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| 05000255/LER-1980-001, Forwards LER 80-001/01T-0 | Forwards LER 80-001/01T-0 | |
| 05000255/LER-1980-001-01, /01T-0:on 800109,pipe & Pipe Support Stress Analyses Per IE Bulletin 79-14 Identified Lines Not Meeting FSAR Criteria for SSE or Obe.Apparently Caused by Differences in Design Documents & as-built Conditions | /01T-0:on 800109,pipe & Pipe Support Stress Analyses Per IE Bulletin 79-14 Identified Lines Not Meeting FSAR Criteria for SSE or Obe.Apparently Caused by Differences in Design Documents & as-built Conditions | |
| 05000255/LER-1980-002-03, /03L-0:on 791023,during Routine Testing of Hydraulic Snubbers,Snubber S-6,located on Main Steam Line, Failed to Meet Test Acceptance Criteria.Caused by Loose Accumulator Oil Fill Fitting.Snubber Replaced | /03L-0:on 791023,during Routine Testing of Hydraulic Snubbers,Snubber S-6,located on Main Steam Line, Failed to Meet Test Acceptance Criteria.Caused by Loose Accumulator Oil Fill Fitting.Snubber Replaced | |
| 05000255/LER-1980-002, Notifies That Current Main Steam Line Break Analysis Requested in NRC Cannot Be Completed Until Containment Spray Problem Identified in LER 80-002,is Resolved | Notifies That Current Main Steam Line Break Analysis Requested in NRC Cannot Be Completed Until Containment Spray Problem Identified in LER 80-002,is Resolved | |
| 05000255/LER-1980-003-01, During Evaluation of SEP Topic VI-3,incorrect Assumptions for Initiation of Containment Spray Were Determined to Have Resulted in Lower Predicted Peak Pressures.Reanalysis Corrected Calculations | During Evaluation of SEP Topic VI-3,incorrect Assumptions for Initiation of Containment Spray Were Determined to Have Resulted in Lower Predicted Peak Pressures.Reanalysis Corrected Calculations | |
| 05000255/LER-1980-003, Forwards Revised Page 3-36 to Basis of Tech Spec Section 3.4 Re Containment Cooling,Submitted in 861020 Change Request.Error in Original Submittal Resulted from LER 80-003 Re Description of Main Steam Line Break Results | Forwards Revised Page 3-36 to Basis of Tech Spec Section 3.4 Re Containment Cooling,Submitted in 861020 Change Request.Error in Original Submittal Resulted from LER 80-003 Re Description of Main Steam Line Break Results | |
| 05000255/LER-1980-004, Forwards LER 80-004/01T-0 | Forwards LER 80-004/01T-0 | |
| 05000255/LER-1980-004-01, /01T-0:on 800327,during Review of Tech Spec Surveillance Procedures,Discovered Procedure MO-19 Requiring Isolation of Both Containment Spray Headers During Test Violated.Cause Not Stated.Procedure Rewritten | /01T-0:on 800327,during Review of Tech Spec Surveillance Procedures,Discovered Procedure MO-19 Requiring Isolation of Both Containment Spray Headers During Test Violated.Cause Not Stated.Procedure Rewritten | |
| 05000255/LER-1980-005-01, /01T-0:on 800327,during Review of Tech Spec Surveillance Procedures,Discovered That Procedures QO-2 & MO-23 Require Stroking Sirw Tank Outlet Valves.Amend to OL or Clarification of Tech Spec Requirements Will Be Sought | /01T-0:on 800327,during Review of Tech Spec Surveillance Procedures,Discovered That Procedures QO-2 & MO-23 Require Stroking Sirw Tank Outlet Valves.Amend to OL or Clarification of Tech Spec Requirements Will Be Sought | |
| 05000255/LER-1980-005, Forwards LER 80-005/01T-0 | Forwards LER 80-005/01T-0 | |
| 05000255/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | |
| 05000255/LER-1980-006-03, Discovered That T-ring Air Supplies for 12-inch & 48-inch Purge Valves Had Leakage in Excess of Acceptance Criteria.Caused by Poor Fittings & Packings | Discovered That T-ring Air Supplies for 12-inch & 48-inch Purge Valves Had Leakage in Excess of Acceptance Criteria.Caused by Poor Fittings & Packings | |
