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| 05000029/LER-1981-001-03, /03L-0:on 810122,low Main Coolant Flow Sys B Under Current Relays 2A & 4C Failed to Drop Out When de-energized. Caused by Residue Buildup on Relay Activation Plunger.Relay Plungers in Sys a & B Inspected & Cleaned as Require | /03L-0:on 810122,low Main Coolant Flow Sys B Under Current Relays 2A & 4C Failed to Drop Out When de-energized. Caused by Residue Buildup on Relay Activation Plunger.Relay Plungers in Sys a & B Inspected & Cleaned as Required | |
| 05000029/LER-1981-001, Forwards LER 81-001/03L-0 | Forwards LER 81-001/03L-0 | |
| 05000029/LER-1981-002, Forwards LER 81-002/03L-0 | Forwards LER 81-002/03L-0 | |
| 05000029/LER-1981-002-03, /03L-0:on 810211,two Cable Tray House Fire Detectors Gave False Alarms in Control Room.Caused by Condensation in Detector Completing Alarm Circuit.Detection Sys Replaced | /03L-0:on 810211,two Cable Tray House Fire Detectors Gave False Alarms in Control Room.Caused by Condensation in Detector Completing Alarm Circuit.Detection Sys Replaced | |
| 05000029/LER-1981-004, Forwards LER 81-004/03L-0 | Forwards LER 81-004/03L-0 | |
| 05000029/LER-1981-004-03, /03L-0:on 810416,steam Generator Narrow Range 3 Level Bistable Contacts 6 & 8 Did Not Completely Close During Testing.Caused by Formation of Oxidation Film on Contact Surfaces.Contact Surfaces Cleaned | /03L-0:on 810416,steam Generator Narrow Range 3 Level Bistable Contacts 6 & 8 Did Not Completely Close During Testing.Caused by Formation of Oxidation Film on Contact Surfaces.Contact Surfaces Cleaned | |
| 05000029/LER-1981-005, Forwards LER 81-005/03L-0 | Forwards LER 81-005/03L-0 | |
| 05000029/LER-1981-005-03, /03L-0:on 810502,during Plant Shutdown for Refueling & While Inserting Shutdown Rods,Rod 17 Became Inoperable & Would Not Scram Upon Loss of Stationary Gripper Coil Voltage.Caused by Bowed Zircaloy Control Rod Follower | /03L-0:on 810502,during Plant Shutdown for Refueling & While Inserting Shutdown Rods,Rod 17 Became Inoperable & Would Not Scram Upon Loss of Stationary Gripper Coil Voltage.Caused by Bowed Zircaloy Control Rod Follower | |
| 05000029/LER-1981-006, Forwards LER 81-006/03L-0 | Forwards LER 81-006/03L-0 | |
| 05000029/LER-1981-006-03, /03L-0:on 810502,during Testing,Steam Generator 1 Low Set Safety Valve MS-SV-409E Setpoint Found Low.Cause Unknown.Valve Readjusted | /03L-0:on 810502,during Testing,Steam Generator 1 Low Set Safety Valve MS-SV-409E Setpoint Found Low.Cause Unknown.Valve Readjusted | |
| 05000029/LER-1981-007, Forwards LER 81-007/03L-0 | Forwards LER 81-007/03L-0 | |
| 05000029/LER-1981-007-03, /03L-0:on 810521,fire Protection Carbon Dioxide Sys Manhole 3 Was Taken Out of Svc.Caused by Need to Enter Manhole to Perform Upgrading of Feedwater Sys Combined W/ Toxicity of Carbon Dioxide | /03L-0:on 810521,fire Protection Carbon Dioxide Sys Manhole 3 Was Taken Out of Svc.Caused by Need to Enter Manhole to Perform Upgrading of Feedwater Sys Combined W/ Toxicity of Carbon Dioxide | |
| 05000029/LER-1981-008, Forwards LER 81-008/01T-0 | Forwards LER 81-008/01T-0 | |
