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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

• ENS 41991  +
• 05000265/LER-2014-001, Regarding Control Rod Drive Hydraulic Control Unit Scram Inlet Isolation Valve Pressure Boundary Leak  +
• ML18038B120  +
• ML19029B020  +
• ML042670380  +
• ML20085E206  +
• ML20100R429  +
• ML20095E225  +
• ML20138A817  +
• ML20206N226  +
• ML20235Z160  +
• ML20215C338  +
• 05200025/LER-2022-003, Unborated Water Flowpath Not Secured Per Technical Specification 3.9.2 Due to Inadequate Procedure Change  +
• 05000461/LER-1989-020, :on 890415,determined That Polarity of Test Equipment Connections to Digital Signal Conditioner Pins Reversed.Caused by Failure to Investigate Consequences of Shorting Pins.Supervisor Counseled  +
• 05000341/LER-1999-004, :on 990913,HPCI Sys Was Noted Inoperable.Caused by Failed HPCI Room Temp Switches.Replaced Temp Switches & HPCI Was Restored to Operable Status.With  +
• 05000219/LER-1986-013, :on 860619,secondary Containment Isolation & Initiation of Standby Gas Treatment Sys Occurred.Caused by Failure of Radiation Monitor Power Supply.Failed Power Supply Replaced W/Spare Unit  +
• 05000289/LER-1986-011, :on 860601,breaker 1C-02 (Feeder Breaker to Turbine Plant Bus 1C) Tripped.Caused by Failure to Reset Plunger on Phase a Overload Device,Discovered on 860602. Westinghouse Breaker DB-25 Replaced  +
• 05000301/LER-1990-002-01, :on 901009,inadvertent Start of Auxiliary Feedwater Pumps Occurred  +
• 05000498/LER-1998-010, :on 981021,FHB Exhaust Booster Fan 11A Was Declared Inoperable When Ground Indication Was Discovered During Sp.Caused by Fan Motor That Needed to Be Replaced. Preventive Maint Was Performed on Motors.With  +
• 05000414/LER-1998-004-04, :on 980906,de-energization of Vital Bus & Actuation of LTOP Occurred.Caused by Error During Tagout. Power Was Restored to 2ETB IAW Plant Procedure AP/2/A/5500/ 07 & Individuals Involved Were Counseled Re Subject Error  +
• 05000293/LER-1997-007, :on 970401,safeguard Buses Were de-energized Due to Severe Storm.Replacement of Microprocessor Control Units Installed in Voltage Regulating Transformers  +
• 05000334/LER-1985-018, :on 851004,w/unit at 40% Power,First Out Annunciators & Vital Bus III Inverter Trouble Alarm Annunciated.Caused by Misfiring Silicon Control Rectifier. Plant Stabilized Per Emergency Procedures  +
• 05000498/LER-1992-013, :on 920915,discovered That Portion of Containment Spray Channels Between Process Instrumentation & ESF Actuation Instrumentation Not Completely Verified.Caused by Inadequate Review.Procedures Revised  +
• 05000382/LER-1991-009, :on 910521,discovered That Safety Injection Tank 1A & 1B Inoperable Due to Relief Valve Malfunction. Precaution Will Be Added to NOCP-207,cautioning Scaffolders to Exercise Caution in Safety Injection Area  +
• 05000333/LER-1992-014, :on 920302,primary Containment Drywell High Range Radiation Monitor Trip Signal Caused Automatic Closure of Two Vents.Caused by Susceptability to Electromagnetic Interference.Monitor & Logic Reset  +
• 05000293/LER-1992-002, :on 920227,inadvertent Actuation of Channel a Portion of RB Isolation Control Sys Occurred During Surveillance Test.Caused by Limited Access to Actuating Relay.Procedures Were Revised  +
• 05000285/LER-1984-003, :on 840314,while Tagging Out Instrument Inverter B for Maint,Switching Error Made,Causing Partial Loss of Dc Power.Breaker Reclosed to Restore Dc Power in Control Room  +
• 05000382/LER-1991-009-01, :on 910521,safety Injection Tank 1A & 1B Declared Inoperable.Caused by Equipment Malfunction.Relief Valves for SIT 1A & 1B Later Removed,Tested & Returned to Svc  +
• 05000293/LER-1990-015, :on 900913,unplanned Partial Isolations of Hydrogen & Oxygen Analyzer Sys & Reactor Coolant Pressure Boundary Leak Detection Sys Occurred  +
• 05000293/LER-1990-013, :on 900902,unplanned Manual Reactor Scram Initiated W/Reactor Power at 60%.Fuse Blew in Feedwater Control Circuit Power Supply Causing Feedwater Regulating Valves to Lockup.Trip Linkage Repaired  +
• IR 05000280/1982001  +
• 05000272/LER-1981-111, Forwards LER 81-111/03L-0.Detailed Event Analysis Encl  +
• 05000272/LER-1981-111-03, /03L-0:on 811106,containment Fan Coil Unit 11 Failed to Start in Low Speed Mode After Safety Injection Signal.Caused by Failure of Automatic Trip Shutter on Low Speed Circuit Breaker to Close When Breaker Racked in  +
• 05000301/LER-1990-002, :on 901009,inadvertent Start of Auxiliary Feedwater Pump Occurred.Caused by Inadequate Test Procedures.Auxiliary Feedwater Pump Secured & Maint Work Request Mwr 904517 Initiated  +
• 05000339/LER-1990-001-02, :on 900215,inadvertent Partial Train a ESF Actuation of Containment Depressurization Sys Occurred. Caused by Human Error.Evaluation to Be Performed to Determine If Test Points Can Be Moved  +
• 05000293/LER-1989-035, :on 891111,inadvertent Actuation of Portion of Secondary Containment Sys During Surveillance Testing Occurred.Caused by Location of Radiation Isolation Control Sys Channel a Logic Relay.Procedure Revised  +
• ML20029E600  +
• 05000499/LER-1989-028, :on 891130,control Room Ventilation Sys Actuated to Recirculation Mode as Result of Spurious Signal. Caused by Memory Error Causing Microprocessor to Energize Relay Incorrectly.Troubleshooting Planned  +
• 05000397/LER-1991-005, :on 910402,determined That Oxygen Concentration in Wetwell Not Being Verified Once Per Seven Days,Per TS Due to Inadequate Procedures.Contractor Hired to Review TS SRs Against Plant Procedures (Pp) & Pp 7.0.0 Revised  +
• 05000397/LER-1988-029, :on 880824,RCS Unidentified Leakage Noted to Be in Excess of 5 Gpm Tech Spec Limit & RCIC Steam Supply Inboard Isolation Valve Had Large Packing Leak.Caused by Maint Program Deficiency  +
• 05000336/LER-2014-007, Regarding Completion of Plant Shutdown Required by Technical Specifications  +
• 05000354/LER-2005-003, Regarding Reactor Coolant System Leak from Check Valve Position Indicator  +
• 05000265/LER-2003-002, Regarding Self-Actuation of Main Steam Relief Valve Due to Excessive Leakage Through Pilot Valve Seat  +
• ML031130136  +
• ML17334B395  +
• PLA-7928, Annual Radiological Environmental Operating Report  +
• ML20245K731  +
• 05000295/LER-1997-005-03, :on 970221,supplement to Unapproved Mode Change W/Ts Required Equipment Inoperable Were Noted.Caused by Inadequate Planning & Briefing.Both Units Have Been Placed in Cold Shutdown W/Rcs at Atmospheric Pressure  +
• 05000272/LER-1981-110, Forwards LER 81-110/03X-2.Detailed Event Analysis Encl  +