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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
- 05000271/LER-1976-008-03, /03L:on 760415,LPCI Sys a Declared Inoperable & Alternate Testing Commenced.Caused by Inability to Guarantee Valve RHR-25A Operability Due to Past Problems W/Valve Body Shrinkage.Valve Reset + (07:24:28, 26 May 2025)
- 05000271/LER-1976-009-03, /03L:on 760421,level Switch LS23-74 for Low Cst/Hpci Suction Valve Switching Circuit Failed to Actuate at Required Setpoint.Caused by Dislocated Switch Wire.Switch Wire Placed in Proper Position & Tied in Place + (07:24:31, 26 May 2025)
- 05000271/LER-1976-010-03, /03L:on 760506,diesel Generator B Tripped on High Crankcase Pressure.Caused by Clogging of Ejector Supply Orifice or Ejector Body in Crankcase Breather & Supply Sys. No Corrective Action Taken + (07:24:33, 26 May 2025)
- 05000271/LER-1976-011-01, /01T:on 760510,RHR Valves 27A & B Would Not Completely Obtain Required Open Position from Normally Closed Position.Caused by Increased Valve Stem Friction. Packing Adjusted & Stem Lubricated + (07:24:36, 26 May 2025)
- 05000271/LER-1976-012-03, /03L:on 760512,head Gasket on Gland Seal Condenser Failed.Caused by Failure to Note New Valve Positions in Current Valve Lineup File & to Follow Valve Lineup Required by Surveillance Procedure + (07:24:38, 26 May 2025)
- 05000271/LER-1976-013-03, /03L:on 760519,level Switch LS 23-74 Would Not Actuate at Required Setpoint of 14-3/8 Inches Above Tank Bottom.Caused by Immobility of Pivot Plate.Pivot Plate Screw Repositioned + (07:24:40, 26 May 2025)
- 05000271/LER-1976-014-03, /03L:on 760519,level Switch 23-91A Would Not Actuate at Tech Spec Trip Level Setting of 2 Inches.Caused by Accumulation of Scale & Corrosion Inside Switch Chamber. Float Tapped & Repeatedly Flushed + (07:24:43, 26 May 2025)
- 05000271/LER-1976-015-01, /01T:on 760525,chemistry & Health Physics Technician Inadvertently Secured Both Plant Stack Monitoring Sys Concurrently.Caused by Personnel Error.Plant Personnel Reinstructed + (07:24:46, 26 May 2025)
- 05000271/LER-1976-016-03, /03L:on 760614,level Switch 23-91A Would Not Actuate at Tech Spec Trip Level Setting.Caused by Stuck Float Inside Level Switch Chamber.Switch Chamber Flushed, Causing Float to Become Freed & Operable + (07:24:48, 26 May 2025)
- 05000271/LER-1976-017-03, /03L:on 760616,upon Automatic Initiation of HPCI Sys,Hpci Gland Seal Condenser Head Gasket Failed.Caused by Pressure Surge Approaching Shutoff Head of HPCI Pump.Gasket Repaired & Sys Returned to Svc + (07:24:50, 26 May 2025)
- 05000271/LER-1976-018-01, /01T:on 760629,control Rod Block Associated W/One Control Rod Withdrawal Permit Circuit Found Inoperable. Caused by Position Indicating Switch on Rod 22-43 at full-in Position Stuck in Closed Position + (07:24:52, 26 May 2025)
- ML20086D213 + (07:24:57, 26 May 2025)
- 05000498/LER-1991-021, :on 911010,power from 1J Bus Lost When Electrician Misapplied Multimeter Test Leads in Energized Circuit,Resulting in Reactor Trip.Caused by Personnel Error. Pump Reenergized & Training Session Held + (07:25:28, 26 May 2025)
- 05000498/LER-1991-002, :on 910126,automatic Actuation of Safety Injection Sys Occurred in One of Three Trains.Caused by Inadequate Work Instructions for Maint Activity.Training Bulletin Issued Describing Event + (07:25:54, 26 May 2025)
- 05000298/LER-1991-013, :on 911018,continuous Fire Watch Not Established for Obstructed Fire Door to Steam Tunnel.Caused by Personnel Error & Procedural Deficiency.Roving Fire Watch Initiated & Procedures Upgraded + (07:26:00, 26 May 2025)
- ML20086C917 + (07:26:06, 26 May 2025)
- ML20086C905 + (07:26:09, 26 May 2025)
- ML20086C866 + (07:26:18, 26 May 2025)
- ML20086C859 + (07:26:22, 26 May 2025)
- 05000482/LER-1991-021, :on 911021,emergency Diesel Generator a Restored W/Incorrect post-welding Hydrostatic Test Pressure on Jacket Water & Lube Oil Hx.Caused by Personnel Error. Procedure Adm 08-217 Will Be Enhanced + (07:26:24, 26 May 2025)
