Pages that link to "05000362/LER-2009-001, Regarding Component Declared Inoperable After LCO Time Limit"
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The following pages link to 05000362/LER-2009-001, Regarding Component Declared Inoperable After LCO Time Limit:
Displayed 8 items.
- 05000362/LER-2009-001 (redirect page) (← links)
- 05000362/LER-2002-002 (← links)
- 05000362/LER-2001-001 (← links)
- IR 05000361/2011002 (← links)
- 05000362/LER-1982-010, Forwards LER 82-010/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1982-011, Forwards LER 82-011/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1982-006, Ro:On 821217,incident Involving Emergency Safety Features Actuation Signal Occurred.Written Followup Rept W/Interim LER 82-006 Will Be Submitted by 821228 (← links)
- 05000362/LER-1982-003, Forwards LER 82-003/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1993-006, Forwards RCE-94-002, Reactor Coolant Pump 3P002 Mechanical Seal Failure, as Committed in LER 93-006,dtd 940112 (← links)
- 05000362/LER-1983-021, Forwards LER 83-021/03L-0 (← links)
- 05000362/LER-1983-009, Forwards LER 83-009/03L-0 (← links)
- 05000362/LER-1982-002, Forwards LER 82-002/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1983-017, Forwards LER 83-017/03L-0 (← links)
- 05000362/LER-1982-008, Forwards LER 82-008/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1983-073, /03L-0:on 830929,boronmeter 3AE0203 Rendered Inoperable When Manual Isolation Valves S31208MU084 & S31208MU091 Closed.Caused by Improper Sys Lineup.Corrective Actions Described in LER 83-073/03L-0 (← links)
- 05000362/LER-1983-097, Revised LER 83-097/03L-1:on 831029 & 30,control Element Assembly (CEA) 57 Dropped More than 19 Inches & CEA 61 Dropped More than 19 Inches on 831101.Caused by Sluggishness of CEA Grippers (← links)
- 05000362/LER-1983-004, Forwards LER 83-004/03L-0 (← links)
- 05000362/LER-1983-019, Forwards LER 83-019/03L-0 (← links)
- 05000362/LER-1983-007, Forwards LER 83-007/03L-0 (← links)
- 05000362/LER-1983-002, Forwards LER 83-002/03L-0 (← links)
- 05000362/LER-1983-003, Forwards LER 83-003/03L-0 (← links)
- 05000362/LER-1983-065, Corrected LER 83-065/03L-0:on 830905 & 12,high-range in-containment Radiation Monitor 3RI-7820-1 Declared Inoperable After Discovery in Failed Low Condition.Caused by Faulty Electrical Cable Penetration Path (← links)
- 05000362/LER-1983-036, Forwards Updated LER 83-036/03X-1 & LER 83-042/03L-0. Detailed Event Summary Submitted (← links)
- 05000362/LER-1983-033, Forwards LER 83-033/03L-0 (← links)
- 05000362/LER-1983-035, Forwards LER 83-035/03L-0 (← links)
- 05000362/LER-1983-026, Forwards LER 83-026/03L-0 (← links)
- 05000362/LER-1983-027, Forwards LER 83-027/03L-0 (← links)
- 05000362/LER-1983-024, Forwards LER 83-024/03L-0 (← links)
- 05000362/LER-1995-001, Forwards LER 95-001 for Discovery of Minor RCS Pressure Boundary Weepage Which Occurred During Cycle 7 Operation. Neither Public Health Nor Safety of Plant Personnel or Public Affected by Occurrence (← links)
- 05000362/LER-1983-005, Forwards LER 83-005/01T-0 (← links)
- 05000362/LER-1983-016, Forwards LER 83-016/03L-0 (← links)
- 05000362/LER-1983-020, Forwards LER 83-020/01T-0 (← links)
- 05000362/LER-1983-022, Forwards LER 83-022/01T-0 (← links)
- 05000362/LER-1983-006, Forwards LER 83-006/01T-0 (← links)
- 05000362/LER-1983-008, Forwards LER 83-008/03L-0 (← links)
- 05000362/LER-1983-018, Forwards LER 83-018/03L-0 (← links)
- 05000362/LER-1983-012, Forwards LER 83-012/03L-0 (← links)
- 05000362/LER-1983-001, Forwards Revised LER 83-001/03X-1 (← links)
- 05000362/LER-1997-002, Forwards LER 97-002-00 Re Occurrence Involving RCS Pressure Boundary Leakage,Per 10CFR50.73(d) (← links)
- 05000362/LER-1997-004, Forwards LER 97-004-00 for Occurrence Involving Typo in Ts. Health & Safety of Public or Plant Personnel Was Not Affected (← links)
