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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
- ML20087D697 + (06:37:44, 26 May 2025)
- 05000318/LER-1981-030-03, Discovered Temp Transmitter 122HB Out of Tolerance in Nonconservative Direction.Caused Two Oscillators Producing Noise on Transmitter Output.Transmitter Replaced + (06:37:57, 26 May 2025)
- 05000321/LER-1995-006, :on 950711,HPCI Was Inoperable Due to Bound Steam Supply Isolation Valve.Installed Spacer Ring in Packing Gland,Replaced Valve Stem,Repaired Valve Bonnet & Returned HPCI Sys to Svc + (06:38:05, 26 May 2025)
- 05000317/LER-1981-032-03, Reactor Protective Sys Channel D Hi Power Thermal Margin/Low Pressure & Axial Shape Index Trip Units Bypassed for Maint.Caused by Oscillator Noise in Transmitter + (06:39:46, 26 May 2025)
- ML20087C947 + (06:39:52, 26 May 2025)
- ML20087C705 + (06:40:28, 26 May 2025)
- 05000302/LER-1995-012, :on 950707,determined That CR-3 May Have Operated Outside Licensing Basis.Caused by Design Error.Mod Approval Record Initiated to Install Isolation Contacts in Control Circuits + (06:40:36, 26 May 2025)
- ML20087C642 + (06:40:38, 26 May 2025)
- ML20087C596 + (06:40:44, 26 May 2025)
- ML20087C582 + (06:40:45, 26 May 2025)
- 05000265/LER-1995-003-09, :on 950629,SDC Was Not Available Due to Mo 2-1001-29A Tripping Circuit Breaker & Mo 2-1001-5B Valve Was Out of Svc.Modified Procedures to Ensure That Isolations to Valves Mo 1001-29A/B Properly Reset + (06:40:51, 26 May 2025)
- 05000298/LER-1991-020, :on 911210,drywell Vent Radiation Monitor Gaseous Detector Mounting Bolt Threaded Engagement Failed & Leak Rate Exceeded TS Requirements.Caused by Degraded Shield Chamber.Bolt Holes Retapped + (06:40:56, 26 May 2025)
- ML20087C443 + (06:41:11, 26 May 2025)
- ML20087C422 + (06:41:13, 26 May 2025)
- 05000325/LER-1984-001-01, :on 840119,during Attempt to Initiate Suppression Pool Cooling Using Loop a of RHR Svc Water Sys, Loop Pumps a & C Tripped on Low Suction Pressure Lockout. Caused by Air in Header.Air Vented + (06:41:18, 26 May 2025)
- 05000361/LER-1995-012, :on 950707,Unit 2 Containment Air Lock Door Seal Test Did Not Meet Literal TS Requirements Due to Typo in Ts.Revised Containment Air Lock Seal Test Procedure to Ensure Compliance W/Literal Wording of TS for Both Units + (06:41:25, 26 May 2025)
- ML20087C345 + (06:41:27, 26 May 2025)
- ML20087C338 + (06:41:29, 26 May 2025)
- 05000389/LER-1984-004-01, :on 840209,while at 100% Power,Main Feedwater Pump Tripped Due to Low Suction Pressure.Cause Not Determined.Auxiliary Feedwater Pump 2C Tripped Due to Transients on Power Supply.Nut Pin Replaced + (06:41:30, 26 May 2025)
- ML20087C315 + (06:41:35, 26 May 2025)
- 05000368/LER-1984-003, :on 840130,unit Tripped on Low Steam Generator Pressure W/Concurrent Main Steam Isolation Sys Actuation. Caused by Leaking Boric Acid Addition Flow Control Valve 2CV-4926.Valve Repaired + (06:41:38, 26 May 2025)
- ML20087C279 + (06:41:43, 26 May 2025)
- 05000483/LER-1991-008-01, :on 911210,review of Sp OSP-GP-00001,revealed That RHR Pump a Suction Header Vent Valve Had Not Been Verified as Locked Prior to 890314 Due to Incorrect Lock Valve List.Surveillance Procedures Revised + (06:41:46, 26 May 2025)
- 05000281/LER-1975-010-01, /01T:on 750624,svc Water Pump 2-SW-P-4B Developed Seal Leak.Caused by Electrical Short in Motor Operator.Pump Leak & Motor Operator Repaired + (06:41:50, 26 May 2025)
- 05000281/LER-1975-011-01, /01T:on 750630,4 Kv Undervoltage Protection Inoperable.Caused by Blown Fuse.Fuses Replaced + (06:41:55, 26 May 2025)
- 05000281/LER-1975-012-01, /01T:on 750706:main Steam Line Trip Valve in Steam Line B Closed,Causing Closure of Trip Valves a & C & Reactor Trip.Caused by Faulty Piston O-ring.O-ring Replaced & Air Lines Cleared of Debris + (06:41:59, 26 May 2025)
- 05000281/LER-1975-013-01, /01T:on 750720,channel of Change Protection Found Not Conservative.Caused by Failure of Cold Leg Low Level Amplifier.Amplifier Replaced & Channel Calibr + (06:42:06, 26 May 2025)
- 05000280/LER-1975-014-01, /01T:on 750801,boron Concentration in Accumulator 1C Approx 1,850 Ppm.Caused by Inleakage Through Loop Check Valve.Primary Sys Pressure Increased to Seat Check Valves. Accumulator Drained + (06:42:09, 26 May 2025)
- 05000280/LER-1975-015-01, /01T:on 750803,leaking Fitting on Overhead Gas Compressor B Resulted in Unplanned Release of Radioactive Matl from Site.Caused by Loose Fitting.Leaking Fitting Repaired + (06:42:12, 26 May 2025)
