| | | Reporting criterion |
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| 05000333/LER-1983-001-04, /04T-0:on 821230,number of Fish Impinged During 24 H Period Exceeded 20,000.Caused by Bad Weather Conditions Experienced During Sampling.Sampling Continued Until Fish Count Fell Below 20,000 | /04T-0:on 821230,number of Fish Impinged During 24 H Period Exceeded 20,000.Caused by Bad Weather Conditions Experienced During Sampling.Sampling Continued Until Fish Count Fell Below 20,000 | |
| 05000333/LER-1983-002-03, /03L-0:on 830109,standby Gas Treatment Sys B Humidity Control Heater Out of Svc for Approx 5 H.Caused by Shorted Silicon Controlled Rectifier to Ground.Silicon Controlled Rectifier Removed | /03L-0:on 830109,standby Gas Treatment Sys B Humidity Control Heater Out of Svc for Approx 5 H.Caused by Shorted Silicon Controlled Rectifier to Ground.Silicon Controlled Rectifier Removed | |
| 05000333/LER-1983-002, Forwards LER 83-002/03L-0 | Forwards LER 83-002/03L-0 | |
| 05000333/LER-1983-003-03, /03L-0:on 830111,while Conducting Surveillance Testing on Core Sparger to Reactor Vessel D/P Switches 14DPIS-43A & B,Instrument Setpoints Found to Be Less Conservative than Required.Caused by Instrument Drift | /03L-0:on 830111,while Conducting Surveillance Testing on Core Sparger to Reactor Vessel D/P Switches 14DPIS-43A & B,Instrument Setpoints Found to Be Less Conservative than Required.Caused by Instrument Drift | |
| 05000333/LER-1983-003, Forwards LER 83-003/03L-0 | Forwards LER 83-003/03L-0 | |
| 05000333/LER-1983-004-03, /03L-0:on 830117,control Rod 18-27 Found Uncoupled & Would Not Recouple.Caused by Bent Uncoupling Rod in Control Rod Drive Mechanism & Loose Inner Filter.Mechanism Replaced W/Rebuilt Unit | /03L-0:on 830117,control Rod 18-27 Found Uncoupled & Would Not Recouple.Caused by Bent Uncoupling Rod in Control Rod Drive Mechanism & Loose Inner Filter.Mechanism Replaced W/Rebuilt Unit | |
| 05000333/LER-1983-004, Forwards LER 83-004/03L-0 | Forwards LER 83-004/03L-0 | |
| 05000333/LER-1983-005-03, /03L-0:on 830120,unplanned Release of Laundry Effluent Occurred Prior to Sampling After Laundry Drain Tank a Placed in Recirculation Lineup W/Discharge Lineup Still Available.Caused by Personnel Error.Operator Counseled | /03L-0:on 830120,unplanned Release of Laundry Effluent Occurred Prior to Sampling After Laundry Drain Tank a Placed in Recirculation Lineup W/Discharge Lineup Still Available.Caused by Personnel Error.Operator Counseled | |
| 05000333/LER-1983-005, Forwards LER 83-005/03L-0 | Forwards LER 83-005/03L-0 | |
| 05000333/LER-1983-006-03, /03L-0:on 830110,Wyle Labs Notified Util That as-found First & Second Actuations of Relief Valve D Were Out of Tech Spec Tolerances of 1,094 to 1,116 Psig.Cause of Setpoint Drift Unknown.Problem Under Investigation | /03L-0:on 830110,Wyle Labs Notified Util That as-found First & Second Actuations of Relief Valve D Were Out of Tech Spec Tolerances of 1,094 to 1,116 Psig.Cause of Setpoint Drift Unknown.Problem Under Investigation | |
| 05000333/LER-1983-006, Forwards LER 83-006/03L-0 | Forwards LER 83-006/03L-0 | |
| 05000333/LER-1983-007, Forwards LER 83-007/03L-0 | Forwards LER 83-007/03L-0 | |
| 05000333/LER-1983-007-03, /03L-0:on 830201,while Testing Reactor Low Water Level Scram Switch 02-3-LIS-101D,setpoint Found Less Conservative than Tech Spec Requirement.Caused by Instrument Drift.Setpoint Adjusted.Test Frequency Increased | /03L-0:on 830201,while Testing Reactor Low Water Level Scram Switch 02-3-LIS-101D,setpoint Found Less Conservative than Tech Spec Requirement.Caused by Instrument Drift.Setpoint Adjusted.Test Frequency Increased | |
| 05000333/LER-1983-008, Forwards LER 83-008/01T-0 | Forwards LER 83-008/01T-0 | |
| 05000333/LER-1983-008-01, /01T-0:on 830202,error in Odyn Base Deck for Reload 4 Analysis Caused Delta Critical Power Ratios for Pressurization Transients to Be Nonconservative.Caused by Improper Data Input Due to Personnel Error | /01T-0:on 830202,error in Odyn Base Deck for Reload 4 Analysis Caused Delta Critical Power Ratios for Pressurization Transients to Be Nonconservative.Caused by Improper Data Input Due to Personnel Error | |
