| | | Reporting criterion |
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| 05000263/LER-1981-001, Forwards Updated LER 81-001/03X-1 | Forwards Updated LER 81-001/03X-1 | |
| 05000263/LER-1981-001-03, While Performing Surveillance Test Mo 2035,HPCI Outboard Steam Supply Isolation Valve Failed to Close.Caused by Opened Limitorque SMB-O,240-volt Dc & Torque Switches.Switches Replaced | While Performing Surveillance Test Mo 2035,HPCI Outboard Steam Supply Isolation Valve Failed to Close.Caused by Opened Limitorque SMB-O,240-volt Dc & Torque Switches.Switches Replaced | |
| 05000263/LER-1981-016, Forwards LER 81-016/01T-0 | Forwards LER 81-016/01T-0 | |
| 05000263/LER-1981-017, Forwards Updated LER 81-017/03L-1 | Forwards Updated LER 81-017/03L-1 | |
| 05000263/LER-1981-017-03, While Removing Insulation,Cracks Discovered on 4-inch & 1-inch Reactor Water Cleanup HX Piping,Where Connected to Hx.Caused by Poor fit-up & Welding.Slag Line Removed & Weld Repaired | While Removing Insulation,Cracks Discovered on 4-inch & 1-inch Reactor Water Cleanup HX Piping,Where Connected to Hx.Caused by Poor fit-up & Welding.Slag Line Removed & Weld Repaired | |
| 05000263/LER-1981-018-03, /03L-0:on 810620,reactor Water Cleanup Sys Was Returned to Svc Following Maint W/Discharge Isolation Valve MO2399 Open & Inoperable.Caused by Torque Switch Failure. Motor & Torque Switch Replaced & Sys Returned to Svc | /03L-0:on 810620,reactor Water Cleanup Sys Was Returned to Svc Following Maint W/Discharge Isolation Valve MO2399 Open & Inoperable.Caused by Torque Switch Failure. Motor & Torque Switch Replaced & Sys Returned to Svc | |
| 05000263/LER-1981-018, Forwards LER 81-018/03L-0 | Forwards LER 81-018/03L-0 | |
| 05000263/LER-1981-019-03, /03L-0:on 811022,flow Through B Train Standby Gas Treatment Noted Less than Tech Spec.Caused by Dirt in Tubing from Flow Sensor at Offgas Stack Resulting in Closed Inlet Dampers on Stack Dilution Fans.Tubing Blown Out | /03L-0:on 811022,flow Through B Train Standby Gas Treatment Noted Less than Tech Spec.Caused by Dirt in Tubing from Flow Sensor at Offgas Stack Resulting in Closed Inlet Dampers on Stack Dilution Fans.Tubing Blown Out | |
| 05000263/LER-1981-019, Forwards LER 81-019/03L-0 | Forwards LER 81-019/03L-0 | |
| 05000263/LER-1981-020-03, /03L-0:on 810724,main Steam Leak Revealed in Drain Line to Condenser.Caused by Piping Leaking Immediately Downstream of 45 Degree Elbow Due to Erosion & Impingement Resulting from Steam & Water Flow from Restricting Orifice | /03L-0:on 810724,main Steam Leak Revealed in Drain Line to Condenser.Caused by Piping Leaking Immediately Downstream of 45 Degree Elbow Due to Erosion & Impingement Resulting from Steam & Water Flow from Restricting Orifice | |
| 05000263/LER-1981-020, Forwards LER 81-020/03L-0 | Forwards LER 81-020/03L-0 | |
| 05000263/LER-1981-021-01, /01T-0:on 811024,during Cold Shutdown Primary Containment Isolation Sys Logic Relay Coil Failed & Relay Did Not Immediately Trip.Caused by Natural end-of-life. Replaced Relay | /01T-0:on 811024,during Cold Shutdown Primary Containment Isolation Sys Logic Relay Coil Failed & Relay Did Not Immediately Trip.Caused by Natural end-of-life. Replaced Relay | |
| 05000263/LER-1981-021, /03L-0:on 811110,during Cold shutdown,4 Channel a Main Steam Line High Flow Switches Found Inoperable.Caused by Heating of Switching Element Due to Relay Coil Failure, Initially Reported in LER 81-021.Elements Replaced | /03L-0:on 811110,during Cold shutdown,4 Channel a Main Steam Line High Flow Switches Found Inoperable.Caused by Heating of Switching Element Due to Relay Coil Failure, Initially Reported in LER 81-021.Elements Replaced | |
| 05000263/LER-1981-022-01, /01T-0:on 811030,during Inservice Insp on Core Spray Loop B Safe End to Reducer Weld,Detected Several non- through-wall Crack Indications in HAZ on Reducer.Probably Caused by Igscc.Replaced Reducer & Valve | /01T-0:on 811030,during Inservice Insp on Core Spray Loop B Safe End to Reducer Weld,Detected Several non- through-wall Crack Indications in HAZ on Reducer.Probably Caused by Igscc.Replaced Reducer & Valve | |
| 05000263/LER-1981-022, Forwards LER 81-022/01T-0 | Forwards LER 81-022/01T-0 | |
| 05000263/LER-1981-023, Forwards LER 81-023/03L-0 | Forwards LER 81-023/03L-0 | |
| 05000263/LER-1981-024-01, /01T-0:on 811112,during Maint Shutdown & PM on Hpci,Discovered Abnormal Wear in Woodwear Governor Bracket. Caused by Failed Components Due to Thrust Washer Failure Causing Bushings to Seize to Shaft & Distort Casing | /01T-0:on 811112,during Maint Shutdown & PM on Hpci,Discovered Abnormal Wear in Woodwear Governor Bracket. Caused by Failed Components Due to Thrust Washer Failure Causing Bushings to Seize to Shaft & Distort Casing | |
| 05000263/LER-1981-024, Forwards LER 81-024/01T-0 | Forwards LER 81-024/01T-0 | |
