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| 05000309/LER-1981-001, Forwards LER 81-001/01T-0 | Forwards LER 81-001/01T-0 | |
| 05000309/LER-1981-001-01, /01T-0:on 800307,discrepancy Found in Comparison of Results of RCS Leak Test.Caused by Difference in Calculation Programs &/Or Errors in Original Methodology. Tech Spec Mod Being Prepared | /01T-0:on 800307,discrepancy Found in Comparison of Results of RCS Leak Test.Caused by Difference in Calculation Programs &/Or Errors in Original Methodology. Tech Spec Mod Being Prepared | |
| 05000309/LER-1981-003-01, /01T-0:open Valve in 0.25-inch Line Off Containment Air Particulate Detector Resulted in Unplanned Radioactive Release Through Primary Auxiliary Bldg Vent Sys Particulate & Charcoal Filters | /01T-0:open Valve in 0.25-inch Line Off Containment Air Particulate Detector Resulted in Unplanned Radioactive Release Through Primary Auxiliary Bldg Vent Sys Particulate & Charcoal Filters | |
| 05000309/LER-1981-007-01, /01T-0:on 810602,svc Water Cooling to Specialized Common Carrier Was Interrupted for Approx 30 Minutes Due to Tripping 6080 Bus 6 to Breaker 8.Caused by Normal Breaker Trip Due to Addl Loads During Maint Verification Testing | /01T-0:on 810602,svc Water Cooling to Specialized Common Carrier Was Interrupted for Approx 30 Minutes Due to Tripping 6080 Bus 6 to Breaker 8.Caused by Normal Breaker Trip Due to Addl Loads During Maint Verification Testing | |
| 05000309/LER-1981-007, Forwards LER 81-007/01T-0 | Forwards LER 81-007/01T-0 | |
| 05000309/LER-1981-008-01, /01T-0:on 810610,RHR Cooling Interrupted When Outboard Stop Valve Closed During Routine Refueling Operations.Caused by Displaced Valve Connector on Flow Control Due to Electrician Error.Connector Reinserted | /01T-0:on 810610,RHR Cooling Interrupted When Outboard Stop Valve Closed During Routine Refueling Operations.Caused by Displaced Valve Connector on Flow Control Due to Electrician Error.Connector Reinserted | |
| 05000309/LER-1981-008, Forwards LER 81-008/01T-0 | Forwards LER 81-008/01T-0 | |
| 05000309/LER-1981-009-03, /03L-0:on 810508,four of Six Main Steam Generator Safety Valve Settings Found to Be Outside Criteria.Cause Not Determined.Valve Settings Readjusted & Tested | /03L-0:on 810508,four of Six Main Steam Generator Safety Valve Settings Found to Be Outside Criteria.Cause Not Determined.Valve Settings Readjusted & Tested | |
| 05000309/LER-1981-009, Forwards LER 81-009/03L-0 | Forwards LER 81-009/03L-0 | |
| 05000309/LER-1981-010, Forwards LER 81-010/03L-0 | Forwards LER 81-010/03L-0 | |
| 05000309/LER-1981-010-03, /03L-0:on 810611,w/plant in Refueling Shutdown Mode,Pressurizer Safety Valve Position Monitor Discovered Inoperable.Caused by Failed Preamp.Preamp Unit Replaced | /03L-0:on 810611,w/plant in Refueling Shutdown Mode,Pressurizer Safety Valve Position Monitor Discovered Inoperable.Caused by Failed Preamp.Preamp Unit Replaced | |
| 05000309/LER-1981-011-03, /03L-0:on 810612,during Refueling Shutdown, Primary Vent Stack Continuous Particulate Filter Found Not Installed.Caused by Personnel Error in Not Replacing Filter Following Previous Sample Period.Personnel Reinstructed | /03L-0:on 810612,during Refueling Shutdown, Primary Vent Stack Continuous Particulate Filter Found Not Installed.Caused by Personnel Error in Not Replacing Filter Following Previous Sample Period.Personnel Reinstructed | |
