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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

• IR 05000461/1982002  + (02:17:20, 25 May 2025)
• ML20140D128  + (02:17:26, 25 May 2025)
• 05000424/LER-1997-004, :on 970322,declared Atmospheric Relief Valves (Arvs) Inoperable Due to Unqualified Cabling.Cause Unknown.Repaired ARV Splices & All Remaining ARVs in Both Units 1 & 2 Were Inspected  + (02:20:54, 25 May 2025)
• 05000336/LER-1996-029, :on 960715,discovered That Evaluation for Removal of Startup Rate Trip Feature Was Potentially non-conservative.Caused by Failure to Adequately Identify Design Basis Requirements.Modified Procedures  + (02:21:01, 25 May 2025)
• TAC:46102  + (02:21:21, 25 May 2025)
• ML20140C762  + (02:23:08, 25 May 2025)
• NSD-NRC-97-5161, Provides Responses to Three Open Items Re Structural Issues. Monitoring of Passive Containment CW Storage Tank,Membrane Forces in Shear Walls & Types of Stirrups Used in Basemat Slab Addressed.Rev 13 of AP600 SSAR Will Include Update  + (02:23:11, 25 May 2025)
• ML20140C699  + (02:23:31, 25 May 2025)
• 05000266/LER-1997-013, :on 970304,CCWS Found Not in Accordance W/ Plant Design Basis.Caused by Inoperable Valve Due to Overtorquing in Closed position.Cross-tie Will Be Resolved  + (02:25:15, 25 May 2025)
• ML20140C383  + (02:25:25, 25 May 2025)
• ML20140C328  + (02:25:45, 25 May 2025)
• ML20140C250  + (02:26:11, 25 May 2025)
• IR 05000244/1985018  + (02:26:37, 25 May 2025)
• IR 05000397/1985036  + (02:27:27, 25 May 2025)
• IR 05000083/1982001  + (02:27:31, 25 May 2025)
• 05000263/LER-1997-004, :on 970220,failure to Submit Relief Requests for Limited ISI Exams Discovered.Caused by Missed Interpretation of Sections.Required Relief Requests Will Be Submitted for Limited Exams Performed in Future  + (02:27:46, 25 May 2025)
• TAC:46909  + (02:27:51, 25 May 2025)
• TAC:54986  + (02:27:57, 25 May 2025)
• IR 05000206/1986004  + (02:28:12, 25 May 2025)
• 05000366/LER-1986-007, :on 860213,HPCI Steam Supply Outboard Isolation Valve 2E41-F002 Isolated Due to Unplanned Isolation Signal from Differential Pressure Transmitter.Caused by Defective Procedure.New Procedure Written  + (02:30:03, 25 May 2025)
• 05000323/LER-1985-022-01, :on 851221,automatic Reactor & Turbine Trips Occurred.Caused by Loose Wiring to Feedwater Regulating Valve Solenoid & Personnel Error Causing Momentary Opening of Connection.Connection Properly Terminated  + (02:30:12, 25 May 2025)
• ML20140B730  + (02:30:19, 25 May 2025)
• 05000219/LER-1985-019, :on 850821,nonconservative Direction of Main Steam Line High Flow Detectors of Established Setpoints Noted.Cause Undetermined.Correct Value Calculated,Reviewed & Implemented.Investigation Ongoing  + (02:30:20, 25 May 2025)
• 05000325/LER-1985-066, :on 851222,primary Containment Group 6 Isolation Occurred.Caused by Momentary Electrical Groundpath During Calibr of Reactor Bldg Ventilation Exhaust Radiation Monitor.Review Conducted  + (02:30:26, 25 May 2025)
• 05000374/LER-1986-004-04, :on 860216,reactor Scram Occurred,Resulting from Turbine Control Valve Fast Closure Following Offsite phase-to-phase Fault on Transmission Line 0101.Probably Caused by Missing Shorting Link  + (02:30:30, 25 May 2025)

• 05000374/LER-1986-003-05, :on 860217,after Completing Startup Procedures, Mode Switch Moved to Run Position Instead of Shutdown Position,Resulting in ESF Actuation.Caused by Personnel Error.Switch Correctly Positioned  + (02:30:32, 25 May 2025)

