| | | Reporting criterion |
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| 05000364/LER-1983-001-03, Determined That Boron Concentration in Boron Injection Tank Out of Spec.Cause Not Stated.Tank Diluted & Boron Concentration Returned to within Tech Spec Limits | Determined That Boron Concentration in Boron Injection Tank Out of Spec.Cause Not Stated.Tank Diluted & Boron Concentration Returned to within Tech Spec Limits | |
| 05000348/LER-1983-001-03, /03L-0:on 830102,RCS Subcooling Monitor Channel 2 Declared Inoperable Following Receipt of Main Control Board Alarms.Caused by Faulty Printed Circuit Card.Connector Pins on Card Cleaned | /03L-0:on 830102,RCS Subcooling Monitor Channel 2 Declared Inoperable Following Receipt of Main Control Board Alarms.Caused by Faulty Printed Circuit Card.Connector Pins on Card Cleaned | |
| 05000348/LER-1983-002-03, /03L-0:on 830128,source Range Detector NI-31 Declared Inoperable Due to Low Detector Voltage.Caused by Setpoint Drift.High Voltage Power Supply Adjusted & Detector Returned to Svc | /03L-0:on 830128,source Range Detector NI-31 Declared Inoperable Due to Low Detector Voltage.Caused by Setpoint Drift.High Voltage Power Supply Adjusted & Detector Returned to Svc | |
| 05000348/LER-1983-002, Forwards LER 83-002/03L-0 | Forwards LER 83-002/03L-0 | |
| 05000364/LER-1983-002, Forwards LER 83-002/03L-0 | Forwards LER 83-002/03L-0 | |
| 05000364/LER-1983-002-03, /03L-0:on 830121,while Attempting to Increase Accumulator Nitrogen Pressure,Containment Isolation Valve Failed to Fully Open.Caused by Valve Binding Between Cage & Plug Assembly.Cage & Plug Replaced | /03L-0:on 830121,while Attempting to Increase Accumulator Nitrogen Pressure,Containment Isolation Valve Failed to Fully Open.Caused by Valve Binding Between Cage & Plug Assembly.Cage & Plug Replaced | |
| 05000364/LER-1983-003-03, /03L-0:on 830117,during Performance of RHR Valve Inservice Test,Motor Operated Valve 8888B Failed to Reopen After Being Stroked Closed.Caused by Loose Contacts in Valve Operator Limiting Switch.Contacts Replaced | /03L-0:on 830117,during Performance of RHR Valve Inservice Test,Motor Operated Valve 8888B Failed to Reopen After Being Stroked Closed.Caused by Loose Contacts in Valve Operator Limiting Switch.Contacts Replaced | |
| 05000364/LER-1983-003, Forwards LER 83-003/03L-0 | Forwards LER 83-003/03L-0 | |
| 05000348/LER-1983-003-03, /03L-0:on 830114,during Calibr & Functional Test, B Train Chlorine Detector Declared Inoperable Due to Failure of Tape Advance Mechanism.Caused by Paper Drive Motor Gear Failure.Paper Drive Replaced | /03L-0:on 830114,during Calibr & Functional Test, B Train Chlorine Detector Declared Inoperable Due to Failure of Tape Advance Mechanism.Caused by Paper Drive Motor Gear Failure.Paper Drive Replaced | |
| 05000364/LER-1983-004-03, /03L-0:on 830201,instrumentation Channel Associated W/Tavg Indicator TI-4120 Declared Inoperable After Failing High.Caused by Failure of Transistor on Lead Lag Card.Transistor Replaced | /03L-0:on 830201,instrumentation Channel Associated W/Tavg Indicator TI-4120 Declared Inoperable After Failing High.Caused by Failure of Transistor on Lead Lag Card.Transistor Replaced | |
