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| 05000368/LER-1983-001-03, /03L-0:on 830106,during Mode 1,control Room Emergency Air Conditioner 2VE-1B Failed Surveillance Test Due to Excessive Compressor Cycling.Caused by Low Freon Due to Leak on Discharge Relief Valves.Valve Will Be Replaced | /03L-0:on 830106,during Mode 1,control Room Emergency Air Conditioner 2VE-1B Failed Surveillance Test Due to Excessive Compressor Cycling.Caused by Low Freon Due to Leak on Discharge Relief Valves.Valve Will Be Replaced | |
| 05000313/LER-1983-001, Forwards LER 83-001/03L-0 | Forwards LER 83-001/03L-0 | |
| 05000313/LER-1983-001-03, /03L-0:on 830110,pressurizer Code Relief Valve Setpoint Averaged Above Tech Spec Limit During Setpoint Testing.Cause Unknown.Spring Compression Adjusted on Test Stand.Valve Retested & Acceptable Results Obtained | /03L-0:on 830110,pressurizer Code Relief Valve Setpoint Averaged Above Tech Spec Limit During Setpoint Testing.Cause Unknown.Spring Compression Adjusted on Test Stand.Valve Retested & Acceptable Results Obtained | |
| 05000368/LER-1983-001, Forwards LER 83-001/03L-0 | Forwards LER 83-001/03L-0 | |
| 05000368/LER-1983-002-03, /03L-0:on 830106,control Room Indication Lost for Intake Structure Exhaust Fan 2VEF-25B.Caused by Opened Fuse Due to Grounded Motor Power Cable.Cable Replaced & Exhaust Fan Returned to Svc | /03L-0:on 830106,control Room Indication Lost for Intake Structure Exhaust Fan 2VEF-25B.Caused by Opened Fuse Due to Grounded Motor Power Cable.Cable Replaced & Exhaust Fan Returned to Svc | |
| 05000368/LER-1983-002, Forwards LER 83-002/03L-0 | Forwards LER 83-002/03L-0 | |
| 05000368/LER-1983-003, Forwards LER 83-003/03L-0 | Forwards LER 83-003/03L-0 | |
| 05000368/LER-1983-003-03, /03L-0:on 830109,alarm Received on Svc Water Monitor 2RITS-1453 for Shutdown Cooling Hx,Indicating Tube Leak.Cause Undetermined.Tubes Plugged | /03L-0:on 830109,alarm Received on Svc Water Monitor 2RITS-1453 for Shutdown Cooling Hx,Indicating Tube Leak.Cause Undetermined.Tubes Plugged | |
| 05000313/LER-1983-003, Forwards LER 83-003/03L-0 | Forwards LER 83-003/03L-0 | |
| 05000368/LER-1983-004-03, /03L-0:on 830114,while in Mode 5,fire Barrier Penetration Found Unsealed.Probably Caused by Personnel Error.Fire Watch Posted.Penetration Sealed & Inspected | /03L-0:on 830114,while in Mode 5,fire Barrier Penetration Found Unsealed.Probably Caused by Personnel Error.Fire Watch Posted.Penetration Sealed & Inspected | |
| 05000368/LER-1983-004-01, /01T-0:on 831212,personnel Determined That During Oct 1982 18-month Test,Not All Containment Penetration Conductor Overcurrent Protection Devices Tested Per Tech Spec 4.8.2.5.a.2 | /01T-0:on 831212,personnel Determined That During Oct 1982 18-month Test,Not All Containment Penetration Conductor Overcurrent Protection Devices Tested Per Tech Spec 4.8.2.5.a.2 | |
| 05000368/LER-1983-004, Forwards LER 83-004/03L-0 | Forwards LER 83-004/03L-0 | |
| 05000313/LER-1983-004-03, /03L-0:on 830214,RCS Pressure Transmitters PT-1040 & PT-1020 Found Out of Tolerance.Caused by Transmitter Drift.Transmitter Recalibr & Left within Allowable Tolerance | /03L-0:on 830214,RCS Pressure Transmitters PT-1040 & PT-1020 Found Out of Tolerance.Caused by Transmitter Drift.Transmitter Recalibr & Left within Allowable Tolerance | |