| 05000255/LER-1980-007-01, /01T-0:on 800407,during Maint on Control Room Ventilation Sys,Discovered Leakage Defects Through Shaft of Fan V-36.Fresh Air Damper D-1 Would Not Close.Caused by Inadequate pre-operational Testing of Ventilation Sys | /01T-0:on 800407,during Maint on Control Room Ventilation Sys,Discovered Leakage Defects Through Shaft of Fan V-36.Fresh Air Damper D-1 Would Not Close.Caused by Inadequate pre-operational Testing of Ventilation Sys | |
| 05000255/LER-1980-007, Forwards LER 80-007/01T-0 | Forwards LER 80-007/01T-0 | |
| 05000255/LER-1980-008, Forwards Updated LER 80-008/01X-1 | Forwards Updated LER 80-008/01X-1 | |
| 05000255/LER-1980-008-01, Test Results of Type C Containment Leak Tests Indicated Local Leakage in Excess of Tech Specs.Caused by Deterioration of Valve Internals | Test Results of Type C Containment Leak Tests Indicated Local Leakage in Excess of Tech Specs.Caused by Deterioration of Valve Internals | |
| 05000255/LER-1980-009-01, /01T-0:on 800424,during Walkdowns of safety- Related Sys Conducted to Verify P&ID Accuracy,Ventilation Supply Damper CV-1812 to West Safeguards Equipment Room Could Not Be Located.Cause Unknown | /01T-0:on 800424,during Walkdowns of safety- Related Sys Conducted to Verify P&ID Accuracy,Ventilation Supply Damper CV-1812 to West Safeguards Equipment Room Could Not Be Located.Cause Unknown | |
| 05000255/LER-1980-010-01, /01T-0:on 800326,during Calibr of Sirw Tank Low Level Switches,Reactor Analysis & Safety Setpoint Were Determined to Have Exceeded Tech Specs Limit.Caused by Error in Acceptance Criteria.Reportability Determined 800428 | /01T-0:on 800326,during Calibr of Sirw Tank Low Level Switches,Reactor Analysis & Safety Setpoint Were Determined to Have Exceeded Tech Specs Limit.Caused by Error in Acceptance Criteria.Reportability Determined 800428 | |
| 05000255/LER-1980-011-03, /03L-0:on 800416,following Mods to Power Operated Relief Valve Supplies,Valves Were Declared Operable Before Administrative Reviews Were Completed.Caused by Misunderstanding of Review Requirements | /03L-0:on 800416,following Mods to Power Operated Relief Valve Supplies,Valves Were Declared Operable Before Administrative Reviews Were Completed.Caused by Misunderstanding of Review Requirements | |
| 05000255/LER-1980-011, Forwards LER 80-011/03L-0 | Forwards LER 80-011/03L-0 | |
| 05000255/LER-1980-012, Licensee Event Report 80-012 Regarding Bottom Half of the Barrier for Fire Penetration HO-12 Was Missing During Inspection of Fire Barriers | Licensee Event Report 80-012 Regarding Bottom Half of the Barrier for Fire Penetration HO-12 Was Missing During Inspection of Fire Barriers | |
| 05000255/LER-1980-012-03, /03L-0:on 800417,during Insp of Fire Barriers, Discovered That Bottom Half of Barrier for Fire Penetration Was Missing.Cause Undetermined.Barrier Restored to Operable Status | /03L-0:on 800417,during Insp of Fire Barriers, Discovered That Bottom Half of Barrier for Fire Penetration Was Missing.Cause Undetermined.Barrier Restored to Operable Status | |
| 05000255/LER-1980-013-01, /01T-0:on 800521,HPSI Flow Indication for Loop 2A Was Inoperable.Caused by Ruptured Bellows.Transmitter Was Replaced to Restore Operability | /01T-0:on 800521,HPSI Flow Indication for Loop 2A Was Inoperable.Caused by Ruptured Bellows.Transmitter Was Replaced to Restore Operability | |
| 05000255/LER-1980-013, Forwards LER 80-013/01T-0 | Forwards LER 80-013/01T-0 | |
| 05000255/LER-1980-014, Licensee Event Reports 80-014, 80-015, and 80-016 Regarding Oil Level in Snubbers No. 5, 9, and 7 Were Found to Be Less than Zero During Routine Testing of Hydraulic Snubbers | Licensee Event Reports 80-014, 80-015, and 80-016 Regarding Oil Level in Snubbers No. 5, 9, and 7 Were Found to Be Less than Zero During Routine Testing of Hydraulic Snubbers | |
