| | | Reporting criterion |
|---|
| 05000259/LER-1995-001-04, :on 950629,EECW Pump Auto Started During Performance of SI as Result of Jumpering Wrong Relay Contacts Due to Personnel Error.Field Wiring for EECW Pump B1 Modified |
- on 950629,EECW Pump Auto Started During Performance of SI as Result of Jumpering Wrong Relay Contacts Due to Personnel Error.Field Wiring for EECW Pump B1 Modified
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(B) 10 CFR 50.73(a)(2)(1) |
| 05000260/LER-1995-001, :on 950123,DG Turbocharger Failure Resulted in Noncompliance W/Ts Lco.Instituted Vibration Monitoring Program for EDG Turbochargers |
- on 950123,DG Turbocharger Failure Resulted in Noncompliance W/Ts Lco.Instituted Vibration Monitoring Program for EDG Turbochargers
| 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000260/LER-1995-001-01, Forwards LER 95-001-01 Re EDG Turbocharger Failure.Util Completed Failure Analysis & Decided Most Probable Cause of Turbocharger Failure Was Tooth Bending Fatigue on Planetary Sun Gear | Forwards LER 95-001-01 Re EDG Turbocharger Failure.Util Completed Failure Analysis & Decided Most Probable Cause of Turbocharger Failure Was Tooth Bending Fatigue on Planetary Sun Gear | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000296/LER-1995-001-03, :on 950615,under-voltage Condition Occurred on Shutdown Boards,Automatically Starting Edgs.Caused by Loss of Athens 161 Kv Line.Edgs Placed in Standby & Power Restored to Buses |
- on 950615,under-voltage Condition Occurred on Shutdown Boards,Automatically Starting Edgs.Caused by Loss of Athens 161 Kv Line.Edgs Placed in Standby & Power Restored to Buses
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) |
| 05000260/LER-1995-002, :on 950209,reactor Scram Resulting from Turbine Trip Due to Sensed Generator Load Unbalance Condition Caused Actuation of ESF Sys.Caused by Leaking Cooling Water Line. Leaking Cooling Water Line Replaced |
- on 950209,reactor Scram Resulting from Turbine Trip Due to Sensed Generator Load Unbalance Condition Caused Actuation of ESF Sys.Caused by Leaking Cooling Water Line. Leaking Cooling Water Line Replaced
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000296/LER-1995-002-03, :on 950710,DG 3D Auto Started Due to Personnel Error.Work Was Stopped & DGs Shut Down |
- on 950710,DG 3D Auto Started Due to Personnel Error.Work Was Stopped & DGs Shut Down
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000260/LER-1995-003-01, Forwards LER 95-003-01 Re Main Steam Safety/Relief Valves Exceeding TS Setpoint Limit During Tests | Forwards LER 95-003-01 Re Main Steam Safety/Relief Valves Exceeding TS Setpoint Limit During Tests | 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications |
| 05000296/LER-1995-003-03, :on 950901,DGs Auto Start Occurred Due to Personnel Error During Performance of Common Accident Signal Logic Surveillance.Secured DGs & EECW Pump & Counseled Electricians to Further Emphasize Need to Be More Cautious |
- on 950901,DGs Auto Start Occurred Due to Personnel Error During Performance of Common Accident Signal Logic Surveillance.Secured DGs & EECW Pump & Counseled Electricians to Further Emphasize Need to Be More Cautious
| 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(s)(2)(ii) 10 CFR 50.73(s)(2)(v) 10 CFR 50.73(s)(2)(viii)(B) 10 CFR 50.73(s)(2)(viii)(A) |
| 05000260/LER-1995-003-02, Forwards LER 95-003-02 Re Unit 2 SRVs Exceeding TS Setpoint Limit During Tests Performed During Unit 2 Cycle 7 Refueling Outage | Forwards LER 95-003-02 Re Unit 2 SRVs Exceeding TS Setpoint Limit During Tests Performed During Unit 2 Cycle 7 Refueling Outage | |
| 05000296/LER-1995-003, Forwards LER 95-003-00,providing Details Concerning Auto Start of Unit 3 DGs | Forwards LER 95-003-00,providing Details Concerning Auto Start of Unit 3 DGs | 10 CFR 50.73(a)(2)(iv), System Actuation |
| 05000260/LER-1995-003, :on 950301,Unit 2 Main Steam SRVs Failed Setpoint Acceptance Tests.Caused by Corrosion Bonding of SRV Pilot Disc/Seat Interface Resulting in Upward Setpoint Drift.Valves Currently Being Retested & Recertified |
- on 950301,Unit 2 Main Steam SRVs Failed Setpoint Acceptance Tests.Caused by Corrosion Bonding of SRV Pilot Disc/Seat Interface Resulting in Upward Setpoint Drift.Valves Currently Being Retested & Recertified
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(B) |
| 05000260/LER-1995-004, :on 950330,reactor Scram Resulted from Personnel Error During Surveillance Testing Caused Actuation of ESF Sys.Operations Personnel Brought Plant to Shutdown Condition |
- on 950330,reactor Scram Resulted from Personnel Error During Surveillance Testing Caused Actuation of ESF Sys.Operations Personnel Brought Plant to Shutdown Condition
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000296/LER-1995-004-03, :on 951007,unplanned ESF Actuation Occurred Following Transfer of 480 Volt Shutdown Board 3A to Alternate Supply.Caused by Personnel Error.Rps Restored & Sys Returned to Normal |
- on 951007,unplanned ESF Actuation Occurred Following Transfer of 480 Volt Shutdown Board 3A to Alternate Supply.Caused by Personnel Error.Rps Restored & Sys Returned to Normal