| 05000313/LER-1983-004, Forwards LER 83-004/03L-0 | Forwards LER 83-004/03L-0 | |
| 05000313/LER-1983-005-03, /03L-0:on 830328,motors for Svc Water Pumps P-4B & P-4C Observed to Have Upper Oil Reservoir Piping Altered. Caused by Installation of Oil Drain to Facilitate Draining Oil from Upper Oil Reservoir | /03L-0:on 830328,motors for Svc Water Pumps P-4B & P-4C Observed to Have Upper Oil Reservoir Piping Altered. Caused by Installation of Oil Drain to Facilitate Draining Oil from Upper Oil Reservoir | |
| 05000313/LER-1983-005, Forwards LER 83-005/03L-0 | Forwards LER 83-005/03L-0 | |
| 05000368/LER-1983-005, Forwards LER 83-005/03L-0 | Forwards LER 83-005/03L-0 | |
| 05000313/LER-1983-006, Forwards LER 83-006/03L-0 | Forwards LER 83-006/03L-0 | |
| 05000313/LER-1983-006-03, /03L-0:on 830321,reactor Coolant Pressure Transmitter PT-1023 Found to Be Out of Tolerance During Reactor Protective Sys Channel B Calibr.Caused by Instrument Drift.All Reactor Coolant Pressure Instrumentation Calibr | /03L-0:on 830321,reactor Coolant Pressure Transmitter PT-1023 Found to Be Out of Tolerance During Reactor Protective Sys Channel B Calibr.Caused by Instrument Drift.All Reactor Coolant Pressure Instrumentation Calibr | |
| 05000368/LER-1983-006, Forwards LER 83-006/03L-0 | Forwards LER 83-006/03L-0 | |
| 05000368/LER-1983-006-03, /03L-0:on 830202,while in Mode 1 at 33% Power, Control Room a Emergency Chiller 2VE-1A Tripped on High Condenser Pressure During Preventive Maint.Caused by Defective Power Supply.Power Supply Replaced | /03L-0:on 830202,while in Mode 1 at 33% Power, Control Room a Emergency Chiller 2VE-1A Tripped on High Condenser Pressure During Preventive Maint.Caused by Defective Power Supply.Power Supply Replaced | |
| 05000368/LER-1983-007, Forwards LER 83-007/03L-0 | Forwards LER 83-007/03L-0 | |
| 05000313/LER-1983-007, Revised LER 83-007/03X-1:on 830308 & 21,reactor Bldg Pressure Switches PS-2403 & PS-2401 Found to Be Out of Tolerance,Opening at 18.9 Psia.Pressure Switches Reset at 18.5 Psia Per Calibr Procedure | Revised LER 83-007/03X-1:on 830308 & 21,reactor Bldg Pressure Switches PS-2403 & PS-2401 Found to Be Out of Tolerance,Opening at 18.9 Psia.Pressure Switches Reset at 18.5 Psia Per Calibr Procedure | |
| 05000313/LER-1983-007-03, /03L-0:on 830308,during Performance of Reactor Protection Sys Channel D Calibr,Reactor Bldg Pressure Switch PS-2403 Found Out of Tolerance.Caused by Instrument Drift. Switch Reset Per Reactor Protection Sys Procedure | /03L-0:on 830308,during Performance of Reactor Protection Sys Channel D Calibr,Reactor Bldg Pressure Switch PS-2403 Found Out of Tolerance.Caused by Instrument Drift. Switch Reset Per Reactor Protection Sys Procedure | |
| 05000313/LER-1983-008-03, /03L-0:on 830327,lead Hydrogen Exhaust Fan USF-30A Failed to Attain Sufficient Flow.Caused by Oxidation in Pressure Control Valve PCV-7447 Due to Water in Hydrogen Purge Sys.Valve Disassembled & Corroded Components Replaced | /03L-0:on 830327,lead Hydrogen Exhaust Fan USF-30A Failed to Attain Sufficient Flow.Caused by Oxidation in Pressure Control Valve PCV-7447 Due to Water in Hydrogen Purge Sys.Valve Disassembled & Corroded Components Replaced | |
