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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

• 05000254/LER-1994-016-03, :on 941116,while Repairing 1/2 EDG CW Pump Bedplate,Hanger (H) 1052-M-303 Noted as Being Unloaded. Cause Unknown.Rod Hanger re-adjusted,units 1 & 2 EDG CW Pumps Reviewed & Rev of Applicable Procedures Made  + (11:24:44, 26 May 2025)
• ML20079B285  + (11:24:52, 26 May 2025)
• TAC:76131  + (11:25:07, 26 May 2025)
• ML20079B046  + (11:25:27, 26 May 2025)
• 05000333/LER-1994-009-01, :on 941129,partial Invalid Primary Containment Isolation as Result of Personnel Error During Electrical Bus Power Source Transfer.Operations Personnel Restored Sys to Normal in Accordance W/Plant Procedures  + (11:25:28, 26 May 2025)
• 05000368/LER-1991-013-01, :on 910512,fire Watches Released from Inoperable Fire Barriers Prematurely.Caused by Inadequate Documentation Re Posting Requirements.Approval by Fire Protection Required Prior to Release in Future  + (11:25:33, 26 May 2025)
• 05000382/LER-1991-007-01, :on 910510,review of Calculation EC-E89-007 Revealed That Electronic Sensor Current Transformer Rating on 480-volt safety-related Bus Incorrect.Caused by Failure to Verify Amperage Rating.New Bus Installed  + (11:25:38, 26 May 2025)
• 05000334/LER-1991-013, :on 910510,pressurizer Code Safety Valve Lift Setting Discovered Less than Tech Spec Limits.Caused by Failure of Valves to Lift within Setpoint.Beaver Valley Test Procedure Criteria Reevaluated  + (11:25:40, 26 May 2025)
• 05000482/LER-1991-006, :on 910512,auxiliary Feedwater Actuation & Control Room Ventilation Isolation Occurred When Power Supply in ESF Actuation Sys Failed.Caused by Faulty 15 Volt Power Supply.Power Supply Replaced  + (11:25:42, 26 May 2025)
• 05000333/LER-1991-006-01, :on 910507,manual Reactor Shutdown Occurred Due to Inoperability of Both Low Pressure Coolant Injection Subsystems.Caused Mechancial Failure of One Valve in Each of Two Sys.Root Cause Investigation Started  + (11:25:48, 26 May 2025)
• 05000413/LER-1991-012, :on 910505,air Sucked from Ice Condenser During Core Alterations Due to Deficient Communication Between Cro & Ice Machine Operator.Ice Making & Charging Sys Procedure OP/O/B/6200/16 Will Be Revised  + (11:25:53, 26 May 2025)
• 05000414/LER-1991-007-01, :on 910510,tech Spec 3.0.3 Entered as Result of Both Trains of Auxiliary Building Ventilation Filtered Sys Being Inoperable.Caused by Inappropriate Action Due to Lack of Attention to Detail  + (11:25:55, 26 May 2025)
• 05000354/LER-1991-008-01, :on 910507,reactor Scram on Low Water Level Occurred.Caused by Personnel Error.Counseling Controls Technician Re self-verification & Attention to Detail & Implementing Design Change  + (11:25:59, 26 May 2025)
• 05000259/LER-1991-006-02, :on 910507,unplanned ESF Actuation Occurred When Control Room Emergency Ventilation Sys Initiated. Caused by Design Which Made It Difficult to Perform Work. Util Will Evaluate Need for Design Change  + (11:26:01, 26 May 2025)
• 05000263/LER-1991-010, :on 910507,reaction Protection Sys Actuation Occurred.Caused by Spurious Increase of Intermediate Range Monitor Signals.Investigation Initiated.Procedures Revised  + (11:26:02, 26 May 2025)
• 05000374/LER-1991-001-01, :on 910110,high Pressure Core Spray Pump Room & Turbine Bldg Fire Rated Barrier Discovered Degraded During Insp.Caused by Failure to Install Fire Barriers.Establish Hourly/Continuous Fire Watch  + (11:26:04, 26 May 2025)
• 05000425/LER-1991-007-02, :on 910507,automatic Reactor Trip Occurred. Caused by Generator Loss of Field.Design Change Implemented to Allow Plant Computer to Monitor Status of Generator Field Shorting Breaker  + (11:26:06, 26 May 2025)
• 05000325/LER-1991-013, :on 910507,coincident Hpic/Rcic Discovered Inoperable.Caused by Loss of RCIC High Steam Flow Transmitter.Tightening of Leaking Fitting & Venting & Filling of Sensing Lines Performed  + (11:26:11, 26 May 2025)
• 05000325/LER-1991-012, :on 910503,unexpected ESF Actuation Occurred While Hanging Clearance.Caused by Personnel Error.Involved Clearance Ctr Personnel Counseled & Review of Event Conducted in Operations Real Time Training  + (11:26:13, 26 May 2025)
• 05000354/LER-1991-009-01, :on 910508,full Reactor Protection Sys Actuation Occurred Due to Electronic Spiking of Intermediate Range Monitor G.Caused by Equipment Malfunction.Monitor Replaced Prior to Plant Return to Power  + (11:26:14, 26 May 2025)
• 05000277/LER-1991-011-01, :on 910508,discovered That ST 16.2.1, Fire Sys Weekly Check Inadvertently Deferred Beyond TS Time Limit. Caused by Misleading Test Frequency Listed on Test.Test Revised & Event Reviewed W/Personnel  + (11:26:16, 26 May 2025)
• 05000366/LER-1991-014, :on 910508,discrepancy Noted Between TS 3.9.10 & Design of High Density Fuel Storage Sys Racks in Spent Fuel Pool.Caused by Less than Adequate Design Change Safety Evaluation.Change to TS 3.10.D Will Be Sent  + (11:26:18, 26 May 2025)
• 05000271/LER-1994-016, :on 941130,unisolable Svc Water Piping Leaks Resulting in Inoperability of Ws Subsystems & Alternate Cooling Subsystem.Ut Insps Have Been Completed on Similar Piping in SW Sys W/O Other Problems  + (11:26:19, 26 May 2025)
• 05000339/LER-1991-002-03, :on 910514,automatic Start of 2H Emergency Diesel Generator Occurred Caused by de-energization of 2H Emergency Bus.Caused by Personnel Error.Abnormal Procedure Loss of Electrical Power Entered  + (11:26:21, 26 May 2025)
• 05000298/LER-1991-002, :on 910324,reactor Water Cleanup Isolation Occurred Due to High Sys Temp.Caused by Inadequate Design. Design Process for Plant Changes Strengthened Since Design Completed  + (11:26:23, 26 May 2025)

