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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
- 05000499/LER-1994-007-02, :on 940625,main Transformer Lockout Relay Actuated.Caused by Failure of Capacitor within Pilot Wire Relay.Annunciator Response Procedures Have Been Revised & Faulty Pilot Wire Relay Was Replaced + (14:20:18, 26 May 2025)
- ML20071P947 + (14:20:25, 26 May 2025)
- NRC-94-4215, Forwards Proprietary PXS-T2R-024, Quick Look Rept for SPES-2 Matrix Test S00908 (Blind Test). Rept Withheld (Ref 10CFR2.790) + (14:20:27, 26 May 2025)
- 05000373/LER-1994-010-04, :on 940705,unit 1 Scrammed from Power Level of 601 Mwe & 56.4% Core Thermal Power.Caused by Loss of Feed Flow to RPV.1C34-K653B Circuit Card Was Replaced & non-safety Trip Devices Undergoing Evaluations + (14:20:51, 26 May 2025)
- ML20071P717 + (14:20:58, 26 May 2025)
- NRC-94-4213, Forwards Proprietary PXS-T2R-022, Quick Look Rept for SPES-2 Matrix Test S00605. Rept Withheld (Ref 10CFR2.790) + (14:21:02, 26 May 2025)
- NRC-94-4216, Forwards Proprietary PXS-T2R-025, Quick Look Rept for SPES-2 Matrix Test S01007. Rept Withheld (Ref 10CFR2.790) + (14:21:05, 26 May 2025)
- 05000327/LER-1994-010, :on 940703,determined That STA Position Not Staffed for 30 Min During Power Operations Due to Personnel Error.Appropriate Disciplinary Action Taken W/Involved Individual + (14:21:16, 26 May 2025)
- RBG-40699, Documents Conversation Between NRC Region IV & River Bend Station Personnel on 940727 Re Schdeule for Implementing Certain Aspects of Interim Procedures Upgrade Effort + (14:21:17, 26 May 2025)
- 05000318/LER-1981-018-03, /03L-0:on 810414,short at Motor Connection Box Tripped Charging Pump 22.Caused by Insufficient Insulation of Lead.Facility Change Request Initiated for Std Ref for Low Voltage Application + (14:21:28, 26 May 2025)
- 05000255/LER-1982-032-03, /03L-0:on 820921,during Routine Surveillance, Snubber 39 (GC-8 Shutdown Cooling LPSI Pump Suction) Found W/Insufficient Oil & Declared Inoperable.Caused by Scores in Cylinder Walls Due to Vibrations.Snubber Replaced + (14:21:33, 26 May 2025)
- 05000263/LER-1994-002, :on 940324,determined That Instantaneous Trip of 480 Vac MCCBs Does Not Meet Acceptance Trip Due to Mfg Design.Revised PMP for 480 Vac Molded Case Circuit Breakers + (14:21:42, 26 May 2025)
- ML20071P365 + (14:21:47, 26 May 2025)
- 05000263/LER-1994-002-01, Provides Suppl Rept to LER 94-002-01.Suppl Rept Corrects Error Re Labeling of Axes for Graph of Instantaneous Trip Settings Vs Actual Current to Trip + (14:21:49, 26 May 2025)
- ML20071P353 + (14:21:50, 26 May 2025)
- ML20071P340 + (14:21:52, 26 May 2025)
- 05000334/LER-1982-038-03, /03L-0:on 820925,during Attempt to Secure Turbine Driven Auxiliary Feed pump,TV-MS-105B Failed to Close.Caused by Nut Lodging in TV-MS-105B Valve Body Due to Failed Check Valve MS-20.Nut Removed + (14:21:54, 26 May 2025)
- 05000317/LER-1982-062-03, /03L-0:on 820927,pressurizer Level Deviated from Program Level & Pressurizer Level Controller Found in Local Setpoint Mode.Caused by Operator Error.Procedure Changed + (14:21:55, 26 May 2025)
- 05000346/LER-1982-050-03, /03L-0:on 820921,breaker BE106 Opened,Causing MCCE12A to de-energize.Caused by Momentary Ground Due to Failure of Essential Pressurizer Heater (UB3-2).Maint Work Order 82-2433 Issued + (14:22:04, 26 May 2025)
- 05000321/LER-1983-049-03, /03L-0:on 830505,sanitary Water Supply Valve X42-FO73D Found Open But Not Locked Open.Caused by Personnel Error.Personnel Counseled + (14:22:32, 26 May 2025)
