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| 05000259/LER-1980-001, Supplemental LER 80-001/01T-1:on 800107,during Performance of Ster 7902 Per IE Bulletin 79-23,diesel Generator 3A Lost Speed Control.Caused by Deteriorated Elastomer Spider Coupling.Spider Coupling Replaced | Supplemental LER 80-001/01T-1:on 800107,during Performance of Ster 7902 Per IE Bulletin 79-23,diesel Generator 3A Lost Speed Control.Caused by Deteriorated Elastomer Spider Coupling.Spider Coupling Replaced | |
| 05000259/LER-1980-001-01, /01T-0:on 800107,in Cold Shutdown While Performing Tests Per IE Bulletin 79-28,speed Control on Diesel Generator 3A Was Lost.Caused by Broken Coupling Which Connects Speed Pickup to Generator Shaft.Coupling Replaced | /01T-0:on 800107,in Cold Shutdown While Performing Tests Per IE Bulletin 79-28,speed Control on Diesel Generator 3A Was Lost.Caused by Broken Coupling Which Connects Speed Pickup to Generator Shaft.Coupling Replaced | |
| 05000296/LER-1980-001, Forwards LER 80-001/03L-0 | Forwards LER 80-001/03L-0 | |
| 05000260/LER-1980-001, Forwards LER 80-001/03L-0 | Forwards LER 80-001/03L-0 | |
| 05000296/LER-1980-001-03, /03L-0:on 791230,w/Unit 3 in Shutdown,Bus Tie Board Was de-energized for Startup.Caused by Feeder Cable Failure.Work in Progress to Bypass Bad Cable Sections | /03L-0:on 791230,w/Unit 3 in Shutdown,Bus Tie Board Was de-energized for Startup.Caused by Feeder Cable Failure.Work in Progress to Bypass Bad Cable Sections | |
| 05000260/LER-1980-001-03, /03L-0:on 791229,during Normal Operation,While Performing SI 4.2.B-1,switch 1 on Reactor Water Level LITS-3-58D Failed to Operate.Caused by Rendom Failure of Switch in Yarway Model 4418CE.Switch Replaced | /03L-0:on 791229,during Normal Operation,While Performing SI 4.2.B-1,switch 1 on Reactor Water Level LITS-3-58D Failed to Operate.Caused by Rendom Failure of Switch in Yarway Model 4418CE.Switch Replaced | |
| 05000259/LER-1980-002-03, /03L-0:on 800112,during Shutdown for Refueling, Wind Direction Channel at 33-ft Elevation Failed Upscale. Caused by Lightning Damage at Meteorological Tower.Series 312D Millivolt to Current Converter Repaired | /03L-0:on 800112,during Shutdown for Refueling, Wind Direction Channel at 33-ft Elevation Failed Upscale. Caused by Lightning Damage at Meteorological Tower.Series 312D Millivolt to Current Converter Repaired | |
| 05000259/LER-1980-002, Forwards LER 80-002/03L-0 | Forwards LER 80-002/03L-0 | |
| 05000260/LER-1980-002-03, /03L-0:on 791222,w/unit in Cold Shutdown,Found That Flow Control Valve 2-FCV-68-79 on Recirculation Sys Would Not Operate.Caused by Motor Pinion Gear Being Installed Backwards.Installment Procedures Will Be Revised | /03L-0:on 791222,w/unit in Cold Shutdown,Found That Flow Control Valve 2-FCV-68-79 on Recirculation Sys Would Not Operate.Caused by Motor Pinion Gear Being Installed Backwards.Installment Procedures Will Be Revised | |
| 05000296/LER-1980-002-03, /03L-0:on 800117,while Performing Surveillance Instruction 4.5.B.1.d,residual Heat Removal Sys Flow Control Valve FCV.74-73 Tripped in mid-position.Caused by Valve Stem Lubricant Losing Lubricity,Causing Force on Motor | /03L-0:on 800117,while Performing Surveillance Instruction 4.5.B.1.d,residual Heat Removal Sys Flow Control Valve FCV.74-73 Tripped in mid-position.Caused by Valve Stem Lubricant Losing Lubricity,Causing Force on Motor | |
| 05000260/LER-1980-002, Forwards LER 80-002/03L-0 | Forwards LER 80-002/03L-0 | |