• 05000354/LER-1991-007-01, :on 910505,filtration,recirculation & Ventilation Sys Units Discovered Inoperable During Surveillance Test.Caused by Blown Heater Control.Blown Fuses Replaced & Unit Returned to Operable Status  + (11:26:25, 26 May 2025)

• 05000423/LER-1991-012, :on 910503,spurious Control Bldg Isolation Signals Occurred.Caused by Radiation Monitor Power Supply Failure.Single Channel Area Monitor Board Replaced & Satisfactorily Tested  + (11:26:27, 26 May 2025)
• 05000293/LER-1994-004, :on 940803,automatic Primary Containment Isolation Control Sys Actuation Occurred.Caused by Improper Alignment of Control Valve Fulcrum Alignment Pins.Vents Added to Oil Sump & Sys Oil Pressure Reduced  + (11:26:36, 26 May 2025)
• ML20079A708  + (11:26:41, 26 May 2025)
• ML20079A629  + (11:26:47, 26 May 2025)
• 05000313/LER-1995-001-01, :on 950127,nonconstructive Input of CFT Initial Conditions & Nonconstructive Data Handling by Computer Codes Occurred,Due to Human Error & Use of Unsophisticated Codes. Steps Initiated to Reduce LOCA Alarm Limits  + (11:26:48, 26 May 2025)
• ML20079A614  + (11:26:50, 26 May 2025)
• ML20079A602  + (11:26:51, 26 May 2025)
• ML20079A600  + (11:26:53, 26 May 2025)
• 05000382/LER-1994-018-01, :on 941123,liquid Radwaste Released from Waste Condensate Tank a W/Incorrect & non-conservative Permit Release Setpoint on Liquid Waste Radiation Monitor.Caused by Human Error.Appropriate Personnel Counseled  + (11:26:57, 26 May 2025)
• ML20079A482  + (11:27:04, 26 May 2025)
• ML20079A272  + (11:27:13, 26 May 2025)
• ML20079A256  + (11:27:15, 26 May 2025)
• ML20079A246  + (11:27:16, 26 May 2025)
• ML20079A238  + (11:27:18, 26 May 2025)
• ML20079A178  + (11:27:23, 26 May 2025)
• ML20079A166  + (11:27:24, 26 May 2025)
• ML20079A158  + (11:27:27, 26 May 2025)
• ML20079A149  + (11:27:28, 26 May 2025)
• ML20079A121  + (11:27:33, 26 May 2025)
• ML20079A107  + (11:27:34, 26 May 2025)
• ML20079A091  + (11:27:36, 26 May 2025)
• ML20079A077  + (11:27:37, 26 May 2025)
• ML20079A069  + (11:27:39, 26 May 2025)
• ML20079A045  + (11:27:41, 26 May 2025)
• ML20079A024  + (11:27:42, 26 May 2025)