| 05000348/LER-1983-004-03, /03L-0:on 830114,main Steam Safety Valves Q1N11V010A,Q1N11V010C,Q1N11V011C & Q1N11V012B Declared Inoperable Due to Relief Setpoint Being Out of Tolerance. Caused by Setpoint Drift.Valves Readjusted | /03L-0:on 830114,main Steam Safety Valves Q1N11V010A,Q1N11V010C,Q1N11V011C & Q1N11V012B Declared Inoperable Due to Relief Setpoint Being Out of Tolerance. Caused by Setpoint Drift.Valves Readjusted | |
| 05000364/LER-1983-005-03, /03L-0:on 830205,instrumentation Loop Associated W/Level Transmitter LT-474 Declared Inoperable Due to Trip Setpoint Out of Tolerance.Caused by Failure of Comparator Card.Card Replaced & Channel Declared Operable | /03L-0:on 830205,instrumentation Loop Associated W/Level Transmitter LT-474 Declared Inoperable Due to Trip Setpoint Out of Tolerance.Caused by Failure of Comparator Card.Card Replaced & Channel Declared Operable | |
| 05000348/LER-1983-005, Forwards LER 83-005/01T-0 | Forwards LER 83-005/01T-0 | |
| 05000348/LER-1983-005-01, /01T-0:on 830130,fuel Cladding Damage Found on 11 Cycle 4 Baffle Fuel Assemblies Located at Corner Injection Baffle Joints.Caused by Vibrations Induced by Water Jetting Through Baffle Joints.Design Mod Implemented | /01T-0:on 830130,fuel Cladding Damage Found on 11 Cycle 4 Baffle Fuel Assemblies Located at Corner Injection Baffle Joints.Caused by Vibrations Induced by Water Jetting Through Baffle Joints.Design Mod Implemented | |
| 05000364/LER-1983-006-03, /03L-0:on 830209,instrumentation Channel Associated W/Refueling Water Storage Tank Level Indicator LI4075A Declared Inoperable After Erroneous Indications Received.Cause Not Determined | /03L-0:on 830209,instrumentation Channel Associated W/Refueling Water Storage Tank Level Indicator LI4075A Declared Inoperable After Erroneous Indications Received.Cause Not Determined | |
| 05000348/LER-1983-006, Forwards LER 83-006/01T-0 | Forwards LER 83-006/01T-0 | |
| 05000348/LER-1983-006-01, /01T-0:on 830215,both Trains of Common Control Room Filtration Unit Penetration Room Filtration Sys Carbon Filters Train a Failed to Meet Criteria for Iodine Removal Efficiency.Caused by Misinterpretation of Reg Guide 1.52 | /01T-0:on 830215,both Trains of Common Control Room Filtration Unit Penetration Room Filtration Sys Carbon Filters Train a Failed to Meet Criteria for Iodine Removal Efficiency.Caused by Misinterpretation of Reg Guide 1.52 | |
| 05000348/LER-1983-007, Forwards LER 83-007/03L-0 | Forwards LER 83-007/03L-0 | |
| 05000364/LER-1983-007-03, /03L-0:on 830216,containment Isolation Valve Q2E21HV8880 Declared Inoperable After Failing to Operate Properly.Cause Not Determined.Inservice Test Performed & Valve Declared Operable | /03L-0:on 830216,containment Isolation Valve Q2E21HV8880 Declared Inoperable After Failing to Operate Properly.Cause Not Determined.Inservice Test Performed & Valve Declared Operable | |
| 05000348/LER-1983-007-03, /03L-0:on 830114,electrical Penetration Q1T52B038-B Failed Local Leak Rate Test.Caused by O-ring Damage at Inner Seal from Repairs During Previous Refueling outage.O-rings Replaced | /03L-0:on 830114,electrical Penetration Q1T52B038-B Failed Local Leak Rate Test.Caused by O-ring Damage at Inner Seal from Repairs During Previous Refueling outage.O-rings Replaced | |
