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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

• 05000483/LER-1984-011, :on 840704,containment Purge Isolation & Control Room Ventilation Isolation Signals Actuated by Radiation Alarm from Loss of Power to Radiation Elements GT-RE-31 & 33.Info Deleted  + (23:59:23, 25 May 2025)
• ML20107K735  + (23:59:34, 25 May 2025)
• ML20107K710  + (23:59:36, 25 May 2025)
• 05000298/LER-1984-011, :on 840828,HPCI Overspeed Trip Control Valve Diaphragm Failed.Caused by Problem W/Procurement of Valve Diaphragms for Subj Control Valve Application. Preventative Maint Instituted  + (23:59:44, 25 May 2025)
• 05000259/LER-1985-002-03, :on 850124,all Eight Diesel Generators & Core Spray Pumps 3A & 3C Started During Performance of Core Spray Logic Functional Surveillance Instruction.Caused by Personnel Error.Personnel Cautioned  + (23:59:47, 25 May 2025)
• 05000301/LER-1984-004-01, :on 840928,inadvertent Reactor Protection Sys Trip Occurred When Instrument Fuses for Source Range Channel 31 Removed W/O Bypassing Trip Function.Caused by Personnel Error  + (23:59:50, 25 May 2025)
• 05000313/LER-1984-005-01, :on 841005,automatic Reactor Trip Occurred Due to Loss of Power to Two Reactor Coolant Pumps.Caused by Janitor Accidentally Bumping Handswitch on Feeder Breaker from Unit Auxiliary Transformer  + (23:59:52, 25 May 2025)
• 05000313/LER-1982-005-03, /03X-1:on 820227,diesel Generator 2 Failed to Start During Monthly Surveillance Test.Caused by Turbocharger Failure Due to Failed Compressor Bearing,Thrust Bearing & Seals.Turbocharger Replaced  + (00:00:01, 26 May 2025)
• DCL-84-268, Revised Emergency Plan Implementing Procedures,Including OP-0 Re Reactor Trip W/Safety injection,OP-1 Re LOCA,OP-2 Re Loss of Secondary Coolant & OP-3A Re Steam Generator Tube Failure.Related Correspondence.Proprietary Info Deleted  + (00:00:08, 26 May 2025)
• 05000373/LER-1984-062-01, :on 840930,shutdown Cooling Suction Inboard Isolation Valve 1E21-F009 Failed to Open.Cause Unknown. Personnel Trained on Correct Procedure for Declutching Motor Operators  + (00:00:11, 26 May 2025)
• 05000259/LER-1985-001-02, :on 850121,unidentified Drywell Leakage Rate in Excess of Tech Spec,Noted.Shutdown Initiated.Caused by Leak in Temporary Hose & Weld Crack Inside Drywell.Repairs Made & Pertinent Procedures Revised  + (00:00:15, 26 May 2025)
• 05000387/LER-1984-042, :on 840926,significant Operating Occurrence Rept Written,Detailing Occurrences Between 831223-840329 When Chemistry Samples Not Taken within Specified Time Limits  + (00:00:16, 26 May 2025)
• DCL-84-302, Revised Emergency Plan Implementing Procedures,Including EPOP-0 Re Reactor Trip or Safety injection,EPOP-0.1 Re Reactor Trip Response & EPOP-0.2 Re Natural Circulation Cooldown.Related Correspondence  + (00:00:18, 26 May 2025)
• 05000373/LER-1984-061-01, :on 841001,combined Leakage of All Four Main Steam Lines Exceeded Tech Spec Limits.Caused by Possible Imperfections in Seating Surfaces.Valves Repaired  + (00:00:22, 26 May 2025)
• 05000361/LER-1985-017, :on 850203,7-day Functional Channel Surveillance Test for Source Range Neutron Flux Monitors Exceeded Tech Spec Time Limit.Caused by Personnel Error. Test Completed & Review in Progress  + (00:00:25, 26 May 2025)
• 05000354/LER-1996-010, :on 960319,automatic Isolation Signal Received from High Steam Flow Signal.Caused by Deficient RCIC warm-up Procedure.Isolation Signal re-set,warm-up Completed & RCIC Sys Returned to svc.Warm-up Procedure Revised  + (00:00:26, 26 May 2025)
• 05000333/LER-1984-019, :on 840928,during Performance of Surveillance Test,Selection of Second Control Rod Failed to Initiate Rod Block After Rod 34-27 Selected & Withdrawn One Notch.Caused by Malfunction of Rod Switch  + (00:00:28, 26 May 2025)
• ML20107K323  + (00:00:31, 26 May 2025)
• ML20107K313  + (00:00:32, 26 May 2025)
• ML20107K310  + (00:00:34, 26 May 2025)
• 05000354/LER-1996-011, :on 960320,HPCIS Failed Surveillance & ADS Declared Inoperable Resulting in Entry Into TS 3.0.3.Caused by Personnel Error.Procedures Revised & Personnel Trained  + (00:00:35, 26 May 2025)
• 05000373/LER-1984-059-01, :on 841002,HPCS Discharge Relief Valve Bellows Failed.Cause Undetermined.Hpcs Relief Valve Repaired  + (00:00:41, 26 May 2025)
• 05000321/LER-1985-009, :on 850123,clearance Hold Tags Placed on Wrong Switches,Resulting in Inability of Ball Valves to Close. Caused by Personnel Error.Responsible Personnel Counseled. Tags Placed on Correct Switches  + (00:00:44, 26 May 2025)
• 05000413/LER-1985-007, :on 850122,diesel Generators 1A & 1B Started on Blackout Signal.During Troubleshooting on Circuit Breaker 1B,Zone B Lockout Initiated,Causing Trip of 6,900-volt Switchgear.Caused by Design Deficiency  + (00:00:48, 26 May 2025)
• 05000220/LER-1985-001, :on 850123,24 & 0207,automatic Initiations of Reactor Bldg Emergency Ventilation Sys Occurred.Caused by off-normal Spiking of Ventilation Duct Radiation Monitor 11.Sensor Converter Replaced  + (00:00:50, 26 May 2025)

