Pages that link to "NRC Form 50"
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The following pages link to NRC Form 50:
Displayed 28 items.
- ML20245C496 (← links)
- DT-22-15, Management Directive 10.6, Use of Consultants and Experts (← links)
- ML20059G826 (← links)
- ML20059G806 (← links)
- ML20059G796 (← links)
- ML20059G781 (← links)
- ML20058A364 (← links)
- 05000368/LER-1984-029, :on 841129,fire Door self-closing Mechanism Found Out of Adjustment.Caused by High Usage,Oil Cylinders & Worn seals.Self-closing Mechanism Replaced (← links)
- 05000368/LER-1991-010, :on 910407,containment Purge Isolation Valve Declared Inoperable Due Excessive Leakage.Caused by Inadequate Design Info from Valve Mfg.Valve Will Be Replaced or Rotated,Per Evaluation of Feasibility (← links)
- ML19351E734 (← links)
- 05000280/LER-1993-003-01, :on 930213,review Concluded That Containment Air Particulate & Gaseous RMs Rendered Inoperable When Containment Air Recirculation Sys Shutdown,Violating Ts. Operations Surveillance Procedures Revised (← links)
- 05000281/LER-1992-008-03, :on 921215,RCS Leak Identified Near Low Pressure Letdown Flow Transmitter.Caused by Failure of Swagelock Fitting on Flow Transmitter.Root Cause Evaluation in Progress & Fitting & Tube Replaced (← links)
- 05000280/LER-1992-002, On 920106,4160 Volt Transfer Buses D,E & F UV Relay Trip Setpoints Set Below TS Limits.Caused by Calibr Process Error.Relays Recalibr & Set to More Conservative Values than Required (← links)
- 05000281/LER-1991-009-02, :on 910903,determined That Check Valve 2-RH-47 Not Full Flow Tested During Cycle 10 Refueling Outage.Caused by Personnel/Procedural Error.Procedure Changed & Testing Performed on 910908 (← links)
- 05000280/LER-1991-011-01, :on 910406,simulated Design Basis Accident Conditions Resulted in Failure of Pumps to Develop Design Flow & Discharge Pressure.Caused by Inadequate Design. Permanent Mod of Radiation Sys Evaluated (← links)
- 05000281/LER-1989-010-02, :on 890919,automatic Reactor Trip Generated as Result of lo-lo Steam Generator Level.Caused by Operator Raising Governor Valve Position Limiter More Rapidly than Desired.Lesson Learned Given to Personnel (← links)
- 05000280/LER-1989-002-01, :on 890108 & 27,leak Tests Performed on Unit 1 & Unit 2 Excore Flux Monitoring Sys Cables Respectively. Evaluation of Both Units Cables Concluded Replacement Necessary.Cables for Unit 1 Flux Monitor Were Replaced (← links)
- 05000281/LER-1988-025-02, :on 881208,determined That Power Supplies for Two Safety Injection Valve Operators Reversed.Caused by Error During Initial Plant Const.Engineering Work Request Issued to Correct as-found Conditions (← links)
- 05000281/LER-1988-022-01, :on 880910,reactor Trip by Turbine Trip Occurred While Attempting to Maintain Turbine at Synchronous Speed.Caused by Inadequate Procedure & Faulty Valve Position Indication.Testing to Be Performed (← links)
- 05000280/LER-1987-020, :on 870813 & 21,main Control Room Ventilation Isolated.Caused by High Voltage Output on Chlorine Gas Detector CLA-VS-100A.Ventilation Sys Realigned & Verified No Chlorine Gas in Room (← links)
- 05000311/LER-1993-007-01, :on 930528,all Four Rods of Control Rod Bank C, Group 1 Unexpectedly Dropped Fully Into Reactor Core.Caused by Degraded Signal from Regulation Board.Card Replaced & Firing Circuit Satisfactorily Tested (← links)
- 05000311/LER-1993-002-01, :on 930128,pumps Tripped on Low Suction Pressure.Caused by Equipment Failure.Loose SGFP Master Controller Test Jack Repaired & Other Jacks in SGFP Speed Control Loop Inspected & Repaired as Required (← links)
- 05000311/LER-1993-003-01, :on 930131,level Indicator of 21 Bast Declared Inoperable Due to False High Level Indications.Caused by Design Construction/Installation.Design Change Will Be Developed to Reduce Bast Boron Concentration (← links)
- 05000272/LER-1992-017, :on 920730,main Steam Line Isolation Occurred Concurrent W/High Steam Line Flow Signal During Heatup. Caused by Design,Mfg & Const Installation Deficiency.Design Mods to Correct Flow Sensing Line Underway (← links)
- 05000311/LER-1992-011-01, :on 920717 & 18,TS 3.0.3 Entered When Analog Rod Position Indications for Control Rods Indicated Greater than Plus or Minus 12 Step Deviation from Group Demand Counter.Caused by Sys Design.Sys Evaluated (← links)
- 05000272/LER-1991-029, :on 910907,control Room Low Flow Trouble Alarm for Containment Radiation Monitoring Sys Pump Received Indicating Pump Seizure.Caused by Inadequate Sys Design. Pump Replaced & Event Reviewed (← links)
- 05000272/LER-1991-015, :on 910329,plant Vent Radioactive Noble Gas Monitor 1R41C Channel Failed Low,Resulting in Containment Purge Isolation Signal.Caused by Failure of Scalar Test Jacket.Test Jacket Replaced (← links)
- 05000272/LER-1991-016, :on 910331,Tech Spec Action Statement 3.11.2.5 Entered Due to Oxygen Concentration of 2.3% by Vol in Waste Gas Decay Tank 13.Caused by Failure of 1R41C Channel.Channel Repaired & Procedures Mods to Be Assessed (← links)