- 05000280/LER-1975-017-01, /01T:on 750915,one Channel of Redundant Heat Tracing Failed.Caused by Breaker Trip on Overload Due to Short Circuit by Svc Water Leak.Leak Secured & Transformer Repaired + (06:42:14, 26 May 2025)
- 05000280/LER-1975-018-01, /01T:on 750924,loop a Instrumentation Drifted Low. Caused by High Moisture Content in Containment Atmosphere. RTD Will Be Repaired or Replaced + (06:42:24, 26 May 2025)
- 05000280/LER-1975-019-01, /01T:on 750925,loop B Temperature Change Instrumentation Drifted Low.Caused by Moisture Content of Containment Atmosphere.Spare RTD Placed in Svc & Shutdown Terminated + (06:42:26, 26 May 2025)
- 05000280/LER-1975-022-01, /01T:on 750927,test of Main Steam Safety Valve Setpoint Indicated Four Valves Not within Plus or Minus 1% of Setpoint.Caused by Setpoint Drift.Valves Adjusted & Retested + (06:42:28, 26 May 2025)
- 05000281/LER-1975-017-01, /01T:on 751003,loop C Leg RTD Failed Low,Causing Protection Signals to Fail Low.Caused by Incorrect Ohmic Characteristic of Connected RTD & Spare.Failed Instruments Replaced + (06:42:32, 26 May 2025)
- 05000281/LER-1975-018-01, /01T:on 751009,steam Generator Level Transmitter Isolation Valve Body Bonnet Leak Wetted Down RPI Cabling, Causing Grounds & Erratic Indication for 24 Different Rods. Caused by Water Spray + (06:42:33, 26 May 2025)
- 05000280/LER-1975-023-01, /01T:on 751013,channels P-1-455,P-1-456 & P-1-457 Found Indicating High by 26.4 psi,42.0 Psi & 29.4 Psi, Respectively.Caused by Overranging of Zero Spring in Prior Calibr.Procedure Revised + (06:42:35, 26 May 2025)
- 05000281/LER-1975-019-01, /01T:on 751015,boric Acid Transfer Pump D Motor Failed Resulting in Loss of Recircilation of Boron Injection Tank 2.Caused by Boric Acid Present in Stator Windings. Pump B Placed in Svc + (06:42:37, 26 May 2025)
- ML20087C018 + (06:42:41, 26 May 2025)
- 05000354/LER-1995-015, :on 950708,reactor Shutdown to Comply W/Ts 3.7.2 Exceeded LCO for a CR Ventilation.Caused by Momentary Power Interruption to Control Circuit Due to Problem W/Freon.Replaced Freon Temp Switch + (06:43:00, 26 May 2025)
- 05000280/LER-1975-016-01, /01T:on 750822,Channel II Protection Drifted in Nonconservative Direction.Caused by Incorrect Resistance of Hot Leg Resistance Temp Detector (Rtd).Packing Replaced & RTD Ohmic Characteristic Returned to Normal + (06:43:03, 26 May 2025)
- 05000354/LER-1995-014, :on 950703,automatic Actuation of HPCI Sys Suction Path Swapover ESF Occured Due to Personnel Did Not Fully Understand Potential Effects of Total Loop Instrument Accuracy.Sensitized Personnel + (06:43:06, 26 May 2025)
- 05000280/LER-1975-024-01, /01T:on 750116,containment Leak Rate Test Revealed Overall Integrated Containment Leakage Rate Greater than Acceptable Criterion.Caused by Two Defective Tubes in Steam Generator A.Tubes Plugged + (06:43:07, 26 May 2025)
- 05000281/LER-1975-016-01, /01T:on 750823,low Level Alarm on Boric Acid Tank C Received.Caused by Installation of Carbon Steel Rather than Stainless Steel 304 Flanges & Pipe of Spool Piece.All Improper Installations Will Be Replaced + (06:43:13, 26 May 2025)
- 05000280/LER-1975-025-01, /01T:on 751129,uncontrolled & Unplanned Release of Low Level Radioactive Matl Occurred.Caused by Primary Grade Water Tank 1-PG-TK-1B Overflow Due to Operator Error. Administrative Action Taken + (06:43:16, 26 May 2025)
- 05000280/LER-1975-026-01, /01T:on 751130,auxiliary Feedwater Pump Discharge Valve MOV-FW-151A Failed to Automatically Open When Main Feed Pumps Locked Out.Caused by Failure of Switch.Adjustment of Lever Arm Corrected Problem + (06:43:18, 26 May 2025)
- ML20087B709 + (06:43:21, 26 May 2025)
- 05000280/LER-1975-027-01, /01T:on 751205,uncontrolled & Unplanned Release of Low Level Radioactive Matl Occurred.Caused by Primary Grade Water Tank 1-PG-TK-1A Overflow Due to Operator Error. Administrative Action Taken + (06:43:23, 26 May 2025)
- 05000280/LER-1975-028-01, /01T:on 751211,auxiliary Feedwater Pump Discharge Valve MOV-FW-151A Failed to Automatically Open When Low Low Level Experienced During Draining of Steam Generator B. Caused by Malfunction of Timing Relay + (06:43:27, 26 May 2025)
- ML20087B679 + (06:43:29, 26 May 2025)
- 05000281/LER-1975-020-01, /01T:on 751219,steam Generator C Pressure Indication 496 Channel IV Failed High.Caused by Frozen Sensing Line.Louvers Closed & Sealed Allowing Line to Thaw & Transmitter Returned to Normal Svc + (06:43:32, 26 May 2025)
- 05000281/LER-1975-021-01, /01T:on 751219,channel 3 for Over Temp Indicated 132% While Channels 1 & 2 Indicated 118%.Cause Unknown. Channel Calibr & Returned to Svc + (06:43:34, 26 May 2025)