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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

• 05000339/LER-1991-009-03, :on 910920,main Feed Regulating Valve B Closed Due to Driver Card Failure,Causing Reactor Trip & Safety Injection.Caused by Malfunction of Steam Dump Control Sys. Driver Card Replaced & Signal Reset  + (07:54:39, 26 May 2025)
• 05000296/LER-1983-038-03, /03L-0:on 830624,while Performing SI 4.2.F-6 (Suppression Chamber Water temp),TI-64-55A Temp Indicator Found Out of Tolerance.Cause Not Stated.Failure Determined to Be Random Occurrence  + (07:54:41, 26 May 2025)
• 05000368/LER-1991-015-01, :on 910912,Coltec Industries Advised Util That Vendor Analysis of Coolant Cross Flow Identified Potential That EDGs Unable to Provide Electrical Output.Valve Closed to Isolate Flow Path.Also Reported Per Part 21  + (07:54:46, 26 May 2025)
• ML20085D716  + (07:54:47, 26 May 2025)
• 05000339/LER-1983-052-03, /03L-0:on 830628,individual Rod Position Indication for Channels F-04,D-10 & M-04 Deviated from Group Demand Position by Greater than 12 Steps.Caused by Instrument Drift.Channels Recalibr  + (07:54:48, 26 May 2025)
• 05000254/LER-1991-018-01, :on 910914,125-volt Dc Ground Isolated & RCIC Declared Inoperable to Repair Ground.Caused by Failure of EG-M Control Box.Control Box Replaced & RCIC Successfully Tested  + (07:54:54, 26 May 2025)
• 05000498/LER-1991-019, :on 910905,reactor Coolant Sys Leak Rate Exceeded Tech Spec Limits.Event Resulted from Damaged Valve Packing.Valve Repacked & Returned to Operable Status.W/  + (07:58:49, 26 May 2025)
• 05000325/LER-1995-009, :on 950512,surveillance Tracking Sys Was Not Updated to Reflect Moving Requirement to New Procedure. Caused by Inadequate training.PT-08.1.3d Was Successfully Performed on Both Units  + (07:59:26, 26 May 2025)
• 05000325/LER-1991-021, :on 910728,discovered That Gross Megawatt Recorder Indicated Higher than Expected for 100% Power Operations.Caused by Failed Temp Element & Removal of Table of Values.Temp Element Will Be Replaced.W/Undated Ltr  + (07:59:33, 26 May 2025)
• 05000334/LER-1991-024, :on 910727,generation of Feedwater Isolation & Letdown Isolation Signals Occurred.Caused by Procedural Deficiencies.Loop Calibration Procedure Revised & Maint Procedures Reviewed  + (07:59:57, 26 May 2025)
• IR 05000602/1991001  + (08:00:31, 26 May 2025)
• 05000461/LER-1995-002, :on 950314,LLRT Failures of FW Containment Isolation Valves Resulted in Total Leakage Rates Greater That TS & 10CF50,App J Limits.Valves Opened & Inspected & Elastomeric Soft Valve Seats on Listed Valves Replaced  + (08:00:32, 26 May 2025)
• 05000325/LER-1995-011, :on 950519,manual Reactor Protection Sys Trip Initiated Due to Decreasing Condenser Vacuum.Unit 1 & 2 CW Intake Pumps Traveling Screens Cleaned & Monitored  + (08:00:35, 26 May 2025)
• 05000289/LER-1978-013, Forwards LER 78-013/01T-0  + (08:00:40, 26 May 2025)
• RBG-35-335, Responds to NRC Ltr Re Violations Noted in Insp Rept 50-458/91-13.Corrective Actions:Personnel Notified Through Meetings of Responsibility to Be Aware of Radiologically Controlled Areas  + (08:00:58, 26 May 2025)
