Search by property
Jump to navigation
Jump to search
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
- 05000413/LER-1987-037, :on 870909,two Broken Pipe Supports Noted on ITT-Grinnell mini-stiff Pipe Clamps & Metal Strap Wrapped Around Pipe.Caused by Mfg Deficiency.Straps Replaced W/Heat Treated Strap.Also Reported Per Part 21 + (20:06:41, 26 June 2025)
- 05000498/LER-1997-009, :on 970902,MSSVs 7430A & 7430B Found W/Lift Settings Outside TS Allowable Tolerance as Listed.Caused by Alteration of Nozzle & Disc Oxide Layers.Lift Setting of out-of-tolerance Valves Will Be Adjusted + (20:12:00, 26 June 2025)
- 05000368/LER-1986-006, :on 860421,inadvertent Actuation of Reactor Protective Sys Occurred.Caused by Channel a Sys Departure from Nucleate Boiling Ratio & High Local Power Density Trip Functions Bypassed During Shutdown Operations + (20:16:03, 26 June 2025)
- 05000293/LER-1988-006, :on 880203,trip Signal Generated Unexpectedly from ATWS Div 2 Circuitry Resulting in Automatic Trip of Recirculation Sys Pumps & Subsequent Reactor Protection Sys Scram Signal.Cause Not Conclusively Determined + (20:17:49, 26 June 2025)
- 05000368/LER-1984-015, :on 840302,discrepancy in Fire Barrier Penetration 2099-0002,which Previously Evaluated Acceptable, Identified as Nonfunctional.Caused by Lack of Definitive Guidelines in Walkdown Program + (20:18:18, 26 June 2025)
- 05000346/LER-1989-007, :on 890614,one of Four Strong Motion Triaxial Accelerometers Inoperable for More than 30 Days.Cause to Be Evaluated.Remaining Seismic Monitoring Sys re-energized & Functional W/Addl Accelerometers + (20:25:01, 26 June 2025)
- 05000271/LER-1998-001, :on 980124,discovered That Penetration Seal Did Not Conform to Tested Configuration for 3-h Rated Seal. Caused by Lack of Formal Fire Protection Program at Time of Seal Installation.Repaired non-conforming Seal + (20:33:47, 26 June 2025)
- TAC:44876 + (20:37:14, 26 June 2025)
- TAC:M42535 + (20:38:18, 26 June 2025)
- 05000344/LER-1988-036, :on 881010,containment Ventilation Isolation Signal Found Locked in When Containment Monitoring Sys Returned to Svc.Caused by Personnel Error.Damaged Relay Replaced & Sensor Returned to Operability + (20:39:22, 26 June 2025)
- 05000346/LER-1997-015-01, Forwards LER 97-015-01,which Is Being Submitted Ro Provide Addl Info Re Corrective Actions Being Taken as Result of Subj Occurrence.Changes Marked W/Rev Bar in Margin + (20:41:01, 26 June 2025)
- 05000346/LER-1997-008, :on 970318,inadequate Testing of safety-related Logic Occurred.Overall Root Cause Will Be Completed by 980930 & Results of Evaluation Will Be Reported in Suppl to LER + (20:41:06, 26 June 2025)
- 05000382/LER-1988-006, :on 880405,fire Impairment Not Issued Immediately for Removal of Lock,Per Tech Spec 3.7.11.Caused by Inadequate Administrative Control.Note Added to Work Authorization Instructions,Procedures Revised + (20:41:48, 26 June 2025)
- 05000327/LER-1997-013-01, Forwards LER 97-013-01 Re Missed Surveillance as Result of Inadequate Procedure.Revs Annotated by Vertical Bar to Right of Text + (20:43:18, 26 June 2025)
- 05000254/LER-1997-015, Informs NRC of Change of Committed Due Date Contained in LER 97-015,dtd 970812.Station Changing Due Date of Commitment to 990528 + (20:44:53, 26 June 2025)
- 05000259/LER-1988-007-01, :on 880127,calibr Error Discovered in Four RHR Svc Water (RHRSW) Pump Flow Instruments.Caused by Error on Flow Transmitter Data Sheet.Pump 2D Rebuilt & Impeller Replaced.Rhrsw Pumps Met Tech Spec Flow Rate + (20:47:05, 26 June 2025)
- 05000336/LER-1998-007-01, :on 980408,noted That non-conservative Assumptions May Result in Violation of Fuel Centerline Temp Fuel Design Limit.Caused Indeterminate.Will Complete Siemens Analysis Prior to Entering Mode 4 from Current Outage + (20:51:23, 26 June 2025)
