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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

• ML17321B016  +
• L-05-088, April 2005 Monthly Operating Report for Beaver Valley, Units 1 & 2  +
• ML20005F440  +
• ML20063G217  +
• ML20058M580  +
• ML20100A005  +
• ML20137S417  +
• ML20127A045  +
• ML20127C920  +
• ML20206P150  +
• ML20214E673  +
• ML20210B049  +
• ML21071A106  +
• ML21071A105  +
• ML21055A029  +
• 05000412/LER-1987-031, :on 871020,leaks Discovered Through Clamp on RCS Loop a Cold Leg Bypass Isolation Valves 2RCS*44,2RCS*37 & 2RCS*46 in Excess of Tech Spec Limits.Cause Undetermined. Valves Repaired or Replaced  +
• 05000324/LER-1986-022-01, :on 861003,reactor Shut Down Due to Unsuccessful Restart of Motor Generator Set.Caused by Opened Fuses.Fuse 7 Transformer Replaced,Motor Generator Restarted & Loop Returned to Svc  +
• 05000458/LER-1997-007-02, :on 970926,discovered Cracked EDG Valve Adjusting Screw Assembly Swivel Pads (Vasasps).Caused by Mfg Defect.Replaced Vasasps in EDGs W/New Components & Returned Defective Vasasps to Vendor for Analysis  +
• 05000336/LER-1999-011, :on 990823,thermal Reactor Power Limit Was Exceeded.Caused by Lack of Conservatism in Procedures & Alarm Setpoints Used to Limit Reactor Power.Revised Operating Procedures  +
• 05000414/LER-1990-013-03, :on 901007,main Feedwater Pump Tripped Due to Equipment Failure  +
• 05000293/LER-1988-001, :on 880106,automatic Isolations of Portions of Primary Containment & Reactor Bldg Isolation Control Sys Occurred.Caused by Failure in Logic Relay 16A-K57.Coil in Relay Replaced & Other Relay Coils Analyzed  +
• 05000334/LER-1988-009, :on 880611,reactor Trip & Feedwater Isolation Occurred.Cause Under Investigation.Special Operating Order Issued to Prevent Configuration.Affected Steam Dump Valves Isolated  +
• 05000331/LER-1985-015, :on 850529,w/reactor Shut Down & Electric & Diesel Fire Pumps Removed from Svc,Well Water Pump Aligned for Fire Suppression.On 850531,nearby Fire Main Ruptured. Damaged Piping Isolated & Repaired  +
• 05000311/LER-1985-009, :on 850510,reactor Trip Occurred While Performing Rod Control Assembly Surveillance Requirements. Caused by Power Range High Negative Neutron Flux Rate Signals from Dropped Control Rod  +
• 05000302/LER-1996-004, :on 960112,potential Leakage Into Control Complex Habitability Envelope Was Above Design Limits Due to Worn & Missing Damper Components.Implemented Periodic Insp of Cche Isolation Dampers for Leakage  +
• 05000339/LER-1992-012, :on 920419,2H 4160-volt Emergency Bus Became de-energized During Response Time Testing of Circuitry & SW Flow to Component Cooling HX Was Lost Momentarily.Bus Was re-energized & SW Flow Was Restored  +
• 05000397/LER-1984-053, :on 840528,control Room Emergency Filtration Unit Actuated Due to Spike on Outside Air Radiation Monitors.Caused by Closure of RCIC Valve.Alarms Reset & Noise Suppression Devices Installed  +
• 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  +
• 05000382/LER-1991-013, :on 910624,reactor Manually Tripped Due to High Water Level in Sg.Caused by Process Analog Control (Pac) Card in Valve Control Circuitry Failing.Pac Card Replaced.Pac Card Will Be Trended  +
• 05000382/LER-1991-013-02, :on 910624,manual Reactor Trip Occurred in Response to High Steam Generator Water Level.Caused by Failed Startup Feedwater Regulating Valve.Pac Card Replaced  +
• 05000498/LER-1991-001-01, :on 910122,containment Ventilation Isolation Actuation Occurred While Plant in Third Refueling Outage. Caused by Spurious Actuation of Radiation Monitoring Sys. Training Bulletin Issued Re Event  +
• 05000353/LER-1990-017-02, :on 900916,inadvertent Actuation of Primary Containment & Reactor Vessel Isolation Control Sys Occurred  +
• 05000414/LER-1990-013-01, :on 901007,reactor Trip Occurred Due to low-low Level in 2D Steam Generator Due to Equipment Failure Resulting in Reactor & Main Turbine Trip.Event Reviewed & Investigated  +
• 05000338/LER-1993-013, :on 930414,identified Addl Missed Surveillance to Functionally Test Entire Circuitry for Manual Phase a Isolation Switches.Caused by Personnel Error.Periodic Test Procedures Will Preclude Recurrence  +
• 05000293/LER-1993-004, :on 930313,automatic Scram Occurred Resulting from Load Rejection During Severe Coastal Storm While at 100% Power.Caused by Environ Effects of Storm.Trip Settings of Main Input Circuit Breakers Increased  +
• 05000313/LER-1993-002, :on 930309,during Transfer of Power Sources from offsite-supplied Startup Transformer to Unit Auxiliary Transformer,Circuit Breaker Did Not Close.Caused by Procedural Deficiency.Breaker racked-out  +
• 05000400/LER-1987-053, :on 870813,valve 1BD-11 Discovered Inoperable After Failing Inservice Insp Test.Caused by Valve Failure Due to Binding of Carbon Seal Rings Between Valve Cage & Valve Plug.Valve Repaired  +
• 05000397/LER-1990-009, :on 900430,three Separate Spurious Trips of RPS Electrical Protection Assembly (EPA) Circuit Breaker Occurred.Caused by Degraded Component in Logic Board of Epa. RPS-EPA-3F Breaker & Logic Board Replaced  +
• 05000266/LER-2007-005, Regarding Manual Reactor Shutdown Required by Technical Specification; LCO 3.7.5 Auxiliary Feedwater Not Met  +
• ML051440323  +
• 05000293/LER-1998-009, :on 980430,incorrect Specification of Seismic Requirements for Safety SRV Line Vacuum Breakers,Were Discovered.Caused by Incorrect Use of Seismic Input Criteria.Problem Rept & Engineering Evaluation Written  +