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000296/LER-1995-005-03, :on 951013,RHR Injection Valve Was Inadvertently Closed as Result of Personnel Error.Briefed & Counseled Personnel Involved |
- on 951013,RHR Injection Valve Was Inadvertently Closed as Result of Personnel Error.Briefed & Counseled Personnel Involved
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(viii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(1) |
| 05000260/LER-1995-005-01, :on 950607,HPCI Steam Supply Valve Failed During Testing Due to Failure of HPCI Steam Supply Valve to Open During Initial Start of Flow Test.Issued Maint Work Order to Investigate & Determine Cause of Valve Failure |
- on 950607,HPCI Steam Supply Valve Failed During Testing Due to Failure of HPCI Steam Supply Valve to Open During Initial Start of Flow Test.Issued Maint Work Order to Investigate & Determine Cause of Valve Failure
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) |
| 05000296/LER-1995-006-03, :on 951030,scram Discharge Instrument Vol Vent & Drain Valves Failed to Close After Reactor Mode Switch Was Placed in Shutdown Position.Caused by Dogged Open SDIV Vent & Drain Valves.Valves Undogged |
- on 951030,scram Discharge Instrument Vol Vent & Drain Valves Failed to Close After Reactor Mode Switch Was Placed in Shutdown Position.Caused by Dogged Open SDIV Vent & Drain Valves.Valves Undogged
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000260/LER-1995-006-01, :on 950814,excess Flow Check Valve Was Not Tested Per TS Requirements Due to Drawing Deficiency. Containment Isolation Valve 2-RTV-3-240A Was Closed to Isolate Sensing Line |
- on 950814,excess Flow Check Valve Was Not Tested Per TS Requirements Due to Drawing Deficiency. Containment Isolation Valve 2-RTV-3-240A Was Closed to Isolate Sensing Line
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) |
| 05000260/LER-1995-006, Forwards LER 95-006 Which Provides Details Concerning TS Required Valve Operability Test That Was Performed on Unit 2 Excess Flow Check Valve | Forwards LER 95-006 Which Provides Details Concerning TS Required Valve Operability Test That Was Performed on Unit 2 Excess Flow Check Valve | |
| 05000260/LER-1995-007-01, :on 950819,reactor Scram Occurred from Turbine Trip on Low Main Condenser Vacuum Due to Isolation of Steam Jet Air Ejectors Because of High Offgas Temp |
- on 950819,reactor Scram Occurred from Turbine Trip on Low Main Condenser Vacuum Due to Isolation of Steam Jet Air Ejectors Because of High Offgas Temp
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000260/LER-1995-007, Forwards LER 95-007,providing Details Concerning Unit 2 Reactor Scram | Forwards LER 95-007,providing Details Concerning Unit 2 Reactor Scram | 10 CFR 50.73(a)(2)(iv), System Actuation |
| 05000296/LER-1995-007-02, :on 951108,unplanned Esfa Occurred Following Transfer of 480V Rmov Board 3B to Normal Power Supply After Temporary Normal Supply Breaker Was Replaced.Caused by Faulty Amptector Trip Actuator |
- on 951108,unplanned Esfa Occurred Following Transfer of 480V Rmov Board 3B to Normal Power Supply After Temporary Normal Supply Breaker Was Replaced.Caused by Faulty Amptector Trip Actuator
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) |
| 05000260/LER-1995-008, :on 951004,reactor Zone Isolation Dampers Failed to Close.Caused by Black Residue on core-plugnut Interface Inside Solenoid Valves.Removed/Replaced Solenoid Valves |
- on 951004,reactor Zone Isolation Dampers Failed to Close.Caused by Black Residue on core-plugnut Interface Inside Solenoid Valves.Removed/Replaced Solenoid Valves
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) 10 CFR 50.73(a)(2)(viii)(B) |
| 05000296/LER-1995-008-02, :on 951228,core Thermal Power Exceeded Operating License Maximum Power Level Due to Drifting Temp Transmitter.Reduced Reactor Power |
- on 951228,core Thermal Power Exceeded Operating License Maximum Power Level Due to Drifting Temp Transmitter.Reduced Reactor Power
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2)(viii) |
| 05000260/LER-1995-008-01, :on 951004,reactor Zone Isolation Dampers Failed to Close Due to Black Residue on core-plugnut Interface Inside Solenoid Valves.Removed & Replaced Solenoids & Increased Test Frequency When Dampers Failed |
- on 951004,reactor Zone Isolation Dampers Failed to Close Due to Black Residue on core-plugnut Interface Inside Solenoid Valves.Removed & Replaced Solenoids & Increased Test Frequency When Dampers Failed
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(i) 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(A) |
| 05000260/LER-1995-009-01, :on 951115,torus Water Level Exceeded TS Limit. Caused by Past Engineering Calculational Errors.Engineering Personnel Verified & Setpoint Calculations Revised |
- on 951115,torus Water Level Exceeded TS Limit. Caused by Past Engineering Calculational Errors.Engineering Personnel Verified & Setpoint Calculations Revised
| 10 CFR 50.73(a)(2)(v), Loss of Safety Function 10 CFR 50.73(a)(2)(vii), Common Cause Inoperability 10 CFR 50.73(a)(2)(iv), System Actuation 10 CFR 50.73(a)(2)(i)(B), Prohibited by Technical Specifications 10 CFR 50.73(a)(2)(x) 10 CFR 50.73(a)(2)(iii) 10 CFR 50.72(b)(3)(ii), Degraded or Unanalyzed Condition 10 CFR 50.73(a)(2) 10 CFR 50.73(a)(2)(viii)(B) |