| | | Reporting criterion |
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| 05000333/LER-1979-001-03, /03L-0 on 790105:failure to Perform Core Performance Surveillance on 781210 & 781223.Currently Developing Surveillance Test Checkoff List,To Ensure That Test Is Not Overlooked Again | /03L-0 on 790105:failure to Perform Core Performance Surveillance on 781210 & 781223.Currently Developing Surveillance Test Checkoff List,To Ensure That Test Is Not Overlooked Again | |
| 05000333/LER-1979-001, Forwards LER 79-001/03L-0 | Forwards LER 79-001/03L-0 | |
| 05000333/LER-1979-002-03, /03L-0 on 790108:flow Biased Portion of Average Power Range Monitor B Inoperable.Caused by Operational Amplifier Failure.Circuit Board Replaced | /03L-0 on 790108:flow Biased Portion of Average Power Range Monitor B Inoperable.Caused by Operational Amplifier Failure.Circuit Board Replaced | |
| 05000333/LER-1979-002, Forwards LER 79-002/03L-0 | Forwards LER 79-002/03L-0 | |
| 05000333/LER-1979-003-03, /03L-0 on 790115:during Mainsteam Flow, Surveillance Procedure Instrument 02-DPIS-116B Found Set at 110 psid,2 Psid Above Tech Spec Max Due to Drift in Differential Pressure Switch | /03L-0 on 790115:during Mainsteam Flow, Surveillance Procedure Instrument 02-DPIS-116B Found Set at 110 psid,2 Psid Above Tech Spec Max Due to Drift in Differential Pressure Switch | |
| 05000333/LER-1979-003, Forwards LER 79-003/03L-0 | Forwards LER 79-003/03L-0 | |
| 05000333/LER-1979-004, Forwards LER 79-004/03L-0 | Forwards LER 79-004/03L-0 | |
| 05000333/LER-1979-004-03, /03L-0 on 790119:while Performing Operations Surveillance Test F-St-76D,water Leak Noted on Post Indicator Valve 76-FPS-30 & Discovered Water Leaking from Lubrication Line.Caused by Shovel Cut During Snow Removal | /03L-0 on 790119:while Performing Operations Surveillance Test F-St-76D,water Leak Noted on Post Indicator Valve 76-FPS-30 & Discovered Water Leaking from Lubrication Line.Caused by Shovel Cut During Snow Removal | |
| 05000333/LER-1979-005-04, /04L-0 on 790124: Apparent Excessive Solution Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel Noted.Calculations Show Tech Specs Not Exceeded | /04L-0 on 790124: Apparent Excessive Solution Release from Makeup Water Treatment Waste Neutralizer Tanks to Circulating Water Discharge Tunnel Noted.Calculations Show Tech Specs Not Exceeded | |
| 05000333/LER-1979-005, Forwards LER 79-005/04L-0 | Forwards LER 79-005/04L-0 | |
| 05000333/LER-1979-006, Forwards LER 79-006/03X-1 | Forwards LER 79-006/03X-1 | |
| 05000333/LER-1979-006-03, /03X-1:on 790124,during Normal Operations,Ground Fault on 125 Station Battery a Noted.Caused by Bellows Failure on Pressure Switch Circuit safety-relief Valve 02-RV-71J.Ground Cleared.Valve Restored to Operation | /03X-1:on 790124,during Normal Operations,Ground Fault on 125 Station Battery a Noted.Caused by Bellows Failure on Pressure Switch Circuit safety-relief Valve 02-RV-71J.Ground Cleared.Valve Restored to Operation | |
| 05000333/LER-1979-007, Forwards LER 79-007/03L-0 | Forwards LER 79-007/03L-0 | |
| 05000333/LER-1979-007-03, /03L-0 on 790125:jet Pump Operability Surveillance Had Not Been Conducted on 790123-24 as Required.Procedures Subsequently Revised | /03L-0 on 790125:jet Pump Operability Surveillance Had Not Been Conducted on 790123-24 as Required.Procedures Subsequently Revised | |
| 05000333/LER-1979-008-03, /03L-0 on 790125:core Performance Surveillance Not Done on 790120-22.Operations Surveillance Test for Daily Checks Was Being Developed to Include check-off of Surveillance Requirements.Caused by Operator Error | /03L-0 on 790125:core Performance Surveillance Not Done on 790120-22.Operations Surveillance Test for Daily Checks Was Being Developed to Include check-off of Surveillance Requirements.Caused by Operator Error | |
| 05000333/LER-1979-008, Forwards LER 79-008/03L-0 | Forwards LER 79-008/03L-0 | |
| 05000333/LER-1979-009, Forwards LER 79-009/03L-0 | Forwards LER 79-009/03L-0 | |
