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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-1993-021, :on 931201,discovered That Fis 1-1360-7 Was Found to Have Failed Full Scale Due to Equipment Malfunctions.Switch Was Replaced & Both Units Were Calibrated to Work within Pressure Range  + (15:30:20, 26 May 2025)
• 05000289/LER-1994-004-01, :on 940601,discovered That Three Control Rods Exceeded Trip Insertion Time Limit of 1.666 Seconds Due to Postulated Deposits.Four Thermal Barriers Were Replaced W/New Thermal Barrier  + (15:30:25, 26 May 2025)
• ML20070B348  + (15:30:32, 26 May 2025)
• ML20070B336  + (15:30:34, 26 May 2025)
• ML20070B322  + (15:30:36, 26 May 2025)
• ML20070B309  + (15:30:41, 26 May 2025)
• ML20070B295  + (15:30:43, 26 May 2025)
• 05000254/LER-1993-011-02, :on 930721,discovered That 4KV Breaker 68, Feeding 1B Core Spray Pump Motor Was Open & Discharged Due to Personnel Error.Procedure Change Has Been Processed to Standardize Window Colors Part of PM Program  + (15:30:48, 26 May 2025)
• ML20070B196  + (15:30:53, 26 May 2025)
• 05000265/LER-1994-009-03, :on 940522,primary Containment Interlock Doors Defeated to Release Personnel Trapped Inside.Caused by Malfunction of Interlock Door Linkage.Corrective Actions Will Be Determined During Insp During Outage  + (15:30:56, 26 May 2025)
• 05000325/LER-1982-129-03, /03L-0:on 821103,suppression Chamber Water Temp Recorder 1-CAC-TR-778 on Remote Shutdown Panel Showed Indications of Temps But Did Not Record.Caused by Worn Print Ink Wheel Not Advancing Due to Adjustment Problems  + (15:30:59, 26 May 2025)
• 05000395/LER-1982-035-03, /03L-0:on 821103,plant Entered Mode 3 W/Boric Acid Tank B Level Instrument LI-163A Inoperable.Caused by Instrument Out of Calibr Due to Zero Shift on Transmitter. Instrument Recalibr  + (15:31:01, 26 May 2025)
• 05000366/LER-1980-100-01, During Testing,Switches N002A - D & N011A - D Actuated Above Tech Specs Limit of Plus/Minus 2 Psig.Caused by Setpoint Drift.Switches Recalibr,Tested & Returned to Svc  + (15:31:03, 26 May 2025)
• 05000395/LER-1982-034-03, /03L-0:on 821103,during Mode 4,radiation Monitor RM-G19C (Main Steam Line C Monitor) Failed to High Radiation Alarm Setpoint.Caused by Moisture Penetration of Cable Connectors Between Detector & Preamp.Detector Replaced  + (15:31:07, 26 May 2025)
• 05000440/LER-1994-013, :on 940518,noted That LPCI C Loop Injection Valve Was Closed Due to Program Weakness.Suspended Core Alternations from Time Valve Was Discovered Until Compliance W/Ts 3.6.4 Action Requirement  + (15:31:09, 26 May 2025)
• 05000366/LER-1980-100, Forwards Updated LER 80-100/01X-1  + (15:31:10, 26 May 2025)
• 05000335/LER-1982-052-03, /03L-0:on 821101,during Test to Check Ability of 1c Auxiliary Feedwater Pump to Take Suction,Condensate Storage Tank MV-09-11 Failed to Open.Caused by Torque Limiter Switch Malfunction.Switch Readjusted  + (15:31:17, 26 May 2025)
• 05000366/LER-1982-124-03, /03L-0:on 821102,during Administrative Review, Temporary Changes Made to Arm Calibr Procedure Not Reviewed & Signed within Required 14 Days.Caused by Personnel Error. One Dept Assigned Responsibility for Tracking Changes  + (15:31:21, 26 May 2025)
• 05000366/LER-1980-019-03, Erroneous Reading on Drywell Hydrogen Dioxide Analyzer a Recorder Disclosed. Caused by Diaphragm Failure in Analyzer Vacuum Pump. Diaphragm Replaced.Analyzer Calibr & Functionally Tested  + (15:31:25, 26 May 2025)
• 05000366/LER-1980-097-03, While Performing HPCI Steam Line Delta P Instrument Ft&C Procedure,Flow Switch N004 Setpoints Found to Be Out of Tolerance.Caused by Setpoint Drift.Switch Calibr,Tested & Returned to Svc  + (15:31:28, 26 May 2025)
• 05000366/LER-1980-019, Forwards Updated LER 80-019/03X-1  + (15:31:31, 26 May 2025)
• 05000366/LER-1980-097, Forwards Updated LER 80-097/03X-1  + (15:31:34, 26 May 2025)
• 05000395/LER-1982-037-03, /03L-0:on 821104,steam Generator Blowdown Radiation Monitor (RM-L3) & Steam Generator Blowdown Discharge Radiation Monitor (RM-L10) Taken Out of Svc.Caused by Insufficient Sample Flow.Sys Aligned for RM-L10  + (15:31:39, 26 May 2025)
• 05000259/LER-1982-090-03, /03L-0:on 821104,secondary Containment Breached When Turbine to Reactor Bldg Doors Opened Simultaneously During Door Interlock Maint.Caused by Insufficient Control While Interlocks Inoperable.Door Watch Instructions Written  + (15:31:40, 26 May 2025)
• 05000250/LER-1981-013, Forwards Updated LER 81-013/02X-2  + (15:31:43, 26 May 2025)

• 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)