- 05000278/LER-1982-018-03, /03L-0:on 820924,torus Narrow Range Level Recorder Indicated Erratically.Investigation Determined Torus Water Level within Tech Spec.Caused by Const Personnel Knocking Instrument Out of Calibr.Personnel Counseled + (14:22:34, 26 May 2025)
- 05000277/LER-1982-033-03, /03L-0:on 821007,smoke Detector S85 in Torus Room Failed to Calibr to within Specified Limits.Caused by Faulty Smoke Detector,Pyrotronics Model F-5B.Detector Replaced,Unit Calibr & Returned to Svc + (14:22:35, 26 May 2025)
- 05000278/LER-1982-020-03, /03L-0:on 821006,during Surveillance Test,Hpci Room Carbon Dioxide Fire Protection Sys Failed to Inject Automatically.Caused by Dirty Contacts on electro-manual Pilot Control Solenoid Valve.Contacts Cleaned + (14:22:38, 26 May 2025)
- TAC:51432 + (14:22:51, 26 May 2025)
- 05000327/LER-1983-067-01, /01T-0:on 830518,start Bus 1B Failed Due to phase- to-phase Fault.Tech Spec 3.8.1.1 Action Statement a Entered.Diesel Generator Not Operable within 1-h Limit. Caused by Bus Sleeve Insulation Degradation + (14:22:55, 26 May 2025)
- 05000255/LER-1983-033-03, /03L-0:on 830428,D Safety Injection Tank T-82D Sampling Indicated Boron Concentration Below Tech Spec Limit.Caused by Minor Leakage Past Loop Check Valve & SIT Check Valve or Fill & Drain Valve + (14:22:57, 26 May 2025)
- 05000338/LER-1983-028-03, /03L-0:on 830507,inside Containment Recirculation Spray Pump 1-RS-P-1B Tripped During Surveillance Testing. Caused by Faulty B Phase Overcurrent Device in Breaker. Replacement Breaker Installed + (14:22:58, 26 May 2025)
- 05000339/LER-1983-037-03, /03L-0:on 830502,containment Particulate (RM-259) & Gaseous (RM-260) Activity Monitors Found Isolated W/ Containment Purge & Exhaust Sys in Operation.Caused by Failure to Reopen Manual Isolation Valve + (14:23:00, 26 May 2025)
- 05000302/LER-1983-022-01, /01T-0:on 830516,two Pinhole Leaks Found in Piping on Downstream Side of Two Nuclear Svc HX Discharge Isolation Valves.Caused by Insufficient Surveillance & Design Inadequacy on Inner PVC Liner + (14:23:02, 26 May 2025)
- 05000296/LER-1983-028-03, /03L-0:on 830429,while Investigating Blown Fuse in Annunication,Relay 16A-K79 Failed.Caused by Coil Over Heating Melting Spool Matl & Stuck Armature in Energized Position.Relay Replaced + (14:23:06, 26 May 2025)
- 05000366/LER-1983-028-03, /03L-0:on 830420,B Plant Svc Water Isolation Valve 2P41-F316B Failed to auto-close Upon loss-of-sys- Pressure Signal Initiation.Cause Under Investigation + (14:23:08, 26 May 2025)
- 05000255/LER-1983-032-03, /03L-0:on 830429,declaration of Operability Signature Found Incomplete for Maint Order on Fire Barrier Penetration.Caused by Personnel Oversight Re New Maint Order Closeout Procedures + (14:23:12, 26 May 2025)
- 05000237/LER-1983-036-03, /03L-0:on 830502,drywell Floor Drain Leakage Exceeded Tech Spec Limits Due to Bonnet Leakage on Feedwater Check Valve 2-220-58B.Caused by Failed Bonnet Seal Ring.Seal Ring Replaced.Leakage to Be Monitored + (14:23:13, 26 May 2025)
- 05000281/LER-1983-023-03, /03L-0:on 830511,PT 27B Revealed Amp Readings for Heat Tracing Panel 9,circuit 28A,below Acceptance Criteria. Caused by Boric Acid Buildup on Heat Tape,Corroding Terminals & Resulting in Open Circuit.Heat Tracing Replaced + (14:23:14, 26 May 2025)
- 05000281/LER-1983-022-03, /03L-0:on 830430,PT-27 Revealed Amp Readings for Heat Tracing Panel 8,circuits 5A & 22A,below Acceptance Criteria.Caused by Excessive Heat.Defective Heat Tracing Replaced & Tested.Design Change Prepared + (14:23:17, 26 May 2025)