| 05000296/LER-1980-002, Forwards LER 80-002/03L-0 | Forwards LER 80-002/03L-0 | |
| 05000260/LER-1980-003, Updated LER 80-03L/01X-1:on 800914,during EOC-3 Fuel Shuffling Operations,Fuel Assemblies Tz 758 & Tz 399 Discovered Misoriented 90 Degrees.Caused by Misorientation of 16 Fuel Assemblies During Previous Refueling Outage | Updated LER 80-03L/01X-1:on 800914,during EOC-3 Fuel Shuffling Operations,Fuel Assemblies Tz 758 & Tz 399 Discovered Misoriented 90 Degrees.Caused by Misorientation of 16 Fuel Assemblies During Previous Refueling Outage | |
| 05000259/LER-1980-003-03, /03L-0:on 800112,while Performing Local Leak Rate Testing During Refueling Shutdown,Path Leakage Through MSIVs for 3 of 4 Main Steam Lines Exceeded Leak Rate Per Tech Specs.Caused by Normal Wear & Erosion | /03L-0:on 800112,while Performing Local Leak Rate Testing During Refueling Shutdown,Path Leakage Through MSIVs for 3 of 4 Main Steam Lines Exceeded Leak Rate Per Tech Specs.Caused by Normal Wear & Erosion | |
| 05000296/LER-1980-003-03, /03L-0:on 800126,while Performing Control Rod Exercise,Control Rod 18-55 Would Not Insert W/Normal Drive Pressure.Caused by Failed Seal in Hydraulic Control Unit Directional Control Valve.Valve Repaired | /03L-0:on 800126,while Performing Control Rod Exercise,Control Rod 18-55 Would Not Insert W/Normal Drive Pressure.Caused by Failed Seal in Hydraulic Control Unit Directional Control Valve.Valve Repaired | |
| 05000260/LER-1980-003-03, /03L-0:on 800122,during Normal Operation,Momentary Breach of Secondary Containment Occurred When Air Lock Doors Between Turbine & Reactor Bldg Were Simultaneously Opened.Caused by Misaligned Latch Lock & Latch Bolt | /03L-0:on 800122,during Normal Operation,Momentary Breach of Secondary Containment Occurred When Air Lock Doors Between Turbine & Reactor Bldg Were Simultaneously Opened.Caused by Misaligned Latch Lock & Latch Bolt | |
| 05000296/LER-1980-003, Forwards LER 80-003/03L-0 | Forwards LER 80-003/03L-0 | |
| 05000259/LER-1980-003, Forwards LER 80-003/03L-0 | Forwards LER 80-003/03L-0 | |
| 05000260/LER-1980-004, Forwards LER 80-004/03L-0 | Forwards LER 80-004/03L-0 | |
| 05000296/LER-1980-004-03, /03L-0:on 800129,4160 Volt Bus Tie Board de-energized & Restored to Normal Cooling Tower Transformer Feeder.Caused by Need to Return Electrical Sys to Normal Configuration.No Recurrence Control Required | /03L-0:on 800129,4160 Volt Bus Tie Board de-energized & Restored to Normal Cooling Tower Transformer Feeder.Caused by Need to Return Electrical Sys to Normal Configuration.No Recurrence Control Required | |
| 05000296/LER-1980-004, Forwards LER 80-004/03L-0 | Forwards LER 80-004/03L-0 | |
| 05000259/LER-1980-004-01, /01T-0:on 800118,during Refueling Outage,Ndt Insp Revealed Linear Indication 7/8 Inch Long in Reactor or Water clean-up Sys Weld DRWC-1-2.Cause Unknown.Defect Will Be Removed & Weld Repaired Prior to Startup | /01T-0:on 800118,during Refueling Outage,Ndt Insp Revealed Linear Indication 7/8 Inch Long in Reactor or Water clean-up Sys Weld DRWC-1-2.Cause Unknown.Defect Will Be Removed & Weld Repaired Prior to Startup | |
| 05000260/LER-1980-004-03, /03L-0:on 800122,reactor Water Level Switch LIS-3- 203D Switch 2 Exceeded Tech Spec Limit During Normal Operation.Caused by Model 288A Switch Drifting Above Setpoint.Switch Tested,Inspected & Recalibr | /03L-0:on 800122,reactor Water Level Switch LIS-3- 203D Switch 2 Exceeded Tech Spec Limit During Normal Operation.Caused by Model 288A Switch Drifting Above Setpoint.Switch Tested,Inspected & Recalibr | |
