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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

• 05000414/LER-1994-001-06, :on 940517,determined That Tube Exceeded 40 Percent TS Thru Wall Limit & Required Plugging Due to Less than Adequate Work Practices & Error Detection Practices. ECT Data from 2EOC5 Was Retrieved & Reanalyzed  + (15:31:47, 26 May 2025)
• 05000416/LER-1982-126-99, /99L-0:on 821026,several Fire Dams & Penetration Seals Broken While Replacing Shorted Cable Running from Control Room to Computer Room.Fire Dams Restored.Work Still Progressing on Penetration Seals.Update by 830202  + (15:31:50, 26 May 2025)
• 05000366/LER-1981-084-03, N005 HPCI Steam Line Delta P Switch Found to Actuate at 204.5 Inches Water. Caused by Setpoint Drift.Barton Model 288A Switch Recalibr, Tested & Returned to Svc  + (15:31:59, 26 May 2025)
• 05000366/LER-1981-084, Forwards Updated LER 81-084/03X-1  + (15:32:02, 26 May 2025)
• 05000458/LER-1994-012, :on 940522,discovered Air from RB Was Leaving Containment Through Ifts Tube Drain Line to FB Due to Inadequate Design.Administrative Controls Were Initiated to Close Ifts Drain Tank Shutoff Valve  + (15:32:05, 26 May 2025)
• 05000416/LER-1982-126, Forwards LER 82-126/99L-0  + (15:32:06, 26 May 2025)
• 05000324/LER-1982-124-01, /01T-0:on 821121,quick Start Testing of Diesel Generators 1,2 & 4 Not Performed within Required 2-h Period. Caused by Misinterpretation of Plant Standing Instructions. Quick Starts Performed.Instructions Revised  + (15:32:08, 26 May 2025)
• 05000364/LER-1982-046-03, /03L-0:on 821028,snubber 2RC-R50A Determined to Be Inoperable When Found W/Damaged & Leaking O-ring.Snubber Rebuilt,Satisfactorily Tested & Reinstalled.No Evidence of Damage to Piping Supports or Restraints Near Snubber  + (15:32:10, 26 May 2025)
• TXX-9101, Monthly Operating Rept for Dec 1990 for Comanche Peak Steam Electric Station Unit 1  + (15:32:14, 26 May 2025)
• 05000259/LER-1982-089-03, /03L-0:on 821103,during Primary Containment Purge Sys Filter Pressure Drop Test,Primary Purge Sys Failed to Achieve Required Flow Rate.Caused by Clogged HEPA Filters. New Filters Installed & Satisfactorily Tested  + (15:32:22, 26 May 2025)
• ML20070A430  + (15:32:36, 26 May 2025)
• 05000321/LER-1980-098-03, While Performing Suppression Chamber to Drywell Vacuum Breaker Sys Operability Procedure,One Closed Indication Lamp on Vacuum Breaker H Failed to Extinguish  + (15:32:52, 26 May 2025)
• 05000321/LER-1980-098, Forwards Updated LER 80-098/03X-1  + (15:32:56, 26 May 2025)
• CAC:1259  + (15:33:38, 26 May 2025)
• TAC:71889  + (15:33:56, 26 May 2025)
• TAC:M83947  + (15:34:04, 26 May 2025)
• B10553, Interim Deficiency Rept Re Failure of Motor Pinion Gear Shear Keys in Limitorque Model SBO (SD-25) Motor Operated Valves.Initially Reported on 820804.Vendor Info Inconclusive.Evaluation Continuing  + (15:34:37, 26 May 2025)
• 05000334/LER-1981-077-03, Increased Radiation Levels in Auxiliary Bldg Discovered.Caused by Crack in Welded Pipe Connection Joining Two 1A Degassifier Recovery Hx.Crack Due to Thermal Stress Fatigue  + (15:34:59, 26 May 2025)
• 05000334/LER-1981-077, Forwards Updated LER 81-077/03X-1  + (15:35:05, 26 May 2025)
• 05000334/LER-1981-078-03, Discovered Leakage Through Containment Airlock Inner Door Seals.Inner Door Sealing Surfaces & O-rings Wiped Down & Regreased.Design Change Procedure Approved on 820605  + (15:35:11, 26 May 2025)
• 05000334/LER-1981-078, Forwards Updated LER 81-078/03X-1  + (15:35:15, 26 May 2025)
• 05000249/LER-1982-008-03, While Performing Refuel Surveillance Dis 2300-7,calibr Testing Discovered HPCI Temp Switches 2371A,2372A,2370C & 2370D Above Tech Spec Limit. Caused by Vibration Loosening Set Screws  + (15:35:30, 26 May 2025)
• 05000387/LER-1982-043-01, /01T-0:on 821116,engineering Review Revealed Failure of Single Component Could Defeat Overload Detection & Protection Devices for Containment Penetration Carrying Power Cables for Reactor Recirculation Pumps  + (15:35:32, 26 May 2025)
• 05000249/LER-1982-008, Forwards Updated LER 82-008/03X-1  + (15:35:34, 26 May 2025)
• 05000387/LER-1982-042-01, /01T-0:on 821116,review of Response to Internal Incident Rept Revealed That Grab Samples Not Taken at Required Frequency While RHR Svc Water Sys Monitor Out of Svc.Caused by Personnel Error  + (15:35:37, 26 May 2025)

• NRC-93-0043, Withdraws Commitment Re Voluntary Reporting of Valid Initiations of non-interruptible Air Sys,Per NRC Insp Rept 50-341/89-21  + (15:36:24, 26 May 2025)

