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| 05000289/LER-1980-001, Forwards LER 80-001/01T-0 | Forwards LER 80-001/01T-0 | |
| 05000289/LER-1980-001-01, /01T-0:on 800123,during Load Study,Determined That Potential Overload Condition Could Exist on 1P 480-volt Bus W/Failure of Is 480-volt Bus.Caused by Inadequate Design | /01T-0:on 800123,during Load Study,Determined That Potential Overload Condition Could Exist on 1P 480-volt Bus W/Failure of Is 480-volt Bus.Caused by Inadequate Design | |
| 05000320/LER-1980-001-99, /99x-0:on 800126,during Mode 5 operation,60 Amp Molded Case Circuit Breaker for Generator Auxiliaries Found Tripped.Caused by Defective Internal Connection on a Phase.Breaker Was Replaced | /99x-0:on 800126,during Mode 5 operation,60 Amp Molded Case Circuit Breaker for Generator Auxiliaries Found Tripped.Caused by Defective Internal Connection on a Phase.Breaker Was Replaced | |
| 05000320/LER-1980-001, Forwards LER 80-001/99x-0 | Forwards LER 80-001/99x-0 | |
| 05000289/LER-1980-002, Forwards LER 80-002/03L-0 | Forwards LER 80-002/03L-0 | |
| 05000289/LER-1980-002-03, /03L-0:on 800131,w/plant in Cold Shutdown,Annual Insp of Diesel Generator 1A(1301-8.2) Was Not Performed. Caused by Repairs in Progress on Decay Heat Loop B & Spare Parts on Order to Support Insp.Insp Will Be Performed | /03L-0:on 800131,w/plant in Cold Shutdown,Annual Insp of Diesel Generator 1A(1301-8.2) Was Not Performed. Caused by Repairs in Progress on Decay Heat Loop B & Spare Parts on Order to Support Insp.Insp Will Be Performed | |
| 05000320/LER-1980-002-99, /99X-0:on 800129,during Modes Operation,Emergency Diesel Generator DF-X-1B Failed on Manual Start Signal. Caused by Sheared Driven Pinion.Driven Pinion Replaced & Coupling Nut Will Be Staked to Prevent Recurrence | /99X-0:on 800129,during Modes Operation,Emergency Diesel Generator DF-X-1B Failed on Manual Start Signal. Caused by Sheared Driven Pinion.Driven Pinion Replaced & Coupling Nut Will Be Staked to Prevent Recurrence | |
| 05000320/LER-1980-002, Forwards LER 80-002/99x-0 | Forwards LER 80-002/99x-0 | |
| 05000289/LER-1980-003-01, /01T-0:on 800206,during Valve Mods,Valve Seat hold-down Devices for HPI Pump Discharge Check Valves (MU-V73A/73C) Found Loose.Caused by Possible Corrosion.Insp Program Continuing & Design Study Is Being Developed | /01T-0:on 800206,during Valve Mods,Valve Seat hold-down Devices for HPI Pump Discharge Check Valves (MU-V73A/73C) Found Loose.Caused by Possible Corrosion.Insp Program Continuing & Design Study Is Being Developed | |
| 05000289/LER-1980-003, Forwards LER 80-003/01T-0 | Forwards LER 80-003/01T-0 | |
| 05000320/LER-1980-003, Forwards LER 80-003/99X-0 | Forwards LER 80-003/99X-0 | |
| 05000320/LER-1980-003-99, Ler 80-003/99X-0:on 800131,during Mode 5 Operation,Emergency Diesel Generator DF-X-1B Tripped within 15 Seconds Due to Low Oil Pressure.Caused by Pneumatic Timing Unit for Alarm Delay Relay T3A Timing Out in 7 Seconds.Unit R | Ler 80-003/99X-0:on 800131,during Mode 5 Operation,Emergency Diesel Generator DF-X-1B Tripped within 15 Seconds Due to Low Oil Pressure.Caused by Pneumatic Timing Unit for Alarm Delay Relay T3A Timing Out in 7 Seconds.Unit Replaced | |