| 05000029/LER-1981-008-01, /01T-0:on 810527,mechanical Damage to Fuel Cladding Discovered During Visual Exam of Fuel Assemblies for Core XIV-XV Refueling.Caused by Fretting Damage to Clad Due to Pin Vibration.Pins to Be Replaced W/Dummy Pins | /01T-0:on 810527,mechanical Damage to Fuel Cladding Discovered During Visual Exam of Fuel Assemblies for Core XIV-XV Refueling.Caused by Fretting Damage to Clad Due to Pin Vibration.Pins to Be Replaced W/Dummy Pins | |
| 05000029/LER-1981-010, Forwards LER 81-010/03L-0 | Forwards LER 81-010/03L-0 | |
| 05000029/LER-1981-010-03, /03L-0:on 810603,while in Mode 6,primary Vent Stack Gaseous Radiation Monitoring Channel Failure Alarm Was Received in Control Room.Caused by Natural End of Life of Temp Bypass Valve in Compressed Air Dryer.Dryer Replaced | /03L-0:on 810603,while in Mode 6,primary Vent Stack Gaseous Radiation Monitoring Channel Failure Alarm Was Received in Control Room.Caused by Natural End of Life of Temp Bypass Valve in Compressed Air Dryer.Dryer Replaced | |
| 05000029/LER-1981-011-99, /99T-0:on 810611,during Eddy Current Exam of Steam Generator 2,tubes K-41 & K-42 Were Found Degraded.Cause Unknown.Tubes Plugged | /99T-0:on 810611,during Eddy Current Exam of Steam Generator 2,tubes K-41 & K-42 Were Found Degraded.Cause Unknown.Tubes Plugged | |
| 05000029/LER-1981-011, Forwards LER 81-011/99T-0 | Forwards LER 81-011/99T-0 | |
| 05000029/LER-1981-012, Forwards LER 81-012/99X-0 | Forwards LER 81-012/99X-0 | |
| 05000029/LER-1981-012-99, /99X-0:on 810602,during Routine Surveillance, Discovered Continuous Environ Air Sampler Pumps 1 & 7 Not Running.Caused by Loss of Power to Monitor Pump Drive Motor When Local Util Performed Maint on Feeder Line | /99X-0:on 810602,during Routine Surveillance, Discovered Continuous Environ Air Sampler Pumps 1 & 7 Not Running.Caused by Loss of Power to Monitor Pump Drive Motor When Local Util Performed Maint on Feeder Line | |
| 05000029/LER-1981-013-03, /03L-0:on 810616,O Ring Seals on Penetrations Failed to Hold Pressure.Caused by Loose Bolting on Penetration Flanges.Bolts Retightened & Penetrations Retested | /03L-0:on 810616,O Ring Seals on Penetrations Failed to Hold Pressure.Caused by Loose Bolting on Penetration Flanges.Bolts Retightened & Penetrations Retested | |
| 05000029/LER-1981-013, Forwards LER 81-013/03L-0 | Forwards LER 81-013/03L-0 | |
| 05000029/LER-1981-014, Forwards LER 81-014/03L-0 | Forwards LER 81-014/03L-0 | |
| 05000029/LER-1981-014-03, /03L-0:on 810617,trip Setpoint Found to Be Below Tech Spec Limit During Low Steam Generator Water Level Channel Calibr.Caused by Calibr Drift of Transmitter. Transmitter Recalibr | /03L-0:on 810617,trip Setpoint Found to Be Below Tech Spec Limit During Low Steam Generator Water Level Channel Calibr.Caused by Calibr Drift of Transmitter. Transmitter Recalibr | |
| 05000029/LER-1981-015-03, /03L-0:on 810627,during Refueling Outage, Pressurizer Code Safety Valves SV-181 & SV-182 Found to Be Set Below Tech Spec Limit.Caused by Setpoint Drift.Setpoint Pressure Readjusted | /03L-0:on 810627,during Refueling Outage, Pressurizer Code Safety Valves SV-181 & SV-182 Found to Be Set Below Tech Spec Limit.Caused by Setpoint Drift.Setpoint Pressure Readjusted | |
