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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
- 05000267/LER-1980-041-03, During Testing,One of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:14, 26 May 2025)
- 05000267/LER-1980-034-03, During Testing,Two of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:17, 26 May 2025)
- 05000267/LER-1980-026-03, During Testing,Eight of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:20, 26 May 2025)
- 05000267/LER-1980-016-03, During Testing,Four of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:23, 26 May 2025)
- L-02-013, Structural Evaluation of Arkansas Nuclear One-Unit 2 Spent Fuel Storage Facility for Consolidated Fuel Storage + (14:02:30, 26 May 2025)
- 05000267/LER-1979-056-03, During Testing,Seven of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Tripped Outside Limits.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:37, 26 May 2025)
- 05000267/LER-1979-032-03, During Testing,Four of 12 Helium Circulator Seal Malfunction Pressure Differential Switch Units Would Not Trip.Caused by Dirt Accumulation in Electrical Switches.Switches Replaced + (14:02:42, 26 May 2025)
- 05000336/LER-1983-020, :Ongoing Eddy Current Exams Identified Number of Steam Generator Tubes W/Defects Which Required Both Steam Generators to Be Placed in C-3 Insp Category.Frequency of Occurrence Primarily on Cold Leg Side + (14:02:45, 26 May 2025)
- 05000416/LER-1982-172-99, Penetration AE154C in Auxiliary Bldg Opened to Perform Planned Maint.Penetration Opened to Pull Cable Through.Limiting Condition for Operation Initiated & Hourly Fire Watch Established + (14:03:06, 26 May 2025)
- 05000296/LER-1982-064-03, Radiochemcial Lab Personnel Discovered Inlet Sample Hose on 3-90-250 Turbine & Reactor Zone Exhaust CAM Disconnected.Cause Unknown.Hose Reconnected + (14:04:03, 26 May 2025)
- 05000272/LER-1983-023-01, /01T-0:on 830602,notification Received from Westinghouse Re Potential Increased Power Peaking in Bottom of Core.Procedures Will Be Implemented to Insure Operation within Tech Spec Limits + (14:04:19, 26 May 2025)
- 05000368/LER-1983-025-01, /01T-0:on 830615,determination Made That Since 830517,one Rdt in RCS Degraded to Point That Effective Rdt Time Constant of Core Protection Calculator,Channel D Not Adequately Compensated Per Tech Specs + (14:05:27, 26 May 2025)
- 05000373/LER-1983-054-03, /03L-0:on 830520,drywell Air & Suppression Chamber Air/Water Temp Functional Test Discovered Not Performed Since 820427.Caused by Personnel Failure to Incorporate Test in Computerized Surveillance Program + (14:06:24, 26 May 2025)
- ML20072E512 + (14:06:26, 26 May 2025)
- 05000454/LER-1994-006-04, :on 940715,fuel Assembly Located in Wrong Region of Spent Fuel Pool Due to Personnel Error.Nuclear Matl Custodian & Individual That Performed Independent Verification Counseled + (14:06:31, 26 May 2025)
- L-94-024, Forwards Unit 1 Refueling 21 ISI Summary Rept, Per ASME Section XI,IWA-6230 + (14:06:39, 26 May 2025)
- 05000267/LER-1983-009-01, /01T-0:on 830223,four Masonry Walls Found to Have Inadequate Structural Strength to Withstand Design Criteria Load Combination.Caused by Lack of Dur-O-Wall.Mod Reinforcing Walls W/Steel Bar Straps Completed + (14:06:47, 26 May 2025)
- 05000272/LER-1983-017-03, /03L-0:on 830215,containment Sump Pumps 11 & 12 Found Running Continuously.To Prevent Damage,Pumps de-energized & Tagged Out.Caused by Level Detector LD-7749 Malfunctioning Due to Binding in Magnetic Sleeve Assembly + (14:06:48, 26 May 2025)
