Search by property

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

• 05000325/LER-1982-048-03, /03L-0:on 820614,diesel Generator Tripped Due to Generator Reverse Power,Causing Automatic Lockout of Diesel. Caused by Auxiliary Operator Trainee Inadvertently Turning Governor Controller in Decreased Speed Direction.Trip R  + (03:07:27, 27 May 2025)
• IR 05000313/1982010  + (03:07:29, 27 May 2025)
• 05000259/LER-1982-041-03, /03L-0:on 820619,during Control Rod Drive Exercise Rod Block Monitor Channels a & B Became Inoperative.Caused by Shorted Rod Block Relay Which Probably Caused Channel B 5-volt Logic & Fuses in Channels a & B to Blow  + (03:07:32, 27 May 2025)
• 05000369/LER-1982-052-03, /03L-0:on 820613,during Momentary Loss of Power, Channel 1 of Reactor Protection & Instrument Sys,Inverter Evia Failed.Caused by Malfunction of 120-volt Ac Vital Instrumentation & Control Power Sys 15 Kv Static Inverter  + (03:07:33, 27 May 2025)
• 05000338/LER-1982-047-03, /03L-0:on 820618,setpoints for Seismic Trigger for Triaxial Time History Accelerograph Found to Exceed Settings Specified in Fsar.Caused by Instrument Drift. Setpoints Adjusted & Surveillance Test Revised  + (03:07:37, 27 May 2025)
• IR 05000482/1981010  + (03:07:40, 27 May 2025)
• 05000259/LER-1982-039, Reissued LER 82-039/03L-0:on 820609,fuse Blew Resulting in Inboard Primary Containment Isolation.Caused by Shorted Coil for Relay 16A-K66B,GE Type CR120A.Fuse & Relay Coil Replaced & Hydrogen Analyzers Returned to Normal  + (03:07:48, 27 May 2025)
• 05000369/LER-1982-049-03, /03L-0:on 820607,RCS Loop C Reactor Protection Sys Instrumentation Monitoring Flow Channel III Deviated by More than 5% from Other Two Channels.Probably Caused by Component Malfunction.Flow Transmitter Environ Being Investig  + (03:07:54, 27 May 2025)
• 05000364/LER-1982-029-03, 7 River Water Pump Declared Inoperable When Motor Tripped.Caused by Ground Fault on Phase C Power Supply Cable.Defective Cable Replaced & Declared Operable on 820626  + (03:07:56, 27 May 2025)
• 05000327/LER-1982-079-03, /03L-0:on 820618,refueling Water Storage Tank Loop 1-LT-63-51 Found Inoperable Due to Bistable in Test Position.Caused by Personnel Error.Bistable Returned to Svc & Loop Indicator Verified  + (03:07:58, 27 May 2025)
• 05000364/LER-1982-027-03, Steam Jet Air Ejector Noble Gas Activity Monitor Declared Inoperable When Pegged High While All Other Indications Normal.Caused by Faulty Detector.Detector Replaced & Declared Operable on 820622  + (03:07:58, 27 May 2025)
• 05000285/LER-1982-014-03, /03L-0:on 820618,during Process of Switching Component Cooling Water Heat Exchangers,Associated Inlet Valves HCV-498A,HCV-490A & HCV-492A Did Not Open.Cause unknown.HCV-492A Manually Opened.All Valves Operable  + (03:08:01, 27 May 2025)
• 05000259/LER-1982-040, Forwards LER 82-040/03L-0  + (03:08:02, 27 May 2025)
• 05000368/LER-1982-022-03, /03L-0:on 820614,containment Atmosphere Gaseous & Particulate Radioactive Monitoring Sys Sample Pumps 2RITS-8271-2 & 2RITS-8231-1 Not Operating.Caused by Lost Suction & Low Air Flow.Air Flow Adjusted & Pump Restarted  + (03:08:10, 27 May 2025)
• 05000302/LER-1982-043-03, /03L-0:on 820618,intermediate Range Auxiliary Power Supply for NI-4 Found Out of Tolerance During Reactor Protective Sys Functional Testing.Caused by Instrument Drift.Instrument Recalibr & Tested Per Procedure SP-110  + (03:08:17, 27 May 2025)