| 05000333/LER-1983-009, Forwards LER 83-009/03L-0 | Forwards LER 83-009/03L-0 | |
| 05000333/LER-1983-009-03, /03L-0:on 830202,during Surveillance Testing on Emergency Svc Water Pump B Side,Pump Motor Supply Tripped Open on High Current Flow.Caused by Improper Adjustments During Maint.Trip Devices Adjusted Properly | /03L-0:on 830202,during Surveillance Testing on Emergency Svc Water Pump B Side,Pump Motor Supply Tripped Open on High Current Flow.Caused by Improper Adjustments During Maint.Trip Devices Adjusted Properly | |
| 05000333/LER-1983-010, Forwards LER 83-010/03L-0 | Forwards LER 83-010/03L-0 | |
| 05000333/LER-1983-010-03, /03L-0:on 830214,during Normal Operation,Rhr Pump B Removed from Svc for 3 Days to Inspect & Repair Discharge Check Valve.Three Missing Hanger Returning Cap Screws & One Sheared Cap Screw Identified.Mod Initiated | /03L-0:on 830214,during Normal Operation,Rhr Pump B Removed from Svc for 3 Days to Inspect & Repair Discharge Check Valve.Three Missing Hanger Returning Cap Screws & One Sheared Cap Screw Identified.Mod Initiated | |
| 05000333/LER-1983-011-01, /01T-0:on 830304,abnormally High Tailpiece Temp Indicated in Safety Relief Valves D & F in Target Rock Mode/Valves.Caused by Valve Leakage.Topworks Will Be Replaced During 1983 Refueling Outage | /01T-0:on 830304,abnormally High Tailpiece Temp Indicated in Safety Relief Valves D & F in Target Rock Mode/Valves.Caused by Valve Leakage.Topworks Will Be Replaced During 1983 Refueling Outage | |
| 05000333/LER-1983-011, Forwards LER 83-011/01T-0 | Forwards LER 83-011/01T-0 | |
| 05000333/LER-1983-012-04, /04T-0:on 830302,tritium Concentration in Inlet Sample Found 39.2 Times Control Sample Results.Caused by Downstream Sampling Points of Waste Discharge Rather than Normal Upstream Locations.Sample Not Representative | /04T-0:on 830302,tritium Concentration in Inlet Sample Found 39.2 Times Control Sample Results.Caused by Downstream Sampling Points of Waste Discharge Rather than Normal Upstream Locations.Sample Not Representative | |
| 05000333/LER-1983-012, Forwards LER 83-012/04T-0 | Forwards LER 83-012/04T-0 | |
| 05000333/LER-1983-013, Forwards LER 83-013/03L-0 | Forwards LER 83-013/03L-0 | |
| 05000333/LER-1983-013-03, /03L-0:on 830322,during Low Pressure Main Steam Line Switch 02-PS-134B Surveillance Testing,Setpoint Found Less Conservative than Tech Spec Limits.Caused by Instrument Drift.Setpoint Readjusted | /03L-0:on 830322,during Low Pressure Main Steam Line Switch 02-PS-134B Surveillance Testing,Setpoint Found Less Conservative than Tech Spec Limits.Caused by Instrument Drift.Setpoint Readjusted | |
| 05000333/LER-1983-014, Forwards LER 83-014/03L-0 | Forwards LER 83-014/03L-0 | |
| 05000333/LER-1983-014-03, /03L-0:on 830404,during Normal Plant Operations, Four Cells of B Side Station Battery Found to Have Through Wall Cracks Leaking Electrolyte.Caused by Mishandling of Cells During Original Installation.Cells Replaced | /03L-0:on 830404,during Normal Plant Operations, Four Cells of B Side Station Battery Found to Have Through Wall Cracks Leaking Electrolyte.Caused by Mishandling of Cells During Original Installation.Cells Replaced | |
| 05000333/LER-1983-015, Forwards LER 83-015/03L-0 | Forwards LER 83-015/03L-0 | |
| 05000333/LER-1983-015-03, /03L-0:on 830408,while Conducting Surveillance Test F-ST-1D,switch 2A-S12B Found Out of Normal Position in Test Mode D.Caused by Inadequacies in Implementation of Procedural Controls | /03L-0:on 830408,while Conducting Surveillance Test F-ST-1D,switch 2A-S12B Found Out of Normal Position in Test Mode D.Caused by Inadequacies in Implementation of Procedural Controls | |
