1983 Inservice Insp Not Signed on 850821 & NRC Not Notified of Completion within Specified 5-yr Period.Caused by Personnel Error (← links)
- 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 (← links)
- 05000339/LER-1996-002-03, :on 960908,discovered FW Check Valve Had Excessive Leakage.Caused by Lack of Complete Disc to Seat Contact.Valves 2-FW-62 & 2-FW-94 Declared Inoperable.W/ (← links)
- 05000339/LER-1992-007-03, :on 920806,MS Trip Valve Failed Causing Reactor Trip & Safety Injection Due to Failure of Ms Trip Valve Air Cylinder Rupture Disc.Rupture Discs on Ms Trip Valve C Replaced (← links)
- 05000339/LER-1992-009-03, :on 921218,missed Surveillance Occurred When Daily Calorimetric Periodic Test Not Performed within 24 H, Due to Personnel Error.Review Will Be Presented During Requalification Program (← links)
- 05000339/LER-1992-016, :on 920813,condenser Air Ejector Discharge Containment Isolation Trip Valve Failed to Stroke.Caused by Failure to Reset Ejector on 920806.Ejector Reset,Valves Restroked & Procedure Revised (← links)
- 05000339/LER-1985-006-01, :on 850426,unit Tripped from 100% Power When 120-volt Ac Vital Bus 2-I Inadvertently Deenergized.Caused by Misidentification of Power Supply Cabinet & Subsequent Opening of Power Supply Breaker to Inverter (← links)
- 05000339/LER-1985-005, :on 850323,reactor Manually Tripped Due to Shutdown & Control Banks Dropping Into Core Concurrent W/Partial Loss of Control Room Lighting.Caused by Power Loss Due to Switchyard Transformer 5 Fault (← links)
- 05000339/LER-1984-011, :on 841019,20,22,1102,1203,07,11 & 850113, Emergency Diesel Generator 2H Tripped.Cause Under Investigation.Tech Spec Change Requested to Test Generators in Manner More Consistent W/Mfg Recommendation (← links)
- 05000339/LER-1985-004-01, :on 850318,forced Unit Rampdown from 100% Power Occurred.Caused by Inoperable Emergency Diesel Generator 2J Which Tripped on High Crankcase Pressure & Removed from Svc.Emergency Generator Repaired (← links)
- 05000339/LER-1984-008, :on 841016,complete Loss of RHR Capability Occurred When Both RHR Pumps Inoperable Due to Introduction of Air Into RHR Sys.Caused by Isolation Valve Clogging During Drain Down (← links)
- 05000339/LER-1996-001-03, :on 960516,potential Unfiltered Release Path from Quench Spray Pump House to Environ.Caused by Personnel Error.Ts 3.0.3 Action Was Cleared Prior to Reducing Power (← links)
- 05000339/LER-1984-011-01, :on 841019,while Running Emergency Diesel Generator 2H for 24 H Surveillance Test,Diesel Tripped on High Jacket Coolant Temp.Temp Switch Calibr & Diesel Started for Troubleshooting (← links)
- 05000339/LER-1984-012-02, Has Been Canceled (← links)
- 05000339/LER-1984-007-03, :on 840916,smoke Detector Located in Control Room Emergency Air Supply Determined Inoperable.Cause Not Stated.Fire Watch Established.Detector Replaced on 841026 (← links)
- 05000339/LER-1984-007-02, :on 840916,discovered Smoke Detector in Control Room Emergency Air Supply Failed to Operate as Required. Caused Not Stated.Fire Watch Placed in Effect During Inoperability.Detector Replaced (← links)
- 05000339/LER-1985-001-01, :on 850104,smoke Detector in Emergency Switchgear Room Emergency Air Supply Found to Be Technically Inoperable from 841001-1101.Caused by Personnel Error.Fire Watch Established (← links)
- 05000339/LER-1992-015, :on 920621,hi Hydrogen Main Control Room Annunicator for Containment Analyzer Discovered Inoperable & Local Panel Incorrectly Wired.Caused by Personnel Error. Relay Correctly Wired & Test Results Verified (← links)
- 05000339/LER-1985-002, :on 850117,communication Links Between Facility & NRC Found to Be Functionally Tested on 3-month Frequency Instead of Monthly.Caused by Conflict Between Emergency Plan & 10CFR50,App E Requirements (← links)
- 05000339/LER-1985-003-01, :on 841029,while in Mode 4,Train a UV Output Card Failed During Testing.Caused by Shorted Transistors. Procedures Will Be Checked to Verify Testing Sequences to Minimize Possibility of Failure (← links)
- 05000339/LER-1984-010-01, :on 841101,accumulator Isolation Valves a & B Inadvertently Opened When Breakers Energized.Caused by Solid Protection Sys Slave Relay in Deenergized State.Relay Actuated Into Correct Position (← links)
- 05000339/LER-1984-009-03, :on 841025,81,250 Gallons Borated Water Discharged from Casing Cooling Tank Into Recirculation Spray Pump Sump.Caused by Inadvertent Opening of Casing Cooling Line Isolation Valve (← links)
- 05000339/LER-1984-011-02, :on 841019 & 22,emergency Diesel Generator 2H Tripped on High Jacket Coolant Temp.Following Calibr of Temp Switch,Diesel Tripped on High Crankcase Pressure on 841102. Caused by Spurious Instrumentation Problems (← links)
- 05000339/LER-1984-008-03, :on 841016,complete Loss of RHR Capability Occurred & Both RHR Pumps Unable to Operate Due to Air in RHR Sys.Caused by Isolation Valve Becoming Clogged.Valve Repaired (← links)
- 05000339/LER-1992-013, :on 920421,inoperable Overpower Differential Temp Setpoint Channel Not Placed in Trip within 1 H After Entering Mode 2.Caused by Personnel Error.Channel Test Card Replaced & Calibr & Channel Taken Out of Trip (← links)
- 05000339/LER-1992-011, :on 920421,unit Entered Mode 3 from Mode 4 Due to SG Channel II Trip.Caused by Personnel Error Due to Failure to Consult Applicable Ts.Channel Returned to Tripped Condition.Ts Change Package Will Be Submitted (← links)
- 05000339/LER-1992-012, :on 920419,2H 4160-volt Emergency Bus Became de-energized During Response Time Testing of Circuitry & SW Flow to Component Cooling HX Was Lost Momentarily.Bus Was re-energized & SW Flow Was Restored (← links)
- 05000339/LER-1992-010, :on 920413,determined That as-found Cold Leg Branch Flows Insufficient to Meet TS Requirements.Probably Caused by Repositioning of Valves Using Stem Height Measurement.Stem Lock Covers Installed (← 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-1992-006-01, :on 920322,high Radiation Area Barrier on 262 Ft Elevation of Reactor Containment Discovered Unlocked During Fuel Movement.Caused by Personnel Error.High Radiation Door Locked & Barriers Secured (← 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)
- 05000339/LER-1992-003-02, :on 920306,as-found Set Pressures for Three Pressurizer Safety Valves & 8 of 15 MSSV Found Outside of TS Setpoint Tolerances.Caused by Setpoint Drift.Pressurizer Loop Seal Modified & Setpoint May Be Increased (← links)
- 05000339/LER-1992-002-02, :on 920229,inadvertent ESF Actuation Occurred During CDA Functional Test Due to Failure of Ssps Slave Relay Latch Mechanism.Cda Functional Test Procedures Will Be Revised (← links)
- 05000339/LER-1995-001-01, :on 950403,MS Pressurizer Safety Valve Setpoints Out of Tolerance Due to Setpoint Drift.Repaired MSSVs (← links)
- 05000339/LER-1992-001-02, :on 920129,main Feed Regulating Valve C Closed Due to Driver Card Failure,Resulting in Reactor Trip.Caused by Failed Power Supply on Driver Card.Card Replaced.W/ (← links)
- 05000339/LER-1984-004-02, :on 840308,at 100% Power,Thermal Overload Devices on safety-related Motor Operated Valves Not Calibr Per Tech Specs.Caused by Personnel Error.Calibr Verification Procedure Implemented (← links)
- 05000339/LER-1991-011-02, :on 911103,plant Shutdown Required by Technical Specifications Due to RHR Valve Packing Failure.Caused by Failure of Packing RHR Sys Inlet Isolation Motor Operated Valve.Valve Packing Repaired (← links)
- 05000339/LER-1992-005-01, :on 920311,steam Generator Tube Defects Discovered.Caused by Primary Water SCC & SCC Originating in Outside Diameter of Tube (Odscc).Defective Tubes Plugged & Removed from Svc (← links)
- 05000339/LER-1984-003-03, :on 840505,facility Taken off-line to Perform Preventative Maint & Testing on Reactor Trip Breakers.Minor Problems Discovered.Facility Placed Back on-line on 840508 (← links)
- 05000339/LER-1992-004-01, On 920313,determined That D CRD Mechanism Cooling Fan Timer Drifted Outside Setpoint Limit.Caused by Setpoint Drift.Timer Was Reset & Tested (← links)
- 05000339/LER-1984-002-03, :on 840505,reactor Tripped Manually After Receiving Automatic Turbine Trip Signal & Loss of Normal Feedwater.Caused by High Water Level in Feedwater Heater 5B. Module Recalibr & Channel Returned to Svc (← links)
- 05000339/LER-1984-005-03, :on 840625,air Supply Line to Steam Generator a Main Feedwater Control Valve Failed,Causing Valve to Fail Shut & Resulting in Reactor Trip 13 Later.Air Lines Replaced (← links)