• 05000454/LER-1996-002-07, :on 960321,containment Spray Additive Flowed Outside TS Required Range.Caused by Incorrect Testing Methodology Specified in Procedure.C/A:Revised Methodology Test Performed  + (00:00:51, 26 May 2025)

• ML20107K119  + (00:00:54, 26 May 2025)
• ML20107K008  + (00:01:10, 26 May 2025)
• ML20107J998  + (00:01:11, 26 May 2025)
• ML20107J995  + (00:01:13, 26 May 2025)
• ML20107J990  + (00:01:14, 26 May 2025)
• ML20107J973  + (00:01:16, 26 May 2025)
• ML20107J950  + (00:01:18, 26 May 2025)
• ML20107J949  + (00:01:20, 26 May 2025)
• ML20107J936  + (00:01:21, 26 May 2025)
• ML20107J925  + (00:01:22, 26 May 2025)
• ML20107J914  + (00:01:23, 26 May 2025)
• ML20107J904  + (00:01:25, 26 May 2025)
• ML20107J864  + (00:01:27, 26 May 2025)
• ML20107J846  + (00:01:29, 26 May 2025)
• ML20107J815  + (00:01:30, 26 May 2025)
• ML20107J782  + (00:01:35, 26 May 2025)
• 05000374/LER-1985-006-02, :on 850122,HPCS Pump Suction Valve to Condesate Storage Tank Closed & Suction from Suppression Pool Opened. Caused by High Level of Water in Pool.Water Level Lowered. Normal Suction Reestablished  + (00:01:38, 26 May 2025)
• 05000366/LER-1985-004, :on 850121 & 23,ESF Actuation Occurred.Caused by Reactor Protection Sys B Motor Generator Set Tripping Due to Failed Voltage Regulator.Regulator Replaced & Adjusted. Motor Generator Tested & Returned to Svc  + (00:01:40, 26 May 2025)
• IR 05000219/1974006  + (00:01:43, 26 May 2025)
• 05000364/LER-1985-004, :on 850126,required Continuous Fire Watches Terminated Inproperly.Caused by Personnel Error.Foreman Counseled Re Establishment & Termination of Continuous Fire Watches  + (00:01:45, 26 May 2025)
• ML20107J716  + (00:01:46, 26 May 2025)
• 05000267/LER-1984-010, :on 840925,during Reactor Shutdown for Control Rod Drive Work,Portions of Liquid Effluent Release from Reactor Bldg Sump Made W/O Continuous Sampler in Svc.Caused by Personnel Error  + (00:01:48, 26 May 2025)
• IR 05000363/1974001  + (00:01:50, 26 May 2025)
• 05000361/LER-1984-055, :on 840928,spurious Toxic Gas Isolation Sys Train B Actuation Occurred.Caused by Meter on Toxic Gas Isolation Sys Panel Being Less than Setpoints.Meter Reset  + (00:01:52, 26 May 2025)
• 05000366/LER-1985-001-01, :on 850119,reactor Scrammed.Caused by Failure of Inboard Msiv.Procedure HNP-2-3111 Revised to Allow 2-minute Wait Between Operating MSIV Cycle to Prevent Isolation of Drywell Pneumatic Sys  + (00:01:54, 26 May 2025)