| 05000333/LER-1983-016-03, During Surveillance Testing on D Max Stillwater Level High Radiation Monitor, Setpoint of high-high Trip Found Below Tech Spec Limit. Caused by Instrument Drift.Setpoint Adjusted | During Surveillance Testing on D Max Stillwater Level High Radiation Monitor, Setpoint of high-high Trip Found Below Tech Spec Limit. Caused by Instrument Drift.Setpoint Adjusted | |
| 05000333/LER-1983-016, Forwards Updated LER 83-016/03L-1 | Forwards Updated LER 83-016/03L-1 | |
| 05000333/LER-1983-017-03, /03L-0:on 830414,Nine Mile Point-South Oswego 115kV Line 5 Tripped & Locked Out,Removing One Reserve Power Supply from Svc.Caused by Line Automatically Isolating When Tower Hold Down Guy Pulled Out of Ground | /03L-0:on 830414,Nine Mile Point-South Oswego 115kV Line 5 Tripped & Locked Out,Removing One Reserve Power Supply from Svc.Caused by Line Automatically Isolating When Tower Hold Down Guy Pulled Out of Ground | |
| 05000333/LER-1983-017, Forwards LER 83-017/03L-0 | Forwards LER 83-017/03L-0 | |
| 05000333/LER-1983-018-04, /04T-0:on 830426,standby Gas Treatment Sys a Charcoal Failed Offsite Methyl Iodide Efficiency Test. Caused by Defective Test Instrument.Charcoal Replaced | /04T-0:on 830426,standby Gas Treatment Sys a Charcoal Failed Offsite Methyl Iodide Efficiency Test. Caused by Defective Test Instrument.Charcoal Replaced | |
| 05000333/LER-1983-019-03, /03L-1:on 830501,low Pressure Coolant Injection Sys Side B Independent Power Supply Inverter Indicated Minor Trouble Alarm.Caused by Failed Gate Firing Module Printed Circuit Board.Board Replaced | /03L-1:on 830501,low Pressure Coolant Injection Sys Side B Independent Power Supply Inverter Indicated Minor Trouble Alarm.Caused by Failed Gate Firing Module Printed Circuit Board.Board Replaced | |
| 05000333/LER-1983-020-03, /03L-0:on 830520,during Monthly Valve Cycling Surveillance Test of 23 MO-60 (HPCI Outboard Containment Isolation Bypass Valve),Valve Motor Tripped on Overload. Caused by Hard Valve Packing | /03L-0:on 830520,during Monthly Valve Cycling Surveillance Test of 23 MO-60 (HPCI Outboard Containment Isolation Bypass Valve),Valve Motor Tripped on Overload. Caused by Hard Valve Packing | |
| 05000333/LER-1983-021-03, During Mgt Review of Instrument Surveillance Procedure F-ISP-66-1, Scram Discharge Vol High Level Instrument Calibr, Rod Block Calibr Not Performed within 7 Days of Shutdown | During Mgt Review of Instrument Surveillance Procedure F-ISP-66-1, Scram Discharge Vol High Level Instrument Calibr, Rod Block Calibr Not Performed within 7 Days of Shutdown | |
| 05000333/LER-1983-022-03, /03X-1:on 830607,during Performance of Local Leak Rate Testing,Containment Spray Penetration X-39A Found W/Leakage Exceeding 0.6 La.Caused by Normal Use.Valve Seal, Disc &/Or Seat Surfaces Replaced | /03X-1:on 830607,during Performance of Local Leak Rate Testing,Containment Spray Penetration X-39A Found W/Leakage Exceeding 0.6 La.Caused by Normal Use.Valve Seal, Disc &/Or Seat Surfaces Replaced | |
| 05000333/LER-1983-024-03, /03L-0:on 830727,fire Barrier Penetration Seal in Reactor Bldg Opened & Remained Open Longer than 1 H W/O Establishment of Continuous Fire Watch.No Cause Stated.Watch Established Until Penetration Sealed | /03L-0:on 830727,fire Barrier Penetration Seal in Reactor Bldg Opened & Remained Open Longer than 1 H W/O Establishment of Continuous Fire Watch.No Cause Stated.Watch Established Until Penetration Sealed | |
| 05000333/LER-1983-025-03, /03L-0:on 830810,mgt Review of Surveillance Test Results Revealed Excessive Containment Isolation Valve Closure Times Signed Off as Satisfactory.Caused by Personnel Error.Personnel Counseled | /03L-0:on 830810,mgt Review of Surveillance Test Results Revealed Excessive Containment Isolation Valve Closure Times Signed Off as Satisfactory.Caused by Personnel Error.Personnel Counseled | |
| 05000333/LER-1983-026-03, /03L-0:on 830819,during Special Insp of Main Steam Line Pipe Supports & Restraints Outboard of Containment Msiv,Support Frame Above Trunnion H29-351 Found Bent.Caused by Insufficient Design Clearance | /03L-0:on 830819,during Special Insp of Main Steam Line Pipe Supports & Restraints Outboard of Containment Msiv,Support Frame Above Trunnion H29-351 Found Bent.Caused by Insufficient Design Clearance | |
