| | | Reporting criterion |
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| 05000306/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | |
| 05000306/LER-1979-001-03, /03L-0 on 790112:during Surveillance Test Found That Instrument 2TM-404V,overpower delta-T Summing Circuit, Had Drifted Due to Drift in Foxbore Model 66RC-OL Summing Unit | /03L-0 on 790112:during Surveillance Test Found That Instrument 2TM-404V,overpower delta-T Summing Circuit, Had Drifted Due to Drift in Foxbore Model 66RC-OL Summing Unit | |
| 05000282/LER-1979-001, Has Been Voided | Has Been Voided | |
| 05000282/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | |
| 05000306/LER-1979-002, Has Been Voided | Has Been Voided | |
| 05000282/LER-1979-002-03, /03L-0 on 790126:diesel Cooling Water Pump 22 Failed to Start During Surveillance Test.Caused by Stuck Contacts in Licon Micro-Switch 11-104 | /03L-0 on 790126:diesel Cooling Water Pump 22 Failed to Start During Surveillance Test.Caused by Stuck Contacts in Licon Micro-Switch 11-104 | |
| 05000306/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | |
| 05000306/LER-1979-003-03, /03L-0 on 790216:overtemperature Summing Unit 2TM-401B Drifted & Allowed High Trip Pressure.Device Recalibrated.Device Performance Being Evaluated Frequently | /03L-0 on 790216:overtemperature Summing Unit 2TM-401B Drifted & Allowed High Trip Pressure.Device Recalibrated.Device Performance Being Evaluated Frequently | |
| 05000282/LER-1979-007-01, /01T-0 on 790328:non-conservatism Noted in rod-drop Analysis.Corrective Actions Undetermined;Followup LER Will Be Issued | /01T-0 on 790328:non-conservatism Noted in rod-drop Analysis.Corrective Actions Undetermined;Followup LER Will Be Issued | |
| 05000282/LER-1979-007, Forwards LER 79-007/01T-0 | Forwards LER 79-007/01T-0 | |
| 05000282/LER-1979-009, Forwards LER 79-009/01T-0 | Forwards LER 79-009/01T-0 | |
| 05000282/LER-1979-009-01, /01T-0 on 790412:notified by Vendor That Small Break in Pressurizer Indicator Lp May Hang Up While Pp Decreases,Delaying Safety Injection.Westinghouse Recommends Manually Initiating Safety Injection Implements | /01T-0 on 790412:notified by Vendor That Small Break in Pressurizer Indicator Lp May Hang Up While Pp Decreases,Delaying Safety Injection.Westinghouse Recommends Manually Initiating Safety Injection Implements | |
| 05000306/LER-1979-015, Forwards LER 79-015/03L-0 | Forwards LER 79-015/03L-0 | |
| 05000306/LER-1979-015-03, /03L-0 on 790504:during Power Operation,Nuclear Power Range Channel 2N43 Failed Low,Due to Loss of High Voltage.Caused by Failure of High Voltage Regulated Source Model UPMD-X54W.Power Supply Replaced | /03L-0 on 790504:during Power Operation,Nuclear Power Range Channel 2N43 Failed Low,Due to Loss of High Voltage.Caused by Failure of High Voltage Regulated Source Model UPMD-X54W.Power Supply Replaced | |
| 05000306/LER-1979-016-03, /03L-0 on 790509:during Audit of Surveillance Program,Found That Reactor Vessel Injection Isolation Valve Test Sp 2159 Had Not Been Done.Caused by Failure to Enter Test on Computer Surveillance Schedule | /03L-0 on 790509:during Audit of Surveillance Program,Found That Reactor Vessel Injection Isolation Valve Test Sp 2159 Had Not Been Done.Caused by Failure to Enter Test on Computer Surveillance Schedule | |
| 05000306/LER-1979-016, Forwards LER 79-016/03L-0 | Forwards LER 79-016/03L-0 | |
| 05000282/LER-1979-017, Forwards LER 79-017/03L-0 | Forwards LER 79-017/03L-0 | |
| 05000282/LER-1979-017-03, /03L-0 on 790525:both Source Range Channels Lost for Three Menutes When All Power Range Channel Control Power Fuses Were Pulled.Caused by Procedure Error.Fuses Reinstalled & Procedure Changed | /03L-0 on 790525:both Source Range Channels Lost for Three Menutes When All Power Range Channel Control Power Fuses Were Pulled.Caused by Procedure Error.Fuses Reinstalled & Procedure Changed | |
| 05000282/LER-1979-018, Forwards LER 79-018/03L-0 | Forwards LER 79-018/03L-0 | |
