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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
- ML20237K504 + (02:56:00, 27 June 2025)
- ML20237K489 + (02:56:07, 27 June 2025)
- ML20237K460 + (02:56:30, 27 June 2025)
- ML20237K454 + (02:56:35, 27 June 2025)
- 05000412/LER-1987-011-01, :on 870730,inadvertent Safety Injection Occurred Due to Low Steam Line Pressure.Caused by Personnel Error.Test Engineer Reassigned & Incident Will Be Reviewed at Safety Meetings + (02:56:51, 27 June 2025)
- ML20237K388 + (02:57:39, 27 June 2025)
- ML20237K365 + (02:58:11, 27 June 2025)
- ML20237K348 + (02:58:17, 27 June 2025)
- ML20237K334 + (02:58:22, 27 June 2025)
- TAC:55865 + (02:59:44, 27 June 2025)
- 05000458/LER-1985-032, :on 851103,fuel Bldg HVAC Normal Supply & Exhaust Sys Isolated & Div I ESF Charcoal Filter Train Auto Started.Caused by Spurious Low Flow Signal Being Generated by Div I Flow Switch.Switch Recalibr + (03:01:19, 27 June 2025)
- 05000341/LER-1987-019, :on 870523,standby Gas Treatment Sys Manual Actuation Puff Test Incorrectly Scheduled.Caused by Personnel Error.Program Revised to Reflect Correct Test Frequency + (03:03:31, 27 June 2025)
- 05000322/LER-1987-022, :on 870604,HPCI Recirculation Valves Failed During motor-operated Valve Dynamic Testing.Mod to Disc of MOV-37 to Alleviate Local Pressure build-up Implemented & as Contingency,Actuator Upgrade Purchased + (03:03:37, 27 June 2025)
- 05000338/LER-1987-017, :on 870715,unit Manually Tripped.Caused by Indications of Steam Generator Tube Rupture in Steam Generator C.Cooldown & Depressurization of RCS Conducted Per Station Emergency Operating Procedures + (03:03:58, 27 June 2025)
- 05000267/LER-1987-017, :on 870710 & 11,grab Samples Not Collected from Loop II Steam Generator Penetration Interspace.Caused by Personnel Error & Deficient Procedure.Procedure Changes Will Be Developed & Completed by 870831 + (03:06:57, 27 June 2025)
- 05000416/LER-1986-029, :on 860826,discovered Incorrect Flow Measuring Device Coefficient Used in Establishing Coolant Flow to ESF Electrical Switchgear Room Coolers Resulting in Low Flows. Caused by Ae Design Error.Pipes Flushed + (03:08:00, 27 June 2025)
- 05000267/LER-1986-019, :on 860506,unplanned Transient Increased Reactor Power Above Authorized Limit.Caused by Deficient Procedure Resulting in Valve Being Kept Open Too Long.Power Operation Limited.Special Procedures Issued + (03:08:08, 27 June 2025)
- 05000317/LER-1987-007, :on 870401,mgt Decided to Shutdown Facility from 100% Power,Mode 1 Operation,To Mode 5 (Less than 200 F).Extensive Insp Program Undertaken to Look in Detail at Equipment within Scope of 10CFR50.49 + (03:08:56, 27 June 2025)
- 05000271/LER-1987-003, :on 870724,resident Inspector Noted That Calibr Procedure for Toxic Gas Monitor Chlorine Analyzer Did Not Satisfy Tech Spec Setpoint Requirements.Caused by Procedural Inadequacy.Calibr Procedure Revised + (03:08:57, 27 June 2025)
- 05000413/LER-1986-057, :on 861024,determined That 53 Valves Motor Actuator Torque Switches May Have Been Set Incorrectly. Caused by Design,Mfg & Const/Installation Deficiency. Actuators Reset + (03:09:06, 27 June 2025)
- 05000302/LER-1987-007, Extends Projected Due Date for Suppl to LER 87-007-00 from 870730 to 871030.Extra Time Needed for Satisfactory Analysis of Event + (03:12:33, 27 June 2025)
- NUREG-1265, Forwards Agenda for NRC Research Meeting on Core Melt Progression Scheduled for 870901-03,NUREG-1265 & NUREG/CR-4883.W/o NUREGs + (03:13:06, 27 June 2025)
- TAC:59646 + (03:13:12, 27 June 2025)
- 05000327/LER-1987-039, :on 870710,potential for Single Failure of Main Control Room Normal Pressurization Sys Observed.Root Cause & Proposed Corrective Action Under Investigation.Suppl to Rept Will Be Submitted by 871204 + (03:14:10, 27 June 2025)
- 05000333/LER-1987-011, :on 870728,electrical Conduit Fire Barriers Not Sealed W/Three H Fire Rated Seal.Caused by Use of Incomplete List of Fire Barrier Penetrations.Three H Fire Seals in Unsealed Penetrations Installed + (03:16:44, 27 June 2025)
- 05000483/LER-1986-030, :on 860909,reactor Trip on Loop Low Flow Signal Occurred.Caused by Failure of Equalization Valve to Close During Restoration of Flow Transmitter to Svc.Work Request Written to Replace Manifold Valve + (03:18:32, 27 June 2025)
- 05000424/LER-1987-070, :on 871123 & 1203,surveillance of Quadrant Power Tilt Ratio within Max Allowable Time Extension Missed by 35 & 3 Minutes,Respectively.Caused by Control Room Supervisor Error.Personnel Counseled + (03:19:56, 27 June 2025)
- 05000302/LER-1997-025-02, Provides NRC W/Results of SW Study Florida Power Committed to Send Prior to 980828,in LAR & LER 97-025-02,dtd 980708 for Info Only + (03:20:30, 27 June 2025)