- 05000339/LER-1984-006-02, :on 840608,fire Detection Sys for Emergency Switchgear Room Removed from Svc to Add Smoke Detectors. Sys Returned to Svc on 840628,resulting in Sys Remaining Out of Svc Greater than 14 Days (← links)
- 05000339/LER-1984-001-03, :on 840313,reactor trip-turbine Trip Occurred. Caused by Closure of Main Feed Regulating Valve a Due to Instantaneous Loss of Power to Steam Generator a Feedwater Control Sys Cards in Process Rack 6 (← links)
- 05000339/LER-1995-002-03, :on 950709,missed Surveillance on Individual Rod Position Indication Due to Personnel Error.Returned Both Computer Points D-H2 & D-H8 from Calibr Mode (← links)
- 05000339/LER-1983-074-03, /03L-0:on 831229,outer Personnel Hatch Door Determined to Have Unacceptable Leak Rate.Caused by Dirt Buildup on Seal.Seal Cleaned,Relubricated & Tested Satisfactorily (← links)
- 05000339/LER-1983-080-03, /03L-0:on 831221,individual Rod Position Indicator for Rod C-09 Deviated from Group Demand Position by Greater than 12 Steps.Caused by Instrument Drift.Channel Properly Recalibr & Returned to Svc (← links)
- 05000339/LER-1983-069-03, /03L-0:on 830913,individual Rod Position Indicator for Rod K-02 in Control Bank a Exceeded Zero Step Position by 133 Steps.Caused by Personnel Error.Indicator Adjusted (← links)
- 05000339/LER-1983-051-03, /03L-0:on 830627 & 0702,RCS Subcoolant Margin Monitor a Failed to Operate Correctly.Cause on 830627 Due to Failed Low Level Data Board & on 830702 Due to Failed Computation Board.Monitor Will Be Relocated (← links)
- 05000339/LER-1991-009-03, :on 910920,main Feed Regulating Valve B Closed Due to Driver Card Failure,Causing Reactor Trip & Safety Injection.Caused by Malfunction of Steam Dump Control Sys. Driver Card Replaced & Signal Reset (← links)
- 05000339/LER-1983-052-03, /03L-0:on 830628,individual Rod Position Indication for Channels F-04,D-10 & M-04 Deviated from Group Demand Position by Greater than 12 Steps.Caused by Instrument Drift.Channels Recalibr (← links)
- 05000339/LER-1983-004-03, /03L-0:on 830105,casing Cooling Pump B Removed from Svc.Caused by Need to Repair Small Leak in Discharge Flange of Pump.Repair Made & Pump Returned to Svc (← links)
- 05000339/LER-1983-003-03, /03L-0:on 830104,middle Level Corner Support Temp for Steam Generator a Indicated Less than 225 F for 12 H. Caused by Condensation Due to High Secondary Steam Leakage from body-to-bonnet Leak of Blowdown Isolation Valve (← links)
- 05000339/LER-1983-072-03, /03L-0:on 831205,low Head Safety Injection Pump Containment Suction Valve MOV-2860A Failed to Open Fully During Surveillance Testing.Caused by Placement of Electrical Cord on Valve Stem Extension (← links)
- 05000339/LER-1983-079-03, /03L-0:on 831211,pressurizer Level Indication Channel II LI-2460 Failed Low.Caused by Failure of Power Supply Card LI-2460.Card Replaced & Channel Calibr Satisfactorily (← links)
- 05000339/LER-1983-077-03, /03L-0:on 831120,fire Damper in Safeguards Ventilation Sys Found Failed in Closed Position.Caused by Failed Fire Damper Fusible Link.Link Replaced & Fire Damper Restored to Operable Status (← links)
- 05000339/LER-1991-008-03, :on 910905,discovered That Five Fuses,Which Provide Secondary Protection for Pressurizer Heater Electrical Penetrations,Failed to Meet Acceptance Criteria on 910829.Fuses Replaced & Records Reviewed (← links)
- 05000339/LER-1991-006-03, :on 910905,determined That One of Three Timer Actuation Relays Used in Emergency Bus 2J Degraded Voltage Circuit Failed During Testing.Caused by Continuous Energization.Electrical Jumpers Installed (← links)
- 05000339/LER-1983-078-03, /03L-0:on 831122,while Performing Leak Test on Hatch Escape Lock,Determined Outer Door Had Unacceptable Leak Rate.Caused by Dried Seal Grease.Door Seals Lubricated & Door Hinge Adjusted (← links)
- 05000339/LER-1983-076-03, /03L-0:on 831121,discovered That Leakage Surveillance Test on Containment Personnel Air Lock Not Performed within Allowable 6-month Interval.Caused by Personnel Error.Test Performed on 831122 (← links)
- 05000339/LER-1995-001-03, :on 950403,MS & Pressurizer Safety Valve Setpoints Out of Tolerance Due to Setpoint Drift. Refurbished & Retested Safety Valves to within Allowable Limits of TS at Wyle Labs (← links)
- 05000339/LER-1991-005-03, :on 910814,determined That Degraded Voltage Relay Time Delay Setpoint Outside Tech Spec Limit.Caused by Personnel Error.Relay Reset & Successfully Tested (← links)
- 05000339/LER-1983-075-03, /03L-0:on 831112,solid State Protection Sys Train a Stop Valve Generator Trip Logic Failed to Meet Acceptance Criteria.Caused by Faulty Universal Card.Card Replaced & Logic Channel Returned to Svc After Calibr (← links)
- 05000339/LER-1983-073-03, /03L-0:on 831107 & 14,w/unit in Mode 1 at 100% Power,Inner Personnel Hatch Door Found to Have Unacceptable Leak Rate,Contrary to Tech Spec 3.6.1.3.Caused by Dirty Door Seals Due to Multiple Containment Entries (← links)
- 05000339/LER-1983-071-03, /03L-0:on 831017,control Room Bottled Air Pressurization Sys Fell Below Tech Spec Limit.Caused by Inadvertent Train B Safety Injection.Safety Injection Reset & Sys Repressurized (← links)
- 05000339/LER-1991-004-03, :on 910603,reactor Vessel Head Vent Valve Not Verified Locked in Open Position Following 1989 Refueling Outage.Caused by Personnel Error.Valve Verified Locked Open During 1990 Outage & Training Session Held (← links)
- 05000339/LER-1983-070-03, /03L-0:on 830826,pump Flowrate Not Measured Per ASME Xi,Subsection Iwp Requirements.Caused by ASME XI Iwp Requirement Inadvertently Deleted During Rev to Testing Procedure (← links)
- 05000339/LER-1983-068-03, /03L-0:on 830913,MOV-RS-200B Failed to Open During Stroke Time Test.Normally Closed Torque Switch Contacts in Valve Operator Found Open.Contacts Cleaned & Adjusted.W/ (← links)
- 05000339/LER-1983-067-03, /03L-0:on 830824,stub Bus Breaker H Failed to Open from Simulated Undervoltage Signal During Surveillance Testing.Caused by Incorrectly Wired Relay.New Relay Terminated Correctly (← links)
- 05000339/LER-1983-066-03, /03L-0:on 830822,Fire Door S54-13 from Air Conditioner Room to Chiller Room Would Not Close Automatically.Caused by Failed Door Closure Mechanism. Closure Mechanism Replaced (← links)
- 05000339/LER-1983-062-03, /03L-0:on 830729,w/unit at 100% Power,Rcs Identified Leakage Increased to 13 Gpm,Greater than Tech Spec Limit.Caused by Packing Leak on Loop a Bypass Valve MOV-2585.Valve Repacked (← links)
- 05000339/LER-1983-031-03, /03L-0:on 830408,w/unit in Mode 5,power Lost to RHR Subsystem a When 2H 4,160-volt Emergency Bus Deenergized.Caused by Failure of Fuses for 2H Emergency Bus Undervoltage Test Circuit.Fuses Replaced (← links)
- 05000339/LER-1983-023-03, /03L-0:on 830414,RHR Flow Temporarily Lost When One of Two in-series RHR Suction Valves Closed.Caused by Open Input Breaker.Breaker Reclosed,Vital Bus Restored,Rhr Suction Valve Reopened & Flow Restored (← links)
- 05000339/LER-1991-010-02, :on 911006,condenser Air Ejector Isolation Occurred W/Subsequent Bypassing of Flow to Radiation Monitor.Caused by Failure to Provide Adequate Supervisory Controls Over non-routine Evolution (← links)
- 05000339/LER-1991-003-03, :on 910522,determined Surveillance Test on Four Safety Injection Sys Accumulator Nitrogen Sypply & Vent Valves Missed.Caused by Personnel Error.Affected Valves Successfully Tested (← links)
- 05000339/LER-1991-002-03, :on 910514,automatic Start of 2H Emergency Diesel Generator Occurred Caused by de-energization of 2H Emergency Bus.Caused by Personnel Error.Abnormal Procedure Loss of Electrical Power Entered (← links)
- 05000339/LER-1983-049-03, /03L-0:on 830710,containment Pressure Protection Channel IV Failed Low.Caused by Failure of Power Supply Card for Containment Pressure Protection Channel Iv.Power Supply Card Replaced (← links)
- 05000339/LER-1983-053-03, /03L-0:on 830706,outside Containment Isolation Valve for Primary Vent Pot Vent Line (2-DA-9) Found Open. Caused by Valve Locked Open by Mistake Due to Confusion of Valve Type & Inverted Position (← links)
- 05000339/LER-1983-055-03, /03L-0:on 830706,w/unit at 100% Power,Fire Door S71-18 Between Emergency Diesel Generator 2H Room & Turbine Bldg Would Not Latch & Lock.Fire Watch Immediately Posted. Caused by Latch Mechanism Damage (← links)
