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| 05000266/LER-1983-001, Forwards LER 83-001/03L-0 | Forwards LER 83-001/03L-0 | |
| 05000266/LER-1983-001-03, /03L-0:on 830104,during Normal Operation,Panel D-400 Became Inoperable.Caused by Failed Power Supply.Power Supply Replaced W/Upgraded Components | /03L-0:on 830104,during Normal Operation,Panel D-400 Became Inoperable.Caused by Failed Power Supply.Power Supply Replaced W/Upgraded Components | |
| 05000301/LER-1983-001-03, /03L-0:on 830316,while Performing Tech Spec Test TS-11,primary Boric Acid Heat Trace Circuit 2-P136 Discovered Inoperable.Caused by Failed Thermon Model SCR Circuit Controller.Circuit Controller Replaced | /03L-0:on 830316,while Performing Tech Spec Test TS-11,primary Boric Acid Heat Trace Circuit 2-P136 Discovered Inoperable.Caused by Failed Thermon Model SCR Circuit Controller.Circuit Controller Replaced | |
| 05000301/LER-1983-001, Forwards LER 83-001/03L-0 | Forwards LER 83-001/03L-0 | |
| 05000266/LER-1983-002-01, /01T-0:on 830308,emergency Diesel 3D Failed to Start During Testing.On 830309,diesel Declared out-of-svc, Then Successfully Started.Caused by Faulty Type UG8 Woodward Governor.Procedures Revised Pending Replacement | /01T-0:on 830308,emergency Diesel 3D Failed to Start During Testing.On 830309,diesel Declared out-of-svc, Then Successfully Started.Caused by Faulty Type UG8 Woodward Governor.Procedures Revised Pending Replacement | |
| 05000301/LER-1983-002, Forwards LER 83-002/01T-0 | Forwards LER 83-002/01T-0 | |
| 05000301/LER-1983-003-01, /01T-0 Has Been Cancelled | /01T-0 Has Been Cancelled | |
| 05000266/LER-1983-004-03, /03L-0:on 830621,breaker Serving MOV-826B Found Open During Normal Operation & Redundant Valve MOV-826C Not Tested Prior to Disabling MOV-826B.Probably Caused by Personnel Accidentally Opening Breaker | /03L-0:on 830621,breaker Serving MOV-826B Found Open During Normal Operation & Redundant Valve MOV-826C Not Tested Prior to Disabling MOV-826B.Probably Caused by Personnel Accidentally Opening Breaker | |
| 05000301/LER-1983-004-01, /01T-0:on 830409,during Type B & C Leakage Test, Total as-found Leakage Exceeded Tech Spec Limit.Valve 755A Stuck Open Causing Leakage.Followup Valve Maint Did Not Identify Cause of Failure | /01T-0:on 830409,during Type B & C Leakage Test, Total as-found Leakage Exceeded Tech Spec Limit.Valve 755A Stuck Open Causing Leakage.Followup Valve Maint Did Not Identify Cause of Failure | |
| 05000266/LER-1983-005-03, /03L-0:on 830628,control Operator Discovered 1PORV-430 Had No Position Indication on Main Control Board Due to Open Molded Circuit Breaker.Cause Unknown.Breaker Closed & Indication to 1PORV-430 Restored | /03L-0:on 830628,control Operator Discovered 1PORV-430 Had No Position Indication on Main Control Board Due to Open Molded Circuit Breaker.Cause Unknown.Breaker Closed & Indication to 1PORV-430 Restored | |
| 05000301/LER-1983-005-01, /01T-0:on 830428,body-to-bonnet Leak on a Loop RTD Bypass Isolation Valve RC-559A & Boric Acid Wastage of Four Studs Discovered.Leakage Caused Stud Wastage.Studs & Nuts Replaced & Valve on Other Loop Examined | /01T-0:on 830428,body-to-bonnet Leak on a Loop RTD Bypass Isolation Valve RC-559A & Boric Acid Wastage of Four Studs Discovered.Leakage Caused Stud Wastage.Studs & Nuts Replaced & Valve on Other Loop Examined | |
| 05000266/LER-1983-006-03, /03L-0:on 830711,during Normal Operation,Min Frequency Requirements Dictating Measurement of Boron Concentration in Boric Acid & Refueling Water Storage Tanks Exceeded.Caused by Personnel Error | /03L-0:on 830711,during Normal Operation,Min Frequency Requirements Dictating Measurement of Boron Concentration in Boric Acid & Refueling Water Storage Tanks Exceeded.Caused by Personnel Error | |
| 05000301/LER-1983-006-03, /03L-0:on 830419,time Delay Setpoint of Contact from Time Delay Relay 2-TDRC/A06 & 4,160-volt Degraded Grid Voltage Relay 2-275/A06 Set Above Tech Spec Limit.Caused by Bumping or Mispositioning Time Set Knob | /03L-0:on 830419,time Delay Setpoint of Contact from Time Delay Relay 2-TDRC/A06 & 4,160-volt Degraded Grid Voltage Relay 2-275/A06 Set Above Tech Spec Limit.Caused by Bumping or Mispositioning Time Set Knob | |