| 05000029/LER-1981-015, Forwards LER 81-015/03L-0 | Forwards LER 81-015/03L-0 | |
| 05000029/LER-1981-016-03, Diesel Generator Overheated & Failed to Meet Tech Spec Limits.Caused by Radiator Failure to Cool Diesel Engine.New Core Installed in Radiator & Satisfactorily Retested | Diesel Generator Overheated & Failed to Meet Tech Spec Limits.Caused by Radiator Failure to Cool Diesel Engine.New Core Installed in Radiator & Satisfactorily Retested | |
| 05000029/LER-1981-016, Forwards Updated LER 81-016/03L-1 | Forwards Updated LER 81-016/03L-1 | |
| 05000029/LER-1981-017, Forwards LER 81-017/03L-0 | Forwards LER 81-017/03L-0 | |
| 05000029/LER-1981-017-03, /03L-0:on 810708,during Refueling,Boric Acid Mix Tank Concentration Found Below Tech Spec.Caused by Improper Venting of Boric Acid Transfer Pump While Connected to Shield Tank Cavity Recovery Sys.Operator Reinstructed | /03L-0:on 810708,during Refueling,Boric Acid Mix Tank Concentration Found Below Tech Spec.Caused by Improper Venting of Boric Acid Transfer Pump While Connected to Shield Tank Cavity Recovery Sys.Operator Reinstructed | |
| 05000029/LER-1981-018, Forwards LER 81-018/03L-0 | Forwards LER 81-018/03L-0 | |
| 05000029/LER-1981-018-03, /03L-0:on 810710,during Testing,Trip Valve (VD-TV-202) Leakage Exceeded Tech Spec.Caused by Buildup of Matl within Valve Body Preventing Seal Between Gate & Seat. Valve Cleaned.Actuator & Stem Replaced | /03L-0:on 810710,during Testing,Trip Valve (VD-TV-202) Leakage Exceeded Tech Spec.Caused by Buildup of Matl within Valve Body Preventing Seal Between Gate & Seat. Valve Cleaned.Actuator & Stem Replaced | |
| 05000029/LER-1981-019, Forwards LER 81-019/03L-0 | Forwards LER 81-019/03L-0 | |
| 05000029/LER-1981-019-03, /03L-0:on 810717,PR-SOV-90 Was Removed from Svc During Refueling Outage to Allow Piping Mod to Newly Installed Reactor Head Vent Sys.Mod Necessary Due to Design Deficiency Found During Stress Analysis | /03L-0:on 810717,PR-SOV-90 Was Removed from Svc During Refueling Outage to Allow Piping Mod to Newly Installed Reactor Head Vent Sys.Mod Necessary Due to Design Deficiency Found During Stress Analysis | |
| 05000029/LER-1981-020-03, /03L-0:on 810723,during Refueling Outage in Mode 5,setpoint of TDR1 & TDR2 Found to Be Out of Tech Spec Limit.Caused by Setpoint Drift.Setpoint Adjusted & Relays (Model SSC12PCA) Retested Satisfactorily | /03L-0:on 810723,during Refueling Outage in Mode 5,setpoint of TDR1 & TDR2 Found to Be Out of Tech Spec Limit.Caused by Setpoint Drift.Setpoint Adjusted & Relays (Model SSC12PCA) Retested Satisfactorily | |
| 05000029/LER-1981-020, Forwards LER 81-020/03L-0 | Forwards LER 81-020/03L-0 | |
| 05000029/LER-1981-021, Has Been Canceled | Has Been Canceled | |
| 05000029/LER-1981-022-03, /03L-0:on 810803,primary Vent Stack Gaseous Radiation Monitor Failure Alarm Received.Moisture Identified in Detector Housing Rendering Channel Inoperable.Detector Removed,Dried & Returned to Svc | /03L-0:on 810803,primary Vent Stack Gaseous Radiation Monitor Failure Alarm Received.Moisture Identified in Detector Housing Rendering Channel Inoperable.Detector Removed,Dried & Returned to Svc | |
