Pages that link to "05000388/LER-2015-001"
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The following pages link to 05000388/LER-2015-001:
Displayed 50 items.
- 05000388/LER-1986-003, :on 860124,Tech Spec Motherhood Clause Entered Due to Malfunctioning Which Provides ECCS Initiation Signals.Caused by Broken Adjustment Locking Screw Replaced (← links)
- 05000388/LER-1986-001-01, :on 860121,during Startup,Reactor Scrammed When Vessel Water Level Dropped to Plus 13 Inches.Caused by Operator Failing to Notice Turbine Bypass Valves Opened. Procedures Revised.Alarms Will Be Installed (← links)
- 05000388/LER-1985-012, :on 850316,power Supply to Standby Gas Treatment Sys Exhaust Vent Process Radiation Monitor Momentarily Shortened When Component Removed During Calibr. Caused by Malfunctioning Dampers (← links)
- 05000388/LER-1986-010-01, :on 860717,reactor Manually Shut Down Due to Excessive Unidentified Drywell Leakage.Caused by Leaking RHR Loop B Injection Testable Check Valve HV-251-F050B.Valve Repacked & Returned to Svc (← links)
- 05000388/LER-1986-008-01, :on 860619,HPCI Sys Failed to Attain Required Flow Rate & Declared Inoperable.Caused by Broken Control Valve.Valve Repaired & Procedure SO-252-002 Reperformed.W/ (← links)
- 05000388/LER-1986-007-01, :on 860609,as-found Leakage Exceeded Tech Spec 3.6.1.2 Criteria During Integrated Leak Rate Test.Cause Unstated.Isolation Valves Reworked (← links)
- 05000388/LER-1985-025-01, :on 851005,phase-to-ground Fault Occurred on 500 Kv Transmission Lines Due to Lightning Strike.Failure of Auxiliary Relay Resulted in Isolation of Generator.Caused by Stuck Relay.Relay Repaired (← links)
- 05000388/LER-1986-006-01, :on 860413,inboard Containment Isolation Valve Closed & RWCU Pumps Tripped.Caused by Isolation of RWCU During High Differential Flow as RWCU Filter/Demineralizer Being Returned to Svc.No Action Planned (← links)
- 05000388/LER-1986-004-01, :on 860115,reactor Manually Scrammed Due to Overheating of Phase Main Transformer B.Caused by Improper Alignment of Knife Switches to Transformer Cooling Loops. Knife Switches Corrected (← links)
- 05000388/LER-1986-002, :on 860122,HPCI Sys Shut Down During Quarterly Flow Surveillance Test.Caused by Leak of Approx 5 Gpm in Pressure Control Valve 2F035 Due to Tear in Main Diaphragm. Diaphragm Replaced.Test Completed (← links)
- 05000388/LER-1985-023-01, :on 850805,unit Scrammed Due to Turbine Control Valve Fast Closure Trip.Caused by Technician Error.Rcic Manually Initiated to Maintain Vessel Level.Special Rept to Be Filed Per Tech Spec 4.7.3d (← links)
- 05000388/LER-1984-022, :on 841010,HPCI Sys Declared Inoperable Due to High Vibration Identified During Maint Check.Hpci Booster & Main Pumps & Turbine Realigned & Rerun.Eccs & RCIC Sys Declared Inoperable on 841013 for Routine Test (← links)
- 05000388/LER-1985-024-01, :on 850807,reactor Water Cleanup Containment (RWCU) Inboard Isolation Valve Closed on High Sys Flow Signal.Caused by Fast Opening of Filter/Demineralizer Inlet Valve.Rwcu Operating Procedure Revised (← links)
- 05000388/LER-1985-022-01, :on 850703,instrumentation & Controls Technician Inadvertently Connected Test Equipment to Electronics Module for Reactor Water Cleanup Sys.Technician Counseled.Rear Input Wires Labeled (← links)
- 05000388/LER-1985-021-01, :on 850630,neutral Overvoltage Occurred in Main Generator,Causing Primary Lockout.Caused by Failure of Phase C Main Transformer Low Voltage Bushing.Bushing Replaced W/Spare Component (← links)
- 05000388/LER-1985-016-01, :on 850427,water Hammer Caused Reactor Water Level Transient.Caused by Rapid Filling of Partially Drained RHR Piping from Reactor Vessel.Operating Procedure for RHR Being Revised (← links)
