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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
- SECY-19-0072, VR-SECY-19-0072: Denial of Petition for Rulemaking on Measurement and Control of Combustible Gas Generation and Dispersal (PRM-50-103; NRC-2011-0189) + (13:36:01, 26 June 2025)
- TAC:45978 + (14:13:22, 26 June 2025)
- TAC:43320 + (14:21:26, 26 June 2025)
- TAC:47494 + (14:34:51, 26 June 2025)
- 05000259/LER-2020-001, Re Manual Reactor Shutdown of Two Units on Decreasing Condenser Vacuum Due to Eel Grass Intrusion + (16:51:16, 26 June 2025)
- TAC:M95298 + (17:52:51, 26 June 2025)
- 05000423/LER-1997-054, :on 971029,noted That W Fuel May Exceed 10CFR50.46 Max Cladding Oxidation Design Criteria.Caused by Potentially non-conservative Modeling Criteria/Assumptions. Plant Specific Evaluation Has Been Performed by W + (17:56:34, 26 June 2025)
- 05000336/LER-1998-012-01, :on 980521,nonconservative Assumptions in Facility Loss of Normal FW Analysis Was Noted.Caused by Incorrect Calculation of SG Inventory During Lonf Event. Reanalysis of FSAR Loss of Normal FW Analysis Was Completed + (17:57:00, 26 June 2025)
- 05000293/LER-1997-016, :on 971105,recirculation Sys Loop B Pump Trip Was Noted.Caused by Sp Inadequacy.Revised Procedure + (17:58:23, 26 June 2025)
- 05000271/LER-1998-014, :on 980521,inadequate Configuration in Control Methods Resulted in Plant Operation W/Degraded Vital Fire Barrier Subject to Plant TS Sr.Cause Could Not Be Determined.Replaced Seal + (17:58:38, 26 June 2025)
- 05000285/LER-1998-006, :on 980521,outside of Design Basis for LOCA W/Plant Shutdown Was Noted.Caused by Lack of Defined Design Basis for Operability Requirements.Updated USAR & Procedures to Include Operability Requirements + (17:58:57, 26 June 2025)
- 05000382/LER-1997-030, :on 971114,discovered TS 3.6.3 Noncompliance Due to Design Error Associates W/Cars & Civs.Caused by Inadequate Mod.Valve CAR-201B Declared Inoperable + (17:59:05, 26 June 2025)
- 05000277/LER-1997-009, :on 971109,reactor Scram Occurred.Caused by Generator Lockout Condition & Subsequent Turbine Trip Failure of 2A Reactor Feedpump Turbine to Trip on Demand During Recovery Activities.Reset Appropriate Scram Logics + (18:00:59, 26 June 2025)
- 05000325/LER-1998-003, Forwards LER 98-003-00 Re Safety Relief Valves Exceeded TS Setpoint Limits.Rept Fulfills Requirement for Written Rept within 30 Days of Reportable Occurrence.No Regulatory Commitments Contained in Document + (18:01:46, 26 June 2025)
- 05000373/LER-1997-005, :on 970220,potential Loss of Both Trains of SGTS & Containment Pressure Suppression During First 10 of LOCA Was Noted.Caused by Deficiencies in Original Design Analysis & Procedures.Revised TS 3.6.1.8 + (18:03:26, 26 June 2025)
- 05000302/LER-1997-042, :on 970730,inadequate Engineering Evaluation Resulted in Loss of Diverse RCS Leak Detection Capability. Caused by Personnel Error.Installed New RM-A6 Particulate Radioactivity Monitor + (18:03:44, 26 June 2025)
- 05000461/LER-1997-034, Forwards 930414 S&L Electrical Engineering Std ESA-102 W/Copyright Statement Removed.Encl Originally Submitted w/980205 Info Re CPS Combined LER 97-034-00 & Part 21 Rept Contained Copyright Statement + (18:04:51, 26 June 2025)
- 05000413/LER-1998-006, Forwards LER 98-006-00,re Missed TS Surveillance on Pressurizer Heater Emergency Power Supply Testing. Commitments Made within Ltr,Encl + (18:11:10, 26 June 2025)
- 05000413/LER-1998-005-01, :on 980514,missed TS Surveillance on Abv Sys. Caused by Misinterpretation of TS SR 4.7.7.d.1.Entered Both Trains of Auxiliary Building Filtered Exhaust Sys of Both Units in TS 4.0.3 + (18:11:13, 26 June 2025)
- 05000423/LER-1996-021-02, Forwards LER 96-021-02 Re Components Not Included in IST Program as Result of Programmatic Deficiencies.Status of NNECO Commitments from Previous LER Suppl Are Contained in Attachment 1.Addl Commitments Contained in Attachme + (18:12:47, 26 June 2025)
- 05000482/LER-1997-020, :on 971109,failure to Meet Snubber TS LCO Requirements Was Noted.Caused by Manufacturing Errors. Performed Sys Walkdowns,Replacement & Evaluations of Failed Snubbers & Associated Piping Sections + (18:16:19, 26 June 2025)
- 05000293/LER-1992-001, :on 921219,Class I Piping Seismic Damping Ratios Found Were Not Approved by NRC for Use.Caused by Personnel Error.Class I Piping Evaluated Using Higher Damping Ratios & Declared Operable + (18:16:22, 26 June 2025)