- 05000362/LER-1984-045, Forwards LER 84-045-00 for 1984 & 85 Occurrences Re Dose Equivalent Iodine Concentrations That Exceeded TS Limits,But Were Not Reported as Required by TS in Effect at That Time. Healt Nor Safety of Plant Personnel or Public Was (← links)
- 05000362/LER-1950-362, Clarifies Corrective Actions Taken by Util to Prevent Recurrence of Reactor Trips During Startup as Ref in LER 50-362/86-06 on 860413.Procedure SO123-V-4.22 Revised to Require Changes Approved by Supervising Engineer (← links)
- 05000362/LER-1986-015-03, :on 861212,determined That Sufficient Info Existed to Believe Individual Extremity Exposure in Excess of Regulatory Limits Occurred in Oct 1986.Individual Restricted from Exposure.Related Info Re IEB-85-003 Encl (← links)
- 05000362/LER-1987-013, :on 870624,HPSI Pump Bypass Valve Found Not Fully Closed.Caused by Lack of Limit Switch Actuating Assembly Collar Retaining Device.Limit Switch Returned to Original Configuration W/Locking Mechanism (← links)
- 05000362/LER-1984-045-01, :on 840719,recognized That Four Iodine Transients Met Reporting Criteria of TS 3.4.7,but Had Not Been Reported.Cause Indeterminate.Nrc Approved TS Amend Which Deleted Reporting Requirement of TS 3.4.7.A (← links)
- 05000362/LER-1999-005, :on 990630,discovered LTOP Sys Relief Valve Setpoint Was Higher than Allowed by Ts.Cause Indeterminate. Subject Valve Will Be Disassembled & Inspected to Determine Caused of High Setpoint.With (← links)
- 05000362/LER-1999-006, :on 990623,EDG 3G003 Was Inadvertently Made Inoperable.Caused by Operators Aligning EDG to Inoperable Automatic Voltage Regulator.Licensee Will Revise Process of Locating Tags.With (← links)
- 05000362/LER-1986-012-01, :on 860901,02,18 & 19,fuel Handling Isolation Sys Train B Spuriously Actuated by Noble Gas Airborne Radiation Monitor 3RE7823B2.Caused by Monitor Sensitivity to Random Electrical Noise (← links)
- 05000362/LER-1985-036, :on 851223,determined That Shutdown Cooling Sys HX Isolation Valves 3HV-8150 & 3HV-8151 Not Fully Closed Per Tech Specs.Caused by Premature Actuation of Valve Motor Operator Position Indication Limit Switches (← links)
- 05000362/LER-1985-026, :on 851016,containment Purge Isolation Sys Train a Monitor 3RE-7804 Isolated Due to Closure of Sample Isolation Valves.Caused by Deenergization of Power Supply to Esfas.Covers Installed on Circuit Breakers (← links)
- 05000362/LER-1986-014-01, :on 861021,reactor Trip Occurred on High Steam Generator Water Level.Caused by Personnel Error,Inaccurate Feedwater Flow Signals & Slow Response of Feedwater Controller.Addl Instructions Provided (← links)
- 05000362/LER-1986-016-01, :on 861224-870120,fuel Handling Isolation Sys Train B Spurious Actuations Occurred on 12 Occasions.Caused Hypothesized to Be Random Electrical Noise or Intermittent Failure of Monitor Electronics (← links)
- 05000362/LER-1986-010-01, :on 860726,loss of Feedwater Occurred When Both Feedwater Pump Turbines Tripped on High Vibration.Caused by Automatic Rejection of Condensate Contaminated by Condenser Seawater in-leakage.Event Reviewed (← links)
- 05000362/LER-1986-009, :on 860701,insp Identified Internal Damage to 4 Inch Tilting Disc Check Valve 3MU005,mfg by Anchor Darling & Installed in Steam Leads to turbine-driven Auxiliary Feedwater Pump (← links)
- 05000362/LER-1986-013-01, :on 860904,reactor Tripped on Loss of Load When Power Supply to Turbine Protection Panel Momentarily Interrupted.Caused by Operator Error.Event Discussed During Shift Briefings W/Involved Personnel (← links)
- 05000362/LER-1987-001, :on 870109,discovered That 18-month Surveillance of Instrument Line Snubbers Not Performed. Caused by Clerical Error.Review of All Snubber Documents Included in Snubber Svc Life Program (← links)
- 05000362/LER-1986-011-01, :on 860804,saltwater Cooling Flow Through Train a Component Cooling Water HX Decreased to Below Postulated Design Basis Flow Rate.Caused by High Deposits of Marine Growth & Debris.Operating Procedures Revised (← links)