- 05000339/LER-1983-057-03, /03L-0:on 830706,containment Inner Personnel Air Lock Seal Leakage Detected.Caused by Dirty Seals from Containment Entries.Seals Cleaned & Lubricated (← links)
- 05000339/LER-1983-050-03, /03L-0:on 830613,w/unit at 100% Power,Emergency Diesel Generator 2J Tripped During Surveillance Testing. Caused by High Jacket Coolant Temp.Setpoint Found Lower than Required.Setpoint Recalibr Satisfactorily (← links)
- 05000339/LER-1983-043-03, /03L-0:on 830620-27,during Startup from Mode 3 & Subsequent 100% Power operation,34 Rod Position Indicators Deviated Greater than 12 Steps from Group Demand Position. Caused by Temp Variations (← links)
- 05000339/LER-1983-060-03, /03L-0:on 830811,heat Tracing Circuit ET-167N (Boiler Injection Tank Outlet Piping) Failed.Caused by Failed Control Card.Card Replaced (← links)
- 05000339/LER-1983-061-03, /03L-0:on 830818,discovered Open Penetration in Roof of Battery Room 2-II.Cause Undetermined.Threaded Pipe Cap Installed as Permanent Fire Barrier (← links)
- 05000339/LER-1983-063-03, /03L-0:on 830730,rod Insertion Limits Violated for 1 H.Caused by Control Room Operator Using Secondary Calorimetric to Determine Power Level.Limits Are Actually Function of Primary Power (← links)
- 05000339/LER-1983-033-03, /03L-0:on 830515,pressure in Nitrogen Supply Tank B for Pressurizer PORV (PCV-2455C) Dropped Below Min Pressure Required.Caused by Downstream Nitrogen Supply to PORV Relief Valve Lifting.Regulators Reset (← links)
- 05000339/LER-1983-040-03, /03L-0:on 830518,during Refueling Outage,Type C Tests Revealed That 17 Containment Isolation Valves Exceeded Total Allowable Leakage.Caused by Dirt or Debris on Seating Surfaces.Seats Cleaned,Inspected & Repaired (← links)
- 05000339/LER-1983-064-03, /03L-0:on 830731,emergency Condensate Storage Tank Dropped Below 110,000 Gallons When Auxiliary Feedwater Pumps in Operation Following Reactor Trip.Caused by low-low Steam Generator Level Signal.Level Restored (← links)
- 05000339/LER-1983-065-03, /03L-0:on 830730-31 & 0803,rod Position Indicators Deviated from Group Demand Position by More than 12 Steps. Caused by Detector Temp Variations & Westinghouse Generic Problem.Indicators Recalibr (← links)
- 05000339/LER-1983-058-03, /03L-0:on 830717,18 & 25,individual Rod Position Indicators Deviated from Group Demand Position.Caused by Instrument Drift,Generic to Westinghouse Analog Position Sys.Channels Recalibr (← links)
- 05000339/LER-1983-059-03, /03L-0:on 830717,inverter Feeding Vital Bus 2-I Failed,Causing Temporary Loss of Vital Bus & Reactor & Turbine Trip.Caused by Spikes Induced by Faulty Silicone Controlled Rectifiers,Blowing Input Fuses (← links)
- 05000339/LER-1983-054-03, /03L-0:on 830704,emergency Diesel Generator 2H Tripped on High Jacket Coolant Temp.Caused by Low Lube Oil Level.Lube Oil Added & Diesel Allowed to Cool Prior to Retesting (← links)
- 05000339/LER-1983-056-03, /03L-0:on 830711,containment Average Temp Exceeded 105 F for 12 Minutes.Caused by Mechanical Chiller Tripping on Low Compressor Oil Pressure.Steam Chiller Started & Lined Up to Containment Air Recirculation Coolers (← links)
- 05000339/LER-1983-030-03, /03L-0:on 830406,pressure in Nitrogen Supply Tank B for Pressurizer PORV PCV-2455C Dropped Below Min to Consider PORV Operable.Caused by Leak in Pressurizer PORV Nitrogen Supply Sys.Mod Scheduled During Current Outage (← links)
- 05000339/LER-1994-005-01, :on 940601,leakage Identified from Nozzle Weld on Small Diameter Seal Injection Line Associated W/B Reactor Coolant Pump.Caused by Seal Injection Line Nozzle Weld Failure.Unit Placed in Cold Shutdown (← links)
- 05000339/LER-1983-028-03, /03L-0:on 830402,emergency Diesel Generator 2J Tripped on High Crankcase Pressure After Emergency Start Signal,Initiated from ECCS Actuation,Reset.Cause Unknown. Generator Started & Tested Satisfactorily.Switch Calibr (← links)
- 05000339/LER-1983-027-03, /03L-0:on 830402,main Steam Safety Valve Pressure Setpoints for Valves SV-MS-201C,202C,203A & C,204A & 205A Found Low.Caused by Setpoint Drift.Setpoints Adjusted (← links)
- 05000339/LER-1983-024-03, /03L-0:on 830320,rod B-08 Indication Channel Deviated from Group Demand Position by Greater than 12 Steps.Caused by Instrument Drift.Problem Generic to Westinghouse Sys.Channel Recalibr (← links)
- 05000339/LER-1991-001-03, :on 910318,surveillance Not Performed on PORV Control Circuitry.Caused by Incorrect Interpretation of TS & Administrative Error.Appropriate Procedure Will Be Revised Prior to Next Scheduled Surveillance (← links)
- 05000339/LER-1983-020-03, /03L-0:on 830302,MOV-RS-55A,2-RS-P-2A Suction Isolation Valve Could Not Be Reopened After Having Been Closed for Periodic Test,Rendering Recirculation Spray Pump Inoperable.Caused by Stripped Bevel Gear.Gear Replaced (← links)
- 05000339/LER-1983-019-03, /03L:on 830226,w/unit at 100% Power,Valve TV-CC-205C Failed to Close from Control Room.Cause Unknown. Valve Stroked Satisfactorily & Returned to Svc.Redundant Isolation Valve Energized & Returned to Svc (← links)
- 05000339/LER-1983-021-03, /03L-0:on 830302,inservice Insp Visual Exam of Interior of Reactor Vessel Not Performed During First Refueling Outage Per ASME Xi.Caused by Personnel Error. Required Visual Exam Will Be Performed During 830401 Outage (← links)
- 05000339/LER-1983-022-03, /03L-0:on 830304,w/unit in Mode 1,fire Door S54-7 Between Unit 1 Emergency Switchgear Room & Stairway to Control Room Declared Inoperable.Caused by Misadjustment of Reclosure Device & Door Latch.Device & Latch Readjusted (← links)
- 05000339/LER-1983-018-03, /03L-0:on 830227,w/unit in Mode 3 Following Reactor Trip,Source Range Detectors N-31 & N-32 Declared Inoperable After Receipt of Erroneous Readings.Caused by Energizing of Detectors on 830224.Detectors Replaced (← links)
- 05000339/LER-1983-042-03, /03L-0:on 830522,w/unit in Mode 4,RCS Unidentified Leakage Exceeded Tech Spec 4.6.2 Limit.Caused by Shaft Sleeve Gasket Failure on RHR Pump A.No Cause Determined. Mechanical Seal & Gasket Replaced (← links)
- 05000339/LER-1983-041-03, /03L-0:on 830517,two Containment Isolation Trip Valves Failed.Cause Undetermined.Broken Plunger Spring Found on One Valve.Stem Assembly on TV-SS-206A & Valve TV-SS-203A Replaced (← links)
- 05000339/LER-1983-046-03, /03L-0:on 830527-29,31 & 0614 & 22,individual Rod Position Indicators Deviated from Group Demand Position. Caused by Instrument Drift.Indicator Channels Recalibr (← links)
- 05000339/LER-1983-015-03, /03L-0:on 830202,ESF P-12 Interlock Reset Value Found Out of Limit High on One of Three Channels.Caused by Erratic & Sensitive Potentiometer on Comparator Card TC-432E.Card Replaced (← links)
- 05000339/LER-1983-039-03, /03L-0:on 830513,train B solid-state Protection Sys Undervoltage Output Board Found Failed During Channel Functional Test,Rendering Trip Function Inoperable.Cause Not Stated (← links)
- 05000339/LER-1983-037-03, /03L-0:on 830502,containment Particulate (RM-259) & Gaseous (RM-260) Activity Monitors Found Isolated W/ Containment Purge & Exhaust Sys in Operation.Caused by Failure to Reopen Manual Isolation Valve (← links)
- 05000339/LER-1982-061-03, /03L-0:on 820905,low Head Safety Injection Pump 2-SI-P-1A Containment Sump Suction Valve MOV-2860A Failed to Open During Periodic Surveillance Test.Caused by Power Cord Wrapped Around Valve Operator Flexible Extension (← links)
- 05000339/LER-1983-035-03, /03L-0:on 830423 & 24,86 Lockout Relay Wiring Omission Detected While Testing Bus 2H Charging High Head Safety Injection Pump Breakers.Caused by Incorrect Wiring. Wiring Properly Installed (← links)
- 05000339/LER-1983-036-03, /03L-0:on 830429,while in Mode 6,loss of Vital Bus 2-1 Resulted in Loss of RHR Flow for Less than 1 Minute When One of Two RHR Suction Valves in Series Closed.Caused by Personnel Shorting Test Lead.Bus Restored (← links)
- 05000339/LER-1983-001-03, /03L-0:on 830123,charging Pump 2-CH-P-1C Secured from Operation During High Lube Oil Temp Evaluation on Pump Speed Changer.Caused by Faulty Temp Indicator.Excess Oil Drained & Temp Returned to Normal.Temp Indicator Replaced (← links)
- 05000339/LER-1983-012-03, /03L-0:on 830114,delta T Indicator Associated W/Delta T Protection for Loop a Read 6% High.Caused by Failed Relay Card on Delta T Hot Loop A,TE-2412B,output. Card Replaced (← links)