| 05000364/LER-1983-008-03, /03L-0:on 830209,during Performance of Solid State Protection Sys Train B Operability Test,Train B Power Range High Setpoint Trip Logic Declared Inoperable.Caused by Failure of Universal Card | /03L-0:on 830209,during Performance of Solid State Protection Sys Train B Operability Test,Train B Power Range High Setpoint Trip Logic Declared Inoperable.Caused by Failure of Universal Card | |
| 05000348/LER-1983-008-03, /03L-0:on 830213,penetration Room Filtration Sys Declared Inoperable When Surveillance Test Not Performed Per Tech Specs.Caused by Personnel Error.Test Performed & Sys Declared Operable on 830214 | /03L-0:on 830213,penetration Room Filtration Sys Declared Inoperable When Surveillance Test Not Performed Per Tech Specs.Caused by Personnel Error.Test Performed & Sys Declared Operable on 830214 | |
| 05000348/LER-1983-008, Forwards LER 83-008/03L-0,83-006/03L-0,83-007/03L-0, 83-008/03L-0 & 83-011/03L-0.W/o LERs 83-006/03L-0, 83-007/03L-0,83-008/03L-0 & 83-011/03L-0 | Forwards LER 83-008/03L-0,83-006/03L-0,83-007/03L-0, 83-008/03L-0 & 83-011/03L-0.W/o LERs 83-006/03L-0, 83-007/03L-0,83-008/03L-0 & 83-011/03L-0 | |
| 05000364/LER-1983-009-03, /03L-0:on 830217,pressurizer PORV 444B Declared Inoperable When Pressurizer Pressure Controller Card 444A Failed Low.Caused by Failure of Driver Card.Porv 444B Declared Operable Following Calibr & Replacement of Card | /03L-0:on 830217,pressurizer PORV 444B Declared Inoperable When Pressurizer Pressure Controller Card 444A Failed Low.Caused by Failure of Driver Card.Porv 444B Declared Operable Following Calibr & Replacement of Card | |
| 05000348/LER-1983-009, Forwards LER 83-009/03L-0 | Forwards LER 83-009/03L-0 | |
| 05000348/LER-1983-009-03, /03L-0:on 830307,train a RHR Sys Declared Inoperable When RHR Pump 1A Inadvertently Secured.Caused by Misinterpretation of Instructions.Personnel Instructed to Communicate Clearly.Rhr Pump 1A Started | /03L-0:on 830307,train a RHR Sys Declared Inoperable When RHR Pump 1A Inadvertently Secured.Caused by Misinterpretation of Instructions.Personnel Instructed to Communicate Clearly.Rhr Pump 1A Started | |
| 05000348/LER-1983-010-03, /03L-0:on 830305,during Performance of Safety Injection W/Loss of Offsite Power Test,Rhr Pump 1B Declared Inoperable.Caused by Design Error Which Led to Damage to Train B Handswitch | /03L-0:on 830305,during Performance of Safety Injection W/Loss of Offsite Power Test,Rhr Pump 1B Declared Inoperable.Caused by Design Error Which Led to Damage to Train B Handswitch | |
| 05000364/LER-1983-011-03, /03L-0:on 830208,600-volt Load Ctr 1-2R Declared Inoperable When Incoming Power Supply Breaker ER02-1 Opened. Caused by Procedural Inadequacy.Caution Tags Placed in Appropriate Locations | /03L-0:on 830208,600-volt Load Ctr 1-2R Declared Inoperable When Incoming Power Supply Breaker ER02-1 Opened. Caused by Procedural Inadequacy.Caution Tags Placed in Appropriate Locations | |
| 05000348/LER-1983-011, Forwards LER 83-011/03L-0 | Forwards LER 83-011/03L-0 | |
| 05000348/LER-1983-011-03, /03L-0:on 830322,during Control Room Train A-B Ventilation Operability Test,Train Control Room Emergency Ventilation Sys B Declared Inoperable.Caused by Failed Damper Due to Breaker Overload.Overloads Reset | /03L-0:on 830322,during Control Room Train A-B Ventilation Operability Test,Train Control Room Emergency Ventilation Sys B Declared Inoperable.Caused by Failed Damper Due to Breaker Overload.Overloads Reset | |