- 05000362/LER-1999-002-01, :on 990328,RWST Outlet Isolation Valve Failed to Open After Being Closed for Testing.Caused by Degradation of Valve.Rwst Oulet Valve Was Repaired.With (← links)
- 05000362/LER-1999-001-01, :on 990211,TS 3.0.3 Entered Due to Both Chilled Water Trains Being Inoperable.Warm Main Condenser Discharged Water Diverted in Salt Water Cooling (Swc)(Bs) Intake.With (← links)
- 05000362/LER-1986-008-01, :on 860716,containment Purge Isolation Sys Train B Actuated on Instrument Failure Signal from Containment Airborne Gas Monitor.Caused by Faulty Wire on Assembly Connector.Connector Repaired (← links)
- 05000362/LER-1986-007-01, :on 860715,discovered 8 H Turbine Bldg Sump Effluent Sampling Analysis Delinquent.Caused by Failure to Follow Administrative Controls.Technicians Disciplined & Counseled.Procedures Revised (← links)
- 05000362/LER-1986-003-01, :on 860227,observed Small RCS Pressure Boundary Leak in 3/4-inch Instrument Nozzle on Head of Pressurizer. Cause Undetermined.Nozzle & Weld Completely Cut Out & Replaced (← links)
- 05000362/LER-1997-003-02, :on 971218,determined That Pressurizer Safety Valve Setpoints Were Out of Tolerance.Caused by Setpoint Drift.Valves Will Be Disassembled,Inspected,Reassembled & Reset by Proper Personnel (← links)
- 05000362/LER-1997-004-01, :on 971205,typo in TS Was Found.Caused by Personnel Error.Tendon Surveillance Procedure Correctly Referenced Tendon 88-154 & Not 38-154 (← links)
- 05000362/LER-1986-006-02, :on 860413,during Startup,Reactor Trip Occurred When Core Protection Calculator Low DNBR & High Local Power Density Trip Generated.Caused by Inaccurate Xenon Worth in Estimated Critical Position.Staff Disciplined (← links)
- 05000362/LER-1986-005-01, :on 860412,reactor Tripped When Spurious Turbine Trip Caused Loss of Load Signals.Caused by Voltage Transient of Uninterruptible Power Supply Inverter.Design Change to Rearrange Relays Implemented (← links)
- 05000362/LER-1997-003-01, Forwards LER 97-003-01 Re Out of Tolerance Condition Identified During Testing of Pressurizer Safety Valve Setpoints.Ler Contains No New Commitments (← links)
- 05000362/LER-1999-004, :on 990515,reactor Manually Tripped Due to Feedwater Control Valve Opening.Caused by Faulty Valve Positioner.Faulty Positioner Was Replaced (← links)
- 05000362/LER-1999-003-01, :on 990513,reactor Manually Tripped Due to Loss of Main Feedwater.Caused by Open Relay Contact in Output of Feedwater Regulation Control Sys.Faulty Relay Was Replaced (← links)
- 05000362/LER-1998-012, :on 870302,noted That CCW Relief Valve Was Inoperable.Caused by Wrong Set Spring Being Installed Due to Vendor Data Error.Spring Was Replaced & Tested & Subsequently Personnel Set Lift Pressure at 150 Psig (← links)
- 05000362/LER-1998-012-01, Forwards LER 98-012-01 Re Occurrence Involving CCS RPV Being Set Above Required Relief Setpoint.Any Actions Listed Are Intended to Ensure Continued Compliance with Existing Commitments as Discussed in Applicable Licensing Do (← links)
- 05000362/LER-1986-001-01, :on 860112,main Turbine Tripped When Loss of Load Signal Generated by Turbine Supervisory Sys.Caused by Operator Failure to Confirm Plant Configuration w/as-built Drawings.Instruction SO23-6-5 Revised (← links)
- 05000362/LER-1997-002-01, :on 970703,RCS Leakage Occurred in Instrument Thermowell Nozzles.Caused by Primary Water Stress Corrosion Cracking of Alloy 600 Type Matls.Replaced Outer Half of Nozzles W/Inconel 690 Matl (← links)
- 05000362/LER-1986-004-01, :on 860303,review of Containment Purge Analyses Data Determined That Sample Cartridge Representing Final 9 H of 860214 Purge Not Analyzed.Caused by Personnel Error. Technician Counseled (← links)
- 05000362/LER-1997-001-02, :on 970412,four Out of Five RCS Nozzles Leaked During Plant Operation & Fifth Suspected of Leaking.Caused by Crack Through Nozzle in Heat Affected Zone of Partial Penetration Weld.Completed Required Welding (← links)
- 05000362/LER-1986-002, :on 860212,w/core Protection Calculator Channels a & D Inoperable,Period of Greater than 2 H Elapsed Before Appropriate Channels Bypassed/Tripped.Caused by Miscommunication.Work Request Process Changed (← links)
