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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 48018  +
• ML17319A593  +
• 05000255/LER-1993-010, :on 930917,primary Coolant Sys Cooldown Rate as Defined in TS Exceeded.Caused by Combination of Personnel Error & Inadequate Procedures.Proper Temp Monitoring Techniques Verified  +
• AEP-NRC-2011-50, Submittal of Spill Notification for NPDES Permit No. MI0005827  +
• ML19319B756  +
• 05000369/LER-1981-057, Forwards LER 81-057/03L-0.Detailed Event Analysis Encl  +
• ML050190165  +
• ML043370046  +
• ML031950451  +
• ML20086M934  +
• ML20085G928  +
• ML20085G860  +
• ML20244E151  +
• NRC-87-0113, Ro:On 870625,emergency Diesel Generators (Edgs) 12,13, & 14 Automatically Started Simultaneously Due to ESF Actuation Signal.Edgs 12 & 14 Synchronized & Loaded Successfully.Edg 1 Trouble Alarm Annuciated.Cause Unknown  +
• 2CAN078604, Monthly Operating Rept for June 1986  +
• IR 05000254/1987002  +
• 05000341/LER-1987-025, :on 870625,reactor Protection Sys Actuated & Several ESFs Challenged.Caused by Pressure Spike Sensed by Reactor Vessel Water Level Transmitters on Common Ref Leg. Multi-turn Needle Valves Will Be Installed  +
• 05000269/LER-1997-011-01, :on 971228,initiated Shutdown Due to Calculated 404 Gallons Per Day SG Leak.Caused by Inadequate Process Control.Repaired Leaks  +
• 05000304/LER-1997-003-10, :on 971014,unit 2 RHR Sys Declared Inoperable. Caused by Oil Leak from Oil Bulb.Leak Coming from Oil Bulb on Ob CC Pump Stopped by Removing Bulb & Inspected  +
• 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-1985-022, :on 850314,diesel Generator 1B Inoperable Due to Loss of Dc Control Power.Caused by Component Malfunction, Procedural Deficiency & Personnel Error.Control Power on Socket Repaired & Light Bulb Replaced  +
• 05000266/LER-1985-006, :on 850903,turbine Runback Occurred.Caused by Voltage Spike on Red Instrument Bus,Resulting in Momentary Downward Spike on Nuclear Instrumentation Sys.Red Inverter Inspected & Returned to Svc.All Sys Normal  +
• 05000461/LER-1996-004, :on 960409,inadequate Job Preparation for Preventive Maint Task on Switchyard Breaker Caused MSIV Closure & Reactor Scram.Plant Procedures Revised  +
• 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  +
• 05000339/LER-1991-011-02, :on 911103,plant Shutdown Required by Technical Specifications Due to RHR Valve Packing Failure.Caused by Failure of Packing RHR Sys Inlet Isolation Motor Operated Valve.Valve Packing Repaired  +
• 05000261/LER-1976-010, :on 760404,total Cumulative Time Outside CAOC Limits Exceeded 1 Hr,Resulting in Operation in Degraded Mode.Caused by Xenon Imbalance Resulting in Radial Power Tilt.Pumps Vented & Seal Flow Reestablished  +
• 05000278/LER-1993-011-02, :on 931211,terminal Block in Bottom of 4 Kv Cubicle Knocked Off Its Mount.Caused by Improper Coordination of Required TS Surveillance Requirement Shift Supervisor.Supervisor Counselled  +
• 05000311/LER-1981-123-03, /03L-0:on 811119,after Satisfactory Performance of M3B Surveillance test,2A Safeguards Equipment Cabinet Would Not Reset & Vital Bus Tripped,Stripping Bus of Loads. Caused Not stated.SK6 Input Reset Relay Replaced  +
• 05000311/LER-1981-123, Forwards LER 81-123/03L-0.Detailed Event Analysis Encl  +
• 05000456/LER-1993-002-05, :on 930201,identified Nonconservatism in Heatup/Cooldown & Cold Overpressure Protection PORV Setpoint Curves.Caused by Design Deficiency.Curve Book & Surveillance Procedures Revised  +
• 05000311/LER-1981-055-03, /03L-0:on 810716,containment Fan Coil Unit 21 Declared Inoperable After Low Flow Alarm Received.Caused by Inlet Transmitter Being Clogged W/Silt.Both Legs Blown Down & Equalizer Valve & Vent Valves Flushed  +
• 05000311/LER-1981-055, Forwards LER 81-055/03L-0.Detailed Event Analysis Encl  +
• NUREG-0227, Partial Draft of Nuclear Power Plant Operating Experience - 1978, Section 3.0, Plant Outages. Portions of NUREG-0483, NUREG-0366 & NUREG-0227 (Plant Operating Experience for 1977,1976 & 1974-75,respectively) Encl  +
• 05000260/LER-1999-001-05, :on 990515,automatic Reactor Scram Occurred Due to Tt.Caused by Failure of Mechanical Trip Cylinder to Latch When Hydraulically Reset.Operations Crew Stabilized Reactor Following Scram.With  +
• 05000387/LER-2015-006, Regarding Loss of Safety Function Due to Inoperability of Both Trains of the Standby Gas Treatment System and a Loss of Safety Function of the Control Room Emergency Outside Air Supply System Due to Air Flow  +
• 05000346/LER-2014-002, Regarding Manual Initiation of the Reactor Protection System Due to Disconnected Cooling of a Control Rod Drive  +
• 05000352/LER-2013-002, Regarding Condition That Could Have Prevented Fulfillment of the Offsite Power Safety Function  +
• 05000440/LER-2011-002, Regarding Condition Prohibited by Technical Specifications and Plant Shutdown Due to Unit 1 Startup Transformer Issues  +
• 05000335/LER-2010-007, For St. Lucie, Unit 1, Regarding Latent Failure of Steam Driven AFW Pump Led to Operation Prohibited by TSs  +
• ML19263C226  +
• 05000341/LER-1987-026, :on 870625,RWCU Sys Isolation Occurred.Caused by Shutdown of RWCU Pumps While Reactor Operating Above Ambient Temps.Evaluation Being Made to Revise Sys Operating Procedure  +
• 05000346/LER-1997-008, :on 970318,inadequate Testing of safety-related Logic Occurred.Overall Root Cause Will Be Completed by 980930 & Results of Evaluation Will Be Reported in Suppl to LER  +
• PLA-8174, Annual Radiological Environmental Operating Report (PLA-8174)  +