| 05000309/LER-1981-011, Forwards LER 81-011/03L-0 | Forwards LER 81-011/03L-0 | |
| 05000309/LER-1981-012-01, /01T-0:on 810710,during Routine Refueling,While Performing Plant Testing,Rcs Boron Concentration Discovered Decreased by 100ppm.Caused by Failure of Primary Water Outlet Valve to Close Following Sluice Procedure | /01T-0:on 810710,during Routine Refueling,While Performing Plant Testing,Rcs Boron Concentration Discovered Decreased by 100ppm.Caused by Failure of Primary Water Outlet Valve to Close Following Sluice Procedure | |
| 05000309/LER-1981-012, Forwards LER 81-012/01T-0 | Forwards LER 81-012/01T-0 | |
| 05000309/LER-1981-013, Forwards LER 81-013/03L-0 | Forwards LER 81-013/03L-0 | |
| 05000309/LER-1981-013-03, /03L-0:on 810709,valve Leakage Observed at Greater than Acceptable Limits.Caused by Damage to Valve Stem, Dirty Internals & Seat Warped by Heat from Welding.Valves Repaired | /03L-0:on 810709,valve Leakage Observed at Greater than Acceptable Limits.Caused by Damage to Valve Stem, Dirty Internals & Seat Warped by Heat from Welding.Valves Repaired | |
| 05000309/LER-1981-014-01, /01T-0:on 810719,containment Isolation Sys Valve on Alternate Letdown Sys Failed Open.Caused by Packing Being Too Tight on Valve.Valve Repaired & Tested | /01T-0:on 810719,containment Isolation Sys Valve on Alternate Letdown Sys Failed Open.Caused by Packing Being Too Tight on Valve.Valve Repaired & Tested | |
| 05000309/LER-1981-014, Forwards LER 81-014/01T-0 | Forwards LER 81-014/01T-0 | |
| 05000309/LER-1981-015, Forwards LER 81-015/01T-0 | Forwards LER 81-015/01T-0 | |
| 05000309/LER-1981-015-01, /01T-0:on 810814,box Containing Containment Apd Particulate Paper Found Leaking Containment Air.Repairs Resulted in Unplanned Release.Caused by Crack in Silicon Seal Area.Seal Repaired | /01T-0:on 810814,box Containing Containment Apd Particulate Paper Found Leaking Containment Air.Repairs Resulted in Unplanned Release.Caused by Crack in Silicon Seal Area.Seal Repaired | |
| 05000309/LER-1981-016, Forwards LER 81-016/03L-0 | Forwards LER 81-016/03L-0 | |
| 05000309/LER-1981-016-03, /03L-0:on 810718,while in Hot Standby Condition, Leak Was Discovered in Letdown Line.Caused by Oscillating Letdown Sys Backpressure Control Valve Forcing Relief Valve to Open & Close.Excessive Vibration Caused Weld Failure | /03L-0:on 810718,while in Hot Standby Condition, Leak Was Discovered in Letdown Line.Caused by Oscillating Letdown Sys Backpressure Control Valve Forcing Relief Valve to Open & Close.Excessive Vibration Caused Weld Failure | |
| 05000309/LER-1981-017, Forwards LER 81-017/03L-0 | Forwards LER 81-017/03L-0 | |
| 05000309/LER-1981-017-03, /03L-0:on 810812,reactor Protection Sys Channel a Wide Range Log Found Functioning Incorrectly.Caused by Log Amp & Summer Circuit Board Failure.Unit Replaced | /03L-0:on 810812,reactor Protection Sys Channel a Wide Range Log Found Functioning Incorrectly.Caused by Log Amp & Summer Circuit Board Failure.Unit Replaced | |
| 05000309/LER-1981-018, Forwards LER 81-018/03L-0 | Forwards LER 81-018/03L-0 | |
| 05000309/LER-1981-018-03, /03L-0:on 810718,operators Discovered That Axial Flux Offset Comparison of Setpoints & Values Surveillance Had Not Been Performed Each Shift Per Tech Spec.Caused by Personnel Error.New Surveillance Method Initiated | /03L-0:on 810718,operators Discovered That Axial Flux Offset Comparison of Setpoints & Values Surveillance Had Not Been Performed Each Shift Per Tech Spec.Caused by Personnel Error.New Surveillance Method Initiated | |