- 05000362/LER-1985-031-01, :on 851008,10 & 26,w/plant in Mode 6 During Refueling,Fuel Handling Isolation Sys Actuated by Signal from Vent Airborne Process Radiation Monitors.Caused by Increase of Low Level Activity (← links)
- 05000362/LER-1985-037-01, :on 851126,recently Installed Startup Channel Neutron Flux Detectors Not Tested for Removable Surface Contamination or Leakage.Caused by Inadequacies in Health Physics Surveillance Program.Detectors Tested (← links)
- 05000362/LER-1985-035-01, :on 851116,containment Purge Isolation Sys Actuation Occurred.Caused by Fuel Handling Tools Being Transported in Vicinity of Containment Area Radiation Monitor 3RI-7857.Personnel Counseled (← links)
- 05000362/LER-1985-029-01, :on 850927,w/18-month Snubber Surveillance in Progress,Mechanical Pacific Scientific Snubber Failed Due to Installation Damage.All Deficient Snubbers Replaced (← links)
- 05000362/LER-1985-028-01, :on 850925,fuel Handling Isolation Sys Train a Actuated W/No Fuel in Spent Fuel Pool.Caused by Increase in Airborne Activity.Fuel Handling Isolation Sys Reset (← links)
- 05000362/LER-1985-027-01, :on 850920,during Main Purge,Containment Airborne Radiation Monitor 3RE-7804 Reached Alarm Setpoint & Initiated Train a Containment Purge Isolation Sys.Caused by Movement of Stagnant Air Into Purge Exhaust (← links)
- 05000362/LER-1985-034-01, :on 851114,Train a of Fuel Handling Isolation Sys Actuated on Loss of Power to Fuel Storage Pool Airborne Radiation Monitor 3RT7822.Caused by Loose Electric Lead.Lead Repaired (← links)
- 05000362/LER-1985-033-01, :on 851108 & 15,fuel Handling Isolation Sys Train a Actuated When Noble Gas Airborne Radiation Monitor 3RE-7822B Spuriously Alarmed.Caused by Monitor Sensitivity to Random Electrical Noise.Repairs Performed (← links)
- 05000362/LER-1985-025-01, :on 850916,containment Purge Isolation Sys a Spuriously Actuated by Signal from Containment Area Radiation Monitor.Cause Not Determined.Completion of Ground Sys Study Scheduled for 851101 (← links)
- 05000362/LER-1985-029, :on 850927,w/unit in Cold Shutdown,Following Routine 18-month Snubber Surveillance,Total of 60 Deficient Snubbers Identified.Deficient Snubbers Replaced & Engineering Evaluation Performed (← links)
- 05000362/LER-1985-036-01, :on 851223,shutdown Cooling Sys HX Isolation Valves Partially Opened.Caused by Premature Actuation of Valve Motor Operator Position Indication Limit Switches. Valves Closed (← links)
- 05000362/LER-1985-030-01, :on 851208,fuel Handling Isolation Sys Train B Actuated When Noble Gas Airborne Radiation Monitor 3RE-7823B Spuriously Alarmed.Caused by Radiation Monitor Sensitivity to Random Electrical Noise (← links)
- 05000362/LER-1985-032-01, :on 851015,fuel Handling Isolation Sys Train B Actuated & Noble Gas Airborne Radiation Monitor 3RE7823B2 Spuriously Alarmed.Caused by Radiation Monitor Sensitivity to Random Electrical Noise (← links)
- 05000362/LER-1985-026-01, :on 851016,during Containment Purge,Containment Purge Isolation Sys Train a Monitor 3RE-7804 Isolated by Closure of Sample Isolation Valves.Caused by Deenergizing of Power Supplies During Mod Work (← links)
- 05000362/LER-1984-038-01, :on 840922,power Reduction from 100% Power Initiated to Perform Scheduled Surveillances & Maint Items. Caused by Iodine Spiking.Primary Coolant Activity Monitored (← links)
- 05000362/LER-1985-022-01, :on 850809,hourly Fire Watch Instead of Continuous Fire Watch Posted During Fire Protection Outage & Isolation of Spray/Sprinkler Sys.Caused by Personnel Error. Continuous Fire Watch Posted (← links)
- 05000362/LER-1996-006-01, :on 961025,CPIS Actuated W/Unit 3 in Mode 1 at Full Power.Caused by Radiation Increase Inside Due to Small Pressurizer Vapor Space Leak.Tsip Revising Cpis Actuation Setpoint Installed on 961101 (← links)