- 05000317/LER-1983-011-03, /03L-0:on 830212,during Mode 1,refueling Water Tank Level Decreased Below Tech Specs Limit.Caused by Failure of Operating Instruction to Require Shutting of Spent Fuel Pool Pump 11 Suction.Instruction Corrected + (14:06:53, 26 May 2025)
- ML20072E187 + (14:06:58, 26 May 2025)
- ML20072E158 + (14:07:01, 26 May 2025)
- ML20072E142 + (14:07:04, 26 May 2025)
- 05000318/LER-1983-012-03, /03L-0:on 830211 & 0306,dose Equivalent I-131 Exceeded 1.0 Mci/G.Caused by Iodine Spiking Due to Small Number of Leaking Fuel Pins & Change in Power Level. Frequency of Sampling Increased Until Levels Decreased + (14:07:08, 26 May 2025)
- 05000321/LER-1981-018-01, During Refueling Shutdown/Mod Outage,Cracks Discovered in Concrete Wall Around Base Plate of Beam B2 in Northeast Diagonal.Caused Unknown.Beam B2 Resupported + (14:07:11, 26 May 2025)
- 05000267/LER-1983-005-03, /03L-0:on 830207,reactor Dewpoint Exceeded Limits. Caused by Buffer Helium Sys Upset Due to 830128 Trip. Dewpoint Reduced W/Helium Purification Sys + (14:07:14, 26 May 2025)
- 05000321/LER-1981-018, Forwards Updated LER 81-018/01X-1 + (14:07:16, 26 May 2025)
- 05000250/LER-1983-003-03, /03L-0:on 830128,local Indication of Emergency Diesel Generator B Showed Low Starting Air Pressure of 150 Psig.Caused by Loose Tension Spring Nut on Low Starting Air Pressure Alarm Sensing Switch.Setpoint Adjusted + (14:07:21, 26 May 2025)
- 05000416/LER-1983-043-03, /03L-0:on 830131,smoke Detectors for Upper Cable Spreading Room in Control Bldg (Zone 1-23) Alarmed & Would Not Reset.Possibly Caused by Dust in Detector.Detector Cleaned & Return to Svc + (14:07:27, 26 May 2025)
- 05000272/LER-1983-016-03, /03L-0:on 830211,containment Air Particulate Monitor Indicated off-scale Low.Caused by Signal Lead to Scintillation Detector Open in Detector Cable Connector. Cable Apparently Strained During Maint.Connector Replaced + (14:07:35, 26 May 2025)
- ML20072D954 + (14:07:41, 26 May 2025)
- 05000366/LER-1980-113, Forwards Updated LER 80-113/03X-1 + (14:07:43, 26 May 2025)
- 05000327/LER-1983-018-03, /03L-0:on 830201,containment Internal Differential Pressure Exceeded 0.3 Psig Relative to Annulus Pressure. Caused by Failure of Emergency Gas Treatment Sys Suction Damper to Open Causing High Vacuum in Annulus + (14:07:48, 26 May 2025)
- 05000364/LER-1983-009-03, /03L-0:on 830217,pressurizer PORV 444B Declared Inoperable When Pressurizer Pressure Controller Card 444A Failed Low.Caused by Failure of Driver Card.Porv 444B Declared Operable Following Calibr & Replacement of Card + (14:07:50, 26 May 2025)
- 05000321/LER-1983-007-03, /03L-0:on 830218,HPCI Turbine Would Not Trip at Less than 5,000 Rpm.Caused by Chipped Ball on ball-tappet assembly.Ball-tappet Assembly Replaced + (14:07:52, 26 May 2025)
- 05000339/LER-1983-015-03, /03L-0:on 830202,ESF P-12 Interlock Reset Value Found Out of Limit High on One of Three Channels.Caused by Erratic & Sensitive Potentiometer on Comparator Card TC-432E.Card Replaced + (14:07:57, 26 May 2025)
- 05000275/LER-1983-005-04, /04X-0:on 830502,prior to Fuel Load & Following Coalinga Earthquake,Unusual Event Declared Based on Earthquake Motion Felt at Plant w/.5 G Full Upscale Indication.Caused by Faulty Reset Switch + (14:08:00, 26 May 2025)
