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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

• 05000206/LER-1990-010, :on 900424,determined That Max Normal & Max Abnormal Spent Fuel Pit Heat Loads Miscalculated in 1982 & Underestimated Actual Sys Heat Loads.Caused by Use of Wrong Capacity in Calculations.Spare Pump Installed  + (05:58:24, 11 January 2025)
• ML13331A419  + (05:58:26, 11 January 2025)
• ML13331A417  + (05:58:27, 11 January 2025)
• TAC:74792  + (05:58:28, 11 January 2025)
• ML13331A415  + (05:58:29, 11 January 2025)
• ML13331A412  + (05:58:31, 11 January 2025)
• ML13331A410  + (05:58:32, 11 January 2025)
• PNO-V-90-025, on 900515,operator Manually Tripped Reactor When Steam Generator Level Indicated Less than 5%.Caused by Lead Inadvertently Grounded While Connecting Electrical Leads for Valve Position Indicator.Design Change Planned  + (05:58:34, 11 January 2025)
• ML13331A406  + (05:58:35, 11 January 2025)
• ML13331A404  + (05:58:39, 11 January 2025)
• 05000206/LER-1990-009, :on 900413,testing of Six safety-related 1/2 Inch Valves in Secondary Chemical Feed Sys Not Performed. Caused by Inadequate Adminstrative Controls.Procedure for Inservice Testing Program Will Be Revised  + (05:58:41, 11 January 2025)
• 05000206/LER-1990-008, :on 900411,safety Injection Pump Breaker Declared Inoperable Which Resulted in Tech Spec 3.0.3 Entry. Caused by Holding Pawl Failure.Circuit Breaker Replaced & New Driving & Holding Pawls Will Be Installed  + (05:58:43, 11 January 2025)
• ML13331A401  + (05:58:45, 11 January 2025)
• ML13331A399  + (05:58:47, 11 January 2025)
• 05000206/LER-1990-004, :on 900223,determined That Such Leakage Could Be Inconsistent W/Basis of Tech Spec 3.1.4, Leakage & Leakage Detection Sys Relative to Extended Loss of All Ac Power.Caused by Inadequate Procedures  + (05:58:49, 11 January 2025)
• ML13331A397  + (05:58:51, 11 January 2025)
• ML13331A396  + (05:58:52, 11 January 2025)
• ML13331A395  + (05:58:54, 11 January 2025)
• ML13331A394  + (05:58:55, 11 January 2025)
• ML13331A393  + (05:58:57, 11 January 2025)
• ML13331A391  + (05:58:58, 11 January 2025)
• ML13331A389  + (05:58:59, 11 January 2025)
• 05000206/LER-1989-023-02, :on 890918,manual Reactor Trip Occurred Following Dropped Shutdown Bank Rods.Caused by Failed Contactor Coil & Blown Fuse.Contactor Coil & Fuse Replaced w/in-kind Parts  + (05:59:01, 11 January 2025)
• ML13331A386  + (05:59:03, 11 January 2025)
• 05000206/LER-1990-006, :on 900219,during Testing of Valve fail-safe Position Associated W/Pneumatic Control Valves for Chemical & Vol Control Sys,Discovered That Control Valve Failed to Open Upon Loss of Instrument Air.Cause Unknown  + (05:59:05, 11 January 2025)

• ML13331A384  + (05:59:07, 11 January 2025)

• ML13331A382  + (05:59:08, 11 January 2025)
• ML13331A381  + (05:59:09, 11 January 2025)
• 05000206/LER-1990-005, :on 900215,containment Spray Sys Flow Restricting Valve CV-518 Actuator Failure Alarm Annunicated.Caused by Accumulator Pressure Decreasing Due to Cold Weather.Pressure Indication Will Be Added  + (05:59:11, 11 January 2025)
• TAC:71349  + (05:59:12, 11 January 2025)
• ML13331A379  + (05:59:14, 11 January 2025)
• TAC:75883  + (05:59:14, 11 January 2025)
• ML13331A378  + (05:59:15, 11 January 2025)
• ML13331A377  + (05:59:16, 11 January 2025)
• 05000206/LER-1989-021, :on 890803,reactor Tripped on Low Flow Due to Instrument Cable Degradation.Caused by Polyethylene Insulation Becoming Brittle Due to Oxidation.Cable W/Loss of Insulation to Ground Replaced  + (05:59:18, 11 January 2025)
• ML13331A375  + (05:59:20, 11 January 2025)
• ML13331A374  + (05:59:21, 11 January 2025)
• 05000206/LER-1989-033, :on 900131,discovered That RCS Sample for Gross Activity Determination Not Taken Prior to Entry Into Mode 4 on 890624.Caused by Failure to Incorporate New Chemistry Procedure.Procedures Revised & Incorporated  + (05:59:23, 11 January 2025)
• ML13331A371  + (05:59:26, 11 January 2025)
• ML13331A369  + (05:59:27, 11 January 2025)
• ML13331A366  + (05:59:28, 11 January 2025)
• 05000206/LER-1990-003, :on 900126,discovered That Tech Spec 4.15.8 Not Fully Implemented as Required by Newly Issued Amend Which Required Implementation by 891215.Caused by Personnel Error. Station Procedure SO123-III-6.6 Revised  + (05:59:30, 11 January 2025)
• ML13331A363  + (05:59:31, 11 January 2025)
• PNO-V-90-009, on 900302,earthquake Occurred in Southern California.Quake Felt at Plant But Did Not Trigger Recording Instruments.No Further Licensee Actions Planned.Preliminary Notification Issued for Info Only  + (05:59:33, 11 January 2025)
• 05000206/LER-1990-002, :on 900124,required Sample/Analysis Not Performed When Power Change Exceeded 15% within 1 H.Caused by Personnel Error.Individual Reprimanded & Event Discussed w/on-shift Operations Personnel  + (05:59:35, 11 January 2025)
• TAC:75454  + (05:59:36, 11 January 2025)
• ML13331A359  + (05:59:38, 11 January 2025)
• 05000206/LER-1990-001, :on 900120,dc Bus Feeder Breakers Opened During Dc Ground Troubleshooting,Resulting in Violation of Tech Spec 3.3.1.Ground Attributed to Degraded Cable Installation & Corrosion Conduit Joint.Ground Cleared  + (05:59:40, 11 January 2025)
• ML13331A356  + (05:59:42, 11 January 2025)
• 05000206/LER-1989-032, :on 890103,discovered That Tech Spec 18-month Insp of Former Security Uninterruptible Power Supply Battery D-20 Not Performed Following Installation of Temporary Mod. Mod Procedure Enhanced  + (05:59:44, 11 January 2025)
• 05000206/LER-1989-030, :on 891228,determined That Previous Evaluations of post-loss of Cooling Accident ECCS Recirculation Flow Incorrectly Credited.Caused by Programmatic Weaknesses Noted in Util 881003 Submittal.Valve Closed  + (05:59:46, 11 January 2025)