- 05000339/LER-1983-014-03, /03L-0:on 830113,18 & 25,svc Water Supply Header to Units 1 & 2 Charging Pump Lube Oil Coolers & Air Compressors Isolated to Repair Pinhole Leaks.Caused by Aggressive Water & Bacterial Reduction of Mild Steel Piping (← links)
- 05000339/LER-1983-013-03, /03L-0:on 830113,during Mode 1,individual RPI for Rod P-06 in Control Bank a Deviated from Group Demand Position by Greater than 12 Steps W/No Rod Motion.Caused by Dirty Contacts on Signal Conditioning Module (← links)
- 05000339/LER-1983-009-03, /03L-0:on 830112,train a Reactor Trip Breaker Bypassed for More than Allowed 2 H During Solid State Protection Sys Surveillance Testing.Cause Due to Necessity to Replace Damaged Universal Logic Card (← links)
- 05000339/LER-1983-005-03, /03L-0:on 830108,valve Monitoring Sys Cabinet de-energized for Maint,Causing Loss of Valve Position Indication for Pressurizer Safety & Porvs.Caused by Open Breakers.Breakers Closed After Maint (← links)
- 05000339/LER-1983-010-03, /03L-0:on 830109,fire Door S54-13 Between Control Room Air Handler Room & Control Room Chiller Room Would Not Consistently Close.Caused by Loose Door Hinges & Out of Adjustment Reclosure Device.Hinges Tightened (← links)
- 05000339/LER-1982-086-03, /03L-0:on 821221,outside & Inside Containment Isolation Valves in Steam Generator Wet Layup Sys Found Open,Unlocked & Unattended.Caused by Procedural Inadequacy. Valves Locked & Containment Integrity Checklist Revised (← links)
- 05000339/LER-1982-076-03, /03L-0:on 821225 & 26,quadrant Power Tilt Ratio Exceeded 1.02 & on 821226 Axial Flux Difference Went Outside Target Band.Cause Not Stated.Power Tilt Ratio & Flux Difference Brought within Tech Spec Limits (← links)
- 05000339/LER-1982-082-03, /03L-0:on 821213,fire Door S71-18 Between 2H Emergency Diesel Generator Room & Turbine Bldg Failed to Latch & Lock.Caused by Latch Sticking.Latch Adjusted & Lubricated.Design Mods Pursued (← links)
- 05000339/LER-1982-080-03, /03L-0:on 821206,during Mode 1,individual RPI for Rod H-02 in Control Bank D Deviated from Group Demand Position by Greater than 12 Steps W/No Rod Motion.Caused by Instrument Drift.Rpi Channel Recalibr & Returned to Svc (← links)
- 05000339/LER-1982-078-03, /03L-0:on 821205,during Mode 1,containment Average Air Temp Exceeded 105 F.Caused by Temp Increase of Chilled Water to Containment Air Recirculation Cooling Coils Due to Temporary Inoperability of Mechanical Refrigeration Un (← links)
- 05000339/LER-1982-079-03, /03L-0:on 821206,axial Flux Difference Went Less than 5% from Target Band for Duration of 2 Minutes.Caused by Personnel Error During Power Increase from 30% to 60%. Rods Withdrawn & Difference Restored to within Limits (← links)
- 05000339/LER-1982-081-03, /03L-0:on 821206,breaker for MOV-SW-201D Discovered Open.Caused by Inadvertent Opening of Circuit Breaker Perhaps Due to Narrow Passage.Breaker Closed & Valve Control Power Verified (← links)
- 05000339/LER-1982-075-03, /03L-0:on 821123,delta Flux Momentarily Exceeded 5% Target Band During Performance of Control Rod Operability Periodic Test.Caused by Movement of Control Rods Into Core 18 Steps for Control Rod Operability Test (← links)
- 05000339/LER-1982-077-01, /01T-0:on 821206,monthly Surveillance Tests for Power Range Channels Discovered Missing.Caused by Tests Being Inadvertently Marked Off by Instrument Supervisor. Tests Completed Satisfactorily (← links)
- 05000339/LER-1982-074-03, /03L-0:on 821122,during Mode 1,RPI for Rod C-7 in Shutdown Bank a Deviated from Group Demand Position by Greater than 12 Steps W/No Rod Motion.On 821123,similar Event Occurred on Rod B-8.Caused by Instrument Drift (← links)
- 05000339/LER-1982-013-03, During Periodic Surveillance Test,One Diesel Generator & One Offsite Power Supply for Emergency Bus 2H Became Temporarily Inoperable. Caused by Deficiency in Procedure.Periodic Test Changed (← links)
- 05000339/LER-1982-072-03, /03L-0:on 821105,blowdown Trip Valve TV-BD-200C Would Not Remain Closed When Manually Closed.Caused by Closed Position Limit Switch Out of Adjustment.Limit Switch Cam Repositioned (← links)
- 05000339/LER-1982-073-03, /03L-0:on 821108,channel a RCS Subcooling Monitor Declared Inoperable After Erroneous Readings Observed.Cause Not Determined.Monitor Reset & Functioned Properly (← links)
- 05000339/LER-1983-026-03, /03L-0:on 830402,Fire Doors S71-18 & S71-16 Between 2H & 2J Emergency Diesel Generator Rooms & Turbine Bldg Would Not Latch.Caused by Door Strikes Jammed Open & Bent.Latches Disassembled,Cleaned,Reassembled & Tested (← links)
- 05000339/LER-1983-025-03, /03L-0:on 830331,w/unit in Mode 1,steam Generator B Water Level Channel 1 high-high Turbine Trip/Feedwater Isolation Setpoint Discovered Greater than Tech Spec Limit. Caused by Malfunctioning Comparator Card.Card Replaced (← links)
- 05000339/LER-1982-063-03, /03L-0:on 820926,individual Rod Position Indication for Rod B-08 in Control Bank D Deviated from Group Demand Position by Greater than 12 Steps W/No Rod Motion.Caused by Instrument Drift.Instrument Recalibr (← links)
- 05000339/LER-1983-007-03, /03L-0:on 830201,svc Water Supply Header to Charging Pump Lube Oil Coolers & Air Compressors Isolated to Repair Pinhole Leaks.Caused by Aggressive Water & Bacterial Reduction of Mild Steel Piping.Piping Replaced (← links)
- 05000339/LER-1983-017-03, /03L-0:on 830215,w/unit at 100% Power,One of Two Series Accumulator Fill Line Valves Found Locked in Open Position.Caused by Personnel Error.Responsible Operators Instructed to Follow Procedures Carefully (← links)
- 05000339/LER-1982-070-03, /03L-0:on 821025,acoustic Monitor for PORV-2456 Found to Be Inoperable.Caused by Failed Signal from Accelerometer,Originating in Accelerometer or Preamplifier. Active Channel Replaced W/Passibe Channel (← links)
- 05000339/LER-1982-069-03, /03L-0:on 821020,generator Field on 2J Emergency Diesel Generator Failed to Flash During post-preventive Maint Operability Test.Caused by Failure of Generator Field Contractor Latch Trip Coil to Energize.Coil Replaced (← links)
- 05000339/LER-1982-066-03, /03L-0:on 821013,case Cooling Pump 2-RC-P-3A Removed from Svc During Monthly Surveillance Test Due to Differential Pressure Value Below Acceptable Range.Pump Impeller Adjusted & Returned to Svc (← links)
- 05000339/LER-1982-065-03, /03L-0:on 821007,control Power for a Casing Cooling Pump Found de-energized Due to Open Circuit Breaker. Cause Unidentified.Circuit Breaker Closed (← links)
- 05000339/LER-1982-060-03, /03L-0:on 820914,w/Unit 2 at 98% Power,Fire Door S54-9 Between Emergency Switchgear Room & Cable Vault Found Blocked Open W/O Fire Watch.Cause Unknown.Block Removed & Door Operability Verified (← links)
- 05000339/LER-1982-062-03, /03L-0:on 820910 & 13,fire Door S54-9 Found Not Providing Definitive Seal for Control Room Pressure Boundary.Caused by out-of-plumb Door Installation.Door Removed,Stops Adjusted & Door Replaced (← links)
- 05000339/LER-1990-006-02, :on 901015,pressurizer Power Operated Relief Valves Not Properly Tested Due to Personnel Error (← links)
- 05000339/LER-1994-004-01, :on 940318,multiple Irpi Alarms Were Received. Caused by Intermittent Failure of Capacitor on Irpi.Control Rod Indication Adjustments Were Made & TS 3.0.3 Cleared.W/ (← links)
- 05000339/LER-1990-005-02, :on 901005,pressurizer & Main Steam Safety Valve Setpoints Found Out of Tolerance Due to Setpoint Drift (← links)
- 05000339/LER-1982-059-03, /03L-0:on 820830,steam Generator B Steam Flow Channel Iv,Providing Steam Line Break & Loss of Heat Sink Protection,Failed High.Cause Not Determined.Channel Placed in Tripped Condition.Problem Cleared During Troubleshooting (← links)
- 05000339/LER-1983-006-03, /03L-0:on 830106,MOV-RS-255B,recirculation Spray Pump 2B Suction Isolation Valve Failed to Reopen After Periodic Test,Rendering 2-RS-P-2B Inoperable.Caused by Motor Operator Torquing Out from Jammed Seal Cap.Cap Reset (← links)
- 05000339/LER-1982-050-03, /03L-0:on 820816,RHR Pump 1A Removed from Svc Leaving One Loop for Decay Heat Removal Operable.Caused by Need to Replace Mechanical Seal Due to Primary O Ring Overheating (← links)
- 05000339/LER-1982-052-03, /03L-0:on 820822,one RCS Subcooling Margin Monitor Failed.Caused by Internal Circuit Locking Processor in Alarm Mode.Alarm Reset (← links)
- 05000339/LER-1982-055-01, /01T-0:on 820827,carbon Lab Analysis Surveillance on Both Trains of Common Safeguards Area Ventilation Sys Expired W/Units in Mode 3.Caused by Lack of Administrative Control.Test Procedure Not Run Every 720-h of Operation (← links)