| 05000029/LER-1981-022, Forwards LER 81-022/03L-0 | Forwards LER 81-022/03L-0 | |
| 05000029/LER-1981-023, Forwards LER 81-023/03L-0 | Forwards LER 81-023/03L-0 | |
| 05000029/LER-1981-023-03, /03L-0:on 810811,surveillance Requirements Were Not Met for Health Physics Surveillance Schedule.Caused by Failure of Personnel to Insure Time Limit Was Met.Personnel Reminded of Responsibilities | /03L-0:on 810811,surveillance Requirements Were Not Met for Health Physics Surveillance Schedule.Caused by Failure of Personnel to Insure Time Limit Was Met.Personnel Reminded of Responsibilities | |
| 05000029/LER-1981-024, Forwards LER 81-024/03L-0 | Forwards LER 81-024/03L-0 | |
| 05000029/LER-1981-024-03, /03L-0:on 810813,valve EBF-MOV-557 Failed to Operate Electrically.Caused by Irregularities in Valve Operator Housing Allowing Water in & Forming Rust Which Prevented Proper Torque Switch Operation | /03L-0:on 810813,valve EBF-MOV-557 Failed to Operate Electrically.Caused by Irregularities in Valve Operator Housing Allowing Water in & Forming Rust Which Prevented Proper Torque Switch Operation | |
| 05000029/LER-1981-025, Forwards LER 81-025/03L-0 | Forwards LER 81-025/03L-0 | |
| 05000029/LER-1981-025-03, /03L-0:on 810820,primary Vent Stack Gaseous & Particulate Radiation Monitor Ratemeters Failed.Caused by Moisture in Detector Due to Air Dryer Coolant Leak.Dryer Replaced.Review Continuing | /03L-0:on 810820,primary Vent Stack Gaseous & Particulate Radiation Monitor Ratemeters Failed.Caused by Moisture in Detector Due to Air Dryer Coolant Leak.Dryer Replaced.Review Continuing | |
| 05000029/LER-1981-026, Forwards LER 81-026/03L-0 | Forwards LER 81-026/03L-0 | |
| 05000029/LER-1981-026-03, /03L-0:on 810902,primary Vent Stack Gaseous Radiation Monitoring Ratemeter Failed High.Caused by Failed Electronic Component in Detector.Detector Replaced | /03L-0:on 810902,primary Vent Stack Gaseous Radiation Monitoring Ratemeter Failed High.Caused by Failed Electronic Component in Detector.Detector Replaced | |
| 05000029/LER-1981-027-03, /03L-0:on 810915,while in Mode 1,primary Vent Stack Iodine Radiation Monitor Ratemeter Failed.Caused by Moisture in Detector Due to Failure of Air Dryer to Remove Moisture.Detector Dried & Drier Replaced | /03L-0:on 810915,while in Mode 1,primary Vent Stack Iodine Radiation Monitor Ratemeter Failed.Caused by Moisture in Detector Due to Failure of Air Dryer to Remove Moisture.Detector Dried & Drier Replaced | |
| 05000029/LER-1981-027, Forwards LER 81-027/03L-0 | Forwards LER 81-027/03L-0 | |
| 05000029/LER-1981-028-03, /03L-0:on 811015,battery Room 1 Halon Bottle Accidentally Discharged.Caused by Check Valve Assembly Turning at Bottle Instead of Solenoid Nut from Check Valve Fitting During Removal | /03L-0:on 811015,battery Room 1 Halon Bottle Accidentally Discharged.Caused by Check Valve Assembly Turning at Bottle Instead of Solenoid Nut from Check Valve Fitting During Removal | |