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| 05000285/LER-1980-001-03, /03L-0:800102,while Operating at Approx 98% Power, Breaker Feeding Containment Cooling Fan Motor VA-3B Tripped.Caused by Trip Units Out of Calibr.Units A&C Were Replaced,Calibr & Tested Satisfactorily | /03L-0:800102,while Operating at Approx 98% Power, Breaker Feeding Containment Cooling Fan Motor VA-3B Tripped.Caused by Trip Units Out of Calibr.Units A&C Were Replaced,Calibr & Tested Satisfactorily | |
| 05000285/LER-1980-001, Forwards LER 80-001/03L-0 | Forwards LER 80-001/03L-0 | |
| 05000285/LER-1980-002-01, /01T-0:on 800117,while Performing Surveillance Test ST-SI/CS-1,containment Sump Safety Injection Recirculation Valve HCV-383-4 Failed to Close from Control Room Switch.Caused by Binding Auxiliary Interlock | /01T-0:on 800117,while Performing Surveillance Test ST-SI/CS-1,containment Sump Safety Injection Recirculation Valve HCV-383-4 Failed to Close from Control Room Switch.Caused by Binding Auxiliary Interlock | |
| 05000285/LER-1980-002, Forwards LER 80-002/01T-0 | Forwards LER 80-002/01T-0 | |
| 05000285/LER-1980-003-03, /03L-0:on 800122,during Special 24-h Diesel Generator Test,While Attempting to Load Generator,Generator Field Went to Max Excitation.Caused by Faulty Zener Diode & Corresponding Draft in A-C Regulator Panel | /03L-0:on 800122,during Special 24-h Diesel Generator Test,While Attempting to Load Generator,Generator Field Went to Max Excitation.Caused by Faulty Zener Diode & Corresponding Draft in A-C Regulator Panel | |
| 05000285/LER-1980-003, Forwards LER 80-003/03L-0 | Forwards LER 80-003/03L-0 | |
| 05000285/LER-1980-004, Forwards LER 80-004/01T-0 | Forwards LER 80-004/01T-0 | |
| 05000285/LER-1980-004-01, /01T-0:on 800126,while Fire Barrier Inside Empty Breaker Cubicle Was Degraded to Pull in New Cabling,Fire Watch Was Not Maintained Continuously.Caused by Fire Watch Not Receiving Accurate Info on Status of Barrier | /01T-0:on 800126,while Fire Barrier Inside Empty Breaker Cubicle Was Degraded to Pull in New Cabling,Fire Watch Was Not Maintained Continuously.Caused by Fire Watch Not Receiving Accurate Info on Status of Barrier | |
| 05000285/LER-1980-005-03, /03L-0:on 800131,during Containment Integrated Leak Rate Test,Release to Atmosphere Occurred.Caused by Failure of Rupture Disk.Containment Pressure Monitored for Remainder of Test | /03L-0:on 800131,during Containment Integrated Leak Rate Test,Release to Atmosphere Occurred.Caused by Failure of Rupture Disk.Containment Pressure Monitored for Remainder of Test | |
| 05000285/LER-1980-005, Forwards LER 80-005/03L-0 | Forwards LER 80-005/03L-0 | |
| 05000285/LER-1980-006-01, /01T-0:on 800415,as Required by IE Bulletin 79-01B,util Has Been Obtaining & Reviewing Test Data on Electrical Equipment.Samples Failed to Meet Acceptance Criteria.Caused by Steam & Moisture in Environ | /01T-0:on 800415,as Required by IE Bulletin 79-01B,util Has Been Obtaining & Reviewing Test Data on Electrical Equipment.Samples Failed to Meet Acceptance Criteria.Caused by Steam & Moisture in Environ | |
| 05000285/LER-1980-006, Forwards LER 80-006/01T-0 | Forwards LER 80-006/01T-0 | |