• 05000346/LER-1983-020-03, /03X-1:on 830428,pressurizer Sample Isolation Valve Failed to Close.Caused by Personnel Error & Inadequate Maint Procedures.Torque Switch Reset,Valve Stem Cleaned & Lubricated & Maint Order 1-83-3114-00 Rewritten  + (02:30:39, 25 May 2025)
• ML20140B685  + (02:30:45, 25 May 2025)
• ML20140B676  + (02:30:49, 25 May 2025)
• ML20140B601  + (02:31:13, 25 May 2025)
• ML20140B576  + (02:31:22, 25 May 2025)
• ML20140B572  + (02:31:25, 25 May 2025)
• ML20140B546  + (02:31:32, 25 May 2025)
• 05000295/LER-1997-013-02, :on 970412,VT-3 Insp Requirements of Relief Request CR-13 for Reactor Head Bolting Were Not Performed. Caused by Failure to Revise ISI Database After SER Received from Nrc.Procedure Revised  + (02:32:13, 25 May 2025)
• 05000382/LER-1997-012, :on 970404,programmatic Breakdown of Overtime Program Occurred.Caused by Lack of Mgt Oversight in Administering & Implementing Plants Working Hour Policy. Ltr Issued Reemphasizing Working Hour Policy  + (02:32:40, 25 May 2025)
• ML20140B312  + (02:32:53, 25 May 2025)
• 05000295/LER-1997-014-02, :on 970502,TS Surveillances on Radiation Monitors Were Missed Because Technical Interpretation That Kept 1(2)RT-PR15 Operable Was Inoperable.Revised Station Procedures  + (02:33:06, 25 May 2025)
• ML20140B224  + (02:33:18, 25 May 2025)
• 05000278/LER-1985-029-01, :on 851213,RWCU Sys Isolated & Pump Tripped While Sys in Operation.Caused by Blown Fuse in RWCU Sys Logic.Fuse Replaced  + (02:33:31, 25 May 2025)
• 05000362/LER-1986-002, :on 860212,w/core Protection Calculator Channels a & D Inoperable,Period of Greater than 2 H Elapsed Before Appropriate Channels Bypassed/Tripped.Caused by Miscommunication.Work Request Process Changed  + (02:33:38, 25 May 2025)
• 05000270/LER-1985-008-04, :on 851214,unit Placed in Hot Shutdown Due to Unidentified RCS Leakage Greater than 1 Gpm,Per Tech Spec 3.1.6.Caused by Instrument Root Valve Packing Gland Failure. Valve Replaced  + (02:33:40, 25 May 2025)
• 05000255/LER-1985-029, :on 851204,results of Surveillance Test for Local Leak Rate Testing Indicated That Leak Rate Outside Tech Spec Limits.Cause Unknown.Repair of Primary Coolant Sample Valves Performed  + (02:33:43, 25 May 2025)
• 05000254/LER-1997-003-05, :on 970429,visual Exam (VT-2) Was Not Performed Due to Procedural Deficiencies Following HPCI Sys Valve Replacement Required by Asme,Section XI & TS Section 4.0.E. Examined VT-2 of 1-2301-45 Valve  + (02:33:53, 25 May 2025)
• 05000416/LER-1986-005, :on 860215,heater for Filter Train B Found to Dissipate Approx 44.9 Kw,Violating Tech Spec Min Requirement of 45 Kw.Caused by Failure to Submit Tech Spec Change When Design Change Implemented.Tech Specs Revised  + (02:34:01, 25 May 2025)
• 05000338/LER-1986-002-03, :on 860223,reactor/turbine Trip Occurred from 100% Power.Caused by Turbine Control Sys Malfunction.Exact Cause Undetermined.Sys Tested Satisfactory & Unit Restarted  + (02:34:09, 25 May 2025)
• 05000244/LER-1986-002, :on 860216,two Motor Operated Valves Required to Be Operable for Refueling Discovered Inoperable Due to 480-volt Bus 14 Outage.Caused by Lack of Tech Spec Clarity. Procedures Reviewed & Modified  + (02:34:13, 25 May 2025)
• 05000296/LER-1985-017, :on 850716,RHR Sys Declared Inoperable Following Discovery of Broken Hanger & Damaged Snubber on Torus Return Line.Caused by Low Cycle Fatigue Due to RHR Sys Piping Vibration.Injection Valve Modified  + (02:34:19, 25 May 2025)
• ML20140B094  + (02:34:20, 25 May 2025)
• ML20140B070  + (02:35:22, 25 May 2025)
• 05000250/LER-1985-043, :on 851217,emergency Diesel Generator a Declared out-of-svc W/Generator B out-of-svc for Replacement of Control Cabinet Selector Switch.Caused by Erroneously Recorded High Temp Reading on Pyrometer  + (02:35:24, 25 May 2025)
• 05000260/LER-1985-020-02, :on 851220,mgt Notified That Eight Local Reactor Protection Sys Panels Not Constructed Per Design Drawings.Caused by Failure to Properly Document Actual Constructed Configuration During Const  + (02:35:30, 25 May 2025)