• A830016, Forwards Addl Fee for 821124 Application for Tech Spec Change Approved as Amend 82,in Response to NRC 830615 Request  + (08:02:07, 26 May 2025)
• 05000272/LER-1983-026-03, /03L-0:on 830530,containment Fan Coil Unit (Cfcu) 17 Svc Water Flow Observed Below Tech Specs.Cfcu Declared Inoperable.Caused by Valve 15SW57 Being Plugged W/Shells & Debris from Cleaning of Svc Water Sys  + (08:02:26, 26 May 2025)
• 05000483/LER-1995-003, :on 910520,TS 4.3.2.1-7.b Surveillance of Refueling Water Storage Tank Protection Loop Was Missed Due to Cognitive Personnel Error.Comprehensive Review of Other Surveillance Packages for Other Channels Was Made  + (08:02:56, 26 May 2025)
• TXX-9112, Supplemental Significant Deficiency Rept CP-87-48 Re Clamps Reversed on ladder-type Cable Trays.Initially Reported on 870821.Unambiguous Clamp Requirements Established Re Design Criteria,Design Basis Documents & Installation Specs  + (08:03:46, 26 May 2025)
• ML20084U358  + (08:03:52, 26 May 2025)
• ML20084U333  + (08:03:54, 26 May 2025)
• ML20084T102  + (08:05:32, 26 May 2025)
• 05000325/LER-1995-007, :on 950511,SRV Tested at Wyle Labs Exceeded TS Setpoint Limits.Caused by O Induced Pilot disc-to-seat Bonding.Replaced SRV Pilot Valve Assemblies W/Certified Spares Prior to Startup of Unit 1  + (08:05:49, 26 May 2025)
• 05000499/LER-1995-002, :on 950131,pressurizer Level Channel LT-0467 Was Considered Inoperable Due to Use of Incorrect Calibr Correction Factor.Provided up-to-date Controlled Scaling Document for Affected Pressurizer Level Transmitter  + (08:05:57, 26 May 2025)
• TAC:51625  + (08:06:10, 26 May 2025)

• L-95-012, Provides Security Plan Revs for Pbnpsp C-2.0 & Pbnpsp Figure I. Encl Withheld  + (08:06:20, 26 May 2025)

• TAC:49061  + (08:07:12, 26 May 2025)
• ML20084R850  + (08:07:36, 26 May 2025)
• 05000249/LER-1975-024, AO 50-249/75-24:on 750426,during Routine Calibr of HPCI Area Temp Sensors,Setpoints on 12 of 16 Temp Sensors Found Above Tech Spec Limit.Caused by Unsuitable Existing Temp Sensors for First Operation Surveillance Type Operation  + (08:09:21, 26 May 2025)
• 05000249/LER-1975-025, :on 750428,during Routine Insp,Two Hydraulic Piping Restraints Inoperable.Cause Unknown.Inoperable Snubbers Will Be Replaced Before End of Outage  + (08:09:32, 26 May 2025)
• ML20084Q487  + (08:09:45, 26 May 2025)
• 05000249/LER-1975-026, AO 50-249/75-26:on 780509,during Discharge test,24/48 Volt Dc Batteries Failed to Deliver Rated ampere-hour Capacity. Caused by Six Bad Cells in One Battery & Four Bad Cells in Other.Deteriorated Cells Will Be Replaced  + (08:10:27, 26 May 2025)
• ML20084P982  + (08:10:32, 26 May 2025)
• 05000249/LER-1975-027, :on 750515,cracks Observed on Five of Eight Header Pipe & One of Four Thermal Sleeve to Junction Box Welds.Caused by Design of Spargers Susceptible to Flow Induced Vibration.Spargers Will Be Replaced  + (08:10:37, 26 May 2025)
• 05000249/LER-1975-028, AO 50-249/75-28:on 750522,main Steam Line Area Temp Sensors 261-16B,261-17 A-D & 261-18D Found W/Setpoints Above Tech Spec Limit.Caused by Misapplied Switches.Switches Reset within Tech Spec Limit  + (08:10:40, 26 May 2025)
