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| 05000261/LER-1983-001, Forwards LER 83-001/01L-0 | Forwards LER 83-001/01L-0 | |
| 05000261/LER-1983-002, Forwards LER 83-002/03L-0 | Forwards LER 83-002/03L-0 | |
| 05000261/LER-1983-002-03, /03L-0:on 830215,safety Injection Pump a Tripped After Being Started for Routine Filling of Accumulators. Caused by Faulty Pump Breaker.Overcurrent Trip Device Replaced.Evaluation of Event Continuing | /03L-0:on 830215,safety Injection Pump a Tripped After Being Started for Routine Filling of Accumulators. Caused by Faulty Pump Breaker.Overcurrent Trip Device Replaced.Evaluation of Event Continuing | |
| 05000261/LER-1983-003-01, /01T-0:on 830410,svc Water Leak Discovered on Containment Fan Cooler HVH-3.Caused by Corrosion/Erosion of Cooler Tubing.Leak Repaired | /01T-0:on 830410,svc Water Leak Discovered on Containment Fan Cooler HVH-3.Caused by Corrosion/Erosion of Cooler Tubing.Leak Repaired | |
| 05000261/LER-1983-003, Forwards LER 83-003/01T-0 | Forwards LER 83-003/01T-0 | |
| 05000261/LER-1983-005-01, /01T-0:on 830424,svc Water Booster Pump B Declared Inoperable Due to Loss of Bearing Oil.Caused by Bearing Oil Slinger Being Positioned Near Vent Hole.Pump Inspected & Oil Replenished | /01T-0:on 830424,svc Water Booster Pump B Declared Inoperable Due to Loss of Bearing Oil.Caused by Bearing Oil Slinger Being Positioned Near Vent Hole.Pump Inspected & Oil Replenished | |
| 05000261/LER-1983-006-03, /03L-0:on 830427,during Testing of Spare Pump Installed to Replace Svc Water Pump A,Pump Tripped on Overcurrent.Apparently Caused by Internal Binding of Shaft as Result of Debris in Impeller Assembly | /03L-0:on 830427,during Testing of Spare Pump Installed to Replace Svc Water Pump A,Pump Tripped on Overcurrent.Apparently Caused by Internal Binding of Shaft as Result of Debris in Impeller Assembly | |
| 05000261/LER-1983-007-03, /03L-1:on 830429,during Testing of Pressurizer Porv,Valve RC-455C Failed to Meet Required Cycle Time & to Open Fully.Caused by Galling of Valve Plug to Cage.Valve Rebuilt.Stem Guide Bushing Installed | /03L-1:on 830429,during Testing of Pressurizer Porv,Valve RC-455C Failed to Meet Required Cycle Time & to Open Fully.Caused by Galling of Valve Plug to Cage.Valve Rebuilt.Stem Guide Bushing Installed | |
| 05000261/LER-1983-008-03, /03L-0:on 830506,safety Injection Accumulator Level Transmitters Found Out of Calibr.Caused by Instrument Drift.Transmitters Recalibr & Replacement Mod Developed | /03L-0:on 830506,safety Injection Accumulator Level Transmitters Found Out of Calibr.Caused by Instrument Drift.Transmitters Recalibr & Replacement Mod Developed | |
| 05000261/LER-1983-009-03, /03L-0:on 830507,w/unit Shut Down for Steam Generator Insp Outage,Flow Transmitter FT-495,loop C Steam Flow Found Out of Calibr.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc | /03L-0:on 830507,w/unit Shut Down for Steam Generator Insp Outage,Flow Transmitter FT-495,loop C Steam Flow Found Out of Calibr.Caused by Instrument Drift. Transmitter Recalibr & Returned to Svc | |
| 05000261/LER-1983-010-01, /01T-0:on 830525,review of Eddy Current Data Revealed 137 & 206 Defective Tubes Identified in Steam Generators B & C,Respectively.All Defective Tubes Taken Out of Svc | /01T-0:on 830525,review of Eddy Current Data Revealed 137 & 206 Defective Tubes Identified in Steam Generators B & C,Respectively.All Defective Tubes Taken Out of Svc | |
| 05000261/LER-1983-011-03, /03L-0:on 830605,circuit Breaker for Boron Injection Tank Heater Channel B Tripped.Caused by Component Failure Due to Normal End of Life.Failed Heater Replaced | /03L-0:on 830605,circuit Breaker for Boron Injection Tank Heater Channel B Tripped.Caused by Component Failure Due to Normal End of Life.Failed Heater Replaced | |
| 05000261/LER-1983-012-03, /03L-0:on 830621,auxiliary Feedwater Pump Discharge Valve V2-16C Breaker Tripped During Performance of Periodic Test 22.1C.Cause Unknown.Circuit Breaker for V2-15C Immediately Reclosed & Valve Cycled | /03L-0:on 830621,auxiliary Feedwater Pump Discharge Valve V2-16C Breaker Tripped During Performance of Periodic Test 22.1C.Cause Unknown.Circuit Breaker for V2-15C Immediately Reclosed & Valve Cycled | |