| 05000285/LER-1980-007-01, /01T-0:on 800430,penetration Cable Splices for Containment Ventilation Fans Found to Lack Documentation for LOCA Qualification.Splices Will Be Coated w/LOCA-qualified Sealant | /01T-0:on 800430,penetration Cable Splices for Containment Ventilation Fans Found to Lack Documentation for LOCA Qualification.Splices Will Be Coated w/LOCA-qualified Sealant | |
| 05000285/LER-1980-007, Forwards LER 80-007/01T-0 | Forwards LER 80-007/01T-0 | |
| 05000285/LER-1980-008-03, /03L-0:on 800515,during Check of Power Supply Trip Indicating lights,AB-1 Matrix Relay of Reactor Protective Sys Failed to Trip Clutch Power Supplies.Caused by Failure of Mercury Wetted Relay in Matrix Circuit | /03L-0:on 800515,during Check of Power Supply Trip Indicating lights,AB-1 Matrix Relay of Reactor Protective Sys Failed to Trip Clutch Power Supplies.Caused by Failure of Mercury Wetted Relay in Matrix Circuit | |
| 05000285/LER-1980-008, Forwards LER 80-008/03L-0 | Forwards LER 80-008/03L-0 | |
| 05000285/LER-1980-009-99, /99T-0:on 800522,during Maint on Stack Iodine Process Monitor,New Sensitivity Calibr Was Required.Caused by Use of Wrong Calibr Procedure.Training Will Be Conducted to Ensure Familiarity W/Procedures | /99T-0:on 800522,during Maint on Stack Iodine Process Monitor,New Sensitivity Calibr Was Required.Caused by Use of Wrong Calibr Procedure.Training Will Be Conducted to Ensure Familiarity W/Procedures | |
| 05000285/LER-1980-009, Forwards LER 80-009/99T-0 | Forwards LER 80-009/99T-0 | |
| 05000285/LER-1980-010, Forwards LER 80-010/01T-0 | Forwards LER 80-010/01T-0 | |
| 05000285/LER-1980-010-01, /01T-0:on 800516,during Cold Pressure Test,Leakage Discovered at Gasket Joint Between Pump Casing & Pump Cover on Reactor Coolant Pumps RC-3A,3B & 3C.Closure Studs Corroded by Boric Acid.Leaks Caused by Deteriorated Gaskets | /01T-0:on 800516,during Cold Pressure Test,Leakage Discovered at Gasket Joint Between Pump Casing & Pump Cover on Reactor Coolant Pumps RC-3A,3B & 3C.Closure Studs Corroded by Boric Acid.Leaks Caused by Deteriorated Gaskets | |
| 05000285/LER-1980-011, Forwards LER 80-011/03L-0 | Forwards LER 80-011/03L-0 | |
| 05000285/LER-1980-011-03, /03L-0:on 800528,during 1980 Refueling Outage Type B & C Containment Leak Rate Tests,Total Leakage Exceeded 0.6La Limit.Caused by Leaking Fuel Transfer Tube, Electrical,Mechanical Sleeve & Piping Penetrations | /03L-0:on 800528,during 1980 Refueling Outage Type B & C Containment Leak Rate Tests,Total Leakage Exceeded 0.6La Limit.Caused by Leaking Fuel Transfer Tube, Electrical,Mechanical Sleeve & Piping Penetrations | |
| 05000285/LER-1980-012, Forwards LER 80-012/03L-0 | Forwards LER 80-012/03L-0 | |
| 05000285/LER-1980-012-03, /03L-0:on 800708,during Performance of ST-RPS-3, F.2,discovered That Trip Unit 3 Setpoints Had Drifted Out of Spec in Nonconservative Direction.Caused by Normal Setpoint Drift.Setpoints Adjusted | /03L-0:on 800708,during Performance of ST-RPS-3, F.2,discovered That Trip Unit 3 Setpoints Had Drifted Out of Spec in Nonconservative Direction.Caused by Normal Setpoint Drift.Setpoints Adjusted | |
| 05000285/LER-1980-013, Forwards LER 80-013/03L-0 | Forwards LER 80-013/03L-0 | |