- 05000373/LER-1997-046, :on 971216,potential Pressurization of TBV Exhaust Tunnel Resulted from Ms Helb.Caused by Calculation Error.Revised Final SAR to Include VT Exhaust Ventilation Dampers + (20:52:12, 26 June 2025)
- 05000445/LER-1997-004, :on 980408,issues Discovered During Review of GL 96-01 Associated W/Ts Surveillances.Caused by Inadequate Test Procedures.Revised Applicable Test Procedures to Include Testing When Alternate Power Is in Service + (20:53:30, 26 June 2025)
- 05000416/LER-1988-014, :on 880911,RWCU Sys Isolation Occurred as Operators Shifted from post-pump to Prepump Mode.Caused by Air Trapped in Flow Transmitter.Integrated Operating Procedures Revised + (20:54:44, 26 June 2025)
- 05000458/LER-1988-024, :on 881027,ESF Actuation Occurred Resulting in Isolation of RWCU Sys.Caused by Cross Tripping Phenomenon of Temp Switches & Procedural Error.Changes Made to Surveillance Test Procedures + (20:56:39, 26 June 2025)
- 05000458/LER-1986-051, :on 860810,RWCU Occurred When Daily Surveillance on Leak Detection Temp Modules Conducted.Caused by Personnel Negligence.Permanent Caution Plaque Mounted Near Read-Set Switches + (20:56:40, 26 June 2025)
- 05000366/LER-1988-007, :on 880212,valves Did Not Pass Local Leak Rate Testing & Air Supply Lines Did Not Meet All Sys Design Requirements in Fsar.Caused by Design Deficiency.Valve Deficiencies Corrected & Valve Design Changed + (20:59:05, 26 June 2025)
- 05000278/LER-1988-003, :on 880520 & 22,primary Containment Isolation Sys Group III Inboard Isolation & Half Reactor Scram Occurred on Startup Feed,Resulting in Breaker Trip.Caused by Voltage Fluctuations.Breakers Reclosed + (21:05:40, 26 June 2025)
- 05000302/LER-1986-018, Advises That No Addl Info Under LER 86-018 Will Be Submitted + (21:07:22, 26 June 2025)
- 05000373/LER-1997-020, :on 970422,recirculation Flow Converter Calibration & Functional Testing Defciencies Were Determined.Caused by Inadequate Reviews of Test Procedures. Engineering Evaluated Procedure Deficiencies + (21:10:12, 26 June 2025)
- 05000423/LER-1989-018, :on 890802,condensate Demineralizer Waste Neutralization Sump Effluent Radiation Monitor Declared Inoperable Due to Inadequate Testing.Caused by Personnel Error.Interlocks Included in Procedures + (21:10:15, 26 June 2025)
- 05000267/LER-1988-012, :on 880816,NRC Notified That Ga Co Environ Qualification Temp Profiles in CONTEMPT-G Calculated Lower Peak Temps for Line Break Scenarios.New Temp Profiles Developed by Numerical Applications,Inc + (21:10:25, 26 June 2025)
- 05000352/LER-1988-019, :on 880506,17 Agastat Relays Found W/Missing or Unsecured Locking Springs.Caused by Inadvertent Dislodging During Work Activities in Relay Cabinets.Memo & Surveillance Test Written for Future Ref + (21:12:01, 26 June 2025)
- 05000267/LER-1985-003, :on 850304,during Loss of Offsite Power & Turbine Trip Surveillance,Both Diesel Generator Tie Breakers Failed to Close.Caused by Faulty Cell on Station Battery 1A. Batteries Replaced w/lead-antimony Batteries + (21:22:51, 26 June 2025)
- 05000416/LER-1989-002, :on 890331,leakage Rates of Five Containment Isolation Valves Could Not Be Quantified,Violating Tech Specs.Caused by Excessive Leakage Beyond Equipment Capability.Valve Actuator Replaced + (21:27:25, 26 June 2025)
- 05000029/LER-1988-002, :on 890322,automatic Reactor Scram Occurred When Power to Amplifiers in Nuclear Instrument Cabinet a Lost.Caused by Failure of Capacitor in Sola Transformer. Capacitors Replaced in Accordance W/Qa Program + (21:34:38, 26 June 2025)
- 05000344/LER-1988-027, :on 880915,Train B Suction Valve for Centrifugal Charging Pumps from Vol Control Tank Open & Incapable of Automatic Closure Due to Performance of Design Change.Caused by Personnel Error + (21:34:57, 26 June 2025)