- ML20086C842 + (07:26:28, 26 May 2025)
- ML20086C836 + (07:26:31, 26 May 2025)
- 05000423/LER-1991-027, :on 911014,reactor Trip Signal Generated Due to High source-range Channel 32 Detector Counts.Caused by Electromagnetic Interference on source-range Signal Due to Malfunctioning Machine.Procedures Modified + (07:26:32, 26 May 2025)
- 05000324/LER-1991-017-02, :on 911017,Wyle Labs Notified Util That safety- Relief Valves Exceeded Tech Spec Setpoint Drift.Caused by pilot-disc-to-seat Bonding Preventing Valves from Actuating.Ts Change Will Be Requested + (07:26:34, 26 May 2025)
- ML20086C787 + (07:26:39, 26 May 2025)
- NRC-95-4469, Forwards Proprietary Vols I-IV of WCAP-14252, AP600 Low- Pressure Integral Sys Test at Oregon State Univ Final Data Rept. Rept Withheld from Public Disclosure Per 10CFR2.790 + (07:26:41, 26 May 2025)
- ML20086C772 + (07:26:42, 26 May 2025)
- ML20086C769 + (07:26:43, 26 May 2025)
- 05000328/LER-1995-003-02, :on 950531,turbine Tripped Followed by Reactor Trip as Result of Actuation of Main Generator Stator CW Failure Circuit.Event Will Be Reviewed W/Operations Personnel,Stressing Site Operating Philosophy + (07:26:52, 26 May 2025)
- ML20086C622 + (07:26:54, 26 May 2025)
- ML20086C621 + (07:26:57, 26 May 2025)
- 05000333/LER-1995-010-01, :on 950530,TS Required Plant Shutdown Due to Unidentified Leakage Into Drywell.Repacked Valve 02-RWR-52B Using Current Maint Practice of Repacking w/non-asbestos Graphite + (07:27:00, 26 May 2025)
- 05000373/LER-1991-014-03, :on 911015,TMA/Norcal (Vendor Providing Radioanalytical Analyses) Notified Util That Vent Stack Particulate Composite Sample for Jul 1991 Lost.Cause Unknown.Sample Control Procedures Changed + (07:27:03, 26 May 2025)
- 05000333/LER-1995-011-01, :on 950531,leakage of Primary Containment Isolation Valves Was Exceeded.Caused by 02-2AOV-39 & 02- 2AOV-40 Experiencing Repeated Difficulty in Passing Llrt. Flushed Seat on Inboard Isolation Valve + (07:27:05, 26 May 2025)
- ML20086C551 + (07:27:09, 26 May 2025)
- 05000354/LER-1995-007-01, :on 950603,diesel Fuel Oil Storage Tank Level Found Below TS Min Level Requirement Due to Design Deficiency.Alarm Response Procedure Revised + (07:27:16, 26 May 2025)
- 05000302/LER-1995-009, :on 950602,toxic Gas Monitor Actuated Resulting in Crev Actuation Due to Minimal Release During Sulfur Dioxide Delivery.Evaluation Being Conducted to Determine Feasibility of Moving Sulfur Dioxide Tank + (07:27:21, 26 May 2025)
- 05000373/LER-1995-009, :on 950315,flood Protection Features Not as Described in UFSAR Due to Const Deficiencies.Stationed Operators in Unit 1 Division I & Division III CSCS-ECWS Pump Rooms as Flood Watches + (07:27:26, 26 May 2025)
- 05000361/LER-1991-014, :on 910910,turbine-driven Auxiliary Feedwater Pump P-140 Steam Supply Check Valve MU-005 Found Damaged. Caused by Valve Disc Separating from Pins & Lodging in Valve Outlet Body.Replacement Valve Installed + (07:27:29, 26 May 2025)
- 05000301/LER-1991-004-01, :on 911001,during Performance of Seal Leakage Test on Valve CC-767,required Test Pressure of 65 Psig Could Not Be Achieved.On 911008,as-found Leakage Rate Exceeded Ts.Mod Request Initiated + (07:27:37, 26 May 2025)
- ML20086C286 + (07:27:47, 26 May 2025)
- ML20086C276 + (07:27:49, 26 May 2025)
- ML20086C275 + (07:27:50, 26 May 2025)
- ML20086C262 + (07:27:55, 26 May 2025)
- ML20086C219 + (07:28:09, 26 May 2025)
- ML20086C212 + (07:28:11, 26 May 2025)
- 05000336/LER-1995-023, :on 950516,degradation of Boric Acid Sys Piping & Fittings Occurred Due to Periodic Boric Acid Leaks from Relief & Other Valves.Initiated Repairs & Replaced All Degraded Fittings & Pipe within Boric Acid Sys + (07:28:13, 26 May 2025)
- ML20086C194 + (07:28:15, 26 May 2025)
- ML20086C173 + (07:28:17, 26 May 2025)
- ML20086C155 + (07:28:18, 26 May 2025)
- ML20086C149 + (07:28:20, 26 May 2025)