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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 50457 +
- ML110630276 +
- ML20011D159 +
- ML20009C878 +
- L-2014-231, Request for Enforcement Discretion Regarding Technical Specification 3/4.7.4, Ultimate Heat Sink +
- NRC-05-0001, December 2004 Monthly Operating Report for Fermi 2 +
- ML19331B903 +
- ML20050B874 +
- 05000311/LER-1982-037, Forwards LER 82-037/03L-0.Detailed Event Analysis Encl +
- 05000272/LER-1982-051, Forwards LER 82-051/03X-1.Detailed Event Analysis Encl +
- ML20070F291 +
- ML20085D112 +
- ML20096C410 +
- ML20076K601 +
- ML20141N638 +
- ML20138B635 +
- ML20151F994 +
- 05000302/LER-1997-039, Corrected Page 1 to LER 97-039-00,adding Rept Date in Block 7.On 971108,unqualified Matl Discovered Left in Reactor Bldg During Const.Caused by Personnel Error.Polystyrene Permanently Installed +
- ML20235J618 +
- 1CAN028706, Monthly Operating Rept for Jan 1987 +
- 05000341/LER-1989-014, :on 890603 & 18,discovered That Both Channels Bypass/Unbypass Functions Were Slightly Above Limits Allowed in Tech Specs.Caused by Emphasis on Checking Bypass Function of Bistable.Channels Properly Calibrated +
- 05000352/LER-1987-040, :on 870804,actuation of Group I Nuclear Steam Supply Shutoff Sys Occurred.Caused by Short Circuit from Poor Connection on Relay Logic Board Connector.Isolation Reset & Faulty Connection Removed & Remade +
- 05000324/LER-1998-001-03, :on 980610,reactor Core Isolation Cooling Sys Isolation Instrumentation Setpoint Shift,Was Determined. Caused by Failure to Establish Comprehensive Actions. Affected Pressure Switch Setpoints Calibrated +
- 05000334/LER-1986-013, :on 861120,maint Surveillance Procedure Initiated to Calibr Undervoltage Protection Relay for 4,160 Volt 1DF Emergency Bus.Tech Spec 3.8.1.1.a Requirements Not Initiated on Time.Procedure Schedule Revised +
- 05000382/LER-1986-018, :on 860903,seismically Unqualified Power Supply Panel for Hydrogen Recombiner Discovered.Caused by Absence of Structural Weld.Outside Foundation Weld Installed.W/ +
- 05000261/LER-1986-010-01, :on 860324,generator Lockout Resulted in Turbine & Reactor Trips.Caused by Operators Not Knowing Turbine Governor Valves Part of Generator Trip Circuit.Maint Procedures Revised & Operators Informed +
- 05000259/LER-1997-004-04, :on 971010,discovered That RHR Swp LCO Is non- Conservative.Caused by Error in Preparation & Approval of Original TS 3.5.C.Will Submit TS Change to NRC to Remove non-conservatism from TS 3.5.C +
- 05000341/LER-1985-061, :on 850924,reactor Water Cleanup Sys Isolated. Caused by Incorrect Module Leads Being Lifted,Simulating High Temp Signal.Sys Isolated Again on High Differential Flow Signal Due to Flow Problems +
- 05000293/LER-1978-002-01, /01X-1:on 780120,100-ft Shielding Mast Fell Across 345 Kv Yard Bus Works & Interrupted Power to Startup Transformer from Transmission Line 355.Caused by Cyclical Fatigue Cracking at Stress Points Due to Wind +
- 05000423/LER-1996-035-01, :on 960920,motor Operated Valve Performance Found Outside Design Basis of Plant.Caused by Inadequate Design & Verification of Actuator.Mov Calculations Will Be Revised +
- 05000423/LER-1996-020-03, :on 960627,Mode 5 of Ms Motor Driven Atmospheric Relief Valves Were Determined Not to Be Able to Perform Safety Functions.Caused by Personnel Error.Revised Design Basis Review & Thrust Calculation +
- 05000423/LER-1996-019-02, :on 960627,RCS PORV Block Valves Were Determined to Be Unable to Perform Intended Safety Functions.Caused by Structural Design Deficiency.C/A Will Be Provided in Supplement to Rept +
- 05000293/LER-1992-005, :on 920403,actuation of CSCS Logic Circuitry Occurred While Shut Down.Caused by Procedure Deficiency. Procedure Tp 92-020,Rev 0 Retired & Replaced by Procedure Tp 92-022,Rev 0 +
- 05000254/LER-1991-023-01, :on 911126,control Room HVAC Toxic Gas Analyzer Annunicated Trouble Alarms,Causing Control Room Vents to Isolate.Cause Undetermined.Analyzer Declared Inoperable & New Probes Ordered +
- 05000339/LER-1994-005-01, :on 940601,leakage Identified from Nozzle Weld on Small Diameter Seal Injection Line Associated W/B Reactor Coolant Pump.Caused by Seal Injection Line Nozzle Weld Failure.Unit Placed in Cold Shutdown +
- 05000277/LER-1994-007-02, :on 940810,secondary Containment Breached to Fight Fire Inside Unit 2 Vent Stack Protective Siding.Caused by Work Area Not Being Properly Staged.Fire Promptly Extinguished & Secondary Containment Restored +
- 05000272/LER-1982-051-03, /03X-1:on 820728,following Reactor Trip,Level in Auxiliary Feed Storage Tank Dropped Below Tech Spec Min. Caused by Binding of Valve 1DR6.Valve Manually Cycled & Tank Level Restored to Normal.Valve Returned to Remote Mode +
- 05000293/LER-1993-022, :on 930910,simultaneous Loss of Preferred Offsite Power & Automatic Scram Resulting from Load Rejection Occurred.Caused by Load Rejection.Switchyard Walked Down for Evidence of Damage +
- 05000029/LER-1990-007, :on 900927,incore Instrumentation Spire Failure Resulted in Pressure Boundary Leakage +
- 05000219/LER-1981-060, Forwards LER 81-060/03L-0.Detailed Event Analysis Encl +
- 05000259/LER-1993-002-02, :on 930212,DG D auto-started on Undervoltage Following Unexpected Trip of Shutdown Bus 2,opening Bus 2 Alternate Feeder Breaker & Deenergizing Bus 2.Caused by Inadequate Procedure.Preventive Maint Procedure Revised +
- ML20033F368 +
- 05000254/LER-1989-021-03, :on 891124,HPCI Deluge Sys Functional Test Not Completed within Tech Spec Interval of 6 Months.Caused by Mgt Deficiency & Insufficient Procedure.Procedures Revised to Better Control Tech Specs +
- ML19350E287 +
- 05000272/LER-1990-009-01, :on 900328,main Steamline Isolation Signal Actuated During Performance of Channel I Main Steamline Flow Calibr.Caused by Inadequate Procedure.Main Steamline Flow Detector Calibr Procedure Revised +
- 05000250/LER-2014-004, Regarding Ultimate Heat Sink Temperature Limit Exceeded Due to Environmental Conditions +
- 05000255/LER-2011-006, Regarding Valve Packing Failure Resulted in Reactor Trip and Auxiliary Feedwater System Actuation +
- 05000413/LER-2011-001, For Catawba Nuclear Station, Unit 1 Regarding Technical Specification Violation Involving Notice of Enforcement Discretion Due to Failure of Diesel Generator Mechanical Governor +
- ML050190204 +
- ML20149J183 +