| 05000333/LER-1979-009-03, /03L-0 on 790205:rod Control Drive Rendered Inoperable in Order to Repair Leak in Control Rod Drive Sys Hydraulic Control Unit.Upon Completion of Repair,All Components Returned to Svc | /03L-0 on 790205:rod Control Drive Rendered Inoperable in Order to Repair Leak in Control Rod Drive Sys Hydraulic Control Unit.Upon Completion of Repair,All Components Returned to Svc | |
| 05000333/LER-1979-010, Forwards LER 79-010/03L-0 | Forwards LER 79-010/03L-0 | |
| 05000333/LER-1979-010-03, /03L-0 on 790202:step Increase in Indicated Core Flow.Caused by Earlier Failure of Square Root Computation Module for Jet Pump.Square Root Computation Module Replaced W/Identical Unit & Core Flow Evaluation Test Completed | /03L-0 on 790202:step Increase in Indicated Core Flow.Caused by Earlier Failure of Square Root Computation Module for Jet Pump.Square Root Computation Module Replaced W/Identical Unit & Core Flow Evaluation Test Completed | |
| 05000333/LER-1979-011-03, /03L-0 on 790214:drywell Atmospheric Sample Isolation Valve 27-SOV-123B Blew a Fuse.Caused by Shorted Valve Solenoid.Incident Recurred 790306.Will Submit Followup Rept When Valve Replacement Is Completed | /03L-0 on 790214:drywell Atmospheric Sample Isolation Valve 27-SOV-123B Blew a Fuse.Caused by Shorted Valve Solenoid.Incident Recurred 790306.Will Submit Followup Rept When Valve Replacement Is Completed | |
| 05000333/LER-1979-011, Forwards LER 79-011/03L-0 | Forwards LER 79-011/03L-0 | |
| 05000333/LER-1979-014, Forwards LER 79-014/01T-0 | Forwards LER 79-014/01T-0 | |
| 05000333/LER-1979-014-01, /01T-0 on 790312:calculations in Piping Stress Analysis Are Being Redone on Accelerated Basis by Architect/Engineer.Shutdown Will Continue Until All Problems Are Resolved.Final Rept on Matter Is Forthcoming | /01T-0 on 790312:calculations in Piping Stress Analysis Are Being Redone on Accelerated Basis by Architect/Engineer.Shutdown Will Continue Until All Problems Are Resolved.Final Rept on Matter Is Forthcoming | |
| 05000333/LER-1979-015, Forwards LER 79-015/03X-1 | Forwards LER 79-015/03X-1 | |
| 05000333/LER-1979-015-03, /03X-1:on 790315,during Load Reduction & Shutdown, Rod Sequence Control Sys Failed to Pass Operations Surveillance Test F-ST-23A.Cause Unstated.Mode Switch Moved from Shutdown Position.Sys Repaired | /03X-1:on 790315,during Load Reduction & Shutdown, Rod Sequence Control Sys Failed to Pass Operations Surveillance Test F-ST-23A.Cause Unstated.Mode Switch Moved from Shutdown Position.Sys Repaired | |
| 05000333/LER-1979-020, Forwards Revised LER 79-020/03X-1 | Forwards Revised LER 79-020/03X-1 | |
| 05000333/LER-1979-020-03, During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader | During Normal Cold Shutdown,Operations Surveillance Testing Revealed That Emergency Diesel Generator Starting Air Compressor 93-AC-B1 Did Not Load Properly.Caused by Dirt in Unloader | |
| 05000333/LER-1979-023-99, Fire Protection Piping Associated W/Hpci Maint Intentionally to Permit Required HPCI Maint.Partial Disassembly of Fire Protection Piping Required.Following Maint,Piping Restored | Fire Protection Piping Associated W/Hpci Maint Intentionally to Permit Required HPCI Maint.Partial Disassembly of Fire Protection Piping Required.Following Maint,Piping Restored | |
| 05000333/LER-1979-023, Forwards Revised LER 79-023/99X-1 | Forwards Revised LER 79-023/99X-1 | |
| 05000333/LER-1979-024, Forwards Revised LER 79-024/03X-1 | Forwards Revised LER 79-024/03X-1 | |
| 05000333/LER-1979-024-03, Emergency Svc Water Pump Failed to Meet Shutoff Head Requirements of Tech Spec. Caused by Normal Wear.Overhaul & Minor Mod of Impeller by Manufacturer Restored Shutoff Head to within Tech Specs | Emergency Svc Water Pump Failed to Meet Shutoff Head Requirements of Tech Spec. Caused by Normal Wear.Overhaul & Minor Mod of Impeller by Manufacturer Restored Shutoff Head to within Tech Specs | |
| 05000333/LER-1979-026, Forwards LER 79-026/03L-0 | Forwards LER 79-026/03L-0 | |
