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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

• ML19340E717  +
• ML19209C207  +
• ML050690099  +
• ML20053C927  +
• L-03-077, April 2003 Monthly Operating Report for Beaver Valley, Units 1 and 2  +
• ML030230713  +
• ML20077Q481  +
• ML20101T435  +
• ML20117B715  +
• ML20141J037  +
• ML20133J573  +
• ML20149M280  +
• ML20210A931  +
• ML030420118  +
• 05000414/LER-1987-024-01, :on 870807,automatic Main Feedwater Isolation Occurred Due to hi-hi Steam Generator Water Level.Caused by Mgt Deficiency.Steam Generator Water Level Restored & Incident Will Be Discussed at Meeting  +
• 05000293/LER-1999-008-02, :on 990805,automatic Scram Occurred While at 100% Power Due to Automatic Turbine Trip.Caused by Malfunction of Moisture Separator Drain Tank a Drain Valve Controller.Level Controllers Replaced.With  +
• 05000461/LER-1999-011, :on 990816,improper Restoration of a APRM Caused Monitor to Not Meet Seismic Qualification Requirements.Caused by Lack of Knowledge.Page Latches for Other APRMs Were Inspected & No Anomolies Were Found  +
• 05000373/LER-1986-010-01, :on 860304,during Test LIS-PC-15,primary Containment Isolation Sys Groups II & IV Isolation Occurred. Caused When Jumper Became Grounded During Installation, Causing Fuse to Blow.Fuse Replaced  +
• 05000325/LER-1988-023-03, On 881021,Unit Automatically Scrammed Due to Main Turbine Trip/Turbine Stop Valve Closure.Caused by High Electrical Resistance Across Contacts 3 7 4 in Feedwater Control Transfer Relay.Relay Replaced  +
• 05000395/LER-1988-001, :on 880204,three Perimeter Cameras Lost Due to Circuit Breaker Trip.Caused by Electricians Crimping Electrical Lead While Replacing Distribution Panel Cover. Security Procedures Implemented  +
• 05000219/LER-1988-018, :on 880828,isolation Condenser Sys B Actuated During Valve Operability Test When Control Room Operator Inadvertently Opened Wrong Valve.Caused by Lack of Operator Attention.Operator Counseled  +
• 05000293/LER-1988-011, :on 880331,reactor Bldg Isolation Control Sys Inadvertently Actuated,Resulting in Automatic Closing of Secondary Containment Sys Ventilation Dampers.Caused by Personnel Error.Procedure Improvement Started  +
• 05000382/LER-1985-030, :on 850630,ESF Portion of Control Room Ventilation Sys Actuated Due to Electrical Spike in Control Room Air Intake Radiation Monitors.Caused by Portable Radio Transmitters Used Near Radiation Monitors  +
• 05000293/LER-1985-025, :on 850901,reactor Scram Occurred When Insulator in Switchyard Arced to Ground & Disintegrated. Caused by Salt Buildup Resulting from Storm.Insulator Replaced & Washdown Procedures Reviewed  +
• 05000368/LER-1984-013, :on 840617,reactor Tripped from Full Power on Low DNBR Due to Penalty Factors Generated by Core Protection Calculators.Caused by Dropped Control Element Assembly  +
• 05000336/LER-1984-009, :on 840703,during walk-through Fire Insp,While Plant at 75% Power,Discovered Door Between East & West 480-volt Switchgear Rooms Did Not Have Required Fire Rating. Door Replaced  +
• 05000311/LER-1981-061-03, /03L-0:on 810713,disagreement Between Individual Rod Position Indicators for Rods 1SB2 & 2SB2 & Shutdown Rod Bank Demand Indicators Exceeded Tech Spec.Caused by Failed Operational Amplifiers.Amplifiers Replaced  +
• 05000311/LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl  +
• 05000266/LER-1980-016-03, /03L-0:on 801217,during Testing,Emergency Diesel Generator 4D Failed to Close in on Bus.Caused by Slippage of Flexible Shaft Coupling on Speed Sensing Frequency Generator Drive Shaft.Coupling Secured  +
• 05000346/LER-1980-049-03, /03L-0:on 800614,during Restoration of Containment Pressure Inputs to Safety Features Actuation Sys Cabinets, Actuation Occurred.Caused by Deficient Procedure ST 5061.01 App F Not Requiring Trip Bypass Test  +
• 05000280/LER-1991-008-01, :on 910425,two Main Control Room/Emergency Switchgear Room Chillers Declared Inoperable.Caused by Failure of Reset Relay for Oil Pressure/Overload Trip.Edg Returned to Svc & Relay Installed  +
• 05000281/LER-1997-002, :on 961213,automatic Reactor Trip Occurred During Planned Shutdown.Caused by Steam Flow/Feedwater Flow Mismatch.Rps Functioned as Designed & Plant Placed in Hot Shutdown  +
• 05000254/LER-2018-002, Tornado Missile Protection Non-Conformance in Association with Egm 15-002  +
• 05000311/LER-1990-044, :on 901223,containment purge/pressure-vacuum Relief Sys Isolation Signals Received.Caused by Equipment/ Design Concerns.Microprocessor Pin Connections Cleaned & Tightened  +
• 05000255/LER-1992-034, :on 920701,reactor Automatically Tripped on Loss of Load Signal,Resulting in Turbine Generator Trip & Loss of Signal.Caused by Momentary Loss of Power to Turbine Sys computers.Post-trip Review Completed  +
• 05000296/LER-1993-001-03, :on 930228,unplanned Actuation of ESF Occurred When 3 DGs Automatically Fast Started.Caused by Inappropriate Personnel Action.Licensee Will Replace Damaged CAS Logic Cable & Will Submit Followup Rept  +
• 05000315/LER-1993-002-01, :on 930609,assumptions for High Energy Line Break Not Met Due to Use of Low Temperature Thermal Links to Maintain Required Vent Area.Doors to TDAFP Room Blocked Open  +
• BVY-05-036, March 2005 Monthly Operating Report for Vermont Yankee Nuclear Power Station  +
• 05000293/LER-1999-008-01, Regarding Automatic Scram at 100 Percent Power Due to Turbine Trip  +
• ML19225A178  +
• ML20212Q043  +
• 05000325/LER-1995-016, :on 950721,ESF Actuation Occurred Due to Malfunction of Reactor Protection Sys Electrical Protection Assembly Logic Card.Replaced RPS Bus B EPA-4 Logic Card  +
• 05000395/LER-1983-103-03, /03L-0:on 830910,w/unit in Mode 1,plant Went from 97% Power to 79% within 1 H.Required Isotopic Iodine Analysis Not Performed within 2 to 6 H.Caused by Personnel Error.Procedure Mods Implemented  +