| 05000255/LER-1980-014-03, /03L-0:on 800512,during Routine Testing of Hydraulic Snubbers,Oil Level in Snubber 5 Found to Be Less than Zero.Caused by Rust Combined W/Vibrator,Accelerating Seal Failure.Rust Found Inside Accumalator | /03L-0:on 800512,during Routine Testing of Hydraulic Snubbers,Oil Level in Snubber 5 Found to Be Less than Zero.Caused by Rust Combined W/Vibrator,Accelerating Seal Failure.Rust Found Inside Accumalator | |
| 05000255/LER-1980-015-03, /03L-0:on 800512,during Routine Testing of Hydraulic Snubber,Oil Level in Snubber 9 Found to Be Less than Zero.Cause of Seal Damage Unknown;Normal Wear Suspected.Accumulator Plunger Seal Found to Be Damaged | /03L-0:on 800512,during Routine Testing of Hydraulic Snubber,Oil Level in Snubber 9 Found to Be Less than Zero.Cause of Seal Damage Unknown;Normal Wear Suspected.Accumulator Plunger Seal Found to Be Damaged | |
| 05000255/LER-1980-016-03, /03L-0:on 800515,during Testing of Hydraulic Snubber,Oil Level in Snubber 7 Found to Be Less than Zero. Caused by Seal Degradation.Snubber Will Be Disassembled to Confirm Cause | /03L-0:on 800515,during Testing of Hydraulic Snubber,Oil Level in Snubber 7 Found to Be Less than Zero. Caused by Seal Degradation.Snubber Will Be Disassembled to Confirm Cause | |
| 05000255/LER-1980-017-03, Ps Testing Procedures Review Revealed Setpoint of PS-1801 Through 1804 to Be Lower than Permitted by Tech Specs.Caused by Faulty Procedure. Procedures Revised to Conform W/Tech Specs | Ps Testing Procedures Review Revealed Setpoint of PS-1801 Through 1804 to Be Lower than Permitted by Tech Specs.Caused by Faulty Procedure. Procedures Revised to Conform W/Tech Specs | |
| 05000255/LER-1980-017, Forwards Updated LER 80-017/03X-1 | Forwards Updated LER 80-017/03X-1 | |
| 05000255/LER-1980-018-03, /03L-0:on 800522,during Routine Testing of Hydraulic Snubbers,Oil Level in Snubber 2 Was Found to Be Less than Zero & Was Declared Inoperable.Apparently Caused by Seal Degradation | /03L-0:on 800522,during Routine Testing of Hydraulic Snubbers,Oil Level in Snubber 2 Was Found to Be Less than Zero & Was Declared Inoperable.Apparently Caused by Seal Degradation | |
| 05000255/LER-1980-018, Licensee Event Report 80-018 Regarding Oil Level in Snubber No. 2 Found to Be Less than Zero During Routine Testing of Hydraulic Snubbers | Licensee Event Report 80-018 Regarding Oil Level in Snubber No. 2 Found to Be Less than Zero During Routine Testing of Hydraulic Snubbers | |
| 05000255/LER-1980-019-01, /01T-0:on 800609,during Tech Spec Review,Tech Spec 3.3 Determined to Provide Too Little Borated Water for Safety Injection.Caused by Imprecise Wording of Tech Spec. Low Level Alarm Setpoint Changed,Tech Spec Under Evaluation | /01T-0:on 800609,during Tech Spec Review,Tech Spec 3.3 Determined to Provide Too Little Borated Water for Safety Injection.Caused by Imprecise Wording of Tech Spec. Low Level Alarm Setpoint Changed,Tech Spec Under Evaluation | |
| 05000255/LER-1980-019, Forwards LER 80-019/01T-0 | Forwards LER 80-019/01T-0 | |
| 05000255/LER-1980-020-01, /01T-0:on 800711,control Rod Drive Mechanism Failed to Operate Properly,Resulting in Rod Being Misaligned for Approx Five Minutes.Caused by Dirty Control Relay Armatures & Contractor Interlock Which Resulted in Sticking | /01T-0:on 800711,control Rod Drive Mechanism Failed to Operate Properly,Resulting in Rod Being Misaligned for Approx Five Minutes.Caused by Dirty Control Relay Armatures & Contractor Interlock Which Resulted in Sticking | |
| 05000255/LER-1980-020, Forwards LER 80-020/01T-0 | Forwards LER 80-020/01T-0 | |