| 05000348/LER-1983-012-03, /03L-0:on 830402,overtemp-delta Temp Loop 2 Channel II Declared Inoperable When Bistables 422C1-2 Tripped.Caused by Power Supply Failure of Comparator Card. Card Replaced & Loop Calibr | /03L-0:on 830402,overtemp-delta Temp Loop 2 Channel II Declared Inoperable When Bistables 422C1-2 Tripped.Caused by Power Supply Failure of Comparator Card. Card Replaced & Loop Calibr | |
| 05000364/LER-1983-013-03, /03L-0:on 830307,rod Control Sys Inoperable When Failure Alarm Received on Power Cabinet 2AC.On 830328,sys Inoperable When Shutdown Bank B Group 1 Rods Failed to Move Inward.Alarm Reset | /03L-0:on 830307,rod Control Sys Inoperable When Failure Alarm Received on Power Cabinet 2AC.On 830328,sys Inoperable When Shutdown Bank B Group 1 Rods Failed to Move Inward.Alarm Reset | |
| 05000348/LER-1983-013-03, /03L-0:on 830329,instrumentation Loop Associated W/Steam Generator 1A Level Transmitter LT-475 Declared Inoperable Due to Low Indication.Caused by Failure of Power Supply Card.Card Replaced | /03L-0:on 830329,instrumentation Loop Associated W/Steam Generator 1A Level Transmitter LT-475 Declared Inoperable Due to Low Indication.Caused by Failure of Power Supply Card.Card Replaced | |
| 05000348/LER-1983-014-03, /03L-0:on 830330,during Surveillance Test of Main Feedwater Pump Turbine 1A,RCS Tavg Decreased Below 541 F. Caused by Overfeeding of Steam Generators Due to Excessive Leak Past Main Feedwater Pump Discharge Valve | /03L-0:on 830330,during Surveillance Test of Main Feedwater Pump Turbine 1A,RCS Tavg Decreased Below 541 F. Caused by Overfeeding of Steam Generators Due to Excessive Leak Past Main Feedwater Pump Discharge Valve | |
| 05000348/LER-1983-014, Forwards LER 83-014/03L-0 | Forwards LER 83-014/03L-0 | |
| 05000364/LER-1983-014-03, /03L-0:on 830309,RCS Controlled Leakage of 31.7 Gpm Exceeded Tech Spec Limit of 31.0 Gpm.Caused by Performing Test W/Only One Letdown Orifice in Svc.Procedure Changed to Set Valves for Highest Normal Pressure | /03L-0:on 830309,RCS Controlled Leakage of 31.7 Gpm Exceeded Tech Spec Limit of 31.0 Gpm.Caused by Performing Test W/Only One Letdown Orifice in Svc.Procedure Changed to Set Valves for Highest Normal Pressure | |
| 05000364/LER-1983-014, Forwards LER 83-014/03L-0 | Forwards LER 83-014/03L-0 | |
| 05000348/LER-1983-015-03, /03L-0:on 830328,instrumentation Channel Associated W/Steam Generator 1C Flow Transmitter FT-497 Declared Inoperable Due to Erroneous High Indication.Caused by Obstruction of Low Pressure Sensing Line.Line Cleared | /03L-0:on 830328,instrumentation Channel Associated W/Steam Generator 1C Flow Transmitter FT-497 Declared Inoperable Due to Erroneous High Indication.Caused by Obstruction of Low Pressure Sensing Line.Line Cleared | |
| 05000364/LER-1983-015, Forwards LER 83-015/03L-0 | Forwards LER 83-015/03L-0 | |
| 05000364/LER-1983-015-03, /03L-0:on 830223,during FNP-2-STP-80.1 Operability Test,Diesel Generator 2B Declared Inoperable When Max Load Achievable Below Tech Spec Limit.Cause Unknown.Fuel Injector Linkage Adjusted.Load Demand Will Be Monitored | /03L-0:on 830223,during FNP-2-STP-80.1 Operability Test,Diesel Generator 2B Declared Inoperable When Max Load Achievable Below Tech Spec Limit.Cause Unknown.Fuel Injector Linkage Adjusted.Load Demand Will Be Monitored | |
