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This page provides a simple browsing interface for finding entities described by a property and a named value. Other available search interfaces include the page property search, and the ask query builder.

List of results

• ML20085C088  + (ML20085C088)
• 05000353/LER-1991-012, :on 910627,two Floor Drain Plugs Associated W/Reactor Enclosure (Re) Secondary Containment (Sc) Removed, Rendering Re Sc Inoperable.Caused by Personnel Error. Corrective Actions Included Counseling  + (ML20085C091)
• 05000325/LER-1991-020, :on 910725,HPCI Steam Supply Line Being Placed in Standby Lineup.Caused by Possibility of Small Pressure Switches.Hpci Low Pressure Isolation Switches Immediately Reset  + (ML20085C092)
• 05000327/LER-1991-018, :on 910812,fire Barriers Discovered Not to Comply W/Underwriters Lab Configurations Resulting in Deterioration of Matl.Caused by Listed Inadequacies.Fire Barriers Inspected  + (ML20085C095)
• 05000369/LER-1991-011-02, :on 910724,fuel Discovered Moved in Fuel Pool While Fuel Handling Exhaust Sys Inoperable.Caused by Inappropriate Actions.Personnel Involved Reviewed Event  + (ML20085C097)
• 05000334/LER-1991-024, :on 910727,generation of Feedwater Isolation & Letdown Isolation Signals Occurred.Caused by Procedural Deficiencies.Loop Calibration Procedure Revised & Maint Procedures Reviewed  + (ML20085C098)
• 05000354/LER-1990-029, :on 901126,ECCS Actuation Occurred Re Electrical Spike on Channel a Logic Results in Autostart of Channel A.Caused by Inadequate Design.Nuclear Training Dept Incorporated Review of Event  + (ML20085C100)
• 05000354/LER-1991-016-01, :on 910724,ESF Actuation Occurred Re RCIC Sys Isolation.Caused by Instrument Failure.Failed Card in Numac Monitor Replaced & Sys Returned to Operable Status  + (ML20085C109)
• 05000333/LER-1991-012, :on 910721,south Cable Tunnel to Relay Room Fire Door Found Blocked Open During Shutdown for Maint. Caused by Human Error.South Cable Door Closed & Addl Fire Watch Posted  + (ML20085C114)
• 05000499/LER-1991-009-02, :on 910707,ESF Actuation Occurred.Caused by Failed Light Emitting Diode.Engineering Review Conducted Determining Generic Problem Exists W/Leds Used in Sequencer Circuits  + (ML20085C136)
• 05000445/LER-1991-021, :on 910728,ESF Actuation Occurred.Caused by Lightning Strike.Design Mod to Switchyard to Enhance Reliability of Offsite Power Sources Partially Completed  + (ML20085C138)
• ML20085C139  + (ML20085C139)
• ML20085C144  + (ML20085C144)
• ML20085C148  + (ML20085C148)
• ML20085C152  + (ML20085C152)
• 05000259/LER-1991-008-02, :on 910724,fire Wrap Discovered Removed During Unit 3 Integrated Walkdown Activities W/O Establishing Fire Watch.Caused by Mgt Failure.Duties,Responsibilities & Accountabilities for Field Svcs Developed  + (ML20085C157)
• 05000325/LER-1991-019, :on 910723,maint Surveillance Test Procedures Found to Be Revised Incorrectly.Caused by Lack of Formal Process for Ensuring That Procedure Was Electronically Altered Via Word Processing.Procedure Revised  + (ML20085C158)
• 05000265/LER-1991-008-04, :on 910723,outboard Recirculation Sample Valve AO-2-220-45 Closed W/No Apparent Signal.Caused by Defective Connections in Control Circuitry.Corrective Actions Included Fuse Verfication & Insp of All Terminations  + (ML20085C159)
• 05000413/LER-1991-010, :on 910526,feedwater Isolation Occurred.Cause for Event Unknown.Facility Will Evaluate Need to Replace Westinghouse W-2 Cell Switch Which Had Sensitivity Problems in Past  + (ML20085C163)
• 05000266/LER-1991-009, :on 910727,runback of Unit 1 Turbine Generator Discovered Initiated.Cause Unknown.Flux Maps Monitored for Quadrant Power Tilt & Core Flux Mapping Initiated  + (ML20085C165)
• ML20085C166  + (ML20085C166)
• 05000336/LER-1991-006, :on 910330,Surveillance Requirement Section 4.0.5 Re Inservice Insp of ASME Code Class 1,2 & 3 Components Not Performed within 92 Day Interval.Caused by Inadequate Planning.Schedule Enhanced  + (ML20085C170)
• ML20085C172  + (ML20085C172)
• L-91-231, Forwards Rev 12 to Training & Qualification Plan, Consisting of Summary of Changes & Marked Up Copy of Revised Pages & Direction for Incorporating Rev Into Plan  + (ML20085C176)
• ML20085C180  + (ML20085C180)

• ML20085C187  + (ML20085C187)

• ML20085C198  + (ML20085C198)
• ML20085C199  + (ML20085C199)
• ML20085C204  + (ML20085C204)
• ML20085C206  + (ML20085C206)
• ML20085C208  + (ML20085C208)
• 05000277/LER-1991-025, :on 910728,isolation of HPCI Sys Occurred During Performance of Surveillance Test,Resulting in ESF Actuation.Caused by Failure to Follow Procedures & Procedural Weaknesses.Procedures Revised  + (ML20085C213)
• 05000277/LER-1991-026, :on 910727,actuations Occurred on Primary Containment Isolation Sys When 4 Kv Emergency Bus Transferred to Startup Feed.Caused by Phase B Arcing. Isolations Reset & Disconnect Repaired  + (ML20085C214)
• ML20085C218  + (ML20085C218)
• ML20085C221  + (ML20085C221)
• ML20085C223  + (ML20085C223)
• ML20085C235  + (ML20085C235)
• 05000482/LER-1990-027, :on 910730,discovered That STS ML-001 Had Not Been Performed within Required Time Frame During Refueling Iv.Caused by Lack of Administrative Controls.Data Base Review Conducted  + (ML20085C237)
• ML20085C261  + (ML20085C261)
• ML20085C271  + (ML20085C271)
• ML20085C276  + (ML20085C276)
• ML20085C282  + (ML20085C282)
• ML20085C289  + (ML20085C289)
• ML20085C294  + (ML20085C294)
• ML20085C298  + (ML20085C298)
• ML20085C303  + (ML20085C303)
• ML20085C305  + (ML20085C305)
• 05000325/LER-1991-021, :on 910728,discovered That Gross Megawatt Recorder Indicated Higher than Expected for 100% Power Operations.Caused by Failed Temp Element & Removal of Table of Values.Temp Element Will Be Replaced.W/Undated Ltr  + (ML20085C306)
• NRC-91-0084, Summarizes Work Activities Completed to Resolve RHR Sys Small Bore Piping Connection Vibration Issue.Strain Gauges Installed on Most Highly Stressed Instrumentation Connection & Div II Vent Modified  + (ML20085C310)
• 05000369/LER-1991-010-01, :on 910719,discovered That Control Rod Deviation Monitor Inoperable Since 831207.On 910713,control Rod Groups 1 & 2 Misaligned by Greater than 12 Steps.Caused by Defective Procedure & Mgt Deficiency  + (ML20085C312)
• 05000219/LER-1991-004-01, :on 910803,trouble Alarm Received for Fire Zone on 51-ft Elevation of Reactor Bldg & Hourly Instead of Continuous Fire Watch Set.Caused by Personnel Error & Inadequate Guidance.Guidance Established  + (ML20085C315)