| 05000309/LER-1981-019-03, /03L-0:on 810904,channel D,Temp Monitor/Lp Calculator Setpoint Indicated Below Tech Spec Limit.Caused by Faulty Amplifier Module within Margin Calculator.Module Replaced & Setpoints Verified | /03L-0:on 810904,channel D,Temp Monitor/Lp Calculator Setpoint Indicated Below Tech Spec Limit.Caused by Faulty Amplifier Module within Margin Calculator.Module Replaced & Setpoints Verified | |
| 05000309/LER-1981-019, Forwards LER 81-019/03L-0 | Forwards LER 81-019/03L-0 | |
| 05000309/LER-1981-020-03, /03L-0:on 810922,during Review of Outstanding Procedure Change Repts,One Procedure Found Not Reviewed within 14 Days of Being Generated as Required by Tech Spec. Caused by Personnel Oversight.Personnel Counseled | /03L-0:on 810922,during Review of Outstanding Procedure Change Repts,One Procedure Found Not Reviewed within 14 Days of Being Generated as Required by Tech Spec. Caused by Personnel Oversight.Personnel Counseled | |
| 05000309/LER-1981-020, Forwards LER 81-020/03L-0 | Forwards LER 81-020/03L-0 | |
| 05000309/LER-1981-021-03, /03L-0:on 810923,following Repair of Locking Device on Connector L1A-1213A,transmitter LT-1213A Failed High,Resulting in Loss of Channel a Low Steam Generator Water Level Trip Protection.Cause Not Stated.Unit Replaced | /03L-0:on 810923,following Repair of Locking Device on Connector L1A-1213A,transmitter LT-1213A Failed High,Resulting in Loss of Channel a Low Steam Generator Water Level Trip Protection.Cause Not Stated.Unit Replaced | |
| 05000309/LER-1981-021, Forwards LER 81-021/03L-0 | Forwards LER 81-021/03L-0 | |
| 05000309/LER-1981-022, Forwards LER 81-022/03L-0 | Forwards LER 81-022/03L-0 | |
| 05000309/LER-1981-022-03, /03L-0:on 810925,quarterly Surveillance Measurement of HPSI Valve Steam Stops Was in Progress When HPSI Valve Found to Have Adverse Tolerance Buildup.Caused by Periodic Disassembly & Normal Wear.Valve Readjusted | /03L-0:on 810925,quarterly Surveillance Measurement of HPSI Valve Steam Stops Was in Progress When HPSI Valve Found to Have Adverse Tolerance Buildup.Caused by Periodic Disassembly & Normal Wear.Valve Readjusted | |
| 05000309/LER-1981-023, Forwards LER 81-023/03L-0 | Forwards LER 81-023/03L-0 | |
| 05000309/LER-1981-023-03, /03L-0:on 810930,monthly Composite Precipitation Analysis for Tritium for Sept 1981 Inadvertently Missed. Caused by Samples Being Inadvertently Disposed of Prior to Shipment Offsite for Analysis | /03L-0:on 810930,monthly Composite Precipitation Analysis for Tritium for Sept 1981 Inadvertently Missed. Caused by Samples Being Inadvertently Disposed of Prior to Shipment Offsite for Analysis | |
| 05000309/LER-1981-024, Forwards LER 81-024/03L-0 | Forwards LER 81-024/03L-0 | |
| 05000309/LER-1981-024-03, /03L-0:on 811130,primary Vent Stack Halogen & Particulate Filter Sample Found Not Removed & Analyzed within Prescribed Time.Samples Taken & Analyzed.Personnel Retrained Re Surveillance Schedule | /03L-0:on 811130,primary Vent Stack Halogen & Particulate Filter Sample Found Not Removed & Analyzed within Prescribed Time.Samples Taken & Analyzed.Personnel Retrained Re Surveillance Schedule | |
| 05000309/LER-1981-081, Forwards LER 81-081/03L-0.Detailed Event Analysis Encl | Forwards LER 81-081/03L-0.Detailed Event Analysis Encl | |