- 05000339/LER-1982-043-03, During Shutdown,Thermal Sleeve on B Loop SI Accumulator to Reactor Coolant Cold Leg Piping Found Displaced & Three Addl Sleeves Found W/Cracked Welding.Failure Under Evaluation by Westinghouse (← links)
- 05000339/LER-1982-044-03, /03L-0:on 820812,during Mode 5 Operation,Steady State Chloride Limit in RCS Exceeded for More than 24-h. Caused by Introduction of Contaminants Into RCS During Maint.Letdown Path re-established (← links)
- 05000339/LER-1991-006, :on 910905,determined That Inoperable Degraded Voltage Relay Not Placed in Trip within Required One H Limit.Development of Periodic Replacement Program Being Revised & TS Change Will Be Evaluated (← links)
- 05000339/LER-1982-049-03, /03L-0:on 820717,RHR Pump a Removed from Svc.On 820730,suction to RHR Pumps a & B Lost.On 820802,RHR Flow Was Less than 3,000 Gpm & Pump Amps Were Fluctuating.Caused by Inadequate RCS Level at RHR Pump Suction Penetration (← links)
- 05000339/LER-1994-002, :on 940106,discovered That ASME Code Exam Were Not Performed as Required Due to Failure to Follow Procedure.Held Conference Call to Discuss Relief from Code Requirements (← links)
- 05000339/LER-1982-048-03, /03L-0:on 820723,low Head Safety Injection Pump Declared Inoperable Due to Excessive Vibration Readings. Caused by Gradual Deteoriation of Upper Motor Bearing.Motor Bearing Replaced (← links)
- 05000339/LER-1994-001, :on 940105,steam Driven Afp 2-FW-P-2 Inlet Trip Valve Closed When Manual Trip Level Accidentally Actuated Rendering Pump Inoperable.Caused by Personnel Error.Maint Engineer Counseled on Proper Work Practices (← links)
- 05000339/LER-1981-007-03, /03L-0:on 801230,boron Concentration in Boron Acid Storage Tank C & Boron Injection Tank Below Tech Spec. Probably Caused by Inleakage of Unknown Source.Boric Acid Transferred to Tank C.Investigation of Leak Underway (← links)
- 05000339/LER-1990-010-02, :on 901102,reactor Trip from 9% Power Occurred Due to Loss of Normal Feedwater (← links)
- 05000339/LER-1982-041-03, /03L-0:on 820706,individual Rod Position Indication for Rod B-08 in Control Bank D Deviated from Group Demand Position by Greater than 12 Steps W/No Rod Motion.Caused by Instrument Drift.Rod B-08 Recalibr (← links)
- 05000339/LER-1982-039-03, /03L-0:on 820703,inner Personnel Hatch Door Found to Have Unacceptable Leak Rate.Caused by Dirty Door Seals. Seals Cleaned & Door Tested Satisfactorily (← links)
- 05000339/LER-1982-040-03, /03L-0:on 820704,axial Flux Difference Went Less than 5% from Target Hand for 1 Minute.Caused by Inserting a Rod Control Bank 18 Steps for Rod Operability Periodic Test. Rods Withdrawn & Difference Restored (← links)
- 05000339/LER-1990-004-02, :on 901002,greater than One Percent of Inservice Tubes Found Defective on Steam Generators a & C (← links)
- 05000339/LER-1982-042-03, /03L-0:on 820710,pressure in Nitrogen Supply Tank a for Pressurizer Power Operated Relief Valve Dropped Below Min.Caused by Leakage in Nitrogen Supply Sys & Inadequate Method of Replenishing Nitrogen.Sys to Be Modified (← links)
- 05000339/LER-1989-006, :on 890315,pressurizer Code Safety Valves out- of-tolerance (← links)
- 05000339/LER-1993-007-02, :on 931014,cold Leg Line Flow Found to Be Below Tech Specs Min Requirements.Caused by Uncertainties in Unit 2 HHSI Flow Measurements.Cold Leg Safety Injection Throttle Valves Adjusted (← links)
- 05000339/LER-1990-003-03, :on 900821,auxiliary Feedwater Pumps auto- Started When Main Feedwater Pump C Breakers Opened on hi-hi Level in a Steam Generator Due to Personnel Error & Procedural Inadequacy (← links)
- 05000339/LER-1990-002-03, :on 900802,reserve Station Svc Transformer B Isolated Due to Phase Differential Relay Trips on All Three Phases.Caused by Fault in Winding of Transformer.Abnormal Procedure Entered to Determine Extent of Loss (← links)
- 05000339/LER-1993-006-02, :on 930921,discovered SG Tube Degradation Due Water Stress Corrosion Cracking Originating Outside Diameter of Tube.Removed Tubes W/Pluggable Indications (← links)
- 05000339/LER-1982-046-03, /03L-0:on 820719,w/unit Defueled,Operator Discovered Liquid Samples Not Taken from RCS from 820402-12. Caused by High Radiation Level in RCS & RHR Sys That Prevented Sampling.Nrc Relief Requirements Expected (← links)
- 05000339/LER-1982-045-03, /03L-0:on 820713,tube Lane Block Device Split Plate on Manway Side Discovered Loose.Caused by Improper Fitting of Split Plate & Cracked Welds on Set Screw Nuts. Split Plate Rebuilt & Tube Lane Block Device Replaced (← links)
- 05000339/LER-1990-008-02, :on 901020,cold Leg Safety Injection Branch Flow Found to Be Below Tech Spec Requirements (← links)
- 05000339/LER-1982-047-03, /03L-0:on 820714,fire Door S-54-11 Between Turbine Bldg & Emergency Switchgear Room Found Closed But Unlatched Since Maint Work on 820622.Caused by Keeper Welded 1 Inch Too High on Frame.Keeper Rewelded (← links)
- 05000339/LER-1990-009-02, :on 901028,2J 416-volt Emergency Bus Deenergized Due to Design Deficiency (← links)
- 05000339/LER-1982-038-03, /03L-0:on 820626,quadrant Power Tilt Ratio Not Determined within Required 12-h.Caused by Failure to Perform Surveillance within Required Time Interval.Personnel Counseled (← links)
- 05000339/LER-1993-005-03, :on 930909,EDG Load Sequencing Timers Found Outside Setpoint Tolerence Due to Setpoint Drift.Program Established to Replace Agastat 2400/7000 Series Timer Relays w/Allen-Bradley RTC Solid State Timers (← links)
- 05000339/LER-1993-002, :on 930416,automatic Trip Occurred Due to Malfunction in Main Generator Voltage Regulator Circuitry. Performed Insp of Turbine/Generator (← links)
- 05000339/LER-1982-037-03, /03L-0:on 820618,axial Flux Difference Fluctuated Less than -5% from Target Band for 41 Minutes.Caused by Rapid Power Reduction on Loss of One Feed Pump & Subsequent Insertion of Rods to Control RCS Temp (← links)
- 05000339/LER-1982-027-03, /03L-0:on 820620 & 23 Axial Flux Difference Went Less than -5% from Target on Two Occasions.Caused by Inability to Establish Stable Axial Flux Difference Target in New Core (← links)
- 05000339/LER-1982-036-03, /03L-0:on 820618,channel IV Steam Flow Indicator for Steam Generators B & C Failed Low.Cause of Both Events Unknown.Channels Placed in Tripped Condition & Approved Calibr Procedure Performed (← links)
- 05000339/LER-1982-035-03, /03L-0:on 820609,RCS Identified Leakage Found to Be Greater than Tech Spec Max.Caused by Packing Leak on Manual Loop Drain Isolation Valves 2-RC-30 & 2-RC-39. Packaging Tightened & Valve 2-RC-30 Replaced (← links)
- 05000339/LER-1982-025-03, /03L-0:on 820613,individual Rod Position Indication for Rod P-08 in Control Bank D Deviated from Group Demand Position More than 12 Steps.Caused by Instrument Drift.Rod P-08 Recalibr & Returned to Svc (← links)
- 05000339/LER-1982-034-03, /03L-0:on 820608,during Mode 5 Operation,Fire Door S54-13 Between Control Room Air Handler Room & Control Room Chiller Room Would Not Latch.Caused by Loose Latching Mechanism.Latch Tightened & Door Verified Operable (← links)
- 05000339/LER-1982-033-03, /03L-0:on 820605,pressure in a Nitrogen Supply Tank for Pressurizer power-operated Relief Valve Dropped Below Min.Caused by Leakage in Pressurizer Nitrogen Supply Sys.Method of Replenishing Nitrogen Supplies Inadequate (← links)
- 05000339/LER-1982-030-03, /03L-0:on 820601,rod G-13 in Shutdown Bank a Deviated from Group Demand Position.Caused by Failed Signal Conditioning Module in Circuit.New Module Installed & Calibr (← links)
- 05000339/LER-1982-032-03, /03L-0:on 820529,control Room Bottled Air Pressurization Sys Found Below Required Pressure.Caused by Isolation Valve Leakage During Periodic Testing.Sys Repressurized & Declared Operable (← links)
- 05000339/LER-1982-031-03, /03L-0:on 820530,outer Personnel Hatch Door Leaked at Unacceptable Rate.Caused by Worn Door Seals Due to Performance of Leak Rate Periodic Test.Seals Replaced.Hatch Door Tested Satisfactorily (← links)
- 05000339/LER-1982-029-03, /03L-0:on 820526,while in Mode 5,power-operated Relief Valve Returned to Svc W/O Testing for Operability Following Maint.When Tested,Valve Failed Operability Test. Caused by Inadequate Administrative Control (← links)