| 05000368/LER-1983-008, Forwards LER 83-008/03L-0 | Forwards LER 83-008/03L-0 | |
| 05000313/LER-1983-008, Forwards LER 83-008/03L-0 | Forwards LER 83-008/03L-0 | |
| 05000313/LER-1983-009, Forwards LER 83-009/03L-0 | Forwards LER 83-009/03L-0 | |
| 05000313/LER-1983-009-03, /03L-0:on 830405,during Hot Shutdown After Refueling Outage,Discovered That Nonqualified Diaphragm Was Used to Repair Pressure Switch PS-7503 in Standby Hydrogen Purge Sys.Qualified Pressure Switch Obtained & Installed | /03L-0:on 830405,during Hot Shutdown After Refueling Outage,Discovered That Nonqualified Diaphragm Was Used to Repair Pressure Switch PS-7503 in Standby Hydrogen Purge Sys.Qualified Pressure Switch Obtained & Installed | |
| 05000368/LER-1983-009, Forwards LER 83-009/01T-0 | Forwards LER 83-009/01T-0 | |
| 05000368/LER-1983-010, Forwards LER 83-010/03L-0 | Forwards LER 83-010/03L-0 | |
| 05000313/LER-1983-010, Forwards LER 83-010/03L-0 | Forwards LER 83-010/03L-0 | |
| 05000368/LER-1983-011-03, /03L-0:on 830218,during Mode 3 & Feeding of Steam Generators W/Emergency Feedwater Pump 2P-7B,control Valve 2CV-1036 Failed to Close.Caused by Shorted Relay Coil Ite Imperial 220-EB220PA-5.Relay Replaced W/Gould Relay | /03L-0:on 830218,during Mode 3 & Feeding of Steam Generators W/Emergency Feedwater Pump 2P-7B,control Valve 2CV-1036 Failed to Close.Caused by Shorted Relay Coil Ite Imperial 220-EB220PA-5.Relay Replaced W/Gould Relay | |
| 05000368/LER-1983-011, Forwards LER 83-011/03L-0 | Forwards LER 83-011/03L-0 | |
| 05000313/LER-1983-012-03, /03L-0:on 830519,w/plant Heatup/Startup in Progress,Auxiliary Feedwater Pump P-75 Outboard Mechanical Seal Failed.Cause Unknown.Seal Rebuilt & Reinstalled | /03L-0:on 830519,w/plant Heatup/Startup in Progress,Auxiliary Feedwater Pump P-75 Outboard Mechanical Seal Failed.Cause Unknown.Seal Rebuilt & Reinstalled | |
| 05000368/LER-1983-012, Forwards LER 83-012/03L-0 | Forwards LER 83-012/03L-0 | |
| 05000368/LER-1983-012-03, /03L-0:on 830222,steam Driven Emergency Feedwater Pump 2P-7A Would Not Attain Rated Speed or Discharge Pressure During Surveillance Test.Caused by Setpoint Drift in Speed Controller.Converter Gain Adjusted | /03L-0:on 830222,steam Driven Emergency Feedwater Pump 2P-7A Would Not Attain Rated Speed or Discharge Pressure During Surveillance Test.Caused by Setpoint Drift in Speed Controller.Converter Gain Adjusted | |
| 05000313/LER-1983-013-03, /03L-0:on 830520,while Raising Steam Generator Level for Wet Layup,Emergency Feedwater Pump P-7B Indicated Flow Appeared Degraded.Caused by Cavitation at High Flows from Suction Fouling Due to Lodged Glove | /03L-0:on 830520,while Raising Steam Generator Level for Wet Layup,Emergency Feedwater Pump P-7B Indicated Flow Appeared Degraded.Caused by Cavitation at High Flows from Suction Fouling Due to Lodged Glove | |
| 05000368/LER-1983-014, Forwards LER 83-014/01T-0 | Forwards LER 83-014/01T-0 | |
| 05000313/LER-1983-014-03, /03L-0:on 830609,auxiliary Feedwater Pump P-75 Rendered Inoperable.Caused by Supply Piping Seal Break Due to Piping Misalignment.Piping Replaced & Realigned to Reduce Stress | /03L-0:on 830609,auxiliary Feedwater Pump P-75 Rendered Inoperable.Caused by Supply Piping Seal Break Due to Piping Misalignment.Piping Replaced & Realigned to Reduce Stress | |