| 05000285/LER-1980-013-03, /03L-0:on 800707,during Normal Power Operation, Noted That Channel a Dc Sequencer SI-1 Had de-energized on-auto Light.Caused by Sequencer Circuitry Failure Due to Faulty Relay | /03L-0:on 800707,during Normal Power Operation, Noted That Channel a Dc Sequencer SI-1 Had de-energized on-auto Light.Caused by Sequencer Circuitry Failure Due to Faulty Relay | |
| 05000285/LER-1980-014, Forwards LER 80-014/03L-0 | Forwards LER 80-014/03L-0 | |
| 05000285/LER-1980-014-03, /03L-0:on 800709,transformer T4 of Diesel Generator 1 Failed.Caused by Shorted Coil.Transformer Replaced | /03L-0:on 800709,transformer T4 of Diesel Generator 1 Failed.Caused by Shorted Coil.Transformer Replaced | |
| 05000285/LER-1980-015, Forwards LER 80-015/03L-0 | Forwards LER 80-015/03L-0 | |
| 05000285/LER-1980-015-03, /03L-0:on 800710,during Insp,Noted That Trip Unit Setpoints on C Channel Had Become Positive Rather than Negative.Caused by Failure of 15-volt Power Supply for Trip Unit 4.Unit Calibr | /03L-0:on 800710,during Insp,Noted That Trip Unit Setpoints on C Channel Had Become Positive Rather than Negative.Caused by Failure of 15-volt Power Supply for Trip Unit 4.Unit Calibr | |
| 05000285/LER-1980-016, Forwards LER 80-016/03L-0 | Forwards LER 80-016/03L-0 | |
| 05000285/LER-1980-016-03, /03L-0:on 800621,weld on Suction Side of Pump CH-1B in Demineralized Water Flush Line Cracked.Caused by Vibration of Piping in Svc.Crack Was Ground Out & Rewelded Using Certified Procedure & Line Tested | /03L-0:on 800621,weld on Suction Side of Pump CH-1B in Demineralized Water Flush Line Cracked.Caused by Vibration of Piping in Svc.Crack Was Ground Out & Rewelded Using Certified Procedure & Line Tested | |
| 05000285/LER-1980-017-03, /03L-0:on 800804,during Normal Power Operation, Personnel Discovered Setpoint Selector Switches for RMO-61, Particulate Radiation Monitor,In Wrong Position.Caused by Personnel Error While Performing Test on Radiation Monitor | /03L-0:on 800804,during Normal Power Operation, Personnel Discovered Setpoint Selector Switches for RMO-61, Particulate Radiation Monitor,In Wrong Position.Caused by Personnel Error While Performing Test on Radiation Monitors | |
| 05000285/LER-1980-017, Forwards LER 80-017/03L-0 | Forwards LER 80-017/03L-0 | |
| 05000285/LER-1980-018-03, /03L-0:on 800808,while Attempting to Monitor Gas Space on Vct,Inadvertent Release of Radioactive Matl to Auxiliary Bldg Environ Occurred.Caused by Deteriorated Surgical Tubing on Gas Analyzer.Tubing Replaced | /03L-0:on 800808,while Attempting to Monitor Gas Space on Vct,Inadvertent Release of Radioactive Matl to Auxiliary Bldg Environ Occurred.Caused by Deteriorated Surgical Tubing on Gas Analyzer.Tubing Replaced | |
| 05000285/LER-1980-018, Forwards LER 80-018/03L-0 | Forwards LER 80-018/03L-0 | |
| 05000285/LER-1980-019, Forwards LER 80-019/03L-0 | Forwards LER 80-019/03L-0 | |
| 05000285/LER-1980-019-03, /03L-0:on 800904,seismic Pipe Restraints SIS-62 & SIS-7 Were Inadvertently Made Inoperable at Same Time. Restraints Were Being Upgraded in Response to IE Bulletin 79-14.Restraint SIS-7 Was Immediately Made Operable | /03L-0:on 800904,seismic Pipe Restraints SIS-62 & SIS-7 Were Inadvertently Made Inoperable at Same Time. Restraints Were Being Upgraded in Response to IE Bulletin 79-14.Restraint SIS-7 Was Immediately Made Operable | |