- 05000339/LER-1982-028-03, /03L-0:on 820529,power Supply Breaker Inside Recirculation Spray Pump Failed to Operate During Emergency Bus Loss of Power Test.Caused by Misalignment of Motor Protection Circuit Switch.Switch Readjusted (← links)
- 05000339/LER-1982-026-03, /03L-0:on 820520,RCS Suction to RHR Sys Pumps Lost on Three Occasions.Caused by Erroneous RCS Level Indications While Draining Rcs.Charging Pump Started to Refill Sys (← links)
- 05000339/LER-1982-024-03, /03X-0:on 820518,w/RCS Water Solid,Power Operated Relief valve,PCV-2456,lifted Twice When Loop C Cold Leg Stop valve,MOV-2595,opened & Reactor Coolant pump,2-RC-P-1C Started.Caused by Thermal Expansion of Reactor Coolant (← links)
- 05000339/LER-1982-022-01, /01T-0:on 820528,while in Mode 4,both Trains of Quench Spray Subsystem & Recirculation Spray Sys Inoperable for 17 Minutes.Caused by Misplacement of Jumpers on Train a Output Cabinet.Jumpers Removed.Pumps Placed on Auto (← links)
- 05000339/LER-1982-023-03, /03L-0:on 820516 & 17,pressure in Nitrogen Reservoir for Pressurizer Power Operated Relief Valve PCV-2455c Dropped Below Tech Spec Limit.Caused by Nitrogen Leak in Supply Sys.Sys Will Be Modified (← links)
- 05000339/LER-1982-021-03, /03L-0:on 820506,operable Borated Water Source Boron Concentration Found Lower than Allowable.Caused by Source Being Diluted by Using Approved Jumper from Boron Recovery Test Tank,Which Was Not Borated (← links)
- 05000339/LER-1982-017, Forwards Updated LER 82-017/03X-1 (← links)
- 05000339/LER-1982-019-03, /03L-0:on 820511,w/2H Emergency Diesel Generator (EDG) Inoperable,Differential Current Protection Relay Found Inoperable on 2J Edg.Caused by de-energizing of Differential Current Protection Curcuit for 2J Diesel Output Break (← links)
- 05000339/LER-1982-007-03, /03L-0:on 820312,during Mode 5,emergency Diesel Generators 2H & 2J Were Not Operable.Caused by Failure of Voltage Regulator for 2J Causing Bus Voltage to Peg High & Open 1J Output Breaker 25J2 (← links)
- 05000339/LER-1982-020-03, /03L-0:on 820425,during Mode 6,containment Particulate & Gaseous Activity Detectors Removed from Svc W/O Securing Containment Purge & Exhaust Sys.Caused by Surpervisor Error.Supervisor Reinstructed (← links)
- 05000339/LER-1982-018-03, /03L-0:on 820427,emergency Diesel Generator Returned to Svc W/O Residual Voltage Protection in Control Circuit of Output Breaker.Caused by Interruption of Design Change 80-571.Timer Reinstalled (← links)
- 05000339/LER-1982-011-03, /03L-0:on 820410,fire Door M-80-2 Blocked Open W/O Fire Watch.On 820412,fire Door A-80-2 Would Not Close & Latch.Caused by Failure to Follow Procedures for Breeching Fire Barriers & Reclosure Device Being Out of Adjustment (← links)
- 05000339/LER-1982-011, Forwards LER 82-011/03L-0 (← links)
- 05000339/LER-1982-016-03, /03L-0:on 820323,lower Main Bearing 14 in Emergency Diesel 2-EE-EG-1J Found Scored.Caused by Lack of Lubrication Due to Disconnected Lubrication Oil Line. Bearing Replaced (← links)
- 05000339/LER-1982-016, Forwards LER 82-016/03L-0 (← links)
- 05000339/LER-1982-014-01, /01T-0:on 820329,Westinghouse Determined That Six Solid State Protection Output Slave Relays Did Not Have Qualified Latching Mechanisms.Caused by Westinghouse Supplying Unqualified Mechanisms.Latches Will Be Replaced (← links)
- 05000339/LER-1982-014, Forwards LER 82-014/01T-0 (← links)
- 05000339/LER-1982-015-03, /03L-0:on 820323,setpoint of Code Safety Valve SV-2551-B Found to Be 2,400 Psig,Outside 2,485 Psig Tolerance Band.Caused by Spring Compression Being Out of Adjustment.Spring Compression Readjusted (← links)
- 05000339/LER-1982-015, Forwards LER 82-015/03L-0 (← links)
- 05000339/LER-1982-009-03, /03L-0:from 820308-10,pressurizer Power Operated Relief Valves Declared Inoperable Three Times While Cooling Down for Refueling Outage.Caused by Excessive Nitrogen Sys Demand,Excessive Sys Leakage & Inadequate Makeup Supply (← links)
- 05000339/LER-1982-009, Forwards LER 82-009/03L-0 (← links)
- 05000339/LER-1982-012-03, /03L-0:on 820313,fire Door M80-2 Between Rod Control Room & Outside Would Not Close.On 820326,fire Door A80-2 Between Rod Control Room & Auxiliary Bldg Would Not Close.Caused by Improper Alignment Due to Excessive Use (← links)
- 05000339/LER-1982-012, Forwards LER 82-012/03L-0 (← links)
- 05000339/LER-1982-005-03, /03L-0:on 820222,in Mode 1,2J Emergency Diesel Generator Fire Door (S71-16) Between Diesel Room & Turbine Bldg Would Not Latch.Caused by Door Lock Tumbler Rotating on Axis & Not Engaging Latch.Lock Tumbler Tightened (← links)
- 05000339/LER-1982-005, Forwards LER 82-005/03L-0 (← links)
- 05000339/LER-1982-008-01, /01T-0:on 820307,prior to Refueling Outage,Power Restored to Accumulator Isolation Valves & Valves Closed W/ Pressurizer Pressure 1,000 Psig.Caused by Personnel Error. Valves Automatically Reopened W/Increased Pressure (← links)
- 05000339/LER-1982-008, Forwards LER 82-008/01T-0 (← links)
- 05000339/LER-1993-002-02, :on 930416,automatic Reactor Trip Initiated from Turbine Trip Due to Over Excitation of Main Generator. Emergency Procedure 2-E-0 Entered & Individuals Involved in Event Received Remediated Training (← links)
- 05000339/LER-1993-003-02, :on 930424,manual Reactor Trip Initiated Due to Erratic Feedwater Flow Indications to SG C & Excessive Main Feedwater Regulating Valve Oscillations.Caused by Design Instabilities.Secondary Sys Secured (← links)
- 05000339/LER-1982-006-03, /03L-0:on 820216,during Mode 1 Operation,B Quench Spray Subsystem Removed from Svc Contrary to Tech Specs. Subsystem Removed from Svc to Repair body-to-bonnet Leak on B Quench Spray Pump Suction valve,MOV-QS-200B (← links)
- 05000339/LER-1982-006, Forwards LER 82-006/03L-0 (← links)
- 05000339/LER-1982-003-03, /03L-0:on 820110,individual Rod Position Indication(Ipri)For Rod J-07 & Group Demand Position for Shutdown Bank B Differed by 12 Steps.On 820111,IRPI for Rod B-08 Drifted.Caused by Voltage Drift in Circuitry (← links)
- 05000339/LER-1982-003, Forwards LER 82-003/03L-0 (← links)
- 05000339/LER-1982-002-03, /03L-0:on 820110,during Mode 1 Operation at 20% Power,C Reactor Coolant Loop Flow Lost.Caused by Loss of Power During Transfer from Reserve Transformer.Unit Tripped Manually & Pump Restarted When Power Restored (← links)
- 05000339/LER-1982-002, Forwards LER 82-002/03L-0 (← links)
- 05000339/LER-1982-004-03, /03L-0:on 820110,containment Isolation Steam Operator Blowdown Valve TV-BD-200C Would Not Remain Closed from Control Room.Caused by Excessive Moisture in Limit Switch Housing.Housing Drained (← links)
- 05000339/LER-1982-004, Forwards LER 82-004/03L-0 (← links)
- 05000339/LER-1982-001-03, /03L-0:on 820101,RCS Leakage Increased to 15-30 Gpm.Caused by Missing Packing on RHR Isolation Valve. Packing Had Deteriorated & Passed Through Valve Leadoff Line.Valve Repacked,Leak Tested & Returned to Svc (← links)
- 05000339/LER-1982-001, Forwards LER 82-001/03L-0 (← links)
- 05000339/LER-1980-037-03, /03X-1:on 800807,sample Analysis Indicated High Boron Concentration in a & C SI Accumulators.Caused by Leakage Into Makeup Supply Header from Spent Fuel Pit. Accumulator Partially Drained & Refilled (← links)
- 05000339/LER-1981-089, Forwards LER 81-089/03L-0 (← links)
- 05000339/LER-1981-071-03, /03X-1:on 810911,hydraulic Snubber on Main Steam Line Inoperable Due to Loss of Oil from Reservoir.Caused by Leak Due to Scored Brass Bushing on Piston Shaft Extending Through Cylinder End.Snubbers Purged & Refilled (← links)
- 05000339/LER-1981-071, Forwards LER 81-071/03X-1 (← links)
- 05000339/LER-1981-066-03, Boron Concentration in 1C Safety Injection Accumulator Exceeded Max Tech Specs Limit. Caused by Inleakage Into Makeup Supply Header from Spent Fuel Pit.Concentration Restored by Draining Accumulator (← links)
- 05000339/LER-1981-066, Forwards Updated LER 81-066/03X-1 (← links)
- 05000339/LER-1981-070-03, Boron Concentration in Safety Injection Accumulators Exceeded Tech Specs.Caused by Leakage Into Makeup Supply Header from Spent Fuel Pit. Accumulator Refilled W/Borated Water (← links)
- 05000339/LER-1981-087-03, /03L-0:on 811203,while in Mode 1 Operation,Fire Doors from Cable Vault to Auxiliary Bldg & Rod Drive Room Would Not Close Automatically.Caused by Failure of Automatic Closure Mechanism.Closure Mechanism Replaced (← links)
- 05000339/LER-1981-087, Forwards LER 81-087/03L-0 (← links)
- 05000339/LER-1981-070, Forwards Updated LER 81-070/03X-1 (← links)