| 05000333/LER-1983-028-03, /03L-0:on 830823,instrument 02-3-PS-52B Setpoint Found at 444 Psig,Below Tech Spec Limit of 450 Psig.Caused by Instrument Drift.Switch Setpoint Immediately Adjusted & Testing Frequency Increased | /03L-0:on 830823,instrument 02-3-PS-52B Setpoint Found at 444 Psig,Below Tech Spec Limit of 450 Psig.Caused by Instrument Drift.Switch Setpoint Immediately Adjusted & Testing Frequency Increased | |
| 05000333/LER-1983-029-03, /03L-0:on 830829,hydraulic Snubber H12-94 (12-1-S-20) Failed to Lockup in Compression When Tested. Caused by Poppet Spring Lodged Between Compression Poppet & Seat.Modified Valve Assembly Installed | /03L-0:on 830829,hydraulic Snubber H12-94 (12-1-S-20) Failed to Lockup in Compression When Tested. Caused by Poppet Spring Lodged Between Compression Poppet & Seat.Modified Valve Assembly Installed | |
| 05000333/LER-1983-030-03, /03L-0:on 830830,AE Advised That Emergency Diesel Generators Could Be Rendered Inoperable If Diesel Exhaust Sys Subjected to Tornado Wind Loads.Exhaust Sys Modified in Lieu of Performing Study | /03L-0:on 830830,AE Advised That Emergency Diesel Generators Could Be Rendered Inoperable If Diesel Exhaust Sys Subjected to Tornado Wind Loads.Exhaust Sys Modified in Lieu of Performing Study | |
| 05000333/LER-1983-031-03, /03L-0:on 830912,two of Five Tested Target Rock Safety/Relief Valves Had Setpoint Values Lower than Allowable Tolerance,Two Had Lift Setpoints Above Tolerance & One Did Not Lift.Valves Refurbished by Vendor | /03L-0:on 830912,two of Five Tested Target Rock Safety/Relief Valves Had Setpoint Values Lower than Allowable Tolerance,Two Had Lift Setpoints Above Tolerance & One Did Not Lift.Valves Refurbished by Vendor | |
| 05000333/LER-1983-032-03, /03L-0:on 830903,during post-mod Scram Test at 50% Rod Density,Two of Four Scram Instrument Vol Drain Valves Failed to Close in Specified Time Frame.Caused by Contact Between Handwheels & Object | /03L-0:on 830903,during post-mod Scram Test at 50% Rod Density,Two of Four Scram Instrument Vol Drain Valves Failed to Close in Specified Time Frame.Caused by Contact Between Handwheels & Object | |
| 05000333/LER-1983-033-03, /03L-0:on 830905 & 07,during Startup & Ascension to Power While Inerting Drywell,Torus Level Fell Below Tech Spec Requirements.Caused by Water Block in Dry Leg of Level Transmitter.Dry Leg Vented | /03L-0:on 830905 & 07,during Startup & Ascension to Power While Inerting Drywell,Torus Level Fell Below Tech Spec Requirements.Caused by Water Block in Dry Leg of Level Transmitter.Dry Leg Vented | |
| 05000333/LER-1983-034-03, /03L-0:on 830906,during Surveillance on Average Power Range Monitor C,Downscale Trip Level Setting Found Low.Caused by Instrument Drift.Monitor Adjusted.Testing Frequency Increased | /03L-0:on 830906,during Surveillance on Average Power Range Monitor C,Downscale Trip Level Setting Found Low.Caused by Instrument Drift.Monitor Adjusted.Testing Frequency Increased | |
| 05000333/LER-1983-035-03, /03L-0:on 830909,during Surveillance Testing,Main Steam Line High Flow Switch 02-DPIS-116D Did Not Trip Primary Containment Isolation Sys Logic.Caused by Failed Microswitch.Microswitch Replaced | /03L-0:on 830909,during Surveillance Testing,Main Steam Line High Flow Switch 02-DPIS-116D Did Not Trip Primary Containment Isolation Sys Logic.Caused by Failed Microswitch.Microswitch Replaced | |
| 05000333/LER-1983-036-03, /03L-0:on 830914,during Testing on High Drywell Pressure Switches,Eccs Actuation Occurred,Resulting in Starting of Core Spray Pumps a & B,Hcpi,Standby Gas Treatment Sys & Emergency Diesel Generators | /03L-0:on 830914,during Testing on High Drywell Pressure Switches,Eccs Actuation Occurred,Resulting in Starting of Core Spray Pumps a & B,Hcpi,Standby Gas Treatment Sys & Emergency Diesel Generators | |