| 05000289/LER-1980-004-01, /01T-0:on 800306,during Piping Reanalysis,Errors Were Discovered in Seismic Analysis of Common Decay Heat Suction Piping.Caused by Analysis Error.Affected Piping Seismic Analysis Will Be Corrected & Hardware Changes Made | /01T-0:on 800306,during Piping Reanalysis,Errors Were Discovered in Seismic Analysis of Common Decay Heat Suction Piping.Caused by Analysis Error.Affected Piping Seismic Analysis Will Be Corrected & Hardware Changes Made | |
| 05000289/LER-1980-004, Forwards LER 80-004/01T-0 | Forwards LER 80-004/01T-0 | |
| 05000320/LER-1980-005-01, /01L-0:on 800218,during Mode 5 Operation,B Emergency Diesel Generator Was Out of Svc Which Violated 800215 Newly Issued Interim Recovery Tech Specs.Caused by Change in Tech Specs for Emergency Diesel Generators | /01L-0:on 800218,during Mode 5 Operation,B Emergency Diesel Generator Was Out of Svc Which Violated 800215 Newly Issued Interim Recovery Tech Specs.Caused by Change in Tech Specs for Emergency Diesel Generators | |
| 05000320/LER-1980-005, Forwards LER 80-005/01L-0 | Forwards LER 80-005/01L-0 | |
| 05000289/LER-1980-005-99, /99X-0:on 800321,Rosemount 1152 Pressure Transmitter in Limited Cases Exhibited Output Between 4 & 20 Ma W/Input Pressure Over or Under Calibr Range.Caused by long-term Degradation from Submergence in Water | /99X-0:on 800321,Rosemount 1152 Pressure Transmitter in Limited Cases Exhibited Output Between 4 & 20 Ma W/Input Pressure Over or Under Calibr Range.Caused by long-term Degradation from Submergence in Water | |
| 05000289/LER-1980-006, Forwards LER 80-006/01T-0 | Forwards LER 80-006/01T-0 | |
| 05000289/LER-1980-006-01, /01T-0:on 800325,during Periodic Reactor Bldg Local Leak Rate Testing,Containment Isolation Valve RB-V7 Had Excessive Leakage.Cause Suspected to Be Seat Damage. Improved Valve Placed on Order | /01T-0:on 800325,during Periodic Reactor Bldg Local Leak Rate Testing,Containment Isolation Valve RB-V7 Had Excessive Leakage.Cause Suspected to Be Seat Damage. Improved Valve Placed on Order | |
| 05000320/LER-1980-006, Forwards LER 80-006/01L-0 | Forwards LER 80-006/01L-0 | |
| 05000320/LER-1980-006-01, /01L-0:on 800218,under Interim Recovery Tech Specs,In Mode 5,boric Acid Mix Tank Inventory Was Below Requirements of Newly Implemented Tech Specs.Caused by Administrative Changeover to More Restrictive Tech Specs | /01L-0:on 800218,under Interim Recovery Tech Specs,In Mode 5,boric Acid Mix Tank Inventory Was Below Requirements of Newly Implemented Tech Specs.Caused by Administrative Changeover to More Restrictive Tech Specs | |
| 05000320/LER-1980-007, Forwards LER 80-007/01L-0 | Forwards LER 80-007/01L-0 | |
| 05000320/LER-1980-007-01, /01L-0:on 800222,w/facility in Cold Shutdown Mode, Auxiliary Bldg Exhaust Fan AH-E8C Was Removed from Svc for Maint.Caused by Transition to Interim Recovery Tech Specs Requiring Both Fan Trains to Be Operable | /01L-0:on 800222,w/facility in Cold Shutdown Mode, Auxiliary Bldg Exhaust Fan AH-E8C Was Removed from Svc for Maint.Caused by Transition to Interim Recovery Tech Specs Requiring Both Fan Trains to Be Operable | |
| 05000289/LER-1980-007, Forwards LER 80-007/01T-0 | Forwards LER 80-007/01T-0 | |
| 05000289/LER-1980-007-01, /01T-0:on 800423,results of Radiographic Exam of Piping Welds for Leak Rate Test Sys Disclosed That 8 Out of 17 Welds Did Not Meet Acceptance Stds of Power Piping Code. Caused by Lack of Preservice Exam | /01T-0:on 800423,results of Radiographic Exam of Piping Welds for Leak Rate Test Sys Disclosed That 8 Out of 17 Welds Did Not Meet Acceptance Stds of Power Piping Code. Caused by Lack of Preservice Exam | |