| 05000285/LER-1980-020, Forwards LER 80-020/03L-0 | Forwards LER 80-020/03L-0 | |
| 05000285/LER-1980-020-03, /03L-0:on 800905,axial Power Distribution Setpoints on D Channel Discovered Out of Tolerance in Nonconservative Direction.Caused by Dependent Setpoint Selection Switch Failure.Switch Cleaned & Returned to Svc | /03L-0:on 800905,axial Power Distribution Setpoints on D Channel Discovered Out of Tolerance in Nonconservative Direction.Caused by Dependent Setpoint Selection Switch Failure.Switch Cleaned & Returned to Svc | |
| 05000285/LER-1980-021, Forwards LER 80-021/03L-0 | Forwards LER 80-021/03L-0 | |
| 05000285/LER-1980-021-03, /03L-0:on 800910,transformer T4 of DG-1 Failed. Transformer Feeds Diesel Oil Immersion Heater & Alarm Relays.Caused by Moveable Armature Located on Immersion Heater Contractor.Armature Repaired | /03L-0:on 800910,transformer T4 of DG-1 Failed. Transformer Feeds Diesel Oil Immersion Heater & Alarm Relays.Caused by Moveable Armature Located on Immersion Heater Contractor.Armature Repaired | |
| 05000285/LER-1980-022, Forwards LER 80-022/03L-0 | Forwards LER 80-022/03L-0 | |
| 05000285/LER-1980-022-03, /03L-0:on 800911,during Safety Injection Actuation Signal Surveillance test,86B/VIAS Lockout Failed to Trip. Caused by Burned Coil.Coil Replaced W/Spare & Tested Satisfactorily for Proper Operation | /03L-0:on 800911,during Safety Injection Actuation Signal Surveillance test,86B/VIAS Lockout Failed to Trip. Caused by Burned Coil.Coil Replaced W/Spare & Tested Satisfactorily for Proper Operation | |
| 05000285/LER-1980-023-03, /03L-0:on 800908,during Routine Operations,Power to Lockout Relay Coil 86A1/CPHS Was Interrupted.Caused by Electrically Opened Contacts.Contacts Cleaned & Burnished | /03L-0:on 800908,during Routine Operations,Power to Lockout Relay Coil 86A1/CPHS Was Interrupted.Caused by Electrically Opened Contacts.Contacts Cleaned & Burnished | |
| 05000285/LER-1980-023, Forwards LER 80-023/03L-0 | Forwards LER 80-023/03L-0 | |
| 05000285/LER-1980-024-03, /03L-0:on 800926,while Completing Repairs on B Charging Pump,A Charging Pump Became Inoperable.Caused by Packing Cooling Pump Failure.Motor Replaced | /03L-0:on 800926,while Completing Repairs on B Charging Pump,A Charging Pump Became Inoperable.Caused by Packing Cooling Pump Failure.Motor Replaced | |
| 05000285/LER-1980-024, Forwards LER 80-024/03L-0 | Forwards LER 80-024/03L-0 | |
| 05000285/LER-1980-025, Forwards LER 80-025/03L-0 | Forwards LER 80-025/03L-0 | |
| 05000285/LER-1980-025-03, /03L-0:on 801027,during Power Operation While Completing Repairs on C Charging Pump,A Charging Pump Became Inoperable.Caused by Leak in Weld Joining Sys to Flushing Line.Weld Repaired & Pump Returned to Svc | /03L-0:on 801027,during Power Operation While Completing Repairs on C Charging Pump,A Charging Pump Became Inoperable.Caused by Leak in Weld Joining Sys to Flushing Line.Weld Repaired & Pump Returned to Svc | |