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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

• ML20141N858  + (00:40:09, 25 May 2025)
• 05000255/LER-1986-010, :on 860209,pipe Support Discovered Missing from Integrated Leak Rate Test Instrument Line.Cause Assumed to Be Removal of Hanger During Removal of Integrated Leak Rate Test Instrumentation Panel in 1981  + (00:41:32, 25 May 2025)
• TAC:60187  + (00:43:29, 25 May 2025)
• IR 05000271/1985040  + (00:44:32, 25 May 2025)
• TAC:48652  + (00:45:21, 25 May 2025)
• L-92-229, Forwards Rev 14 to Training & Qualification Plan, Per 10CFR50.54(p)  + (00:46:31, 25 May 2025)
• 05000416/LER-1992-009, :on 920509,determined That Fuel Assemblies Exhibited Greater than Expected Closure of Compression Springs.Cause Unknown & Investigation by Siemens Nuclear Power Corp Underway  + (00:46:45, 25 May 2025)
• 05000285/LER-1992-026, :on 920723,discovered That in-core Neutron Flux Monitoring Sys Alarm Limit Set Nonconservatively.Caused by Contractor Failing to Detect Error & Inadequate Verification Procedure.Recalculated Alarm Limits Installed  + (00:46:49, 25 May 2025)
• 05000263/LER-1992-010, :on 920725,discovered That Four Valves Used to Mitigate Consequences of HELB Not Included in ASME Section XI Testing Program.Caused by Failure to Include Emergency Svc Water Valves in Aop.Aops Revised  + (00:46:55, 25 May 2025)
• TAC:M73978  + (00:47:19, 25 May 2025)
• ML20141M328  + (00:47:31, 25 May 2025)
• NUREG-1409, 4/28/2020, Recording of Summary of Category 3 Meeting Regarding Draft NUREG-1409, Revision 1, Backfitting Guidelines.Pdf  + (00:49:40, 25 May 2025)
• EPID:L-2019-LLR-0099  + (00:50:30, 25 May 2025)
• 05000293/LER-1997-009, :on 970417,RCIC Sys Became Inoperable.Caused by Gear Change in Motor Operator of RCIC Sys Flow Test Valve. RCIC Sys Procedures for Potential Rev Reviewed  + (00:50:37, 25 May 2025)
• 05000346/LER-1986-003, :on 851213,discovered That Commitment to Reduce Electrical Bus Voltage Upon Receipt of Essential Bus C1 or D1 Overvoltage Alarm Not Implemented.Caused by Design Documents Not Reflecting Commitment  + (00:52:50, 25 May 2025)
• ML20141K478  + (00:52:52, 25 May 2025)
• 05000346/LER-1983-039-03, /03X-1:on 830726,discovered That W/Hand Wheel for Containment Personnel Hatch Inner Door in Shut Position, Door Partially Open.Caused by Design Error.Personnel Lock Repaired & Returned to Operable Status  + (00:53:07, 25 May 2025)
• 05000346/LER-1981-067-03, /03X-1:on 811022,latch on Outer Personnel Lock Area Outer Door Went to Shut Position But Did Not Shut & Inner Door Opened.Caused by Excessive Bearing Wear Due to Design Deficiency.Damaged Camrol Replaced  + (00:53:11, 25 May 2025)
• ML20141K425  + (00:53:18, 25 May 2025)
• ML20141K133  + (00:54:19, 25 May 2025)
• ML20141J923  + (00:55:05, 25 May 2025)
• ML20141J889  + (00:55:10, 25 May 2025)
• ML20141J828  + (00:55:21, 25 May 2025)
• ML20141J656  + (00:56:19, 25 May 2025)
• ML20141J539  + (00:57:06, 25 May 2025)

• 05000461/LER-1997-019, :on 860929,switchgear Heat Removal Sys Fan Discharge Damper Control Circuit Routed Through MCR Was Not Per Design Basis Due to Design Error.Installed Temporary Mod to Disconnect Damper Indication to MCR  + (00:57:20, 25 May 2025)