| 05000261/LER-1983-013-03, /03L-0:on 830625,RCS Leak Rate Determined to Be 1.07 Gpm.Caused by Packing of Pressurizer Block Valve RC-536.Valve Will Be Repacked During Next Cold Shutdown | /03L-0:on 830625,RCS Leak Rate Determined to Be 1.07 Gpm.Caused by Packing of Pressurizer Block Valve RC-536.Valve Will Be Repacked During Next Cold Shutdown | |
| 05000261/LER-1983-014-01, /01T-0:on 830704,svc Water Leak Discovered on Containment Fan Cooler HVH-2,resulting in Degradation of Containment Boundary Per IE Bulletin 80-24.Caused by Corrosion/Erosion of Cooler Tubing | /01T-0:on 830704,svc Water Leak Discovered on Containment Fan Cooler HVH-2,resulting in Degradation of Containment Boundary Per IE Bulletin 80-24.Caused by Corrosion/Erosion of Cooler Tubing | |
| 05000261/LER-1983-015-01, /01T-0:on 830622,w/unit at 80% Power,Increase in Total Primary Sys Leakage to 1.19 Gpm Identified.Caused by Defective Sensing Line Fitting.Abnormal Degradation of RCPB Declared on 830705.Fitting Replaced | /01T-0:on 830622,w/unit at 80% Power,Increase in Total Primary Sys Leakage to 1.19 Gpm Identified.Caused by Defective Sensing Line Fitting.Abnormal Degradation of RCPB Declared on 830705.Fitting Replaced | |
| 05000261/LER-1983-016-03, /03L-0:on 830721,steam Driven Auxiliary Feedwater Pump Declared Inoperable Due to Potential Steam Binding Resulting from Feedwater Backleakage Through Discharge Valves V2-14A,V2-14B & AFW-19.Valves Repaired | /03L-0:on 830721,steam Driven Auxiliary Feedwater Pump Declared Inoperable Due to Potential Steam Binding Resulting from Feedwater Backleakage Through Discharge Valves V2-14A,V2-14B & AFW-19.Valves Repaired | |
| 05000261/LER-1983-017-03, /03L-0:on 830729,steam Generator C Blowdown Isolation Valves FCV-1932A & B Found Leaking from Bottom Bonnet Flange.Caused by End of Gasket Life.Gaskets Replaced | /03L-0:on 830729,steam Generator C Blowdown Isolation Valves FCV-1932A & B Found Leaking from Bottom Bonnet Flange.Caused by End of Gasket Life.Gaskets Replaced | |
| 05000261/LER-1983-019-03, /03L-0:on 830729,w/unit at 79% Power,Boric Acid Transfer Pump a Failed During Performance of Periodic Test 7.1A.Caused by Normal End of Component Life for Thermal Switch.Switch Replaced | /03L-0:on 830729,w/unit at 79% Power,Boric Acid Transfer Pump a Failed During Performance of Periodic Test 7.1A.Caused by Normal End of Component Life for Thermal Switch.Switch Replaced | |
| 05000261/LER-1983-020-01, /01T-0:on 830803,w/unit at 79% Power,Current Tech Spec Cooldown Curves Determined to Be in Error,Per Review of New Draft Curves Based on Analysis of Reactor Vessel Surveillance Capsule.Curves Revised on 830804 | /01T-0:on 830803,w/unit at 79% Power,Current Tech Spec Cooldown Curves Determined to Be in Error,Per Review of New Draft Curves Based on Analysis of Reactor Vessel Surveillance Capsule.Curves Revised on 830804 | |
| 05000261/LER-1983-021-03, /03L-0:on 830818,w/unit at 79% Power,Pressurizer Level Channel I (LC-459A) Failed Low.Caused by Inadvertent Deenergization of LC-459A During Routine Calibr of Other Instruments in Same rack.LC-459A Reenergized | /03L-0:on 830818,w/unit at 79% Power,Pressurizer Level Channel I (LC-459A) Failed Low.Caused by Inadvertent Deenergization of LC-459A During Routine Calibr of Other Instruments in Same rack.LC-459A Reenergized | |
| 05000261/LER-1983-022-01, /01T-0:on 830823,svc Water Leak Discovered on Containment Fan Cooler HVH-2.Svc Water Isolated.Caused by Defective Tube Bundle.Tube Repaired | /01T-0:on 830823,svc Water Leak Discovered on Containment Fan Cooler HVH-2.Svc Water Isolated.Caused by Defective Tube Bundle.Tube Repaired | |
| 05000261/LER-1983-023-01, /01T-0:on 830905,primary to Secondary Leak in Steam Generator a Progressed Beyond Specs.Caused by Two Leaking Tubes & Contractor Error.Tubes Mechanically Plugged. Contractor Procedures Under Review | /01T-0:on 830905,primary to Secondary Leak in Steam Generator a Progressed Beyond Specs.Caused by Two Leaking Tubes & Contractor Error.Tubes Mechanically Plugged. Contractor Procedures Under Review | |