- 05000458/LER-1989-010, :on 890318,unsealed Penetration Discovered in Control Bldg Fire Wall on 116 Ft Elevation Making Barrier Inoperable.Existing Hourly Fire Watch Patrols for Conditions Added to Limiting Condition for Operation + (21:35:44, 26 June 2025)
- TAC:53961 + (21:36:09, 26 June 2025)
- TAC:44324 + (21:40:17, 26 June 2025)
- 05000302/LER-1989-011, :on 890406,incorrectness of FSAR Statement Re Failure or Rupture of Circulating Water Sys Expansion Joint Affecting safety-related Equipment Confirmed.Caused by Personnel Error.Evaluation Underway + (21:45:22, 26 June 2025)
- 05000327/LER-1988-007, :on 880124,discovered That Auxiliary Bldg Secondary Containment Encl Not within Set Configuration. Caused by Lack of Maint Control & Inappropriate Design Assumption.Blast Door Reopened After Testing + (21:59:27, 26 June 2025)
- 05000302/LER-1989-022, :on 890614,during Engineered Safeguards Surveillance,Observed Indications That Both Main Feedwater Pumps Had Tripped.Cause Not Conclusively Determined. Precaution Will Be Added to Procedure + (22:01:00, 26 June 2025)
- 05000293/LER-1988-017, :on 880608,crack Discovered in Yoke Portion of RHR Sys Loop B Valve.Caused by High Stress Levels Due to Yoke Design,Fabrication Defects & Excessive Application of Motor Operator Thrust.Valve Yoke Repaired + (22:21:25, 26 June 2025)
- 05000313/LER-1988-024, :on 881219,DHR Sys Inboard Suction Valve Closed,Resulting in Loss of DHR Sys Flow.Caused by Inadvertent Jarring of Panel Housing Control Relays for Suction Valve.Caution Label Placed on Panel + (22:26:38, 26 June 2025)
- 05000245/LER-1987-029, :on 870724,standby Gas Treatment Inoperability Identified During Refueling Operations.Caused by Personnel Error.Design Change Implemented During 1989 Refueling Outage + (22:28:04, 26 June 2025)
- 05000293/LER-1989-024, :on 890726,automatic Actuation of Outboard RWCU Sys Portion of Primary Containment Isolation Control Sys Occurred.Caused by Trip Signal from Outboard RWCU Sys Flow Sensor.Testing Planned for Addl Data + (22:28:21, 26 June 2025)
- 05000312/LER-1988-010, :on Four Occasions Between 880719-28,fire Wraps Removed from Conduit B-40034 Without Required Firewatch. Caused by Miscommunication Between Plant Mods Group & Fire Protection Coordinator.Hourly Firewatches to Be Conducted + (22:34:09, 26 June 2025)
- NUREG-0783, Safety Evaluation Supporting Amends 67 & 49 to Licenses NPF-11 & NPF-18,respectively + (22:35:27, 26 June 2025)
- 05000219/LER-1988-022, :on 881002,power to 4,160 Volt Bus 1D Was Lost When Breaker 1D Tripped & Locked Out Due to Ground Fault. Caused by Isolated Defect in Cable Insulation.Cable Replaced + (22:43:26, 26 June 2025)
- 05000255/LER-1984-021, :on 840915,primary Coolant Pump P-50C Shut Down Due to Failure of All Seals Except Vapor Seals.Caused by Failure to Torque Impeller Bolts Properly.Procedures for Assembly of Pump Upgraded + (22:44:14, 26 June 2025)
- 05000312/LER-1988-005, :on 880315 & 22,steam/water Transients Caused Relief Valves to Lift & Result in Discharge of Water from Letdown Sys to Reactor Bldg Sump.Caused by Pressure Spike Due to Acceleration Slug of Water + (22:44:22, 26 June 2025)
- NUREG-1201, Forwards Proposed Commission Policy Statement on Integrated Scheduling of Plant Mods,Proposed Commission Paper & Supporting Info,For CRGR Consideration + (22:46:18, 26 June 2025)
- 05000327/LER-1987-030, :on 890620 & 0704,four Standby Diesel Generators Started Due to Blown Fuse in Remote Emergency Start Circuitry & 125 Volt Dc Vital Battery Board Ii.Caused by Defective Fuse.Fuses Replaced + (22:49:19, 26 June 2025)
- TAC:54010 + (22:53:25, 26 June 2025)