| 05000313/LER-1983-015-03, /03L-0:on 830616,while in Hot Shutdown After Reactor Trip,Hpi Control Valve CV-1219 Failed to Open on Demand from Control Room.Cause Not Determined.Operator & Switches Inspected & Switch Settings Checked | /03L-0:on 830616,while in Hot Shutdown After Reactor Trip,Hpi Control Valve CV-1219 Failed to Open on Demand from Control Room.Cause Not Determined.Operator & Switches Inspected & Switch Settings Checked | |
| 05000368/LER-1983-015-03, /03L-0:on 830308,containment Spray Actuation Sys (CSAS) Inadvertently Actuated.Caused by Defective K1523 Relay Controlling Trip Path 2 or 4 in Csas.Relay Replaced | /03L-0:on 830308,containment Spray Actuation Sys (CSAS) Inadvertently Actuated.Caused by Defective K1523 Relay Controlling Trip Path 2 or 4 in Csas.Relay Replaced | |
| 05000368/LER-1983-015, Forwards LER 83-015/03L-0 | Forwards LER 83-015/03L-0 | |
| 05000313/LER-1983-016-03, /03L-0:on 830710,pressurizer Cooldown Rate Exceeded Tech Spec Limit.Caused by Personnel Error & Procedural Inadequacies.Dhr Operations Procedure Revised to Add Caution Statements Re Cooldown | /03L-0:on 830710,pressurizer Cooldown Rate Exceeded Tech Spec Limit.Caused by Personnel Error & Procedural Inadequacies.Dhr Operations Procedure Revised to Add Caution Statements Re Cooldown | |
| 05000368/LER-1983-016, Forwards LER 83-016/03L-0 | Forwards LER 83-016/03L-0 | |
| 05000368/LER-1983-016-03, /03L-0:on 830311,containment Spray Pump 2P-35A Tripped Due to Tripped C Phase Instantaneous Overcurrent Relay.Caused by Deviation from Setpoint.Relay Reset.Periodic Checks Will Monitor Further Setpoint Drift | /03L-0:on 830311,containment Spray Pump 2P-35A Tripped Due to Tripped C Phase Instantaneous Overcurrent Relay.Caused by Deviation from Setpoint.Relay Reset.Periodic Checks Will Monitor Further Setpoint Drift | |
| 05000368/LER-1983-017-03, /03L-0:on 830312,sodium Hydroxide Addition Pump 2P-136A Failed to Start Upon Containment Spray Actuation Sys Actuation.Caused by Improper Limit Switch Setup.Maint Procedures Revised | /03L-0:on 830312,sodium Hydroxide Addition Pump 2P-136A Failed to Start Upon Containment Spray Actuation Sys Actuation.Caused by Improper Limit Switch Setup.Maint Procedures Revised | |
| 05000368/LER-1983-017, Forwards LER 83-017/03L-0 | Forwards LER 83-017/03L-0 | |
| 05000313/LER-1983-017-03, /03L-0:on 830707,once-through Steam Generator Exhibited Small Primary to Secondary Leak.During Cooldown, Leak Rate Increased to 0.2 Gpm.Caused by Intergranular Stress Corrosion Cracking on Single Tube 77-18 | /03L-0:on 830707,once-through Steam Generator Exhibited Small Primary to Secondary Leak.During Cooldown, Leak Rate Increased to 0.2 Gpm.Caused by Intergranular Stress Corrosion Cracking on Single Tube 77-18 | |
| 05000313/LER-1983-018-03, /03L-0:on 830726,emergency Feedwater Bypass Valve CV-2626 to Steam Generator B Failed to Open from Control Room During Surveillance Test.Caused by Failure of Interlock Contact Preventing Reverse Contactor to Open | /03L-0:on 830726,emergency Feedwater Bypass Valve CV-2626 to Steam Generator B Failed to Open from Control Room During Surveillance Test.Caused by Failure of Interlock Contact Preventing Reverse Contactor to Open | |