• 05000249/LER-1976-016, :on 760918,during Local Leak Rate Testing of Drywell & Torus Vent Isolation Valves,Valve 3-1601-23 Exhibited Leak Rate Above Tech Spec Limit.Caused by Packing Failures.Packing Bolts Tightened  + (08:10:52, 26 May 2025)
• 05000249/LER-1976-020, :on 760922,during Refueling Outage Local Leak Rate Testing,Vol Bounded by Main Steam Line Drain Valves 3-220-1 & 2 Exhibited Leak Above Tech Specs Limit.Probably Caused by Deteriorated Pressure Seal Ring  + (08:11:02, 26 May 2025)
• 05000249/LER-1976-022, :on 760929,during Prerequisite Testing for Refueling Outage LPCI Logic Surveillance,Dpis 261-34A Failed to Trip.Caused by Roller Cam Being Jammed by Microswitch Actuating Arm.Switch Repaired  + (08:11:04, 26 May 2025)
• 05000249/LER-1976-028, :on 761018,after Preliminary Testing & Subsequent Insp by vendor,250 Volt Battery Found in Degraded Condition. Caused by Prior Battery Charger Problems.Battery Replaced W/Larger Capacity Unit  + (08:11:18, 26 May 2025)
• ML20084P303  + (08:11:36, 26 May 2025)
• ML20084N727  + (08:12:24, 26 May 2025)
• 05000249/LER-1975-046, :on 751207,during Reactor Shutdown for Maint, Snubber 25 Found Inoperable Due to Insufficient Amount of Hydraulic Fluid.Caused by Deteriorated Seals.Snubber Zirc Fitting Replaced  + (08:12:33, 26 May 2025)
• 05000249/LER-1975-047, :on 751211,during Surveillance Testing,Unit 3 Diesel Generator Would Not Accept Load Above 100 Kw.Caused by Loose Locknut on Shutdown Solenoid.Locknut Tightened. Diesel 6 Month Insp Procedure Revised  + (08:12:36, 26 May 2025)
• 05000249/LER-1975-048, :on 751222,during Instrument Surveillance,Hpci Flow Switch DPIS 3-2353 Tripped Above Tech Spec Limit.Caused by Misapplication of Switch.Program to Modify Instruments in Progress  + (08:12:38, 26 May 2025)
• 05000249/LER-1975-049, :on 751223,during steady-state Operation,Channel a Refueling Floor Radiation Monitor Failed Downscale.Caused by Cable Connector Failure.Connector Replaced  + (08:12:40, 26 May 2025)
• 05000249/LER-1976-001, :on 760104,during Weekly Surveillance Test,Closure of Control Valve 2 Failed to Initiate Reactor Half Scram. Caused by Malfunctioning Fast Acting Solenoid Valve.Work Request Issued to Replace & Test Solenoid  + (08:12:42, 26 May 2025)
• 05000249/LER-1976-002, :on 760107,during Routine Insp,Eccs Fill Jockey Pump Found Inoperable.Caused by Insufficient Lubrication. ECCS Jockey Pump Coupling Will Be Added to Lubrication Program  + (08:12:44, 26 May 2025)
• 05000249/LER-1976-004, :on 760303,during Surveillance Testing, Diesel Generator Could Not Be Loaded from Control Room Due to Loose Governor Control Wire.Apparently Caused by Vibration.Event Under Review  + (08:12:47, 26 May 2025)
• 05000318/LER-1981-040-03, During Surveillance Testing,Msiv 22 Closing Time Exceeded Tech Spec Limit.Caused by Nonsteel Ring Binding Stem.Ring Replaced.Purchase Spec Revised  + (08:13:31, 26 May 2025)
• 05000317/LER-1981-024-03, During Routine Shutdown, MSIV 12 Closing Time Exceeded Tech Spec Limit.Caused by Nonsteel Ring Binding Stem.Ring Replaced.Purchase Spec Revised  + (08:13:35, 26 May 2025)
• 05000318/LER-1981-007-03, MSIVs 21 & 22 Failed to Shut within Required Time Limit.Caused by Galled Stems of Packing Junk Ring.Rings Replaced  + (08:13:38, 26 May 2025)