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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 43802  +
• 05000272/LER-1989-006, :on 890204,1R41C RMS Channel Began Spiking High Resulting in Actuation Signal for Containment Purge/Pressure Vacuum Relief Sys Isolation.Caused by Failed Electrical Components.Monitor Replaced  +
• ML18066A876  +
• 05000280/LER-1993-008-01, :on 930520,fire Watch Inadvertently Discontinued as Result of Inadequate Fire Barrier Repair Review Process.Penetration 2569 Repaired & Declared Functional  +
• ENS 42475  +
• GNRO-2003/00009, Annual Operating Report  +
• GNRO-2002/00094, October 2002 Monthly Operating Report for Grand Gulf Nuclear Station Unit 1  +
• ML20084H251  +
• ML20078M904  +
• ML20077D870  +
• ML20097E484  +
• ML20091K899  +
• ML20085B474  +
• ML20072V120  +
• ML20246H220  +
• NRC-98-0017, Responds to NRC Re Violations Noted in Insp Rept 50-341/97-14.Corrective Actions:Conducted Small Group Sessions W/Operators on Performance & Responsibilities Re TS Compliance & Modified Computer Software for Unit Log  +
• 05000334/LER-1989-003-01, :on 890311,actuation of Control Room Emergency Breathing Air Pressurization Sys Occurred.Caused by Electrical Failure High of a Train Control Room Radiation Monitor.Control Room Radiation Level Verified  +
• 05000414/LER-1987-007, :on 870224,reactor Trip Occurred.Caused by Mgt Deficiency & Equipment Failures.Undervoltage Condition 2EPD on Computer & Feeder Breaker to 2EPD Repaired.Update of Events Issued to Personnel  +
• 05000325/LER-1989-003, :on 890212,automatic Isolation of Common Control Bldg HVAC Sys Occurred Due to Actuation of Chlorine Detector.Cause Undetermined.Detector Returned to Svc  +
• 05000320/LER-1987-007-02, :on 870807,abnormal Pressure Indicated on One Halon Cylinder for Cable Room & Transformer Room Halon Sys. Caused by Deficient Solenoid Pilot Valve.Valve Replaced. Procedures Will Be Modified  +
• 05000285/LER-1987-009, :on 870404,during Refueling Shutdown Condition, All Offsite Ac Power Was Lost.Caused by Worker Inadvertently Pulling Wrong Potential Transformer (PT) Fuses.Pt Fuses Associated W/Transformer Reinstalled  +
• 05000414/LER-1986-019, :on 860526,main Feedwater Isolation Occurred. Caused by Mfg Failure to Provide Sufficient Info to Allow Adequate Initial Calibr of Feedwater Control Sys.Isolation Reset.Startup & Shutdown Procedures Revised  +
• 05000249/LER-1986-005-09, :on 860519,emergency Diesel Generator Automatically Started & Closed 4-kV Bus 34-1 Due to Undervoltage Condition on Bus.Caused by Personnel Error. Individual Counseled  +
• 05000414/LER-1986-019-01, :on 860526,main Feedwater Isolation Occurred Due to Overfeeding of Steam Generator.Cause Not Determined. Investigation Continuing  +
• 05000249/LER-1987-002-09, :on 870225,while Unit Operating at 87% Power, HPCI Sys Discovered Inoperable.Caused by Oil Pressure Regulation Valve Failure.Similar Event Occurred on 870313. Limits of PS4 Reset to 60 Psig Increasing  +
• 05000267/LER-1987-005, :on 870219,Loop II Shutdowns Occurred.Caused by Personnel Error,Inadequate Clearance,Insufficient Detail in Functional Test & Design Wiring Error.Personnel Responsible for Design Wiring Error Reprimanded  +
• 05000414/LER-1988-019, :on 880527,undervoltage Condition Occurred on Auxiliary Control Power Sys Distribution Panel 2KXPB.Caused by Mgt Deficiency Due to Lack of Training to Operators & Design Deficiency.Unit Stabilized in Mode 3  +
• 05000414/LER-1988-019-01, :on 880527,reactor Trip During Cycle of Alternate Source to Kxpb Breaker,Recommended by Control Room Operator to Clear Undervoltage Condition.Caused by Mgt & Design Deficiency.Util Stabilized in Mode 3  +