- 05000362/LER-1996-004-01, :on 960919,RCS Pressure Boundary Leakage Occurred.Caused by Thermowell Broken Off Inside RCS Pipe. Util Restored Broken Thermowell for Design Configuration (← links)
- 05000362/LER-1993-001, :on 930116,main Generator Tripped on Stator Ground Protection Signal Causing Turbine/Reactor Trip.Caused by Water Intrusion.Addl Sealing Provided for Main Generator Terminal Encl to Minimize Water Intrusion (← links)
- 05000362/LER-1985-024-01, :on 850905,16 & 1004,spurious Fuel Handling Isolation Sys Actuations Occurred.Caused by Radiation Monitor Sensitivity to Random Electrical Noise.Sys Reset. Potential Design Deficiency Being Investigated (← links)
- 05000362/LER-1984-041, :on 841126,Train a Containment Purge Isolation Sys Spuriously Actuated by Electrical Noise Spike on Containment Area Radiation Monitor 3RT-7856.Caused by Momentary Grounding of Damaged Ac Power Cord (← links)
- 05000362/LER-1985-017, :on 850417,failed Pacific Scientific Mechanical Snubber Discovered.Damage Caused by Hydraulic Transient. Addl Snubbers Manually Stroked & All Deficient Snubbers Replaced (← links)
- 05000362/LER-1985-023-01, :on 850822,fuel Handling Isolation Sys Trains a & B Actuated.Caused by Gas in Chemical Vol & Control Sys Piping Due to back-leakage from Vol Control Tank.Gas Activity Removed.Trains Reset (← links)
- 05000362/LER-1985-021, :on 850616,actuation of Fuel Handling Isolation Sys Train B Occurred When Airborne Monitor Alarmed.Caused by Increase in Background Radiation Level Due to Noble Gas Leak from Loose Fitting.Fitting Tightened (← links)
- 05000362/LER-1985-015-01, :on 850422,turbine Plant Area Sump Monitor 3RT-7821 Found Isolated Since 850419.Caused by Operator Error.Procedures Changed to Prevent Recurrence (← links)
- 05000362/LER-1996-005-01, :on 960928,reactor Head Vent Valve Discovered Mispostioned.Caused by Incorrect Completion of RCS post-fill Valve Alignment Procedure.Util Confirmed Review of Records That Head Vent Valve Closed (← links)
- 05000362/LER-1985-016-01, :on 850417,continuous Azimuthal Power Tilt Surveillance Discovered to Be Insufficient.Caused by Inadequate Procedural Guidance to Ensure Continuous Surveillance.Procedures Adjusted (← links)
- 05000362/LER-1985-017-01, :on 850417,failed Pacific Scientific Snubber Discovered in Routine post-maint Surveillance.Caused by Hydraulic Transient Damage.Snubber Replaced & 29 Addl Snubbers Checked.Deficient Snubbers Replaced (← links)
- 05000362/LER-1985-020-01, :on 850524,unit Tripped from 100% Power by Core Protection Calculators in Response to Core Element Assembly Subgroup 15.Caused by Blown Fuse in Hold Bus Logic Circuit.Fuse Replaced & Unit Returned to Svc (← links)
- 05000362/LER-1985-013-01, :on 850408,reactor Shut Down Due to Turbine Trip Initiated by Low Seal oil-to-gas Differential.Caused by Failed Pipe Fitting in Generator Hydrogen Seal Oil Sys. Fitting Removed & Replaced (← links)
- 05000362/LER-1985-014-01, :on 850418,Train B Containment Purge Isolation Sys Actuated on High Iodine Signal from Containment Airborne Radiation Monitor 3RE-7807A2 (Iodine Channel).Caused by Failure of High Voltage Power Supply Card (← links)
- 05000362/LER-1985-019-01, :on 850517,actuation of Fuel Handling Isolation Sys Train a Occurred When Airborne Monitor 3RE-7822 Spuriously Alarmed.Addl Spurious Actuations Occurred on 850519,850526 & 850607 (← links)
- 05000362/LER-1985-018, :on 850502,Train a Containment Purge Isolation Sys Logic Circuit Actuated on High Iodine Signal from Containment Airborne Radiation Monitor.Caused by Buildup of Iodine on Charcoal Filter.Filter Replaced (← links)
- 05000362/LER-1992-011, :on 900722,AFW Bypass Control Valve 3HV-4763 Failed to Close Upon Demand.Caused by Failed Actuator Solenoid Valve Which Prevented Closure.Valve 3HV-4763 Manually Isolated (← links)
- 05000362/LER-1996-002-02, :on 960514,pressurizer Safety Valves Found to Be Above Tech Spec Setpoint.Caused by Setpoint Drift.Valves Disassembled,Inspected,Reassembled & Reset to Proper Setpoint (← links)