• 05000327/LER-1982-075-03, /03L-0:on 820618,steam Generator Blowdown Containment Isolation Valve 1-FCV-1-7 Declared Inoperable. Caused by High Temp Environ Surrounding Operator Due to Diaphragm Failure.Diaphragm Replaced  + (03:08:18, 27 May 2025)
• 05000335/LER-1982-025-03, /03L-0:on 820616,routine Surveillance Revealed That Pressurizer Safety Valve V-1200 Acoustic Flow Position Indicator Inoperable.Cause Unknown.Indicator Will Be Repaired or Replaced During Next Outage  + (03:08:20, 27 May 2025)
• 05000338/LER-1982-044-03, /03L-0:on 820617,restricting Orifice in Quench Spray Sys Blanked Off During Power Operation.Caused by Installation of Plank to Allow Type C Testing on Quench Spray Check Valve.Blank Replaced W/Orifice  + (03:08:21, 27 May 2025)
• 05000339/LER-1982-027-03, /03L-0:on 820620 & 23 Axial Flux Difference Went Less than -5% from Target on Two Occasions.Caused by Inability to Establish Stable Axial Flux Difference Target in New Core  + (03:08:26, 27 May 2025)
• 05000339/LER-1982-036-03, /03L-0:on 820618,channel IV Steam Flow Indicator for Steam Generators B & C Failed Low.Cause of Both Events Unknown.Channels Placed in Tripped Condition & Approved Calibr Procedure Performed  + (03:08:28, 27 May 2025)
• 05000260/LER-1982-019-03, /03L-0:on 820618,while Performing SI-2 (Rod Notch Exercise),Flow Bias Comparator Trip Prevented Rod Withdrawal.Caused by Gemac 563-02 Proportional Amplifier (FQ-68-81) Drifting Upscale.Amplifier Replaced  + (03:08:33, 27 May 2025)
• 05000280/LER-1982-072, Forwards LER 82-072/03L-0 & 82-068/03L-0  + (03:08:45, 27 May 2025)
• 05000267/LER-1982-026-03, /03L-0:on 820615,total Primary Coolant Oxidants Exceeded Limiting Conditions for Operation on Two Occasions. Caused by Water in Core Due to Sudden Pressure Surge from Loss of 480-volt Essential Busses.Concentrations Reduced  + (03:08:50, 27 May 2025)
• 05000348/LER-1982-030, Forwards LER 82-030/03L-0  + (03:08:53, 27 May 2025)
• 05000369/LER-1982-053-03, /03L-0:on 820624,during Plant Cooldown,Static Inverter Evia Malfunctioned,Causing RHR Sys Negative Declaration Isolation Valve to Close.Caused by Component Failure of Solidstate Controls,Inc Static Inverter  + (03:08:55, 27 May 2025)

• 05000280/LER-1980-059-01, Util Informed of Potential for Loss of Auxiliary Feedwater Flow Following Steamline Rupture.Caused by Original Design Allowing Pump Runout & Subsequent Tripping of Sys Pump Motors  + (03:09:00, 27 May 2025)

• IR 05000482/1981012  + (03:09:02, 27 May 2025)
• 05000280/LER-1979-045-01, Air Would Not Flow Through Filters If Consequence Limiting Safeguards hi-hi Signal Removed from Control Circuit of Safeguards Area Exhaust Ventilation Dampers.Caused by Design Deficiency  + (03:09:03, 27 May 2025)
• 05000325/LER-1982-064-03, /03L-0:on 820615,post-accident Monitoring Control Room Recorder/Indicator 1-CAC-AR-1259 Erraticaly Indicated Drywell Oxygen Concentrations.Caused by Erratic Instrument Output Due to Unknown Causes.Unit Replaced  + (03:09:06, 27 May 2025)
• IR 05000286/1982009  + (03:09:35, 27 May 2025)
• ML20055B642  + (03:09:37, 27 May 2025)
• IR 05000334/1981027  + (03:09:58, 27 May 2025)
• 05000311/LER-1982-052-03, /03L-0:on 820618,steam Generator 21 Steam Flow Channel II Discovered Reading Low.Caused by Instrument Drift.Transmitter Recalibr & Returned to Svc  + (03:10:00, 27 May 2025)
• IR 05000277/1981024  + (03:10:09, 27 May 2025)
• IR 05000373/1981048  + (03:10:18, 27 May 2025)
• 05000289/LER-1982-010-99, /99X-0:on 820526,engineered Safeguards Actuation Sys Failed to Come Out of Bypass During post-maint Testing Following Triac Replacement.Caused by Hampering of New Triac Drop Out Due to Induced Voltage on Input Circuit  + (03:10:30, 27 May 2025)