| 05000348/LER-1983-016-03, /03L-0:on 830412,diesel Generator 1B Declared Inoperable Due to Start Failure Resulting in Inoperability of Train B Due to Loss of Emergency Power.Caused by Mechanical Binding of Fuel Filter Constant Vent Check Valve | /03L-0:on 830412,diesel Generator 1B Declared Inoperable Due to Start Failure Resulting in Inoperability of Train B Due to Loss of Emergency Power.Caused by Mechanical Binding of Fuel Filter Constant Vent Check Valve | |
| 05000364/LER-1983-016-03, /03L-0:on 830318,instrumentation Channel Associated W/Svc Water Discharge Flow Transmitter FT-571 Declared Inoperable When Main Control Board Recorder Indicated Low.Caused by Water Damage to Flow Transmitter | /03L-0:on 830318,instrumentation Channel Associated W/Svc Water Discharge Flow Transmitter FT-571 Declared Inoperable When Main Control Board Recorder Indicated Low.Caused by Water Damage to Flow Transmitter | |
| 05000348/LER-1983-016, Forwards LER 83-016/03L-0 | Forwards LER 83-016/03L-0 | |
| 05000364/LER-1983-016, Forwards LER 83-016/03L-0 | Forwards LER 83-016/03L-0 | |
| 05000348/LER-1983-017-03, /03L-0:on 830417,specific Gravity of Train a Svc Water Battery Bank Cells 34 & 43 Less than 1.190.Cause Undetermined.Cells Replaced & Battery Bank Returned to Svc | /03L-0:on 830417,specific Gravity of Train a Svc Water Battery Bank Cells 34 & 43 Less than 1.190.Cause Undetermined.Cells Replaced & Battery Bank Returned to Svc | |
| 05000364/LER-1983-017-03, /03L-0:on 830322,hydrogen Analyzer 1A Declared Inoperable.Caused by Failure of Recorder Balancing Motor. Motor Replaced & Hydrogen Analyzer 1A Declared Operable | /03L-0:on 830322,hydrogen Analyzer 1A Declared Inoperable.Caused by Failure of Recorder Balancing Motor. Motor Replaced & Hydrogen Analyzer 1A Declared Operable | |
| 05000348/LER-1983-018-03, /03L-0:on 830413,RCS Temp Average Fell Below Tech Spec Limit.Caused by Excessive Leakby on 1A Main Feedwater Regulating Bypass Valve.Stroke on 1A Main Feedwater Regulating Bypass Valve Adjusted & Verified | /03L-0:on 830413,RCS Temp Average Fell Below Tech Spec Limit.Caused by Excessive Leakby on 1A Main Feedwater Regulating Bypass Valve.Stroke on 1A Main Feedwater Regulating Bypass Valve Adjusted & Verified | |
| 05000364/LER-1983-018, Forwards LER 83-018/03L-0 | Forwards LER 83-018/03L-0 | |
| 05000364/LER-1983-018-03, /03L-0:on 830326,pressurizer Heater Group 2A Declared Inoperable When Heaters Failed to Energize.Caused by Discharge Breaker Closing Springs & Out of Adjustment Microswitch.Switch Adjusted & Breaker Cycled | /03L-0:on 830326,pressurizer Heater Group 2A Declared Inoperable When Heaters Failed to Energize.Caused by Discharge Breaker Closing Springs & Out of Adjustment Microswitch.Switch Adjusted & Breaker Cycled | |
| 05000364/LER-1983-019-03, /03L-0:on 830404 & 19,rod Control Sys Declared Inoperable Upon Receipt of Failure Alarm on Power Cabinet 2AC.Following Second Occurrence,Phase Control Card B2 Replaced | /03L-0:on 830404 & 19,rod Control Sys Declared Inoperable Upon Receipt of Failure Alarm on Power Cabinet 2AC.Following Second Occurrence,Phase Control Card B2 Replaced | |