- 05000362/LER-1985-012-01, :on 850404,reactor Tripped on Loss of Load Channels 1 & 4,turbine Governor Fault Alarm Came in & Cleared & RCS Sample Analysis Indicated Specific Activity Exceeded 1.0 Mci/G Dose Equivalent I-131 (← links)
- 05000362/LER-1996-003-02, :on 960803,delinquent I Sample Analysis Noted Following 15% Power Change in 1 H Period.Caused by Lack of Direct CR Indication to Confirm Compliance W/Ts Requirement. RCS Sample I Analysis Completed (← links)
- 05000362/LER-1984-044-01, :on 850320,determined That Instrument & Test Procedure S023-II-3.1 Did Not Require Testing of Control Element Assembly Calculator Penalty Factors as Required by Tech Specs.Procedure Revised (← links)
- 05000362/LER-1985-010-01, :on 850329,w/unit at 96% Power,Reactor Tripped. Caused by Two Failures in Reactor Protection Sys Circuitry. Relay from Channel a Steam Generator Low Flow Bistable & Setpoint Card Replaced (← links)
- 05000362/LER-1985-009-01, :on 850326,containment Emergency Fan Cooler 3E-401 Indicated Low Flow 300 Gpm Below 2,000 Gpm Tech Specs Limit.Caused by Manual Outlet Isolation Valve Not Set to Spec.Valve Set to Spec & Flow Level Restored (← links)
- 05000362/LER-1985-011-01, :on 850401,containment Purge Isolation Sys Train B Actuated.Caused by Failed Power Supply Bridge Diode. Diode Replaced (← links)
- 05000362/LER-1985-008-01, :on 850319,reactor Tripped Due to High Steam Generator Level When Main Feed Regulating Valve FV-1111 Failed 80% Open.Caused by Corrosive Capscrew Which Allowed Detachment of Feedback Mechanism from Valve (← links)
- 05000362/LER-1985-007-02, :on 850317,safety Injection Tank Valves Pressure Tested in Closed Position W/Rcs at 351 F.Caused by Personnel Error.Briefings Will Emphasize Necessity of Monitoring & Controlling RCS Temp (← links)
- 05000362/LER-1985-003-02, :on 850312,water Found in Resistance Temp Detector 3TE-0112-1.Caused by Small Leak in Thermowell. Detector Removed from Thermowell & Installed in Spare Thermowell.Thermowell Plugged & Seal Welded (← links)
- 05000362/LER-1985-006-02, :on 850313,safety Injection Sys Automatically Actuated at RCS Pressure of 330 Psia.Caused by Unexpected Change in Position of Steam Bypass Valve.Design Change to Provide Demand/Actual Position Implemented (← links)
- 05000362/LER-1984-043-01, :on 841128,auxiliary Feedwater Sys Discharge Pipe Venting Missed in Nov & Dec 1984.Caused by Error in Incorporating Procedure Change.Requirement Added to Appropriate Procedures (← links)
- 05000362/LER-1985-002-02, :on 850220,five Snubbers on HPSI Sys Found Inoperable.Caused by Hydraulic Transient & Environ Degradation.Deficient Snubbers Replaced & Engineering Evaluation Performed (← links)
- 05000362/LER-1984-040-01, :on 841206,reactor Tripped.Caused by Turbine Loss of Load Due to Failed Power Supply.Power Supplies & Circuit Cards on Load Rejection Trip Panel Replaced & Tested (← links)
- 05000362/LER-1984-042-01, :on 841203,control Room Supervisor Recognized Failure to Perform Required Surveillance of Filled Safety Injection Tank.Caused by Unclear Instructions.Procedures Revised to Clarify Requirements (← links)
- 05000362/LER-1985-005-01, :on 850131 & 0201,Train B Containment Purge Isolation Sys Spuriously Actuated as Result of Instrument Intermittent Failure on Containment Area Radiation Monitor. Caused by Failure of Keylock Function Switch (← links)
- 05000362/LER-1984-041-01, :on 841126,containment Purge Isolation Sys Train Actuated.Caused by Grounding of Ac Power Cord Damaged by Drawer Removal from Plant Protection Sys.Personnel Cautioned (← links)
- 05000362/LER-1996-001, :on 960304,voltage Signal Actuation Loss Due to Inadvertent Relay Trip.Enhanced Turbine Startup Sequence by Slowing (from 2.5 Seconds to 8 Seconds) Operation of Trip/ Throttle Valve (← links)
- 05000362/LER-1996-001-01, Forwards Supplemental LER 96-001-01,providing Addl Info on Safety Significance of Occurrence Involving Inadvertent ESFs Actuation (← links)