| 05000261/LER-1983-024-01, /01T-0:on 830916,Tech Spec Instantaneous Release Limit for Radioiodine Exceeded Through Plant Stack.Cause Not Stated.Equipment Which Provided Pathway Shut Down.Iodine Level Remained Normal During Testing | /01T-0:on 830916,Tech Spec Instantaneous Release Limit for Radioiodine Exceeded Through Plant Stack.Cause Not Stated.Equipment Which Provided Pathway Shut Down.Iodine Level Remained Normal During Testing | |
| 05000261/LER-1983-025-01, /01T-0:on 830926,svc Water Leak Discovered on Containment Fan Cooler HVH-2.Svc Water Isolated & Unit Declared Inoperable.Caused by Corrosion/Erosion of Coolant Tubing.Tube Bundle Repaired | /01T-0:on 830926,svc Water Leak Discovered on Containment Fan Cooler HVH-2.Svc Water Isolated & Unit Declared Inoperable.Caused by Corrosion/Erosion of Coolant Tubing.Tube Bundle Repaired | |
| 05000261/LER-1983-026-01, /01T-0:on 831012,svc Water Leak Discovered on Containment Fan Cooler HVH-3.Caused by Corrosion/Erosion of Tube.Tube Repaired W/Ceramic Sealant Matl.Replacement of Cooler W/Stainless Steel Alloy Tubing Planned | /01T-0:on 831012,svc Water Leak Discovered on Containment Fan Cooler HVH-3.Caused by Corrosion/Erosion of Tube.Tube Repaired W/Ceramic Sealant Matl.Replacement of Cooler W/Stainless Steel Alloy Tubing Planned | |
| 05000261/LER-1983-027-01, /01T-0:on 831103,while in Hot Shutdown,Cooling Coil Leaks Discovered on Containment Fan Coolers HVH-1 & HVH-3.Cause Not Stated.Coolers Being Repaired W/Ceramic Sealant Matl | /01T-0:on 831103,while in Hot Shutdown,Cooling Coil Leaks Discovered on Containment Fan Coolers HVH-1 & HVH-3.Cause Not Stated.Coolers Being Repaired W/Ceramic Sealant Matl | |
| 05000261/LER-1983-028-01, /01T-0:on 831123,during Review of Steam Generator Eddy Current Insp Data Tapes,Two Tubes Appeared to Need Plugging.All Tubes W/Eddy Current Greater than 47% Mechanically Plugged | /01T-0:on 831123,during Review of Steam Generator Eddy Current Insp Data Tapes,Two Tubes Appeared to Need Plugging.All Tubes W/Eddy Current Greater than 47% Mechanically Plugged | |
| 05000261/LER-1983-029-03, /03L-0:on 831122,w/unit Shut Down for Steam Generator Insp Outage,Level Transmitter LT-928 Found to Be Out of Calibr.Caused by Instrument Drift.Transmitter Recalibr | /03L-0:on 831122,w/unit Shut Down for Steam Generator Insp Outage,Level Transmitter LT-928 Found to Be Out of Calibr.Caused by Instrument Drift.Transmitter Recalibr | |
| 05000261/LER-1983-030-03, /03L-0:on 831129,two Degraded Voltage Relays for Emergency Bus E-2 Found Out of Tolerance During Calibr. Caused by Instrument Drift.Instrument Calibr | /03L-0:on 831129,two Degraded Voltage Relays for Emergency Bus E-2 Found Out of Tolerance During Calibr. Caused by Instrument Drift.Instrument Calibr | |
| 05000261/LER-1983-031-03, /03L-0:on 831130,two Containment Isolation Valves Failed to Close on Phase a Isolation Test & Fire Protection Valve FP-258,waste Disposal Valve WD-1728 & Second Valve Did Not Properly Isolate | /03L-0:on 831130,two Containment Isolation Valves Failed to Close on Phase a Isolation Test & Fire Protection Valve FP-258,waste Disposal Valve WD-1728 & Second Valve Did Not Properly Isolate | |
| 05000261/LER-1983-032-03, /03L-0:on 831104,during Testing of Porvs,Valve PORV-456 Failed to Meet Required Cycle Time.Caused by Limit Switch Improperly Adjusted.Limit Switch Adjusted & Small Air Leak Repaired | /03L-0:on 831104,during Testing of Porvs,Valve PORV-456 Failed to Meet Required Cycle Time.Caused by Limit Switch Improperly Adjusted.Limit Switch Adjusted & Small Air Leak Repaired | |
| 05000261/LER-1983-033-03, /03L-0:on 831224,instrument Lines to Turbine First Stage Pressure & Steam Pressure Transmitters & Steam Driven Auxiliary Feedwater Pump Discharge Pressure Switch Froze. Caused by Cold Weather | /03L-0:on 831224,instrument Lines to Turbine First Stage Pressure & Steam Pressure Transmitters & Steam Driven Auxiliary Feedwater Pump Discharge Pressure Switch Froze. Caused by Cold Weather | |