• 05000461/LER-1997-017, :on 970613,failed to Properly Calibrate MSL Radiation Monitoring.Caused Because Design Document That Provided Setpoints to Be Used Prior to Startup Did Not Address Need to Recalibrate Monitors.Revised Procedure  + (00:57:25, 25 May 2025)
• 05000331/LER-1996-007, :on 961203,three MSRVs & One MSSV Failed to Meet TS Setpoints.Caused by Insufficient Tolerance Associated W/Relief Valve Setpoint Acceptance Criteria.Out of Tolerance MSRVs & MSSV Were Restored to within TS LSSS  + (00:57:52, 25 May 2025)
• ML20141J391  + (00:58:06, 25 May 2025)
• 05000341/LER-1997-009, :on 970417,literal Wording of TS Requirement Had Not Historically Been Considered Prior to Proceeding Into Operational Conditions 1,2 & 3.Caused by Lack of Clarity in Ts,Ts Bases & Procedures.Revised Procedures  + (00:58:51, 25 May 2025)
• ML20141H958  + (01:00:05, 25 May 2025)
• 05000295/LER-1997-010, :on 960316,reactor Trip Due to Equipment Failure Occurred.Caused by New But Defective Pneumatic Vol Booster on Valve.Pneumatic Vol Booster for 1C Main FW Regulating Valve Replaced  + (01:02:00, 25 May 2025)
• 05000285/LER-1997-003, :on 970421,manual Reactor Trip Occurred Due to Steam Line Rupture Caused by Flow-Accelerated Corrosion. Replaced Ruptured Extraction Steam Pipe & Inspected Large Radius Carbon Steel Sweeps in Piping  + (01:02:24, 25 May 2025)
• NUREG-0420, Forwards Sser 9 (NUREG-0420).W/o Encl  + (01:02:39, 25 May 2025)
• NUREG-1065, Forwards Initial Review Comments on Aug 1985 Fundamental Matl Control (Fnmc) Plan,Partially Discussed in 851113 Meeting.Rev & Resubmittal,W/Greater Level of Detail,Needed Per NUREG-1065  + (01:08:35, 25 May 2025)
• ML20141H005  + (01:09:01, 25 May 2025)
• ML20141G991  + (01:09:05, 25 May 2025)
• ML20141G943  + (01:09:17, 25 May 2025)
• ML20141G921  + (01:09:25, 25 May 2025)
• ML20141G782  + (01:10:15, 25 May 2025)
• 05000341/LER-1997-012, :on 970603,voluntary Rept Re Surveillance Testing of Recirculation Sys Overspeed Stops Was Performed. Caused by Conflict Re TS SR 4.4.1.1.2.MG Set Mechanical & Electric Stops Adjusted Downward within 4.4.1.1.2 Limits  + (01:11:05, 25 May 2025)
• ML20141G447  + (01:11:47, 25 May 2025)
• 05000423/LER-1997-029, :on 970417,design Basis Concern on SGTR Analysis for Main Steam Pressure Relief Bypass Valves, Determined.Caused by Failure to Recognize Design & Single Failure Requirements.Ts Change Request Submitted by 970615  + (01:11:55, 25 May 2025)
• 05000423/LER-1997-028, :on 970410,potential Loss of Net Positive Suction Head Door Recirculation Spray Sys Pumps,Identified. Caused by Inadequate Review & Process Control.Recirculation Spray Sys Restored to Compliance W/Npsh Design Basis  + (01:12:11, 25 May 2025)
• TAC:M59009  + (01:13:18, 25 May 2025)
• TAC:M73979  + (01:17:00, 25 May 2025)
• ML20141F867  + (01:17:15, 25 May 2025)
• 05000423/LER-1997-017-01, Forwards LER 97-017-01,documenting an Event That Occurred at Millstone Nuclear Power Station,Unit 3 on 970206.Commitments Made within Ltr,Encl  + (01:18:43, 25 May 2025)
• 05000423/LER-1996-049-01, Forwards LER 96-049-01,documenting an Event That Occurred at Mnps,Unit 3 on 961211.Commitments Made within Ltr,Encl  + (01:18:58, 25 May 2025)
• ML20141F378  + (01:19:29, 25 May 2025)
• TAC:M96426  + (01:19:30, 25 May 2025)