| 05000320/LER-1980-008, Forwards LER 80-008/01L-0 | Forwards LER 80-008/01L-0 | |
| 05000320/LER-1980-008-01, /01L-0:on 800220,during Cold Shutdown State, Nuclear Svcs River Water Pump Control Switch Discovered in pull-to-lock Position.Caused by Operator Error.Control Switch Returned to Auto Mode | /01L-0:on 800220,during Cold Shutdown State, Nuclear Svcs River Water Pump Control Switch Discovered in pull-to-lock Position.Caused by Operator Error.Control Switch Returned to Auto Mode | |
| 05000289/LER-1980-008, Forwards LER 80-008/99X-0 | Forwards LER 80-008/99X-0 | |
| 05000289/LER-1980-008-99, /99X-0:on 800430,during Annual Insp of a Emergency Diesel Generator,Bearing Insulation Determined Deteriorated. Caused by Normal Aging or Heating Bearing Lube Oil. Insulation Replaced & Lower Viscosity Oil Used | /99X-0:on 800430,during Annual Insp of a Emergency Diesel Generator,Bearing Insulation Determined Deteriorated. Caused by Normal Aging or Heating Bearing Lube Oil. Insulation Replaced & Lower Viscosity Oil Used | |
| 05000320/LER-1980-009-03, /03L-0:on 800305,during Recovery Mode Operation, W/Emergency Diesel Generator a Down for Maint,Emergency Diesel Generator B Was Tested for Operability.Generator Would Start But Could Not Be Loaded.Caused by Open Switch | /03L-0:on 800305,during Recovery Mode Operation, W/Emergency Diesel Generator a Down for Maint,Emergency Diesel Generator B Was Tested for Operability.Generator Would Start But Could Not Be Loaded.Caused by Open Switch | |
| 05000320/LER-1980-009, Forwards LER 80-009/03L-0 | Forwards LER 80-009/03L-0 | |
| 05000289/LER-1980-009, Forwards LER 80-009/03L-0 | Forwards LER 80-009/03L-0 | |
| 05000289/LER-1980-009-03, /03L-0:on 800607,reactor Bldg Tendon Surveillance Late Date Was Exceeded.Caused by Problems W/Availability of Contractor Equipment.Surveillance Continuing | /03L-0:on 800607,reactor Bldg Tendon Surveillance Late Date Was Exceeded.Caused by Problems W/Availability of Contractor Equipment.Surveillance Continuing | |
| 05000320/LER-1980-010, Forwards LER 80-010/01L-0 | Forwards LER 80-010/01L-0 | |
| 05000320/LER-1980-010-01, /01L-0:on 800314,using Outside Personnel Air Lock Entry Door,Door Seals Were Tested.Leakage Exceeded Rate Criteria.Personnel Air Lock Entry Declared Inoperable. Caused by Use of Personnel Door After One Yr of Nonuse | /01L-0:on 800314,using Outside Personnel Air Lock Entry Door,Door Seals Were Tested.Leakage Exceeded Rate Criteria.Personnel Air Lock Entry Declared Inoperable. Caused by Use of Personnel Door After One Yr of Nonuse | |
| 05000289/LER-1980-010-01, /01T-0:on 800606,licensee Received Ltr Stating FSAR Does Not Assume That Radioactive Release Paths Exist Via Main Safety Valves or Emergency Feed Pump Turbine Exhaust.Caused by Implementation of Small Break Guidelines | /01T-0:on 800606,licensee Received Ltr Stating FSAR Does Not Assume That Radioactive Release Paths Exist Via Main Safety Valves or Emergency Feed Pump Turbine Exhaust.Caused by Implementation of Small Break Guidelines | |
| 05000289/LER-1980-010, Forwards LER 80-010/01T-0 | Forwards LER 80-010/01T-0 | |
| 05000289/LER-1980-011-99, /99X-0:on 800321,Rosemount 1152 Pressure Transmitter in Limited Cases Exhibited Output Between 4 & 20 Ma W/Input Pressure Over or Under Calibr Range.Caused by long-term Degradation from Submergence in Water | /99X-0:on 800321,Rosemount 1152 Pressure Transmitter in Limited Cases Exhibited Output Between 4 & 20 Ma W/Input Pressure Over or Under Calibr Range.Caused by long-term Degradation from Submergence in Water | |