• 05000334/LER-1982-021-03, /03L-0:on 820614,outside Recirculation Spray Pump, RS-P-2A,developed Seal Accumulator Level Trouble.Caused by Binding of Seal Bellows Which Unloaded Mechanical Seal Resulting in Water Leakage.Seal Parts Replaced  + (03:10:32, 27 May 2025)
• 05000317/LER-1982-029-01, /01T-0:on 820628,during Mode 3,automatic Start Feature for Auxiliary Feed Pumps 11 & 12 Inhibited.Caused by Procedural Inadequacy Due to Handswitches for MSIV in pull-to-lock Position.Procedure Modified  + (03:10:36, 27 May 2025)
• 05000219/LER-1982-033-03, /03L-0:on 820613,control Rod Driveline Pump a Failed to Operate.Apparently Caused by Enlarging of Interstage Bushing Clearances in Rotating Assembly.Rotating Assembly Replaced  + (03:11:16, 27 May 2025)
• 05000219/LER-1982-036-03, /03L-0:on 820618,water from Disassembled Control Rod Driveline Pump Found Overflowing from Temporary Drain Assembly Onto Core Spray Pump a Motor Housing.Cause Not Stated.Megger Check Performed on Core Spray Pump  + (03:11:29, 27 May 2025)
• ML20055B411  + (03:11:32, 27 May 2025)
• 05000336/LER-1982-022-03, /03L-0:on 820609,fire Actuation Signal in Diesel Generator Room a Tripped Clean Fuel Transfer Pump,Allowing Clean Fuel Tank to Overflow.Caused by Shorted Fire Alarm Pull Box,Due to Ingress of Rainwater.Shield Installed  + (03:12:45, 27 May 2025)
• 05000293/LER-1982-018-03, /03L-0:on 820610,master Fire Detection Alarm Panel C-220 Declared Inoperable Due to Inability to Reset Trouble Alarm.Caused by Faulty Reset Switch on Fire Trouble Control Board.Switch Replaced & Sys Returned to Svc  + (03:12:58, 27 May 2025)
• 05000338/LER-1982-043-03, /03L-0:on 820614,one Coolant Loop Declared Inoperable.Caused by Failure of RHR Subsystem B Pump 1-RH-P-1B.Impeller,motor W/Integral Pump Shaft & Mechanical Seal Replaced  + (03:13:06, 27 May 2025)
• 05000369/LER-1982-051-03, /03L-0:on 820608,125-volt Battery Evca Returned to Svc Prior to Verification of Operability.Caused by Personnel Error.Battery Reisolated & Operability Verified.All Employees Cautioned.Procedure Modified  + (03:13:15, 27 May 2025)
• 05000416/LER-1982-004-03, /03L-0:on 820616,prior to Initial Fuel Load,Area Radiation Monitoring Sys Failure Alarm Initiated.Probably Caused by Transient Which Allowed Meter to Fall in Downscale Range of Monitor.Sys Tested & Declared Operable  + (03:13:16, 27 May 2025)
• 05000247/LER-1982-024-03, /03L-0:on 820608,charging Pump 23 Developed Leak & Declared Inoperable.Cause of Leaking Head Gasket Not Stated.Head Gasket Replaced.Pump Tested Satisfactorily & Returned to Svc  + (03:13:24, 27 May 2025)
• 05000416/LER-1982-003-03, /03L-0:on 820616,during Surveillance Testing, Output Amplifiers for free-field Forced Balanced Accelerometer Found Inoperable.Probably Caused by Lightning Damage.Amplifiers Replaced & Surveillance Test Completed  + (03:13:34, 27 May 2025)
• IR 05000298/1982008  + (03:13:40, 27 May 2025)
• 05000416/LER-1982-002-01, /01T-0:on 820701,two Scrams Initiated by High Flux Spikes on Fuel Loading Chambers Connected to Source Range Monitor Noncoincident Reactor Protection Sys Logic.Probably Caused by Close Proximity of Fuel Bundles to Fuel Chamb  + (03:13:48, 27 May 2025)
• 05000311/LER-1982-049-03, /03L-0:on 820617,containment Fan Coil Units 21 & 25 Failed to Meet Svc Water Flow Requirements.Caused by Valve 21SW57 Tube Bundle Plugged W/American Oysters in Unit 21.Unit 25 Failed Due to Cracked Solder Joint  + (03:13:49, 27 May 2025)