| 05000333/LER-1979-026-03, /03L-0 on 790507:radwaste Bldg Exhaust Fan 69-FN-8A Did Not Trip Per Hi-Hi Radiation Signal.Caused by Misadjusted Position Switch Associated W/Discharge Damper. Switch Linkage Adjusted | /03L-0 on 790507:radwaste Bldg Exhaust Fan 69-FN-8A Did Not Trip Per Hi-Hi Radiation Signal.Caused by Misadjusted Position Switch Associated W/Discharge Damper. Switch Linkage Adjusted | |
| 05000333/LER-1979-027-03, /03L-0 on 790514:instrument 02-3-LIS-72D Tripped Minus 47.3 Inches.Instrument Recalibr,Then Replaced.Weekly Testing Will Continue to Assure Good Performance | /03L-0 on 790514:instrument 02-3-LIS-72D Tripped Minus 47.3 Inches.Instrument Recalibr,Then Replaced.Weekly Testing Will Continue to Assure Good Performance | |
| 05000333/LER-1979-027, Forwards LER 79-027/03L-0 | Forwards LER 79-027/03L-0 | |
| 05000333/LER-1979-028-03, /03L-0 on 790517:during Cold Shutdown,Level Instrument of Carbon Dioxide Storage Sys Was Out of Calibr. Caused by Procedural Error.Instrument Racalibr & Satisfactorily Tested | /03L-0 on 790517:during Cold Shutdown,Level Instrument of Carbon Dioxide Storage Sys Was Out of Calibr. Caused by Procedural Error.Instrument Racalibr & Satisfactorily Tested | |
| 05000333/LER-1979-028, Forwards LER 79-028/03L-0 | Forwards LER 79-028/03L-0 | |
| 05000333/LER-1979-029, Forwards LER 79-029/03L-0 | Forwards LER 79-029/03L-0 | |
| 05000333/LER-1979-029-03, /03L-0 on 790518:during Snubber insp,14 Snubbers Required Some Work & Six Snubbers Were Determined to Be Potentially Inoperable.Snubbers Removed & Tested.Two Snubbers Failed Test & Were Declared Inoperable | /03L-0 on 790518:during Snubber insp,14 Snubbers Required Some Work & Six Snubbers Were Determined to Be Potentially Inoperable.Snubbers Removed & Tested.Two Snubbers Failed Test & Were Declared Inoperable | |
| 05000333/LER-1979-030, Forwards LER 79-030/03L-0 | Forwards LER 79-030/03L-0 | |
| 05000333/LER-1979-030-03, /03L-0 on 790518:during Cold Shutdown,Test Point Was Discovered in Error.Caused by Deviations in Conduction of Surveillance Test Procedures F-ISP-89.Procedure Was Immediately Correted & Surveillance Complete | /03L-0 on 790518:during Cold Shutdown,Test Point Was Discovered in Error.Caused by Deviations in Conduction of Surveillance Test Procedures F-ISP-89.Procedure Was Immediately Correted & Surveillance Complete | |
| 05000333/LER-1979-031, Forwards LER 79-031/03L-0 | Forwards LER 79-031/03L-0 | |
| 05000333/LER-1979-031-03, /03L-0 on 790519:fire Door Between North & South Emergency Switch Gear Rooms Failed to Close on Automatic Signal.Door & Closing Mechanism Lubricated & Adjusted | /03L-0 on 790519:fire Door Between North & South Emergency Switch Gear Rooms Failed to Close on Automatic Signal.Door & Closing Mechanism Lubricated & Adjusted | |
| 05000333/LER-1979-032, Forwards LER 79-032/03L-0 | Forwards LER 79-032/03L-0 | |
| 05000333/LER-1979-032-03, /03L-0 on 790519:sequencing Timer Associated W/Total Flooding Carbon Dioxide Sys Not Functioning Properly.Cause Not Stated.Sequencing Timer Cams Adjusted | /03L-0 on 790519:sequencing Timer Associated W/Total Flooding Carbon Dioxide Sys Not Functioning Properly.Cause Not Stated.Sequencing Timer Cams Adjusted | |
| 05000333/LER-1979-033-03, /03L-0 on 790524:during Review of Plant Sys, Determined That Reactor Bldg Cooling Sys Supply & Return Lines to Drywell Equipment Drain Sump Did Not Have Seismic Stress Analysis Performed.Uncertain If It Is Required | /03L-0 on 790524:during Review of Plant Sys, Determined That Reactor Bldg Cooling Sys Supply & Return Lines to Drywell Equipment Drain Sump Did Not Have Seismic Stress Analysis Performed.Uncertain If It Is Required | |
| 05000333/LER-1979-033, Forwards LER 79-033/03L-0 | Forwards LER 79-033/03L-0 | |
| 05000333/LER-1979-034-03, /03L-0 on 790531:data Sheets Associated W/Instrument Surveillance Procedures F-ISP-4.5 Had Not Been Revised as Part of Procedure Revision Which Changed Instruments Calibr Range.Personnel Reinstructed | /03L-0 on 790531:data Sheets Associated W/Instrument Surveillance Procedures F-ISP-4.5 Had Not Been Revised as Part of Procedure Revision Which Changed Instruments Calibr Range.Personnel Reinstructed | |
| 05000333/LER-1979-034, Forwards LER 79-034/03L-0 | Forwards LER 79-034/03L-0 | |
