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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 40958  +
• ENS 40977  +
• ENS 43351  +
• 05000346/LER-2016-001, Regarding Reactor Trip During Nuclear Instrumentation Calibrations and Steam Feedwater Rupture Control System Actuation on High Steam Generator Level  +
• 05000247/LER-2004-005, Regarding Automatic Reactor Trip Due to Turbine Generator Trip Caused by Low Stator Cooling Water Pressure  +
• IR 05000259/2013002  +
• ML17317A936  +
• PLA-7601, Annual Radiological Environmental Operating Report - 2016  +
• IR 05000316/1978037  +
• ML19305D309  +
• ML20046B081  +
• ENS 51679  +
• ML040490523  +
• ML20062H559  +
• ML20137B587  +
• ML20199D031  +
• ML20235J596  +
• ML20209J183  +
• ML20058K863  +
• 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  +
• 05000324/LER-1987-007, :on 870504,Div 1 Group 5 Primary Containment Isolation of RCIC Sys Autoclosed.Caused by Valve Shifts of Involved Electronic Components Due to long-term Thermal Degradation.Faulty Part Replaced  +
• 05000440/LER-1997-009, :on 970819,automatic Actuation of ESF Occurred. Caused by Personnel Error.Individual Involved Counseled to Address Deficient Work Practices  +
• 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  +
• 05000461/LER-1999-002, :on 990106,loss of Offsite Power to SR Electrical Buses Was Noted.Caused by Offsite Fault on in Service Offsite Electrical Supply Line.Repairs Were Made to Faulted Line & Leaning Support Structure.With  +
• 05000331/LER-1986-016, :on 860507,RWCU Sys Isolated Due to High Temp Indication from Nonregenerative Hx.Caused by Misleading Electrical Schematic.Schematic Will Be Revised  +
• 05000374/LER-1988-004-06, :on 880321,MSIV Leakage Control System Blower & Heater Operability Test Past Critical Time & Declared Inoperable.Caused by Personnel Error.Shift Foreman Trained to Review Computerized Surveillance Schedule  +
• 05000368/LER-1985-027, :on 851217,monthly Surveillance Revealed That Armatures on Undervoltage Devices for Reactor Trip Circuit Breakers 4 & 8 in mid-position.Cause Not Stated.Procedures Changed to Require Verification of Position  +
• 05000498/LER-1993-002, :on 930109,TS 3.0.3 Condition Declared When Two Channels of power-range Instrumentation Inoperable.Caused by Inadequate Procedural Guidance in Calibr Procedure.Channel Calorimetrics Procedure Revised  +
• 05000254/LER-1991-021-01, :on 911025,RCIC Declared Inoperable Due to High Pump Flow in IST Required Action Range.Caused by Instrument Drift Due to Aging of Control Room.Control Room Tachometer Indicators Replaced  +
• 05000278/LER-1994-003-03, :on 940811,HPCI System Was Considered Inoperable & Was Placed in Secured Condition by Reactor Operator.Caused by Individuals Incorrectly Deciding to Work on CR Relay.Hpci System Was Restored  +
• 05000277/LER-1991-006-01, :on 910220,scram Caused by de-energizing Intermediate Range Monitor.Caused by Failure to Follow Procedure.Individuals Involved Counseled on Requirements to Perform Safety Related Blocking Reviews  +
• LIC-93-0182, Monthly Operating Rept for June 1993 for Fcs,Unit 1  +
• 05000346/LER-1982-005-03, /03L-0:on 820126,RE 2007,containment Area Radiation Control Monitor to Safety Features Actuation Sys Channel 4 Failed Low.Exact Cause Unknown.New Detector Placed in Svc.Failed Detector Returned to Vendor  +
• 05000265/LER-1993-010-03, :on 930422,DG 1/2 Cooling Water Pump Failed to Start,As Required,During Undervoltage Functional Test.Caused by Design Deficiency in Bus 28 Breaker Close Logic. Undervoltage Contact Added in Bus 28 Logic  +
• 05000269/LER-1981-009, Forwards LER 81-009/03L-0.Detailed Analysis Encl  +
• 05000353/LER-1989-014-02, :on 891202,unexpected Actuation of Primary Containment & Reactor Vessel Isolation Control Sys Occurred. Caused by Insufficient Guidance in General Plant Procedure. Appropriate Procedures Reviewed & Revised  +
• 05000219/LER-1976-031-01, /01T-0:on 761222,stack Gas Low Flow Alarm Sounded in Station Control Room.Caused by Ice Plug in Sample Line. Ice Plug Formed as Result of Failure in Heat Tracing of Line.Heat Tracing Replaced & Sample Line re-insulated  +
• 05000334/LER-1980-047-03, /03L-0:on 800805,during Exercise Mode,Emergency Diesel Generator Output Circuit Breaker Failed to Close. Caused by Relay Latch Inoperability,Due to Dirty Contacts. After Replacing Contact Block,Diesel Tested Satisfactorily  +
• 05000316/LER-2078-037, Letter from Indiana & Michigan Power Co to NRC Submitting Licensee Event Report (RO 50-316/78-037), Stating Corrective Actions Taken  +
• 05000281/LER-1996-002-02, :on 960408,EDG Fire Suppression Sys Declared Inoperable Due to Personnel Error.Submitted Station Deviation Rept  +
• 05000260/LER-1992-001-03, :on 920221,APRM a Failed to Trip on hi-hi Flux Flow Biased Trip Signal & Flow Converter Declared Inoperable.Caused by Degradation of Flow Converter Power Supply.Power Supply & Trip Relays Replaced  +
• 05000265/LER-2003-002, Regarding Self-Actuation of Main Steam Relief Valve Due to Excessive Leakage Through Pilot Valve Seat  +
• 05000324/LER-1987-007-02, :on 870504,RCIC Sys Turbine Steam Supply Inboard Primary Containment Isolation Valve (PCIV) & Pump Suppression Pool Suction Supply Inboard PCIV Auto Closed on Group 5 Isolation.Caused by Instrument Drift  +
• 05000316/LER-1978-037-01, /01T-1:on 780615,both Diesel Generators Placed in Condition Where Neither Engine Capable of Automatic Start. Operator Closed & Tagged Out Starting Air Pilot Valves on Wrong Diesel Generator.Operator Reprimanded  +
• 05000272/LER-1983-029-03, /03L-0:on 830617,control Room Operator Discovered Three RPI Channels Indicating Greater than Max Allowed Deviation in Tech Specs.Caused by Calibr Drift in Two Channels.Channels Recalibr  +
• 05000413/LER-1993-009, :on 930923,TS 3.0.3 Entered Due to Both Trains of CR Ventilation & Chilled Water Sys Being Inoperable. Caused by Less than Adequate Work Practices.Iae Personnel Involved in Event Received Addl Training  +