- 05000324/LER-1982-064-03, While Performing Diesel Generator 3 Monthly Load test,PT-12.2C,diesel Tripped & Locked Out Due to Increase in Temp.Caused by Closed Diesel Jacket Water HX Inlet Valve.Valve Reopened + (14:08:01, 26 May 2025)
- 05000325/LER-1983-007-03, During Extended Refueling Outage,One Fuel Bundle Located Around Control Rods 22-15, 34-23,34-27 & 26-43.Caused by Procedual Inadequacy.Rods Inserted & Procedure Revised + (14:08:06, 26 May 2025)
- 05000373/LER-1983-006-01, Cracks Discovered in MSIV 1B21-F028A Drain Line Weld.Caused by Improper Weld Application.Weld Repaired.New Weld Ground Down to Eliminate Notches Between Passes & Magnetic Particle Tested + (14:08:12, 26 May 2025)
- 05000324/LER-1982-064, Forwards Updated LER 82-064/03L-1 + (14:08:14, 26 May 2025)
- 05000316/LER-1983-026-01, /01T-0:on 830224,containment Fire Detection Sys Surveillance Had Not Been Performed within Required Allowable Time.Caused by Personnel Error.Computer Scheduling Updated to Include All Control & Surveillance Tests + (14:08:22, 26 May 2025)
- 05000366/LER-1983-011-03, /03L-0:on 830210,during Shift Surveillance Check Procedure,Drywell Torus Temp Recorder Found Inoperable. Caused by Failed Internal Parts.Parts Replaced + (14:08:29, 26 May 2025)
- 05000366/LER-1983-009-03, /03L-0:on 830212,RCIC Trip & Throttle Valve Failed to Manually Trip.Caused by Failed Torque Switch in Limitorque Valve Operator.Torque Switch Replaced.Rcic Trip & Throttle Valve Reset + (14:08:33, 26 May 2025)
- 05000362/LER-1983-038-03, /03L-0:on 830511,spray Sys Protecting Cable Tunnel Section 3 Declared Inoperable When Internals to Deluge Panel 3TSH8951 Found Corroded.Caused by Water Intrusion Due to Improper Closure of Panel + (14:08:36, 26 May 2025)
- 05000275/LER-1983-009-03, /03L-0:on 830505,power Switch to Plant Vent Iodine Sampler (RE-24) Found in Off Position.Power Switch Inadvertently Moved to Off Position During Const.Const Personnel Cautioned + (14:08:38, 26 May 2025)
- 05000335/LER-1983-006-03, /03L-0:on 830121,during Periodic Control Element Assembly (CEA) Exercise,Cea 43 Slipped.Cause Not Determined. CEA 45 Has Operated Normally Since Event + (14:08:42, 26 May 2025)
- 05000321/LER-1983-011-03, /03L-0:on 830204,during Performance of Sys Walkdown,Circuit Which Supplies Essential Control Power to Trip Circulating Water Pump Feeder Breakers Found Terminated.Caused by Improper Const Installation + (14:08:47, 26 May 2025)
- 05000348/LER-1983-006-01, /01T-0:on 830215,both Trains of Common Control Room Filtration Unit Penetration Room Filtration Sys Carbon Filters Train a Failed to Meet Criteria for Iodine Removal Efficiency.Caused by Misinterpretation of Reg Guide 1.52 + (14:08:50, 26 May 2025)
- 05000324/LER-1983-017-03, /03L-0:on 830126,during Standby Gas Treatment Sys Heater Check,One Heater Element in Treatment Sys a Found Inoperable.Caused by Damaged Power Supply Cable Terminal Lug Ring.Lugs Checked for Proper Tightness + (14:08:52, 26 May 2025)
- 05000327/LER-1994-012, :on 940715,discovered That Containment Bldg Penetration Surveillance Not Implemented in Instructions as Required by TS SR 4.9.4.Caused by Inadequate Procedure Rev. Surveillance Instructions Revised + (14:08:54, 26 May 2025)
- 05000327/LER-1994-011, :on 940715,manual Reactor Trip Was Initiated Due to Loss of Reactor Coolant Pump.Caused by Personnel Error.Failed Components Were Replaced & Controller Was Tested,Calibrated & Returned to Service + (14:08:58, 26 May 2025)