- 05000388/LER-1985-015-01, :on 850421,spray Pond Bypass Valve HV-01222A Did Not Automatically Open When Emergency Svc Water Pump a Started.Caused by Two Open Sliding States Link Terminal Blocks in Relay Panel.Links Evaluated (← links)
- 05000388/LER-1985-020-01, :on 850531,lightning Strike Caused Voltage Transient.Caused by Loss of Motive or Control Power. Malfunctioning Damper Actuator Replaced (← links)
- 05000388/LER-1985-017-01, :on 850530,drywell Sump Inleakage of About 10 Gpm Caused Reactor Shutdown.Shutdown Completed on 850531. Caused by Severe Packing Leak in Reactor Recirculation Pump Discharge Bypass Valve A.Valve Repaired (← links)
- 05000388/LER-1985-019-01, :on 850524,Limiting Condition for Operation 3.0.3, Motherhood Clause, Declared & Standby Gas Treatment Sys Suction Ductwork Access Doors Opened.Entry Required to Perform Fire Damper Surveillance (← links)
- 05000388/LER-1985-018-01, :on 850529,three ESF Actuations Occurred Due to Tripping of Reactor Protection Sys Power Supply Breaker W/Unit at 100% Power.First Two Events Caused by Loose Connection.New Breaker Installed (← links)
- 05000388/LER-1985-014, :on 850417,RCIC Sys Inboard Steam Supply Valve Isolated on Equipment Area High Temp.Caused by Malfunction of Temp Indicating Switch E51-N600B.Switch Replaced on 850418 & Isolation Signal Cleared (← links)
- 05000388/LER-1985-013, :on 850327,standby Liquid Control Pump a Failed 92-day Flow Verification Surveillance Test.Caused by Faulty Suction & Discharge Valves Internal to Positive Displacement Pump.Repairs Completed (← links)
- 05000388/LER-1985-011, :on 850310,damper in Standby Gas Treatment Sys Train a Malfunctioned.Caused by Damaged Damper Actuator. Actuator Replaced & Damper Operation Verified to Be Correct on 850312 (← links)
- 05000388/LER-1984-015, :on 840802,reactor Water Cleanup Sys Isolated on High Flow.Caused by Instrument Drift.Switch PDIS-G33-2NO44A Recalibr (← links)
- 05000388/LER-1984-023-01, :on 841206,fire Watch Discontinued Following Completion of One of Two Independent Work Activities.Caused by Failure to Ref Two Work Activities in Fire Watch Log. Evaluation Being Conducted (← links)
- 05000388/LER-1984-027, :on 841026,fire Watch Not Provided for Inoperable Fire Barriers Per Tech Specs.Caused by Administrative Errors.Affected Fire Barriers Restored. Incident Discussed W/Unit Supervisor (← links)
- 05000388/LER-1984-010, :on 840627,pressure Drop Occurred on HPCI Pump Suction Piping During Heatup Plateau Review.Caused by Blockage in Startup Strainer.Strainers Removed (← links)
- 05000388/LER-1985-007, :on 850129,RHR Sys Shutdown Cooling Suction Valve Closed Unexpectedly.Cause Not Stated.Pressure Switch Checked & Shutdown Cooling Established.Switch May Be Replaced Pending Evaluation (← links)
- 05000388/LER-1984-021-01, :on 840930,reactor Scrammed Due to Turbine Trip on Moisture Separator B Drain Tank High Level.Task Team Established to Evaluate Drain Tank Level Control Sys (← links)
- 05000388/LER-1984-020-01, :on 840929,unplanned ESF Actuation Occurred During Calibr of Differential Pressure Instrument Resulting in Isolation of Reactor Water Cleanup Sys.Caused by Closure of Containment Isolation Valve (← links)
- 05000388/LER-1985-003, :on 850119,reactor Scrammed on Turbine Control Valve Fast Closure.Caused by Main Turbine Trip on High Vibration During Turbine Control Valve Testing.Vibration Reduced After Rebalancing (← links)
- 05000388/LER-1985-005, :on 850119,following Reactor Scram Due to Turbine High Vibration,Suppression Chamber Vacuum Breaker Surveillance Test Completed After Tech Spec Time Limit. Caused by Cognitive Error (← links)