- TAC:L30812 + (03:21:41, 27 June 2025)
- 05000341/LER-1987-042, :on 870902,control Ctr HVAC Sys Shifted to Chlorine Mode W/No Chlorine Present.Cause Unknown. Availability & Design of Less Radio Frequency Sensitive Detectors Under Study.Radio Use Restricted + (03:24:57, 27 June 2025)
- 05000458/LER-1987-030, :on 871118,failure to Perform Temp Monitoring on Reactor Plant Component Cooling Water Sys Areas,Per Tech Spec 3.7.8 Discovered.Investigation of Cause Inconclusive. Surveillance Test Procedures Revised + (03:26:03, 27 June 2025)
- 05000293/LER-1998-018, :on 980722,noted That EDGs Were Inoperable Due to Ambient Air Temp Exceeding 88 F.Caused by Inadequate EDG Cooling & Bldg Ventilation Design.Will Develop EDG Cooling & Bldg Ventilation Mods W/Regard to Exceedance of Site Temp + (03:27:09, 27 June 2025)
- TAC:M99207 + (03:27:55, 27 June 2025)
- 05000285/LER-1998-009, :on 980722,WDS CIV Was Noted Outside Design Basis.Caused by Inadequate Design Interface W/Existing Sys. HCV-500A Was Repaired,Tested & Returned to Service on 980626 + (03:31:16, 27 June 2025)
- 05000336/LER-1998-005, :on 980318,HELB Deficiencies for Piping Inside Containment Was Noted.Caused by Inadequate Consideration of HELB Requirements.Rept Was Submitted to NRC Discussing Applicability of leak-before-break Methodology + (03:33:31, 27 June 2025)
- 05000302/LER-1987-029, :on 871118,determined That Monthly Surveillance for Liquid Process & Effluent Radiation Monitors Not Performed & Three Surveillances Exceeded by One Day.Caused by Personnel Error.Personnel Instructed + (03:33:34, 27 June 2025)
- 05000341/LER-1996-005, :on 960327,declared EECW Inoperable & TS Required Shutdown Commenced Due to Design Issue.Design Mod Implemented to Provide SR make-up Sources for Both make-up Water & Nitrogen to EECW make-up Tank + (03:34:32, 27 June 2025)
- 05000293/LER-1997-025, :on 971123,completion of Required Shutdown Was Noted Due to Two Inoperable Msivs.Cause of Failure of Vessel Flange Thermocouples Could Not Be Conclusively Determined. Rv Flange Thermocouples Will Be Restored + (03:35:00, 27 June 2025)
- 05000424/LER-1987-067, :on 871116,room Temp Reading of Auxiliary Bldg Room 110 Not Taken Per Tech Specs.Caused by Shift Supervisor Failure to Recognize Importance of Readings.Personnel Involved Counseled + (03:35:30, 27 June 2025)
- 05000213/LER-1987-018, :on 871120,motor-operated Valves Determined Not to Be in Qualified Configuration Declared Inoperable Due to Grease Installed in Motor Housing.Caused by Inadequate Maint Procedure & Technical Info + (03:36:06, 27 June 2025)
- 05000289/LER-1998-007, Forwards LER 98-007-00, Inoperable Intake Screen & Pump House Floor Drain Check Valves Due to Lack of Preventive Maint & Periodic Insps, Per 10CFR50.73.Rept Was Evaluated & Determined Reportable on 980720.W/o Encl + (03:36:33, 27 June 2025)
- 05000327/LER-1987-073, :on 871110,determined That Centrifugal Charging Pumps May Not Start Using Manual Handswitch & May Not Be Available to Mitigate Consequences of Postulated Accident. Caused by Inadequate Review of Design Info + (03:56:58, 27 June 2025)
- 05000361/LER-1998-015, :on 980717,non-isokinetic Sampling of Airborne Effluent Streams Occurred.Caused by Personnel Error. Procedures Revised + (03:59:44, 27 June 2025)
- 05000327/LER-1987-072, :on 871110,ESF Equipment Room Coolers Inadequate to Maintain Temps within Environ Qualification Profiles.Caused by Inadequate Design Control Program.Duct Work to Be Revised & Filtration Sys Installed + (04:00:16, 27 June 2025)
- 05000352/LER-1987-023, :on 870611,ESF Actuated Due to Failure of Battery Charger 1A1D103.Caused by Failure of Integrated Circuit Controller Card.Undervoltage Relays Mfg by Brown Boveri Corp Will Be Replaced + (04:00:17, 27 June 2025)
- 05000454/LER-1998-005, Forwards Revised LER 98-005-00 Which Corrects Errors Involving Incorrect LER Number on Pages 2 Through 5.No New Commitments Made within Submittal + (04:00:22, 27 June 2025)
- TAC:53416 + (04:02:55, 27 June 2025)
- 05000304/LER-1985-029, :on 851201,purge Isolation Occurred.Caused by Spurious Spike on Monitor 2RT-PR09C Due to Voltage Spiking on Ac Power Feed to Monitor.Permanent Ac Line Filter Will Be Installed on Power Feed for Monitor + (04:04:58, 27 June 2025)
- 05000456/LER-1996-010-01, :on 960821,noted Failure to Comply W/Design Basis.Caused by Degradation of Boraflex in Spent Fuel Racks. Implemented Controls on SFP Boron Concentration & Silica Concentration + (04:05:13, 27 June 2025)
- ML20237A951 + (04:05:25, 27 June 2025)
- TAC:M99205 + (04:06:00, 27 June 2025)