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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

• 05000328/LER-1983-006-03, /03L-0:on 830119,while in Mode 1,one Main Feedwater Flow Channel 2-FT-3-90A Failed High.Caused by Frozen Sense Line,Due to Incorrect Location of Heat Tracing Thermocouples.Thermocouples Relocated  + (13:45:00, 16 December 2024)
• ML20071B626  + (13:45:01, 16 December 2024)
• 05000327/LER-1983-014-03, /03L-0:on 830122,kW Meter for Hydrogen Recombiner Read Offscale High.Caused by Failed Active Filter LZF1-271105 Due to Aging.Filter & Potentiometer Replaced  + (13:45:03, 16 December 2024)
• 05000416/LER-1983-036-03, /03L-0:on 830124,heater Element in Steam Generator for Humidifier Section of Control Room Air Conditioning Sys B Train Found Arcing.Caused by Mineral Deposits from Makeup Water.Generator Cylinders Replaced  + (13:45:08, 16 December 2024)
• 05000328/LER-1983-006, Forwards LER 83-006/03L-0  + (13:45:09, 16 December 2024)
• 05000416/LER-1983-036, Forwards LER 83-036/03L-0  + (13:45:10, 16 December 2024)
• 05000327/LER-1983-014, Forwards LER 83-014/03L-0  + (13:45:11, 16 December 2024)
• 05000416/LER-1983-016-03, /03L-0:on 830124,during Cold Shutdown,Supervision Sys for fire-rate Door OC517 Alarmed & Would Not Reset W/ Door Closed.Door Declared Inoperable.Cause Unknown.Sys Declared Operational 1 Wk Later & Door Restored  + (13:45:19, 16 December 2024)
• ML20071B603  + (13:45:20, 16 December 2024)
• 05000416/LER-1983-016, Forwards LER 83-016/03L-0  + (13:45:21, 16 December 2024)
• 05000313/LER-1983-003, Forwards LER 83-003/03L-0  + (13:45:22, 16 December 2024)
• 05000416/LER-1983-035-01, /01T-0:on 830209,performance of Previous Refueling Interlock Surveillance Procedure Found to Violate Tech Specs Since Reactor Mode Switch Placed in Startup/Hot Standby Position.Cause Not Stated.Procedure Changed  + (13:45:24, 16 December 2024)
• 05000346/LER-1983-004-03, /03L-0:on 830119,during Cooldown,Jumper on Pressure Switch PSH-RC2B4 Had Been Left in Place Since 820823.Caused by Lack of Administrative Control & Design Error.Procedure Rewritten to Provide Adequate Switch  + (13:45:26, 16 December 2024)
• 05000416/LER-1983-035, Forwards LER 83-035/01T-0  + (13:45:27, 16 December 2024)
• ML20071B588  + (13:45:27, 16 December 2024)
• 05000346/LER-1983-004, Forwards LER 83-004/03L-0  + (13:45:28, 16 December 2024)
• B10698, Forwards Addl Info Re Measurement Uncertainties Per NRC .Process Equipment Installed During Cycle 4/5 Refueling Outage Provided Excellent Operating Characteristics of Modified Channels W/Minimal Drift  + (13:45:29, 16 December 2024)
• 05000416/LER-1983-025-03, /03L-0:on 830124,auxiliary Bldg Equipment Hatch on Elevation 166 Ft Removed.Caused by Deliberate Personnel Action to Allow Transport of Neutron Source Into Containment.Equipment Hatch Replaced  + (13:45:31, 16 December 2024)
• ML20071B579  + (13:45:32, 16 December 2024)
• 05000346/LER-1983-003-03, /03L-0:on 830119,MSIV MS100 Failed to Shut Completely Following Reactor Trip on 830118.Cause Unknown. Valves Disassembled & Inspected W/No Problems Found.Valve Tested & Returned to Svc  + (13:45:34, 16 December 2024)
• 05000416/LER-1983-025, Forwards LER 83-025/03L-0  + (13:45:35, 16 December 2024)
• ML20071B572  + (13:45:36, 16 December 2024)
• 05000346/LER-1983-003, Forwards LER 83-003/03L-0  + (13:45:40, 16 December 2024)
• 05000269/LER-1983-003-03, /03L-0:on 830120,engineering Safeguards Channels A,B & C Reactor Bldg narrow-range Pressure Transmitter Drifted Out of Calibr.Caused by Deficient Procedures. Channels Recalibr & Procedures Changed  + (13:45:42, 16 December 2024)
• 05000336/LER-1983-001-03, /03L-0:on 830121,plant Computer Malfunctioned & Declared Inoperable.Caused by Defective Seek Relay Drive Card.Card Replaced & Computer Operation Restored  + (13:45:48, 16 December 2024)