- 05000339/LER-1981-078, Updated LER 81-078/03X-1:on 811008-29,boron Concentration in Safety Injection Accumulators,Exceeded Tech Specs.Caused by Leakage Into Makeup Supply Header from Spent Fuel Pit. Accumulator Refilled W/Borated Water (← links)
- 05000339/LER-1981-088-01, /01T-0:on 811209,reactor Was Taken Critical from Mode 3 to Mode 2 W/Solid State Protection Train B Trip Functions Defeated.Caused by Apparent Auxiliary Contact Failure (← links)
- 05000339/LER-1981-088, Forwards LER 81-088/01T-0 (← links)
- 05000339/LER-1981-086-03, /03L-0:on 811126,axial Flux Difference Deviated from Target During Performance of Moderator Temp Coefficient Test.Caused When Tave Was Reduced by Boration for Measurement of Moderator Coefficient Causing Oscillation (← links)
- 05000339/LER-1981-086, Forwards LER 81-086/03L-0 (← links)
- 05000339/LER-1981-085-03, /03L-0:on 811112,boron Concentration in Casing Cooling Tank Found Out of Spec High.Caused by Use of Better Method for Analyzing Boron Samples.Tank Partially Drained, Filled W/Unboronated Water & Placed on Recirculation (← links)
- 05000339/LER-1981-085, Forwards LER 81-085/03L-0 (← links)
- 05000339/LER-1981-083-03, /03L-0:on 811106,fire Boundary Door to Emergency Diesel Generator Room 2H Found Inoperable.Caused by Failure of Door Latching Mechanism Due to Excessive Wear.Fire Watch Posted & Mechanism Repaired (← links)
- 05000339/LER-1981-072-03, Rod Position Indication for Rod B-8 in Bank D Indicated Greater That in 12 Steps Below Group Demand Position for That Bank.Caused by Instrument Drift.Channel Adjusted (← links)
- 05000339/LER-1981-083, Forwards LER 81-083/03L-0 (← links)
- 05000339/LER-1981-072, Forwards Updated LER 81-072/03X-1 (← links)
- 05000339/LER-1981-084-03, /03L-0:on 811112,card Reader Latch on Fire Door from Emergency Diesel Generator Room 2J Into Turbine Bldg Failed Open.Cause Not Given.Latch Repaired (← links)
- 05000339/LER-1981-084, Forwards LER 81-084/03L-0 (← links)
- 05000339/LER-1993-001-02, :on 930322,discovered That power-range Nuclear Instrument Inoperable for More than 1 H W/O Being Placed in Trip.Caused by Inadequate self-check & Personnel Error.Channel Placed in Trip Condition (← links)
- 05000339/LER-1981-082-03, Discovered That Periodic Test for Tech Spec Heat Tracing Circuits Not Performed within Required Surveillance Interval.Caused by Test Being Inadvertently Indicated as Completed (← links)
- 05000339/LER-1981-082, Forwards Updated LER 81-082/03X-1 (← links)
- 05000339/LER-1981-080-03, /03L-0:on 811103,indication for Rod P-06 in Control Bank a Did Not Change When Bank Moved in 18 Steps. Caused by Bad Fuse Connection.Fuse Clip Replaced & Tightened & Surveillance Test Performed Satisfactorily (← links)
- 05000339/LER-1981-080, Forwards LER 81-080/03L-0 (← links)
- 05000339/LER-1981-081-03, /03L-0:on 811022,23 & 30,containment Particulate Radiation Monitor RMS 259 Removed from Svc After Failing Low.First Event Caused by Failed Detector.Second & Third by Faulty Connection on Field End of Detector Cable (← links)
- 05000339/LER-1981-081, Forwards LER 81-081/03L-0 (← links)
- 05000339/LER-1981-079-03, /03L-0:on 811103,delta Flux Exceeded 15% of Target Flux Difference.Caused by Withdrawal of Control Rods in Preparation for Monthly Control Rod Operability Surveillance.Rods Driven Back,Returning Flux to Target Band (← links)
- 05000339/LER-1981-079, Forwards LER 81-079/03L-0 (← links)
- 05000339/LER-1981-073-03, /03L-0:on 811029,only 83 of 84 Air Bottles Found Aligned for Discharge.Cause Unknown.Air Sys Realigned & Personnel Reinstructed (← links)
- 05000339/LER-1981-073, Forwards LER 81-073/03L-0 (← links)
- 05000339/LER-1981-078-03, /03L-0:on 811008-29,boron Concentration in Safety Injection Accumulator Went Higher than Max Limit.Caused by Inleakage Into Makeup Supply Header from Spent Fuel Pit. Boron Concentration Restored by Recirculation W/Rwst (← links)
- 05000339/LER-1981-068-03, /03L-0:on 810930,fire Door Reported to Have Been Nonfunctional for 6-day Period.On 811003,door Again Found Blocked Open.Caused by Failed Lock Assembly.Fire Watch Posted.Lock Replaced After Second Event (← links)
- 05000339/LER-1981-068, Forwards LER 81-068/03L-0 (← links)
- 05000339/LER-1981-075-03, /03L-0:on 811003,during Hot Standby,Containment Isolation Trip Valve Failed to Close Upon Receipt of Phase a Containment Isolation Signal.Cause Unknown.Valve Cycled Properly & Penetration Returned to Normal (← links)
- 05000339/LER-1981-075, Forwards LER 81-075/03L-0 (← links)
- 05000339/LER-1981-074-03, /03L-0:on 811004,during Mode 2,12-h Surveillance Procedure Radiation Monitoring Equipment Check Not Performed within Required Interval.Caused by Personnel Error Due to Heavy Work Load from Safety Injection on Previous Shift (← links)
- 05000339/LER-1981-074, Forwards LER 81-074/03L-0 (← links)
- 05000339/LER-1981-076-99, /99L-0:on 811003,safety Injection & Reactor Trip Occurred Due to Inadvertent Opening of Steam Dump Valves. Safety Injection Caused by Hi Steam Flow & Lo Lotemp Average Due to Steam Header Pressure Controller High Signal (← links)
- 05000339/LER-1981-076, Forwards LER 81-076/99L-0 (← links)
- 05000339/LER-1981-077-03, /03L-0:on 810920,axial Flux Difference Deviated Greater than 5% from Target for Max Duration of One Minute While Returning to Full Power Following Reactor Trip.Caused by Xenon Instability During Recovery from Reactor Trip (← links)
- 05000339/LER-1981-077, Forwards LER 81-077/03L-0 (← links)
- 05000339/LER-1981-069-03, /03L-0:on 810908,during Functional Testing,High Negative Neutron Flux Rate Trip Setting for Power Range Channel N-41 Exceeded Tech Spec Setpoint.Caused by Instrument Setpoint Drift.Bistable for N-41 Recalibr (← links)
- 05000339/LER-1981-069, Forwards LER 81-069/03L-0 (← links)
- 05000339/LER-1981-067-03, /03L-0:on 810902,fire Door 54/13 Between Chiller Room & Fan Room Found Inoperable.Caused by Interference W/ Door Frame & Improperly Adjusted Closing Mechanism.Fire Watch Immediately Posted & Door Adjusted (← links)
- 05000339/LER-1981-067, Forwards LER 81-067/03L-0 (← links)
- 05000339/LER-1981-059-03, /03L-0:on 810730,while in Mode 3,Train B of Outside Recirculation Spray Subsystem Was Removed to Repair Remote Operator on Valve MOV-RS-256B.Caused by Necessary Maint.Subsystem Returned to Svc After Repair Completed (← links)
- 05000339/LER-1981-059, Forwards LER 81-059/03L-0 (← links)
- 05000339/LER-1981-058-03, /03L-0:on 810725,reserve Station Svc Bus B de-energized.Caused by Main Transformer C Faulting & Damaging Ground Arrestor Insulator,Allowing Ground Arrestor to Lean Towards Svc Bus B Overhead Line (← links)
- 05000339/LER-1981-058, Forwards LER 81-058/03L-0 (← links)
- 05000339/LER-1981-057-03, /03L-0:on 810720,during Hot Standby,Discovered 2H Emergency Generator Acceleration Untested & Offsite Power Not Verified within Tech Specs Limits.Caused by Procedural Error.Acceleration & Power Verified on 810720 (← links)
- 05000339/LER-1981-057, Forwards LER 81-057/03L-0 (← links)
- 05000339/LER-1994-007, :on 931014,high Head Safety Injection Flow Balance Testing Found to Be Below TS Requirement.Caused by Unaccounted for Uncertainties.Cold Leg Safety Injection Leg Throttle Valve Adjusted (← links)
- 05000339/LER-1983-016-03, /03L-0:on 830115 & 16,both Open & Closed Containment Isolation Valves TV-SI-200 & TV-CC-204C,train a Position Indication Lights Found Lit.Caused by Leaking Steam Generator Chemical Feed Line Vent Valve (← links)
- 05000339/LER-1983-016, Forwards LER 83-016/03L-0 (← links)
- 05000339/LER-1983-002, Forwards LER 83-002/03L-0 (← links)
- 05000339/LER-1983-011-03, /03L-0:on 821119,individual Rod Position Indication Deviated from Group Demand Position by Greater than 12 Steps.Caused by Instrument Drift.Indicator Channel for Rods B-09 & 02 & F-06 Recalibr (← links)
- 05000339/LER-1983-011, Forwards LER 83-011/03L-0 (← links)
- 05000339/LER-1983-008-03, /03L-0:on 830107,during Mode 3,individual Rod Position Indication Deviated from Group Demand Position by Greater than 12 Steps While Withdrawing Shutdown Bank B. Caused by Instrument Drift.Rods Recalibr (← links)
- 05000339/LER-1983-008, Forwards LER 83-008/03L-0 (← links)
- 05000339/LER-1982-085, Forwards LER 82-085/03L-0 (← links)
- 05000339/LER-1982-084-03, /03L-0:on 821216,during Full Power,Input from Range Nuclear Instrument N-42 to Comparator Drawer N-50 Was in Defeat.Caused by Failure to Take N-42 Out of Defeat After Deviation Alarm Determination.Operators to Be Reinstructe (← links)