| 05000266/LER-1983-007-01, /01T-0:on 830802,containment Isolation Valve 1CV-3200C in Suction Line of Containment Radioactive Gas & Particulate Monitoring Sys Failed to Close.Caused by Failure of Solenoid Valve to Cycle | /01T-0:on 830802,containment Isolation Valve 1CV-3200C in Suction Line of Containment Radioactive Gas & Particulate Monitoring Sys Failed to Close.Caused by Failure of Solenoid Valve to Cycle | |
| 05000301/LER-1983-007-01, /01T-0:on 830523,higher than Normal Levels of I-131 in Primary Coolant Prompted Investigation of Fuel Assemblies.Probably Caused by Fretting at Bottom Spring Clip Grid Elevation Optimized Fuel assemblies,ZD3 | /01T-0:on 830523,higher than Normal Levels of I-131 in Primary Coolant Prompted Investigation of Fuel Assemblies.Probably Caused by Fretting at Bottom Spring Clip Grid Elevation Optimized Fuel assemblies,ZD3 | |
| 05000301/LER-1983-008-01, /01T-0:on 830617,during Refueling,Containment Air Radiation Monitoring Sys Inoperable.Caused by Failed Sample Pump Due to Blown Fuse in Data Acquisition Monitor Circuit. Instrumentation Repaired | /01T-0:on 830617,during Refueling,Containment Air Radiation Monitoring Sys Inoperable.Caused by Failed Sample Pump Due to Blown Fuse in Data Acquisition Monitor Circuit. Instrumentation Repaired | |
| 05000266/LER-1983-008-01, /01T-0:on 830830,containment Isolation Valve 1CV-3200C in Suction Line of Containment Radioactive Gas & Particulate Monitoring Sys Failed to Close.Caused by 3-way Solenoid Valve Failing to Cycle | /01T-0:on 830830,containment Isolation Valve 1CV-3200C in Suction Line of Containment Radioactive Gas & Particulate Monitoring Sys Failed to Close.Caused by 3-way Solenoid Valve Failing to Cycle | |
| 05000301/LER-1983-009-03, /03L-0:on 830817,during Inservice Test IT-04,pump 2P10B Declared Out of Svc Due to High Bearing Vibration Levels.Cause of High Vibration Uncertain.Pump Replaced | /03L-0:on 830817,during Inservice Test IT-04,pump 2P10B Declared Out of Svc Due to High Bearing Vibration Levels.Cause of High Vibration Uncertain.Pump Replaced | |
| 05000266/LER-1983-009-01, /01T-0:on 831001,Type B & C Leakage Tests Performed During Outage & Total as-found Leakage Exceeded Tech Spec Limits.Caused by Foreign Matl on Valve Seating Surfaces.Valves Cleaned & Retested | /01T-0:on 831001,Type B & C Leakage Tests Performed During Outage & Total as-found Leakage Exceeded Tech Spec Limits.Caused by Foreign Matl on Valve Seating Surfaces.Valves Cleaned & Retested | |
| 05000301/LER-1983-010-03, /03L-0:on 830713,discovered Turbine Bldg Structure Was Interfering W/South Nonreturn Valve Operator Weight Assembly,Preventing Proper Valve Operation.Caused by Loose Weight Assembly Sleeve | /03L-0:on 830713,discovered Turbine Bldg Structure Was Interfering W/South Nonreturn Valve Operator Weight Assembly,Preventing Proper Valve Operation.Caused by Loose Weight Assembly Sleeve | |
| 05000266/LER-1983-010-03, /03L-0:on 830929,acceptance Test of Fire Detection Sys Found Remote Alarm Function Disabled for Fire Detectors in Auxiliary Feedwater Pump,Vital Switchgear & Cable Spreading Rooms.Caused by Wiring Work | /03L-0:on 830929,acceptance Test of Fire Detection Sys Found Remote Alarm Function Disabled for Fire Detectors in Auxiliary Feedwater Pump,Vital Switchgear & Cable Spreading Rooms.Caused by Wiring Work | |
| 05000301/LER-1983-011-03, RHR Pump 2P10B Declared Inoperable Due to High Bearing Vibration Levels.Unit Placed in Degraded Mode.Cause Uncertain.Failed Pump Replaced | RHR Pump 2P10B Declared Inoperable Due to High Bearing Vibration Levels.Unit Placed in Degraded Mode.Cause Uncertain.Failed Pump Replaced | |
| 05000266/LER-1983-011-03, /03L-0:on 831027,w/unit in Cold Shutdown,Insp of 4,160-volt Ac Breaker for Safety Injection Pump 1P15B Revealed Loose Wire in Lockout Relay Circuit 86.W/circuit Open,Electrical Protection Disabled | /03L-0:on 831027,w/unit in Cold Shutdown,Insp of 4,160-volt Ac Breaker for Safety Injection Pump 1P15B Revealed Loose Wire in Lockout Relay Circuit 86.W/circuit Open,Electrical Protection Disabled | |