| 05000289/LER-1980-011, Forwards LER 80-011/03L-0 | Forwards LER 80-011/03L-0 | |
| 05000289/LER-1980-011-03, /03L-0:on 800610,reactor Bldg Spray Sys Compressed Air Test Exceeded Late Date.Caused by Incorrect Date Being Entered Into Surveillance Data Tracking Sys.Info Corrected. Review of Infrequent Surveillances Will Be Performed | /03L-0:on 800610,reactor Bldg Spray Sys Compressed Air Test Exceeded Late Date.Caused by Incorrect Date Being Entered Into Surveillance Data Tracking Sys.Info Corrected. Review of Infrequent Surveillances Will Be Performed | |
| 05000320/LER-1980-012-01, /01L-0:on 800413,during Recovery Mode Operation, Fuel Handling Bldg Heating,Ventilation & Air Conditioning Sys Exhaust Flow Was Below Recovery Operations Plan Requirement.Cause Undetermined.Fan Lineup Was Altered | /01L-0:on 800413,during Recovery Mode Operation, Fuel Handling Bldg Heating,Ventilation & Air Conditioning Sys Exhaust Flow Was Below Recovery Operations Plan Requirement.Cause Undetermined.Fan Lineup Was Altered | |
| 05000320/LER-1980-012, Forwards LER 80-012/01L-0 | Forwards LER 80-012/01L-0 | |
| 05000289/LER-1980-012, Forwards LER 80-012/01T-0 | Forwards LER 80-012/01T-0 | |
| 05000289/LER-1980-012-01, /01T-0:on 800627,during Review of Environ Qualification of Equipment Required to Operate During Main Steam Line Break Per IE Bulletin 79-01B,found That post- Accident Analysis Exceeded Previous Figures | /01T-0:on 800627,during Review of Environ Qualification of Equipment Required to Operate During Main Steam Line Break Per IE Bulletin 79-01B,found That post- Accident Analysis Exceeded Previous Figures | |
| 05000289/LER-1980-013-03, /03L-1:on 800715,pressurizer Code Safety Valve, RC-RV1B,lifted Below Tech Spec Limits.Cause Not Determined. Addl Testing Planned to Verify Site Heated Nitrogen Test Procedure Yields Results Comparable to Steam Pop Test | /03L-1:on 800715,pressurizer Code Safety Valve, RC-RV1B,lifted Below Tech Spec Limits.Cause Not Determined. Addl Testing Planned to Verify Site Heated Nitrogen Test Procedure Yields Results Comparable to Steam Pop Test | |
| 05000289/LER-1980-013, Forwards LER 80-013/03L-1 | Forwards LER 80-013/03L-1 | |
| 05000320/LER-1980-013, Forwards LER 80-013/01L-0 | Forwards LER 80-013/01L-0 | |
| 05000320/LER-1980-013-01, /01L-0:on 800414,in-core Thermocouple L-6 Began to Exhibit Erratic Behavior.Cause Is Unknown & May Be Impossible to Determine Given Condition of Core Relative to in-core Instrumentation.No Actions Will Be Taken Re Failure | /01L-0:on 800414,in-core Thermocouple L-6 Began to Exhibit Erratic Behavior.Cause Is Unknown & May Be Impossible to Determine Given Condition of Core Relative to in-core Instrumentation.No Actions Will Be Taken Re Failure | |
| 05000289/LER-1980-014-03, /03L-0:on 800715,during Insp,Snubber NSE-151 Had Low Fluid Level & Failed Functional Test.Possibly Caused by Leakage Past Seal Damaged During Installation.Seals Replaced & Snubber Passed Functional Test | /03L-0:on 800715,during Insp,Snubber NSE-151 Had Low Fluid Level & Failed Functional Test.Possibly Caused by Leakage Past Seal Damaged During Installation.Seals Replaced & Snubber Passed Functional Test | |
| 05000289/LER-1980-014, Forwards LER 80-014/03L-0 | Forwards LER 80-014/03L-0 | |