| 05000282/LER-1979-018-03, /03L-0 on 790531:SP-1187 Diesel Fire Pump Weekly Battery Insp Not Performed in Fifth Week of Jan 1979. Procedures Changed to Require Fifth Signature Block on Data Sheets for Months W/Five Weekly Insps | /03L-0 on 790531:SP-1187 Diesel Fire Pump Weekly Battery Insp Not Performed in Fifth Week of Jan 1979. Procedures Changed to Require Fifth Signature Block on Data Sheets for Months W/Five Weekly Insps | |
| 05000282/LER-1979-019, Notifies of Discrepancy in Design Analyses Performed for Containment Purge Valves.Info Supplements LER 79-019.Valves Will Remain Closed Above Cold Shutdown Conditions Until Closure Can Be Assured | Notifies of Discrepancy in Design Analyses Performed for Containment Purge Valves.Info Supplements LER 79-019.Valves Will Remain Closed Above Cold Shutdown Conditions Until Closure Can Be Assured | |
| 05000282/LER-1979-020-03, /03L-0 on 790609:failure of Pressurizer power-operated Relief Isolation to Close on Demand.Caused by Torque Switch Failure in Limitorque SMB-00 Operator.Switch Replaced | /03L-0 on 790609:failure of Pressurizer power-operated Relief Isolation to Close on Demand.Caused by Torque Switch Failure in Limitorque SMB-00 Operator.Switch Replaced | |
| 05000282/LER-1979-020, Forwards LER 79-020/03L-0 | Forwards LER 79-020/03L-0 | |
| 05000282/LER-1979-021-03, /03L-0 on 790611:steam Generator Level Channel 1LT471 Responded Slowly to Level Changes.Cause Unstated. Transmitter Diaphragm Assembly Replaced | /03L-0 on 790611:steam Generator Level Channel 1LT471 Responded Slowly to Level Changes.Cause Unstated. Transmitter Diaphragm Assembly Replaced | |
| 05000282/LER-1979-021, Forwards LER 79-021/03L-0 | Forwards LER 79-021/03L-0 | |
| 05000282/LER-1979-022-03, /03L-0 on 790716:bistable in Steam Exclusion Actuation Sys Tripped Three Degrees Above Limit During Surveillance Test.Caused by Drift of Foxboro Bistable Model 63U-CC-OHDR-F.Bistable Inspected & Recalibr | /03L-0 on 790716:bistable in Steam Exclusion Actuation Sys Tripped Three Degrees Above Limit During Surveillance Test.Caused by Drift of Foxboro Bistable Model 63U-CC-OHDR-F.Bistable Inspected & Recalibr | |
| 05000282/LER-1979-022, Forwards LER 79-022/03L-0 | Forwards LER 79-022/03L-0 | |
| 05000282/LER-1979-023-03, /03L-0 on 790726:design Deficiency Was Found in Motor Driven Auxiliary Feedwater Pump Low Lube Oil Pressure Circuitry in Each Unit.Redundant Turbine Driven Pumps Are Unaffected.Design Change Has Been Initiated | /03L-0 on 790726:design Deficiency Was Found in Motor Driven Auxiliary Feedwater Pump Low Lube Oil Pressure Circuitry in Each Unit.Redundant Turbine Driven Pumps Are Unaffected.Design Change Has Been Initiated | |
| 05000282/LER-1979-023, Forwards LER 79-023/03L-0 | Forwards LER 79-023/03L-0 | |
| 05000282/LER-1979-024, Forwards LER 79-024/03L-0 | Forwards LER 79-024/03L-0 | |
| 05000282/LER-1979-024-03, /03L-0 on 790731:safety Injection Pump Test Sp 1088 Was Not Completed During Hot Shutdown as Required. Caused by Personnel Error | /03L-0 on 790731:safety Injection Pump Test Sp 1088 Was Not Completed During Hot Shutdown as Required. Caused by Personnel Error | |
| 05000282/LER-1979-025-01, /01T-0:on 790830,during Pipe Walkdown Insp,One Pipe Hanger in Auxiliary Feedwater Sys Was Found Inoperable. Caused by Incomplete Installment During Const.Unit Repaired Immediately & Was Returned to Full Power | /01T-0:on 790830,during Pipe Walkdown Insp,One Pipe Hanger in Auxiliary Feedwater Sys Was Found Inoperable. Caused by Incomplete Installment During Const.Unit Repaired Immediately & Was Returned to Full Power | |
| 05000282/LER-1979-025, Submits Response to IE Bulletin 79-14.Item of Nonconformance Discovered Re Auxiliary Feedwater Sys (Ref LER 79-25).Visual & Analytical Insp of as-built Supports Will Be Completed within 120 Days | Submits Response to IE Bulletin 79-14.Item of Nonconformance Discovered Re Auxiliary Feedwater Sys (Ref LER 79-25).Visual & Analytical Insp of as-built Supports Will Be Completed within 120 Days | |
| 05000306/LER-1979-026-01, /01T-0:on 790919,during Power Reduction Below 90% Power,Axial Flux Difference Left Target Band While Power Was Still Above 90% Power.Caused by Operator Error.Power Reduced to Below 90% & Event Discussed W/Personnel | /01T-0:on 790919,during Power Reduction Below 90% Power,Axial Flux Difference Left Target Band While Power Was Still Above 90% Power.Caused by Operator Error.Power Reduced to Below 90% & Event Discussed W/Personnel | |