- 05000446/LER-1997-004-01, :on 971108,gaps in Structural Components of Containment Sump Trash Racks Was Noted.Caused by Incomplete Corrective Actions Documents.Verified That Condition Does Not Negatively Interact W/Condition Reported in Unit 2 + (18:16:32, 26 June 2025)
- 05000382/LER-1997-027, :on 971110,discovered Controller for Accws Valve Was Left in Manual.Caused by Personnel Error.Event Debriefing W/Control Room Staff + (18:17:08, 26 June 2025)
- 05000361/LER-1998-004, :on 980211,DG Fuel Oil Analysis Results Indicated Total Particulate Concentration Was Above TS Limit.Caused by Personnel Errors.Personnel Were Reprimanded & Fuel Oil Was Filtered to Return It to within TS Limits + (18:20:04, 26 June 2025)
- 05000293/LER-1997-015, :on 971104,SSW Pump Overload Setting Was Too Low for Single SSW Pump Operation W/Degraded Voltage.Caused by Variation in SSW Pump BHP Characteristics.Removed SSW Pumps from Service & Reset OL Relay for Each SSW Pump + (18:23:32, 26 June 2025)
- 05000322/LER-1989-003, :on 890310,emergency Diesel Generator Manually Shut Down Due to Failure of Generator Output Breaker to Close.Breaker Removed from Svc,Inspected & Tested W/ Acceptable Results + (18:24:30, 26 June 2025)
- 05000423/LER-1997-063, :on 971231,inadequate Operator Response Time for Inadvertent SI Event Was Noted.Caused by Conflicting Program Requirements.Porvs & Associated Downstream Piping Have Been Qualified for Water Relief + (18:24:34, 26 June 2025)
- TAC:52842 + (18:26:17, 26 June 2025)
- 05000322/LER-1986-011, :on 860318,results of Annual Sounding of Intake Canal Initiated Limiting Condition for Operation Rept.Public Hearings Were Held & Util Granted Last of Three Permits to Dredge on 881220 + (18:27:04, 26 June 2025)
- 05000277/LER-1988-012-01, :on 880524,discovered That Units 2 & 3 Drywell High Range Radiation Monitors out-of-svc W/O Being Reported to NRC as Required.Caused by Personnel Errors.Monitors Returned to Svc on 880830.Training Conducted + (18:27:43, 26 June 2025)
- 05000423/LER-1997-043, Forwards LER 97-043-00,documenting Condition Determined Reportable on 970630.List of Commitments Provided + (18:28:43, 26 June 2025)
- TAC:M69492 + (18:31:06, 26 June 2025)
- 05000334/LER-1998-022, :on 980427,common Mode Failure of Ci Check Valves Was Noted.Bvps Is Currently Investigating Root Cause & Appropriate Corrective Actions Will Be Identified + (18:31:38, 26 June 2025)
- 05000344/LER-1988-031, :on 880918,offsite Sources Not Demonstrated Operable When Emergency Diesel Generator Removed from Svc. Caused by Cognitive Personnel Error.Operability of Offsite Power Sources Demonstrated.Personnel Counseled + (18:36:03, 26 June 2025)
- 05000352/LER-1988-031, :on 881006,determined That Plant Not in Compliance W/Fire Protection Evaluation Rept.Caused by Misunderstanding & Misapplication of Detailed Regulatory Requirements.Fire Watch Patrol Established + (18:47:33, 26 June 2025)
- 05000298/LER-1996-009, :on 960725,App R Safe Shutdown Analysis Vulnerabilities Were Noted.Caused by Human Error.Performed Procedural Changes & Circuit Mods Were Made + (18:48:25, 26 June 2025)
- 05000254/LER-1998-006, :on 980128,RB Post LOCA Temps Were Higher than Values Used for Environ Qualification of Electrical Equipment Due to Invalid Engineering Judgement.Cause Cannot Be Objectively Documented.Installed New TOLs + (18:49:50, 26 June 2025)
- 05000293/LER-1989-026, :on 890830,automatic Scram Signal & Reactor Scram Resulted in turbine-generator Trip & Opening of 345 Kv Switchyard Air Circuit Breakers.Caused by Automatic Turbine Runback.Wiring to Relays Reversed + (18:49:53, 26 June 2025)
- 05000293/LER-1986-017, :on 860701,as-found Test Results for 18-inch Anchor Darling Feedwater Check Valves Showed Leakage in Excess of Tech Specs.Caused by Thermal Aging & Erosion of Soft Seat Matl.Hinge Pins Replaced + (18:49:58, 26 June 2025)
- 05000254/LER-1998-012-01, :on 980227,reactor Bottom Head Drain Line Developed Leak.Caused by Inadequate Work Practice During Original Construction.Replaced Leaking Section of Drain Line Under Design Change Package(Dcp 9800100) + (18:50:01, 26 June 2025)
- 05000461/LER-1998-004, :on 980127,identified Various Deficiencies in Installed SCR & Power Diodes of Division 2 Nsps Inverter. Caused by Ineffective & Inadequate Preventive Maint. Corrected Deficiencies & Calibr Inverter,Per 10CFR21 + (18:50:42, 26 June 2025)
- NUREG-0974, Forwards Suppl to Fes (NUREG-0974) & Fr Notice of Availability.Suppl Contains Evaluation of Alternative of Facility Operation W/Installation of Further Severe Accident Mitigation Design Features.W/O NUREG-0974 + (18:58:31, 26 June 2025)
- TAC:56348 + (19:01:22, 26 June 2025)