| 05000259/LER-1980-004, Forwards LER 80-004/01T-0 | Forwards LER 80-004/01T-0 | |
| 05000296/LER-1980-005-03, /03L-0:on 800205,during Normal Operation,Fcv 74-73 Found Inoperable While Performing Surveillance Instruction. Caused by Random Failure of Gear Tooth in Limit Switch,Size SMB-2,Model 3-G.Limit Switch Replaced | /03L-0:on 800205,during Normal Operation,Fcv 74-73 Found Inoperable While Performing Surveillance Instruction. Caused by Random Failure of Gear Tooth in Limit Switch,Size SMB-2,Model 3-G.Limit Switch Replaced | |
| 05000260/LER-1980-005-03, /03L-0:on 800125,while Performing Special Instruction 4.2.B-1 During Normal Operation,Switches 1,2 & 4 on LIS-3-58A Did Not Operate at Proper Setpoint.Caused by Switch 4 Hanging on Magnet.Switches Adjusted | /03L-0:on 800125,while Performing Special Instruction 4.2.B-1 During Normal Operation,Switches 1,2 & 4 on LIS-3-58A Did Not Operate at Proper Setpoint.Caused by Switch 4 Hanging on Magnet.Switches Adjusted | |
| 05000260/LER-1980-005, Forwards LER 80-005/03L-0 | Forwards LER 80-005/03L-0 | |
| 05000259/LER-1980-005, Forwards LER 80-005/01T-0 | Forwards LER 80-005/01T-0 | |
| 05000296/LER-1980-005, Forwards LER 80-005/03L-0 | Forwards LER 80-005/03L-0 | |
| 05000259/LER-1980-005-01, /01T-0:on 800118,during Refueling Outage,While Performing Insp Per IE Bulletin 79-14,found No Seismic Restraints in Drywell of Reactor Bldg Closed Cooling Water Piping.Restraints Will Be Installed Prior to Startup | /01T-0:on 800118,during Refueling Outage,While Performing Insp Per IE Bulletin 79-14,found No Seismic Restraints in Drywell of Reactor Bldg Closed Cooling Water Piping.Restraints Will Be Installed Prior to Startup | |
| 05000296/LER-1980-006-03, /03L-0:on 800217,w/unit at Steady State Operation, Emergency Equipment Cooling Water Flow Did Not Meet Min Flow of 4 Gpm.Caused by Shells & Mud Preventing Adequate Flow Through Residual Heat Removal Pump 3B Seal Cooler Valve | /03L-0:on 800217,w/unit at Steady State Operation, Emergency Equipment Cooling Water Flow Did Not Meet Min Flow of 4 Gpm.Caused by Shells & Mud Preventing Adequate Flow Through Residual Heat Removal Pump 3B Seal Cooler Valve | |
| 05000260/LER-1980-006-03, /03L-0:on 800203,while Running Electrical Checks on Recirculation Pump,Reactor Recirculation Pump 2A Was Accidentally Tripped.Caused by Misinterpretation of Labels on Recirculation Pump Trip Breakers | /03L-0:on 800203,while Running Electrical Checks on Recirculation Pump,Reactor Recirculation Pump 2A Was Accidentally Tripped.Caused by Misinterpretation of Labels on Recirculation Pump Trip Breakers | |
| 05000296/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | |
| 05000260/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | |
| 05000259/LER-1980-006-03, /03L-0:on 800122,during Refueling Operations, Control Rod Driveline Accumulator Level Switch LS-1-305-129 on Unit 38-11 Was Found Inoperable.Caused by Broken Reed Switch.Switch Replaced | /03L-0:on 800122,during Refueling Operations, Control Rod Driveline Accumulator Level Switch LS-1-305-129 on Unit 38-11 Was Found Inoperable.Caused by Broken Reed Switch.Switch Replaced | |
| 05000259/LER-1980-006, Forwards LER 80-006/03L-0 | Forwards LER 80-006/03L-0 | |