- 05000388/LER-1985-001, :on 850112,HPCI Turbine Failed to Trip During Hot Functional Test HF-252-011.Caused by Broken Stop Valve Actuator Shaft.Actuator Shaft Replaced (← links)
- 05000388/LER-1985-002, :on 850112,nonlicensed,nonutility Electrician Caused Reactor Protection Sys Motor Generator M-G Set to Trip When Wrench Came in Contact W/Energized Conductor. Caused by Failure to Isolate Equipment (← links)
- 05000388/LER-1984-021, :on 840930,reactor Scrammed Due to Turbine Trip on Moisture Separator B Drain Tank High Level During Performance of Startup Test to Determine Max Feedwater Pump Runout Capabilities.Check Valve Installed (← links)
- 05000388/LER-1984-026-01, :on 841029,during Installation of Mod,Open Penetration Found in Fire Barrier.Caused by Penetration Not Being Sealed During Const.Surveillance Procedure Revised to Clarify Insp Criteria (← links)
- 05000388/LER-1984-023, :on 841206,fire Watch Required for Two Independent Work Activities.Caused by Fire Watch Log Not Referencing Activities.Addl Guidelines for Tracking Fire Protection Activities & Separate Log Developed (← links)
- 05000388/LER-1985-010, :on 850223,ESF Actuation Occurred.Caused by Tripped Reactor Protection Sys Power Supply Breaker.Breaker Reset & Affected Sys Restored (← links)
- 05000388/LER-1985-009, :on 850212,setpoints for Three Reactor Water Level Switches Found to Be Outside Acceptance Criteria During Performance of Scheduled Surveillance.Caused by Instrument Drift.Instruments Recalibr (← links)
- 05000388/LER-1985-008, :on 850216,logic Power Lost to HPCI & Loop B of Core Spray.Caused by Broken Lug on Negative Terminal.Lug Replaced.Power Restored (← links)
- 05000388/LER-1984-024-01, :on 841016,total Amount of Boron in Sodium Pentaborate Solution of Standby Liquid Control Sys Found Below Tech Spec Requirements.Chemicals Added & Proper Boration Attained.Surveillance Test Revised (← links)
- 05000388/LER-1985-006, :on 850129,w/unit in Hot Shutdown,Rhr Sys Shutdown Cooling Suction Inboard Isolation Valve Closed Unexpectedly.Possibly Caused by Faulty Pressure Switch. Switch May Be Replaced Pending Evaluation (← links)
- 05000388/LER-1985-007-01, :on 850130,during Purge of Containment,One Train of Standby Gas Treatment Sys Became Inoperable.Caused by Annunciation of Standby Gas Treatment Sys B Heater Failure Alarm.Event Reviewed W/Operators (← links)
- 05000388/LER-1984-022-01, :on 841010,HPCI Sys Declared Inoperable Due to High Vibration Detected During Maint Check of HPCI Bearings. Caused by Misalignment Between Booster Pump Reduction Gear Unit & Main Pump & Turbine.Pumps Realigned (← links)
- 05000388/LER-2020-001, Manual Reactor Scram Due to Rising Main Condenser Backpressure (← links)
- 05000388/LER-1984-016-01, :on 840809,31-day Surveillance Test Completed Late.Caused by Verbal Miscommunication Between Instrumentation & Controls (I&C) Assistant Foreman & Scheduler.I&C Shop Instruction Implemented (← links)
- 05000388/LER-1984-015-01, :on 840802,reactor Water Cleanup Sys Isolated on High Flow.No Pipe Break Identified.Caused by PDIS-G33-2N044A Out of Calibr Due to Instrument Drift. Instrument Recalibr & Returned to Svc (← links)
- 05000388/LER-1984-014-01, :on 840723,reactor Water Cleanup Inlet Outboard Board Isolation Valve (2F004) Closed Due to High Temp in Filter Demineralizer Room.Caused by Problems W/Reactor Bldg Chilled Water Sys (← links)
- 05000388/LER-1984-013-01, :on 840726,during Scram Due to Turbine Control Valve Fast Closure & Deenergization of 13.8 Kv & 14.16 Kv Buses,Control Rods Did Not Fully Insert.Caused by Failure of Diesel Generators to Start Automatically (← links)