- 05000362/LER-1992-002-01, :on 920219,determined That Source Range Neutron Flux Monitor Was Not Providing Audible Indication,Per TS 3.9.2.Caused by Audible Count Rate Booster Amplifer Being in Off Position.Subj Amplifer re-energized (← links)
- 05000362/LER-1984-035-01, :on 840821,review of Operator Logs Identified Train a HPSI Subgroup Relay Testing Conducted Concurrent W/Draining of Saltwater Side of Train B Component Cooling Water HX (← links)
- 05000362/LER-1984-039-01, :on 841028,RCS Indicated Specific Activity in Excess of Tech Spec Limit.Caused by Iodine Spiking.Rcs Activity Reduced to Less than 1.0 Mci by Purification Flow. Primary Coolant Activity Will Be Monitored (← links)
- 05000362/LER-1992-004, :on 920720,manual Initiation of Emergency FW Actuation Sys Occurred in Response to Trip of Mfpt.Caused by Low Bearing Lube Oil Pressure Condition of Associated MFP 3P062.PRV 3PCV-4270 Adjusted (← links)
- 05000362/LER-1985-004-01, :on 850130,analysis of RCS Sample Indicated RCS Specific Activity Exceeded 1.0 Uci/G Dose Equivalent I-131.Caused by Personnel Error.Appropriate Disciplinary Action Taken (← links)
- 05000362/LER-1985-001-02, :on 850127,RCS Water Inventory Balance Indicated 2.97 Gpm Leakage Rate,Exceeding 1.0 Gpm Limit.On 850128,containment Purge Isolation Sys Train a Actuated from Airborne Iodine Resulting from Leak (← links)
- 05000362/LER-1984-037-01, :on 840823,unit Shut Down Due to High Chlorine Conductivity in Hot Wells & Condensate Sys.Caused by Iodine Spiking (← links)
- 05000362/LER-1995-002-01, :on 950826,noticed Open Vent Valve on AFW Line for SG E089 While SG E089 Adv Open to Drain SG During Refueling.Caused by Incomplete Communication.Adv Closed & Core Alterations Halted (← links)
- 05000362/LER-1995-003-01, :on 950827,electrical Test Technicians Failed to Install Jumpers for EDG Output Breaker During Tests on Protective Relay on Supply Breaker to Train B Class 1E Bus. Technicians Involved Appropriately Disciplined (← links)
- 05000362/LER-1984-032-01, :on 840808,reactor Trip Occurred on High Steam Generator Water Level.Caused by Overfeeding Steam Generators During Manual Operation of Feedwater Control Sys.Procedure SO23-9-6 Revised (← links)
- 05000362/LER-1992-003-01, :on 920515,reactor Coolant Pump Tripped.Caused by Phase C Differential Relay Operation on RCP Supply Breaker.Rcp Motor Preventive Maint Program Modified to Include Periodic Replacement of Capacitors (← links)
- 05000362/LER-1984-031-01, :on 840803,containment Airborne Radiation Monitor 3RE-7804 Reached Alarm Setpoint & Initiated Train a Containment Purge Isolation Sys During Reactor Coolant Pump Seal Replacement (← links)
- 05000362/LER-1984-033-01, :on 840805,plastic Const Cap Discovered Obstructing Annular Suction Line Between Condensate Storage Tank T-121 & Sump Area of Condensate Storage Tank T-120. Caused by Misinterpretation of Design (← links)
- 05000362/LER-1984-030-01, :on 840727,containment Purge Isolation Sys Train a Actuated by Spurious Instrument Fail Signal from Containment Area Radiation Monitor 3RT-7856.Cause Unknown. Engineering Evaluation Underway (← links)
- 05000362/LER-1984-034-01, :on 840824,3.5 Ft of Conduit Fire Wrapping for Auxiliary Feedwater Pump Power & Control Cables Found Missing.Caused by Clerical Error.Hourly Fire Watch Initiated Until Conduit Wrapped (← links)
- 05000362/LER-1984-029-01, :on 840709,high Level Excursion Occurred Resulting in Closure of Extraction Steam Valves & Isolation of Second & First Point Heaters from Steam Supply.Caused by Steam Loss (← links)
- 05000362/LER-1992-001-01, :on 920225,containment Purge Isolation Sys Actuated.Caused by Personnel Error.Signs Installed Near Monitors Reminding Personnel of Responsibility for Control Room Notification (← links)
- 05000362/LER-1984-020, :on 840527,8 H Grab Sample Due at 0800 Not Taken Until 0945.Low-range Flow at Sample Conditioning Skid Diverted from Filter a to Filter B,Causing Blown Fuse. Alternate Flow Path Established (← links)