| 05000306/LER-1979-026, Forwards LER 79-026/01T-0 | Forwards LER 79-026/01T-0 | |
| 05000282/LER-1979-027, Forwards Westinghouse Evaluation of 791002 Tube Rupture Event.Concurs W/Util Recommendations in LER 79-027/01T-0 Re Operation of Turbine Driven Auxiliary Feed Pump & Steam Supply Valve from Faulted Steam Generator | Forwards Westinghouse Evaluation of 791002 Tube Rupture Event.Concurs W/Util Recommendations in LER 79-027/01T-0 Re Operation of Turbine Driven Auxiliary Feed Pump & Steam Supply Valve from Faulted Steam Generator | |
| 05000282/LER-1979-027-01, /01T-0:on 791002,tube Break Occurred in Steam Generator 11.Caused by Mechanical Wear.Two Defective Tubes Plugged | /01T-0:on 791002,tube Break Occurred in Steam Generator 11.Caused by Mechanical Wear.Two Defective Tubes Plugged | |
| 05000282/LER-1979-028, Forwards LER 79-028/03L-0 | Forwards LER 79-028/03L-0 | |
| 05000282/LER-1979-028-03, /03L-0:on 791019,during Cold Shutdown,Insp of Pipe Supports for Cooling Water Mods in Containment Revealed Some Supports Not Built to Tech Specs.Caused by Installation Error.Deficient Supports Repaired | /03L-0:on 791019,during Cold Shutdown,Insp of Pipe Supports for Cooling Water Mods in Containment Revealed Some Supports Not Built to Tech Specs.Caused by Installation Error.Deficient Supports Repaired | |
| 05000306/LER-1979-029, Forwards LER 79-029/03L-0 | Forwards LER 79-029/03L-0 | |
| 05000306/LER-1979-029-03, /03L-0:on 791102,during Surveillance Test,Turbine Driven Auxiliary Feedwater Pump Did Not Start.Cause Unknown. Valves Being Checked for Proper Position Every 4-h & Design Change Initiated | /03L-0:on 791102,during Surveillance Test,Turbine Driven Auxiliary Feedwater Pump Did Not Start.Cause Unknown. Valves Being Checked for Proper Position Every 4-h & Design Change Initiated | |
| 05000282/LER-1979-030-03, During Insp Per IE Bulletins 79-14 & 79-02,two Snubbers in Cooling Water Sys Found Incorrectly Installed & One Hanger in Auxiliary Feedwater Sys Found Damaged.Cause Not Stated | During Insp Per IE Bulletins 79-14 & 79-02,two Snubbers in Cooling Water Sys Found Incorrectly Installed & One Hanger in Auxiliary Feedwater Sys Found Damaged.Cause Not Stated | |
| 05000282/LER-1979-030, Forwards Updated LER 79-030/03X-1 | Forwards Updated LER 79-030/03X-1 | |
| 05000282/LER-1979-031-03, /03L-0:on 791126,during Periodic Surveillance Program Review,Discovered That SP1022 Boric Acid Tank Level Test Not Performed within Tolerance Band.Caused by Personnel Oversight.Instrumentation & Control Schedule to Be Used | /03L-0:on 791126,during Periodic Surveillance Program Review,Discovered That SP1022 Boric Acid Tank Level Test Not Performed within Tolerance Band.Caused by Personnel Oversight.Instrumentation & Control Schedule to Be Used | |
| 05000282/LER-1979-031, Forwards LER 79-031/03L-0 | Forwards LER 79-031/03L-0 | |
| 05000282/LER-1979-032-03, /03L-0:on 791221,during Surveillance Test, Diesel Generator 2 Tripped on High Crankcase Pressure. Apparently Caused by Cooling Water Leaking Into Lube Oil Sys & Accumulating During Shutdown Periods | /03L-0:on 791221,during Surveillance Test, Diesel Generator 2 Tripped on High Crankcase Pressure. Apparently Caused by Cooling Water Leaking Into Lube Oil Sys & Accumulating During Shutdown Periods | |
| 05000282/LER-1979-032, Forwards LER 79-032/03L-0 | Forwards LER 79-032/03L-0 | |
| 05000282/LER-1979-033-03, /03L-0:on 791228,during Surveillance Test,Inlet Steam Supply Motor Valve to turbine-driven Auxiliary Feedwater Pump Tripped on Overload.Caused by Loosened Bell Screws Which Fell Into Motor,Causing Binding | /03L-0:on 791228,during Surveillance Test,Inlet Steam Supply Motor Valve to turbine-driven Auxiliary Feedwater Pump Tripped on Overload.Caused by Loosened Bell Screws Which Fell Into Motor,Causing Binding | |
| 05000282/LER-1979-033, Forwards LER 79-033/03L-0 | Forwards LER 79-033/03L-0 | |