• 05000269/LER-1983-003, Forwards LER 83-003/03L-0.Detailed Event Analysis Encl  + (13:45:52, 16 December 2024)

• ML20071B552  + (13:46:02, 16 December 2024)
• ML20071B554  + (13:46:02, 16 December 2024)
• W3P83-0401, Confirms Transmittal of Repts of Deficiencies on Equipment Qualification During Jan 1983 Audit,In Response to NRC 830128 Request.Transmittal Sufficient to Close Out Audit Item 25  + (13:46:03, 16 December 2024)
• ML20071B542  + (13:46:04, 16 December 2024)
• 05000255/LER-1983-007-01, /01T-0:on 830204,during Review of SEP Topics Following LOCA W/Concurrent Loss of Either Diesel Generator, Determined Only One Fan in Each Engineering Safeguards Room Cooler Would Operate.Caused by Design Deficiency  + (13:46:08, 16 December 2024)
• ML20071B535  + (13:46:10, 16 December 2024)
• 05000255/LER-1983-007, Forwards LER 83-007/01T-0  + (13:46:14, 16 December 2024)
• 05000285/LER-1983-001-03, /03L-0:on 830119,during Refueling Outage,Setpoint for One Pressurizer Code Safety Relief Valve Found Beyond Tech Specs.Caused by Instrument Drift.Valve Readjusted  + (13:46:17, 16 December 2024)
• ML20071B527  + (13:46:18, 16 December 2024)
• 05000255/LER-1983-006-01, /01T-0:on 830204,during Ae Review of SIRWT Support Structure,Discrepancies Between Support Structure & as-built Documents Noted.Caused by Failure to Document Const Changes in as-built Documentation.Mods Underway  + (13:46:20, 16 December 2024)
• 05000315/LER-1982-058, Forwards Updated LER 82-058/03X-1  + (13:46:21, 16 December 2024)
• 05000285/LER-1983-001, Forwards LER 83-001/03L-0  + (13:46:26, 16 December 2024)
• 05000373/LER-1983-005, Forwards LER 83-005/01T-0  + (13:46:27, 16 December 2024)
• ML20071B513  + (13:46:28, 16 December 2024)
• 05000259/LER-1983-006-01, /01T-0:on 830205,following Reactor Scram,Main Steam Relief Valve 1-1-22 Manually Opened & Failed to Close. on 830208,valve Opened at 178 Psig.Caused by Excessive Pilot Valve Leakage & Broken Bracket for Pilot Inlet Tube  + (13:46:29, 16 December 2024)
• ML20071B504  + (13:46:30, 16 December 2024)
• 05000316/LER-1983-021-03, /03L-0:on 830122,component Cooling Water West HX Outlet to Miscellaneous Svcs Valve (CMO-416) Failed to Operate within Inservice Insp Time Limitations.Cause Unknown.Valve Packing & Bushings Lubed & Exercised  + (13:46:36, 16 December 2024)
• 05000316/LER-1983-020-03, /03L-0:on 830119,during Startup Operations,Steam Generator 2 Stop Valve MRV-220 Found W/One Pillar Guide Bearing Displaced.Cause Undetermined.Split Ring Retainers Fabricated & Tack Welded Into Position  + (13:46:38, 16 December 2024)
• 05000316/LER-1983-019-03, /03L-0:on 830118,during Normal Operation,Auxiliary Cable Vault (Zone 11) Experienced Inadvertent Carbon Dioxide Discharge W/Detector Alarming.Caused by Moisture in Base. Moisture Removed & Sys Returned to Svc  + (13:46:40, 16 December 2024)
• ML20071B496  + (13:46:41, 16 December 2024)
• 05000316/LER-1983-003-03, /03L-0:on 830119,during Heatup,Pressurizer Pressure Channel I Indicated Approx 35 Psi Higher than Normal.Caused by Pressure Transmitter NPP-151 Calibr Drifting High by Approx 25 Psi.Transmitter Calibr  + (13:46:43, 16 December 2024)
• 05000259/LER-1983-006, Forwards LER 83-006/01T-0  + (13:46:44, 16 December 2024)
• 05000316/LER-1983-001-03, /03L-0:on 830122,during Overspeed Testing of Main Turbine,Centrifugal Overspeed Trip Device Failed to Operate at 110% & 112% Trip Points.Caused by Worn Area Between Governor Weight & Distance Ring.Rings & Weights Replaced  + (13:46:47, 16 December 2024)
• 05000250/LER-1983-002-03, /03L-0:on 830118,during Third & Fourth Quarters 1982,testing of Diesel Fuel Storage Tank Samples for Viscosity,Water & Sediment Levels Missed.Caused by Oversight.Sample Taken & Analyzed.Levels Acceptable  + (13:46:50, 16 December 2024)
• ML20071B487  + (13:46:51, 16 December 2024)