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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

• 05000302/LER-1993-001, :on 930305,failure of Decay Heat Sys Cooling Control Valve Caused Cooldown Exceeding TS Limits.Caused by Improper Operation of Valve.Appropriate Procedures Revised  + (18:32:11, 26 May 2025)
• 05000336/LER-1979-014-03, /03X-2:on 790604,during Routine Operations,Small Crack Discovered in Charging Pump Body C.Caused by Stress of Fatigue Failure in Valve Block.Three Charging Pumps Replaced W/Gaulin Pumps  + (18:32:30, 26 May 2025)
• 05000336/LER-1979-014, Forwards LER 79-014/03X-2  + (18:32:38, 26 May 2025)
• 05000341/LER-1993-014, :on 931225,automatic Reactor Shutdown Occurred Following Failure of Main Turbine.Caused by Loss of Material from Turbine Rotor in Low Pressure Section Number 3.Turbine/ Generator Repairs Will Be Determined  + (18:32:40, 26 May 2025)
• 05000313/LER-1991-003, :on 910421,actuation of Emergency Feedwater Sys During Plant Heatup Occurred Due to Low Once Through Steam Generator Level Resulting from Inadequate Feedwater Flow. Caused by Degraded Auxiliary Feedwater  + (18:33:52, 26 May 2025)
• 05000317/LER-1981-015-03, /03L-0:on 810226,shift Supervisor Informed That Sample Pump for Control Room Radiation Monitor Was Out of Svc,Rendering Auto Recirculation of Control Room Inoperable on High Radiation.Caused by Pump Seizure  + (18:33:59, 26 May 2025)
• ML20063A671  + (18:34:06, 26 May 2025)
• L-94-002, Forwards Rev 10 to Security Plan for Pbnp.Withheld Per 10CFR1,50,70 & 73  + (18:34:56, 26 May 2025)
• ML20063A381  + (18:35:05, 26 May 2025)
• 05000249/LER-1982-030-03, /03L-0:on 820716,transient in-core Probe Ball Valve 3A Failed to Reclose After Opening.Cause Will Be Resolved During Next Outage.Valve Will Be Replaced & Supplemental LER Submitted When Cause Determined  + (18:36:00, 26 May 2025)
• 05000249/LER-1982-030, Forwards LER 82-030/03L-0  + (18:36:03, 26 May 2025)
• 05000220/LER-1982-009-01, Water Observed Leaking from Insulation on Recirculation Piping Discharges 11 & 15 from Reactor Vessel.Caused by Cracking in Riser Elbow Welds. Recirculation Piping Replaced  + (18:36:34, 26 May 2025)
• 05000220/LER-1982-009, Forwards Updated LER 82-009/01X-1  + (18:36:38, 26 May 2025)
• 05000305/LER-1982-002-03, During Normal Operation, Pressurizer Level Transmitter LT427 Found Out of Spec.Caused by Instrument Drift.Transmitter Recalibr.Barton Transmitters Will Be Changed as Part of long-term Upgrade  + (18:37:15, 26 May 2025)
• 05000305/LER-1982-002, Forwards Updated LER 82-002/03X-1 & LERs 82-024/03L-0 & 82-025/03L-0  + (18:37:18, 26 May 2025)
• ML20062N289  + (18:37:30, 26 May 2025)
• ML20062N096  + (18:37:56, 26 May 2025)
• 05000259/LER-1981-072-03, /03L-0:on 811112,while Performing SI 4.2.B-55, Pressure Transmitter 1-PT-74-65 Found Out of Tolerance. Caused by Instrument Drift.Ge Model 551 Pressure Transmitter Recalibr,Functionally Tested & Returned to Svc  + (18:38:24, 26 May 2025)
• 05000259/LER-1981-071-03, /03L-0:on 811111,1-LIS-3-203B Switch 2 Operated at 31.4 Inches of Water.Caused by Instrument Drift.Barton Model 288 Switch Recalibr  + (18:38:30, 26 May 2025)
• 05000259/LER-1981-072, Forwards LER 81-072/03L-0  + (18:38:36, 26 May 2025)
• 05000259/LER-1981-071, Forwards LER 81-071/03L-0  + (18:38:39, 26 May 2025)
• TAC:M88099  + (18:39:27, 26 May 2025)
• 05000281/LER-1980-010-01, Containment Gaseous & Particulate Radiation Monitor Found to Have One Automatic Function Incapable of Operating During Fuel Movement.Caused by Bypass of Containment Exhaust Fan Relay in Design Change  + (18:39:48, 26 May 2025)
• L-02-032, Equivalent Usage Factor for Equipment Qualification  + (18:40:36, 26 May 2025)
• 05000346/LER-1981-072-03, /03L-0:on 811105,discovered Three Unsealed Conduits Through Control Room Floor Into Cable Spreading Room.Caused by Procedure Deficiency.Conduits Temporarily Sealed & Reinspected  + (18:41:05, 26 May 2025)