• 05000352/LER-1985-100, :on 851226,hourly Fire Watch Insps for Four Reactor Encl Fire Barriers Not Performed within Required Time Frame.Caused by Negative Encl Pressure,Due to Supply Fan Trip,Preventing Opening of Airlock Doors  +
• 05000413/LER-1985-071, :on 851220,reactor Trip Occurred.Caused by Equipment Malfunction.Work Request Initiated to Investigate & Repair Steam Generator Feedwater Control Valve 1CF28  +
• 05000352/LER-1991-009, :on 910412,reactor Scram Resulted from Spurious Loss of Dc Electrical Power Supply to Main Turbine EHC Sys Due to Personnel Error.Copper Links Replaced W/Hard Wire Connectors  +
• 05000282/LER-1994-001, :on 940301,auto Start of Cooling Water Pump 121 Occurred on Low Header Pressure While Aligned for Safeguards Operations.Caused by Inadequate Procedures.Operating Procedure Revised  +
• 05000341/LER-1990-008, :on 900905,HPCI Inadvertant Isolation Occurred. Caused by Spurious High Steam Flow Signal on One of Two Channels.Engineering Design Change Implemented to Filter Out Existing Background Noise from Output  +
• 05000352/LER-1993-006-01, :on 930506,ESF Actuation Resulted from Rwcs Isolation Due to High RWCU Pump a Room Temp.Faulty Breaker Replaced & Re HVAC Sys Repaired  +
• 05000346/LER-1981-030-03, /03L-0:on 810512,axial Power Imbalance Limit Exceeded.Caused by Procedural Inadequacy.Procedures ST 5042.02 & EP 1205.16 Have Been Modified  +
• 05000498/LER-1989-017-01, :on 890814,health Physics Personnel Detected Radiation Levels of .3 to .8 Mr/Hr in Auxiliary Steam Line to Liquid Waste Processing Sys Waste Evaporator.Caused by Inadequate Controls & Personnel Error  +
• 05000416/LER-2018-010-01, Reactor Manual Scram Due to Main Steam Bypass Stop and Control Valve Drifting Open  +
• 05000416/LER-2018-010, Reactor Manual Scram Due to Main Turbine Bypass Valve Drifting Open  +
• 05000272/LER-1989-010, :on 890209,two Trains of ESF Sys Made Inoperable by Common Mode.Caused by Equipment Problem.Air Sample Pump Replaced,Monitors Declared Operable on 890210 & Event Will Be Reviewed by Nuclear Training Ctr  +
• 05000315/LER-1994-007, :on 940607,determined That Rod Position Indication Greater than 12 Steps from Demand Position Indication.Caused by Failure to Follow Procedure as Written. Correct Data Used to Determine Rod Position  +
• 05000397/LER-1993-031, :on 931109,engineering Evaluation Determined That MCR HVAC Sys Will Not Maintain CR Temp.Caused by Inadequate Design Margin in Original Design.Per Written to Document Potential Analysis Concerns  +
• 05000259/LER-2014-001, Brown Ferry Nuclear Plant (Bfn), Unit 2 Regarding Electric Board Room Air Conditioning System Inoperable for Longer than Allowed by the Technical Specifications  +
• 05000414/LER-1987-007-01, :on 870224,reactor Tripped Due to Undervoltage Condition.Caused by Mgt Deficiency & Failure of Optical Isolator & Feeder Breaker.Undervoltage Condition on Computer & Feeder Breaker to 2EPD Repaired  +
• 05000266/LER-1998-007, :on 980123,determined That Relay Installed in 1P-29 turbine-driven Auxiliary Fdw Pump Low Suction Pressure Trip Circuitry Possessed Incomplete Solder Connection.Caused by Incomplete Solder Connection.Circuitry Replaced  +
• 05000293/LER-1997-009, :on 970417,RCIC Sys Became Inoperable.Caused by Gear Change in Motor Operator of RCIC Sys Flow Test Valve. RCIC Sys Procedures for Potential Rev Reviewed  +
• 05000336/LER-1995-020, :on 950516,automatic Actuation of ESF Occurred During Maint Due to Inadequate Design of ESFAS Circuitry for Maint.Fans F25A & F32A Secured & Possible Changes to ESFAS Sys Will Be Investigated  +