• ML20069P151  + (15:36:42, 26 May 2025)
• 05000237/LER-1982-042-01, During Normal Operation, Following Torus Hi/Lo Level Alarm,Sightglass Isolation & Vent Valves Reported Open W/No Indication of Excess Makeup. Caused by Operator Error.Valves Locked Closed  + (15:38:15, 26 May 2025)
• ML20069M413  + (15:38:50, 26 May 2025)
• ML20069M271  + (15:39:10, 26 May 2025)
• 05000334/LER-1979-023-03, Diesel Generator Output Breaker 1 Failed to Close When Control Switch Actuated & Alarm Indicated Air Start Motor 1 Failure to Start Generator.Caused by Sticking Pinion.Pinion Assembly Cleaned  + (15:39:23, 26 May 2025)
• 05000338/LER-1983-016-03, /03L-0:on 830323,w/unit at 100% Power,Stiffener Support Not Added to Bus Svc Water Auxiliary Relay Panel J Per Design Change 80-S45I.Caused by Personnel Error. Stiffener Support Added  + (15:39:51, 26 May 2025)
• 05000289/LER-1983-006-03, /03L-0:on 830320,no Flow Existed Through Hydrogen & Oxygen Rotameters of Waste Gas Sys Analyzer.Caused by Dirt Blockage in Regulator & Flow Setting.Pump Discharge Pressure Regulator Setting Raised  + (15:39:56, 26 May 2025)
• 05000289/LER-1983-010-03, /03L-0:on 830321,waste Gas Sys Hays Gas Analyzer Alarm Indicated Incorrect Concentration of Oxygen.Caused by Dirty Amplifier Low Channel Gain Potentiometer & Switch Contacts.Components Cleaned  + (15:39:58, 26 May 2025)
• 05000289/LER-1982-014-03, /03L-0:on 821005,plant Personnel Identified Defective Fire Barrier Penetration Seal.Silicone Foam Seal Matl Separated from Edges of Barrier After Curing.Fire Watch Posted & Fire Barrier Penetration Seal Repaired  + (15:40:07, 26 May 2025)
• 05000387/LER-1982-037-01, /01P-0:confirms 821101 Telcon Re Exceeding Number of Allowable Cycles Reactor Recirculation Pump Discharge Valves Permitted,Per SER Suppl 3.License Amend Will Be Requested to Allow 25 Cycles  + (15:40:09, 26 May 2025)
• 05000321/LER-1994-006-01, :on 940515,HPCI Sys Removed from Svc to Repair Flow Controller 1E41-R612.Caused by Component Failure.Failed Parts Replaced & Flow Controller Satisfactorily Tested in Modes  + (15:40:12, 26 May 2025)
• 05000331/LER-1994-008, :on 940517,determined That Testing Had Not Been Performed at Required Surveillance Frequency for Reactor High Pressure Scram Pressure Switch.Caused by Inadequate Tracking.Appropriate Half Scram Inserted  + (15:40:18, 26 May 2025)
• ML20069L885  + (15:40:20, 26 May 2025)
• 05000293/LER-1982-048-03, /03L-0:on 821006,during Qad Audit,Fire Door 153 Found Closed W/Latch Mechanism Depressed W/Tape.Caused by Personnel Error.Special Meeting Conducted on 821029 Re QA Requirements & QA Significant Deficiency Rept Issued  + (15:40:22, 26 May 2025)
• 05000416/LER-1994-005-02, :on 940517,discovered That There Was No Clear Guidance to Close Containment Isolation Valves for Drywell Fission Product Monitor & PASS When Required post-accident. Minor Change Package Generated  + (15:40:25, 26 May 2025)
• 05000387/LER-1982-036-01, /01P-0:on 821101,HPCI Isolation High Steam Line Delta Pressure Detection Instrument Settings Found Above Allowable Value Preventing Isolation Valves from Functioning.Cause Not Stated  + (15:40:32, 26 May 2025)
• ML20069L828  + (15:40:39, 26 May 2025)
• 05000348/LER-1994-001, :on 940521,1A Component Cooling Pump (B-train) Failed to Start.Caused by Supply Breaker Prop Latch Spring Detachment.Esf Related 4160 Volt Breaker on Both Units Verified as Being Properly Charged  + (15:40:42, 26 May 2025)
• TAC:42114  + (15:40:50, 26 May 2025)
• ML20069L752  + (15:40:52, 26 May 2025)
• 05000255/LER-1983-021-03, /03L-0:on 830326,sample from Safety Injection Tank D Showed Boron Concentration Below 1,720 Ppm Tech Spec Limit.Caused by Minor Leakage Past Loop Check Valve & Safety Injection Tank Check Valve or Fill & Drain Valve  + (15:40:53, 26 May 2025)
• ML20069L748  + (15:40:55, 26 May 2025)
• 05000316/LER-1983-038-03, /03L-0:on 830405,four Logic Test Positions Tested Unsatisfactorily During solid-state Protection Sys (Train a) Surveillance Test.Caused by Failed Universal Card A-304. Logic Card Replaced.Sys Operability Verified  + (15:40:56, 26 May 2025)
• ML20069L742  + (15:40:58, 26 May 2025)
• 05000316/LER-1983-037-03, /03L-0:on 830323,Fire Door 386 Found Unlatched During Normal Operation.Caused by Insufficient Closer Mechanism Force.Door Closer Mechanism Adjusted  + (15:41:01, 26 May 2025)