- 05000339/LER-1982-084, Forwards LER 82-084/03L-0 (← links)
- 05000339/LER-1982-083-03, /03L-0:on 821213,emergency Diesel Generator 2J Removed from Svc.Caused by Failure of 40X Unexcitation Alarm Relay Coil.Carbon Deposits & Arcing Damage of 40/76 Relay Contact Prevented Good Contact (← links)
- 05000339/LER-1982-083, Forwards LER 82-083/03L-0 (← links)
- 05000339/LER-1982-071-03, /03L-0:on 821027,control Power for B Casing Cooling Pump Found de-energized.Caused by Opened Circuit Breaker Unintentionally Disturbed by Workers.Circuit Breaker Closed & Power Verified (← links)
- 05000339/LER-1982-071, Forwards LER 82-071/03L-0 (← links)
- 05000339/LER-1982-068-03, /03L-0:on 821018,while in Mode 1,operability of Offsite Electrical Power Sources Not Verified Prior to Removing 2J Emergency Diesel Generator from Svc.Caused by Personnel Error & Procedural Inadequacy (← links)
- 05000339/LER-1982-068, Forwards LER 82-068/03L-0 (← links)
- 05000339/LER-1982-064-03, /03L-0:on 821012,while in Mode 1,intermediate Range Channel N-35 Failed Low.Caused by Failed Log Current Amplifier Module.Module Replaced,Tested Satisfactorily & Restored to Svc (← links)
- 05000339/LER-1982-064, Forwards LER 82-064/03L-0 (← links)
- 05000339/LER-1982-056-03, /03L-0:on 820926,breaker for Chemical Addition Tank Train a Discharge Valve MOV-QS-202A Found in Off Position.Caused by Omission of Procedure When Securing Quench Spray Pump 2-QS-P-1A.Breaker Energized (← links)
- 05000339/LER-1982-056, Forwards LER 82-056/03L-0 (← links)
- 05000339/LER-1982-058-03, /03L-0:on 820830,inner Personnel Hatch Door Determined to Have Unacceptable Leak Rate.Caused by Seal Being Dirty from Containment Entries.Seal Cleaned & Lubricated (← links)
- 05000339/LER-1982-058, Forwards LER 82-058/03L-0 (← links)
- 05000339/LER-1982-054-03, /03L-0:on 820823,fire Door S71-18 Between 2H Emergency Diesel Generator & Turbine Bldg Would Not Latch & Lock.Caused by out-of-adjustment & Sticking Latch.Latch Adjusted & Lubricated & Operability of Door Verified (← links)
- 05000339/LER-1982-054, Forwards LER 82-054/03L-0 (← links)
- 05000339/LER-1982-057, Forwards LER 82-057/03L-0 (← links)
- 05000339/LER-1982-053-03, /03L-0:on 820822 & 27,C Reserve Station Svc Bus de-energized to Remove Oil Sprayed on Tubular Bus,Feeder Cables & Insulators During Phase B Main Transformer Fault. Caused by Manual Shutoff to Prevent Fire (← links)
- 05000339/LER-1982-053, Forwards LER 82-053/03L-0 (← links)
- 05000339/LER-1982-051-03, /03L-0:on 820820 & 28,nitrogen Pressure in PORV Reservoir Dropped Below Min Pressure Required to Consider PORV Operable.Caused by Rapid Depletion of Nitrogen Supply Due to Leak in Nitrogen Supply Piping (← links)
- 05000339/LER-1982-051, Forwards LER 82-051/03L-0 (← links)
- 05000339/LER-1983-044-03, /03L-0:on 830526,during Mode 3,one Recirculation Valve on Each of Two Casing Cooling Pumps Found Open.Caused by Procedure Inadequacy.Valves Closed Immediately.Maint Procedure Will Be Revised (← links)
- 05000339/LER-1983-045-03, /03L-0:on 830614,Fire Door S71-18,between Emergency Diesel Generator Room 2H & Turbine Bldg,Would Not Latch & Lock.Caused by Stuck Latch.Latch Adjusted & Lubricated.Door Designs Modified (← links)
- 05000339/LER-1983-047-03, /03L-0:on 830530,emergency Diesel Generator 2J Tripped on High Crankcase Pressure During Surveillance Testing.Cause Not Determined.Diesel Tested Satisfactorily (← links)
- 05000339/LER-1983-048-03, /03L-0:on 830606 & 17,intermediate Range Channels N35 & N36 High Neutron Flux Reactor Trip Setpoints Exceeded Tech Spec Requirements.Caused by Administrative Error. Setpoints Reduced (← links)
- 05000339/LER-1983-032-03, /03L-0:on 830412,during Mode 5,visual Insp of Hydraulic Snubber 2-WGCB-HSS-3B Revealed Damaged Reservoir W/O Fluid.Caused by Personnel Working in Area.Snubber Replaced (← links)
- 05000339/LER-1983-032, Forwards LER 83-032/03L-0 (← links)
- 05000339/LER-1983-029-03, /03L-0:on 830402,during Mode 4,automatic Actuation of ECCS Occurred.Caused by Maint Personnel Standing on Conduit Resulting in Loss of lo-lo Pressurizer Pressure Safety Injection Block.Maint Personnel Reinstructed (← links)
- 05000339/LER-1983-029, Forwards LER 83-029/03L-0 (← links)
- 05000339/LER-1990-001-02, :on 900215,inadvertent Partial Train a ESF Actuation of Containment Depressurization Sys Occurred. Caused by Human Error.Evaluation to Be Performed to Determine If Test Points Can Be Moved (← links)
- 05000339/LER-1981-065-03, /03L-0:on 810814,power Range Channel N-41 Bistable Setpoints for Low & High Range Overpower Reactor Trips & for Permissives P-8 & P-10 Overpower Trips Were Found High. Probably Caused by Incorrect Calibr.Channel Recalibr (← links)
- 05000339/LER-1981-065, Forwards LER 81-065/03L-0 (← links)
- 05000339/LER-1981-064-03, /03L-0:on 810813,steam Turbine Driven Auxiliary Feedpump Failed to Operate Properly During Periodic Surveillance Test.Caused by Failed Speed Control Governor. Governor Replaced & Pump Retested Satisfactorily (← links)
- 05000339/LER-1981-064, Forwards LER 81-064/03L-0 (← links)
- 05000339/LER-1981-061-03, /03L-0:on 810808,boric Acid Storage Tank C Found to Contain Low Boron Concentration.Caused by Placing Tank on Recirculation W/Boron Injection Tank Which Contained Low Boron Concentration Due to Inadvertent Safety Injection (← links)
- 05000339/LER-1981-061, Forwards LER 81-061/03L-0 (← links)
- 05000339/LER-1981-062-03, /03L-0:on 810810,inadvertent Actuation of ECCS Train B Occurred,Resulting in Borated Water Concentration in Injection Tank Dropping Below Tech Spec Limit.Caused by Defective Low Pressurizer Reset & Block Switch (← links)
- 05000339/LER-1981-062, Forwards LER 81-062/03L-0 (← links)
- 05000339/LER-1981-060-03, /03L-0:on 810808,instrument Technician Misaligned Switch During Solid State Protection Testing,Resulting in Train B Safety Injection.Caused by Failure to Follow Written Procedures.Personnel Instructed to Adhere to Procedures (← links)
- 05000339/LER-1981-060, Forwards LER 81-060/03L-0 (← links)
- 05000339/LER-1981-063-03, /03L-0:on 810806 & 17,pressure in Both Pressurizer Power Operated Relief Valve Nitrogen Supply Tanks Dropped Below Design Basis Limit for Low Temp RCS Overpressurization Protection.Caused by Leaks in Both Supply Sys (← links)
- 05000339/LER-1981-063, Forwards LER 81-063/03L-0 (← links)
- 05000339/LER-1981-056-03, /03L-0:on 810702,channel TE-2432D in Tave Protection Loop 2 Failed in High Direction.Cause Unknown. Failed Resistance Temp Detector Removed from Svc & Spare (TE-2432C) Installed (← links)
- 05000339/LER-1981-056, Forwards LER 81-056/03L-0 (← links)
- 05000339/LER-1981-053-03, /03L-0:on 810701,one of Two Parallel Steam Supply Valves Failed to Close Completely &,On 810703,other Valve Failed to Completely Close.Caused by Contaminants & Corrosion Products Causing Piston to Stick (← links)
- 05000339/LER-1981-053, Forwards LER 81-053/03L-0 (← links)
- 05000339/LER-1981-049-03, /03L-0:on 810612,during Periodic Test,Casing Cooling Pump 2-RS-P-3A Tripped.Caused by Power Supply Breaker Opening on Overcurrent Due to Excessive Load Created by Misalignment of Bearing Holders & Caps.Bearings Aligned (← links)
- 05000339/LER-1981-049, Forwards LER 81-049/03L-0 (← links)
- 05000339/LER-1981-047-03, /03L-0:on 810609,solid State Protection Sys Train B Stop Valve Generator Trip Logic Failed to Meet Acceptance Criteria.Caused by Faulty Universal Card A404. Card Replaced & Logic Channel Returned to Svc (← links)
- 05000339/LER-1981-047, Forwards LER 81-047/03L-0 (← links)
- 05000339/LER-1981-054-03, /03L-0:on 810629,train J of Onsite Ac Power Sys Discovered Not Tested Per Tech Specs Since 790316.Caused by Mistaken Impression That Both Buses Were Retested on 800331.Emergency Bus J Tested on 800331 (← links)
- 05000339/LER-1981-054, Forwards LER 81-054/03L-0 (← links)
- 05000339/LER-1981-052-03, /03L-0:on 810619,nuclear Instrumentation Channel N-35 Observed to Be Reading Low & Erratic W/Unit Recovering from Turbine Trip.Caused by Failure of High Voltage Power Supply.Power Supply Replaced (← links)
- 05000339/LER-1981-052, Forwards LER 81-052/03L-0 (← links)
- ML052780043 (redirect page) (← links)
- 05000338/LER-2005-001, Regarding Condition Prohibited by Technical Specification - Low Temperature Overpressure Protection (← links)