| 05000260/LER-1980-007-03, /03L-0:on 800203,during Normal Operation,Reactor Recirculation Pump 2B Tripped.Caused by Pickup of Recirculation Motor Generator Set Generator Stator Temp Relay.Tests Run,No Problems Found | /03L-0:on 800203,during Normal Operation,Reactor Recirculation Pump 2B Tripped.Caused by Pickup of Recirculation Motor Generator Set Generator Stator Temp Relay.Tests Run,No Problems Found | |
| 05000296/LER-1980-007-03, /03L-0:on 800301,after Offsite Power Was Restored to 4-kV Bus Tie Board,Short Period of Time Elapsed Before Reclosure of Bus Tie Boarder Feeder Breaker.Apparent Disagreement in Time Is Still Being Investigated | /03L-0:on 800301,after Offsite Power Was Restored to 4-kV Bus Tie Board,Short Period of Time Elapsed Before Reclosure of Bus Tie Boarder Feeder Breaker.Apparent Disagreement in Time Is Still Being Investigated | |
| 05000260/LER-1980-007, Forwards LER 80-007/03L-0 | Forwards LER 80-007/03L-0 | |
| 05000259/LER-1980-007, Forwards LER 80-007/03L-0 | Forwards LER 80-007/03L-0 | |
| 05000259/LER-1980-007-03, /03L-0:on 800125,while Performing SI 4.2.A-16, Calibr Reactor Bldg Isolation &/Or Logic Timers,B Logic Channel Did Not Isolate.Caused by Intermittent Sticking of Relay R1B Resulting in Time Delay Contacts Being Closed | /03L-0:on 800125,while Performing SI 4.2.A-16, Calibr Reactor Bldg Isolation &/Or Logic Timers,B Logic Channel Did Not Isolate.Caused by Intermittent Sticking of Relay R1B Resulting in Time Delay Contacts Being Closed | |
| 05000296/LER-1980-007, Forwards LER 80-007/03L-0 | Forwards LER 80-007/03L-0 | |
| 05000296/LER-1980-008, Forwards LER 80-008/03L-0 | Forwards LER 80-008/03L-0 | |
| 05000260/LER-1980-008-31, /03L-0:on 800206,while Conducting Automatic Depressurization Sys Logic Functional Test,Relay 10A-K26 Manually Operated in Place of Relay 2E-K26 Causing Recirculation Pump 2B Trip.Caused by Operator Error | /03L-0:on 800206,while Conducting Automatic Depressurization Sys Logic Functional Test,Relay 10A-K26 Manually Operated in Place of Relay 2E-K26 Causing Recirculation Pump 2B Trip.Caused by Operator Error | |
| 05000296/LER-1980-008-03, /03L-0:on 800402,3B Diesel Generator Governor Actuator Would Not Respond Properly During Operability Surveillance Instruction.Cause Unknown.Oil Contamination Suspected.Sump Flushed & Refilled | /03L-0:on 800402,3B Diesel Generator Governor Actuator Would Not Respond Properly During Operability Surveillance Instruction.Cause Unknown.Oil Contamination Suspected.Sump Flushed & Refilled | |
| 05000259/LER-1980-008, Forwards Updated LER 80-008/03L-1 | Forwards Updated LER 80-008/03L-1 | |
| 05000260/LER-1980-008, Forwards LER 80-008/03L-0 | Forwards LER 80-008/03L-0 | |
| 05000259/LER-1980-008-03, During Scheduled Refueling Outage,Hpci Turbine Had Crack in Coupling Bearing Support Pedestal.Possibly Caused by Water Hammer in Main Steam Supply Line | During Scheduled Refueling Outage,Hpci Turbine Had Crack in Coupling Bearing Support Pedestal.Possibly Caused by Water Hammer in Main Steam Supply Line | |
| 05000296/LER-1980-009, Forwards LER 80-009/03L-0 | Forwards LER 80-009/03L-0 | |
| 05000296/LER-1980-009-03, /03L-0:on 800404,during Normal Operation,Relay 16A-K63B Overheated & Failed,Blowing Fuse Causing Containment Isolation Sys Group 6 Valves to Fail Closed. Caused by Natural Aging of Relay.Relay & Fuse Replaced | /03L-0:on 800404,during Normal Operation,Relay 16A-K63B Overheated & Failed,Blowing Fuse Causing Containment Isolation Sys Group 6 Valves to Fail Closed. Caused by Natural Aging of Relay.Relay & Fuse Replaced | |