- 05000259/LER-1983-022-03, /03L-0:on 830429,downstream HEPA Filters in Standby Gas Treatment Sys Trains a & B Exceeded Tech Spec 18-month Test Frequency.Caused by Personnel Error.Procedure SI 4.7.B-4 Review Rescheduled + (14:23:19, 26 May 2025)
- 05000255/LER-1983-034-01, /01T-0:on 830516,D Safety Injection Tank T-82D Level Fell Below Tech Spec Limit During Routine Sampling. Caused by Delay in Fill Operations Due to Failure of Relief Valve RV-3161 to Reseat within 1 H + (14:23:23, 26 May 2025)
- 05000249/LER-1981-033-01, Unit 2/3 Diesel Generator (D/G) Tripped Due to High Cooling Water Temp & Unit 3 D/G Manually Tripped During Testing.Caused by Failure of Cooling Water Pump Discharge Valve + (14:23:25, 26 May 2025)
- 05000416/LER-1982-065-03, /03L-0:on 820907,smoke Detectors in Fuel Handling Area & Main Steam Tunnel Alarmed & Would Not Clear.Caused by Dust Accumulation on Ionization Smoke Detector.Detectors Cleaned + (14:23:29, 26 May 2025)
- 05000311/LER-1982-112-01, /01P:on 821005,svc Water Discovered Leaking at Rate of 1 Gallon Per Minute Inside Containment Bldg on Fan Coil Unit 21.Cause Not Stated.Leak Isolated.Investigation Continuing.Detailed Rept Forthcoming + (14:23:31, 26 May 2025)
- 05000416/LER-1982-066-03, /03L-0:on 820909,smoke Detector Zone Covering Hallway Area Elevation 93-ft Auxiliary Bldg & HPCS Pump Room Alarmed & Would Not Clear.Caused by Dust Accumulation on Ionization Smoke Detectors.Detectors Cleaned + (14:23:38, 26 May 2025)
- 05000328/LER-1983-068-03, /03L-0:on 830504,during Routine Filling of Cold Leg 2 Accumulator,Safety Injection Pump Inadvertently Left On,Resulting in Accumulator Being Overfilled & Overpressurized.Caused by Personnel Error + (14:23:40, 26 May 2025)
- 05000416/LER-1982-063-03, /03L-0:on 820902,various Fire Rated Cable Penetrations Discovered Not Sealed in Several Field Termination Cabinets Located in Control Room.Penetrations Removed to Allow Cable Rerouting + (14:23:42, 26 May 2025)
- 05000416/LER-1982-069-03, /03L-0:on 820903,supervisory Alarm for Fire Door Separating RHR a Piping Room & East Passageway Alarmed & Would Not Clear.Caused by out-of-adjustment Door Microswitch.Switch Adjusted & Tested to Assure Operability + (14:23:45, 26 May 2025)
- 05000395/LER-1983-037-03, /03L-0:on 830503,emergency Feedwater Valve IFV-3556-EF Failed to Remain Closed for 3 H.Caused by Air Leak Around Valve Positioner Gasket.Positioner Cover Tightened Down & Valve Tested Satisfactorily + (14:23:49, 26 May 2025)
- ML20071N701 + (14:23:50, 26 May 2025)
- 05000311/LER-1982-113-01, /01P:on 821005,during Routine Operation,Svc Water Leak Discovered Inside Containment on Fan Coil 22. Cause Unknown.Investigation in Progress.Rept Will Be Submitted Per IE Bulletin 80-24 + (14:23:58, 26 May 2025)
- GO2-83-436, Interim Deficiency Repts 216 & 223 Re Gaseous Release from RHR Relief Valve Vents & Inadequate Standby Liquid Control Sys,Respectively.Final Deficiency Rept 232 Re Improper Installation of RHR Support Pin Receptacle Also Encl + (14:24:17, 26 May 2025)
- B10547, Informs That Bolt Matl Discussed in Util Mfg & Tested to Matl Spec Requirements of SA-540,Grade B23, Class 2,in Response to D Sellers Request for Addl Info. Expeditious Approval of ASME Code Case N-310-1 Requested + (14:24:32, 26 May 2025)
- ML20071M846 + (14:25:25, 26 May 2025)
- NUREG-1242, Provides Background Info That May Be Useful for 920903 Commission Meeting W/Epri + (14:25:31, 26 May 2025)