| 05000255/LER-1980-021-01, /01X-1:on 800725,during Valve Inservice Insp, Operator Opened Containment Sump Valve CV-3030.Valve Stayed Open 36-h.Caused by Operator Error.Valve Closed,Operator Counseled & Shift Turnover Checklist Revised | /01X-1:on 800725,during Valve Inservice Insp, Operator Opened Containment Sump Valve CV-3030.Valve Stayed Open 36-h.Caused by Operator Error.Valve Closed,Operator Counseled & Shift Turnover Checklist Revised | |
| 05000255/LER-1980-021, Forwards Corrected App C, Calculations of Radiological Effects as Results of Hypothetical Accident W/CV-3030 Open, to 800820 LER 80-021,Revision 1.Corrected Apps E & F Also Encl | Forwards Corrected App C, Calculations of Radiological Effects as Results of Hypothetical Accident W/CV-3030 Open, to 800820 LER 80-021,Revision 1.Corrected Apps E & F Also Encl | |
| 05000255/LER-1980-022, Forwards LER 80-022/03L-0 | Forwards LER 80-022/03L-0 | |
| 05000255/LER-1980-022-03, /03L-0:on 800710,2-h After Reactor Criticality, Channel NI-03 Not Declared Operable Prior to Reactor Startup.Caused by Failure of Shift Supervisor to Check Control Mechanism | /03L-0:on 800710,2-h After Reactor Criticality, Channel NI-03 Not Declared Operable Prior to Reactor Startup.Caused by Failure of Shift Supervisor to Check Control Mechanism | |
| 05000255/LER-1980-023-03, Containment High Radiation Detectors Re 1805 & 1807 Determined Inoperable.No Apparent Cause for Failure.Detectors Disassembled,Cleaned & Recoated & Are Now Functional | Containment High Radiation Detectors Re 1805 & 1807 Determined Inoperable.No Apparent Cause for Failure.Detectors Disassembled,Cleaned & Recoated & Are Now Functional | |
| 05000255/LER-1980-023, Forwards Updated LER 80-023/03X-1 | Forwards Updated LER 80-023/03X-1 | |
| 05000255/LER-1980-024, Forwards LER 80-024/01T-0 | Forwards LER 80-024/01T-0 | |
| 05000255/LER-1980-024-01, /01T-0:on 800731,w/diesel Generator & Charging Pump P-55A Inoperable,Backup Pump P-55B Failed.Diesel Generator Restored in One Hour.Caused by Pump Packing Failure on P-55B.Pump Repacked & Restored to Svc | /01T-0:on 800731,w/diesel Generator & Charging Pump P-55A Inoperable,Backup Pump P-55B Failed.Diesel Generator Restored in One Hour.Caused by Pump Packing Failure on P-55B.Pump Repacked & Restored to Svc | |
| 05000255/LER-1980-025, Forwards LER 80-025/01T-0 | Forwards LER 80-025/01T-0 | |
| 05000255/LER-1980-025-01, /01T-0:on 800801,during Vol Control Tank Venting, Unplanned Gaseous Release Occurred W/O 15-day Min Holdup. Caused by Either Dirt Trapped in Head Plate & Diaphragm or Uneven Tightening of Compressor Head Bolts | /01T-0:on 800801,during Vol Control Tank Venting, Unplanned Gaseous Release Occurred W/O 15-day Min Holdup. Caused by Either Dirt Trapped in Head Plate & Diaphragm or Uneven Tightening of Compressor Head Bolts | |
| 05000255/LER-1980-026, Forwards LER 80-026/03L-0 | Forwards LER 80-026/03L-0 | |
| 05000255/LER-1980-026-03, /03L-0:on 800719,during Refilling of Safety Injection tanks,FT-0313 Found Inoperable.Caused by Failure to Close Instrument Equalizing Valve During Recent Calibr | /03L-0:on 800719,during Refilling of Safety Injection tanks,FT-0313 Found Inoperable.Caused by Failure to Close Instrument Equalizing Valve During Recent Calibr | |
| 05000255/LER-1980-027-01, During Venting of Quench Tank to Waste Gas Surge Tank,Gaseous Release Occurred W/O 15 Day Min Holdup.Caused by Leaking Isolation Valve & Valve Pin Disassembly.Pin Replaced | During Venting of Quench Tank to Waste Gas Surge Tank,Gaseous Release Occurred W/O 15 Day Min Holdup.Caused by Leaking Isolation Valve & Valve Pin Disassembly.Pin Replaced | |
| 05000255/LER-1980-027, Forwards Updated LER 80-027/01X-1 | Forwards Updated LER 80-027/01X-1 | |