• 05000346/LER-1981-072, Forwards LER 81-072/03L-0  + (18:41:14, 26 May 2025)

• PM-81-102, Forwards Monthly Operating Rept for Nov 1981  + (18:41:43, 26 May 2025)
• A810007, Responds to NRC Re Violations Noted in IE Insp Rept 50-298/81-19.Corrective actions:1/2-inch Tolerance Between Weld & Edge of Overlay Was Specified for Dimensional Tolerances  + (18:42:25, 26 May 2025)
• ML20062L748  + (18:43:21, 26 May 2025)
• 05000334/LER-1981-001-01, /01P-0:on 810106,IE Bulletin 79-14 Evaluation & Reanalysis of Piping & Supports Revealed H-162,H-164 & H-166 to Be Less Conservative than Original Design.Caused by QA Breakdown  + (18:46:59, 26 May 2025)
• 05000277/LER-1980-034-03, /03L-0:on 801210,A RHR Pump Room Coolers Failed to Start Automatically.Caused by Improper Adjustment of Cell Switch on RHR Pump Breaker,Ge Type 4.16-250-84.Breaker Replaced & Satisfactory Surveillance Test Performed  + (18:47:36, 26 May 2025)
• IR 05000317/1981025  + (18:47:43, 26 May 2025)
• 05000458/LER-1993-026, :on 931117,isolation of Reactor Core Isolation Cooling Sys Occurred Due to Failure of Relay. Cause Requires Additional Evaluation.Three Relays Replaced & Shipped to Mfg for Analysis  + (18:48:02, 26 May 2025)
• TXX-9341, Forwards Rev 8 to Comanche Peak Steam Electric Station Units 1 & 2 Fire Protection Rept  + (18:48:12, 26 May 2025)
• 05000277/LER-1980-015-03, /03X-1:on 800904,during Surveillance Testing at Full Power,Reactor Core Isolation Cooling Outboard Steam Supply Isolation Valve MO-2-13-16 Failed to Close.Caused by Improperly Functioning Switch on Limitorque Operator  + (18:48:32, 26 May 2025)
• IR 05000277/1993019  + (18:49:27, 26 May 2025)
• IR 05000289/1993008  + (18:49:37, 26 May 2025)
• IR 05000373/1993019  + (18:49:58, 26 May 2025)
• ML20062K163  + (18:50:32, 26 May 2025)
• TAC:M69115  + (18:50:43, 26 May 2025)
• ML20062K105  + (18:50:53, 26 May 2025)
• IR 05000312/1982027  + (18:51:18, 26 May 2025)
• TAC:43514  + (18:51:27, 26 May 2025)
• 05000296/LER-1980-040-03, /03L-0:on 801010,diesel Generator 3EB Lube Oil Circulating Pump Found Inoperable.Caused by Locking of double-row Ball Bearing.Lube Oil Circulating Pump Replaced  + (18:52:18, 26 May 2025)
• 05000296/LER-1980-040, Forwards LER 80-040/03L-0  + (18:52:22, 26 May 2025)
• NUREG-0686, Responds to Ltr Expressing Concern Re Release of Kr-85 from Tmi.Potential Physical Health Impact on Public from Using Any of Proposed Strategies for Removing Kr-85 Is Negligible.W/O Supporting Documents  + (18:52:25, 26 May 2025)
• IR 05000320/1982006  + (18:53:10, 26 May 2025)
• NUREG-0698, Responds to Expressing Concern Re NUREG-0698.NRC Is Establishing TMI 2 Advisory Panel Consisting of State & Local Govt Representatives,Independent Scientific Community Members & Public  + (18:53:13, 26 May 2025)
• ML20062J709  + (18:53:28, 26 May 2025)
• ML20062J629  + (18:53:56, 26 May 2025)
• 05000369/LER-1981-181-03, 125-volt Dc Vital Instrumentation & Control Power Battery Evcb Declared Inoperable & Returned to Svc Twice Before Shutdown.Caused by Low Specific Gravity on Cell 16.Cell Jumpered Out  + (18:54:03, 26 May 2025)