- 05000362/LER-1991-008-02, :on 911129,missed Firewatch Discovered.Caused by Personnel Error.Firewatch Supervisors Increased Monitoring of Roving Firewatch Personnel.Personnel Involved Received Disciplinary Action (← links)
- 05000362/LER-1984-028-01, :on 840614,determined Overtime Request Forms Not Approved as Required by Tech Spec 6.2.2.f.Cause Not Stated.Station Procedures Revised & Tracking Sys Under Development (← links)
- 05000362/LER-1984-025-01, :on 840614,isolation Valve Between Containment & Wide Range Containment Pressure Transmitter Found Closed. Cause Unknown.To Prevent Recurrence,All safety-related Instrument Manifold Valves Will Be Seal Wired (← links)
- 05000362/LER-1984-036-01, :on 840823,routine Maint Request Instead of Accelerated Request Prepared for Steam Generator wide-range Level Indicator 3LI-1125-2.Caused by Inadequate Labeling of Accident Monitoring Instrumentation (← links)
- 05000362/LER-1984-021-01, :on 840602,safety Relief Valve 3PSV-0245 on Nuclear Sample Sys Actuated.Caused by Setpoint on Valve Set Unnecessarily Low.Setpoint Raised & Valve Returned to Svc on 840606 (← links)
- 05000362/LER-1984-022-01, :on 840601,failure in Turbine Control Sys Caused High Pressure Turbine Stop Valves to Close,Resulting in Loss of Load Reactor Trip.Cause Undetermined.Module Replaced (← links)
- 05000362/LER-1984-020-01, :on 840527,grab Sample Not Taken Per 8 H Requirement.Caused by Sample Pump Isolation.Corrective Action Will Be Reported in LER Rev by 840801 (← links)
- 05000362/LER-1984-023-01, :on 840601 & 11,during Turbine Overspeed Protection Test,Reactor Trip Occurred Involving RCS Specific Activity.Caused by Iodine Spiking.Primary Coolant Activity Will Be Monitored & Evaluated (← links)
- 05000362/LER-1984-018-01, :on 840525,during Surveillance,Undervoltage Trip Device for Reactor Trip Breaker,Serial 256A4002-656-29, Exhibited Procedurally Unacceptable Response Time.Breaker Replaced W/Spare (← links)
- 05000362/LER-1991-009-02, :on 920102,delinquent Tech Spec Quarterly Surveillance on Class 1E 125 Volt DC Batteries.Caused by Personnel Error.Tech Spec Surveillances Performed as Required (← links)
- 05000362/LER-1984-015-01, :on 840427,0505 & 07,analysis of RCS Sample Indicated That Specific Activity Exceeded 1.0 Uci/G Dose Equivalent I-131.Cause Not Stated.Personnel Instructed to Perform Sampling within Required 4 H Period (← links)
- 05000362/LER-1984-013, :on 840330 & 0401,following Reactor Shutdown for Maint,Rcs Sample Analysis Indicated That RCS Specific Activity Exceeded 1.0 Uci/G Dose Equivalent I-131.Cause Indicative of Iodine Spiking Following Power Change (← links)
- 05000362/LER-1984-019-01, :on 840505,post-maint Testing Not Performed Following Packing Adjustment to Reduce Leakage on Containment Isolation Valves 3HV9205 & 3HV9212.Caused by Personnel Error.Operations Personnel Briefed (← links)
- 05000362/LER-1995-001-01, :on 950722,discovered That RCS Pressure Boundary Weepage Occurred During Cycle 7 Operation Due to PWSCC of Alloy 600 Type Matls.Accessible Exterior of Two RCS Hot Leg Nozzles Will Be Replaced W/Alloy 690 Nozzles (← links)
- 05000362/LER-1984-009, :on 840317,during Surveillance of Sys Alignment Status,Manual Isolation Valves Found Closed,Rendering Both Trains of Containment Spray Sys Inoperable.Procedure Modified to Clarify Valve Lineup Requirements (← links)
- 05000362/LER-1984-009-01, Forwards LER 84-009-01 (← links)
- 05000362/LER-1984-010, :on 840424,train a Containment Purge Isolation Sys Spuriously Actuated by Electrical Noise Spikes from Containment Area Radiation Monitor 3RT-7804.Cause Under Investigation (← links)
- 05000362/LER-1984-016-01, :on 840428,undervoltage (UV) Trip Device for Reactor Trip Breaker 256A4002-656-29 Exhibited Unacceptable Response Time.Following Maint,Breaker Yielded Acceptable UV Response Time.Breaker Returned to Svc (← links)
- 05000362/LER-1984-017-01, :on 840505 & 08,reactor Trip Occurred on High Steam Generator Water Level.Caused by Overfeeding Steam Generators W/Feedwater Control Sys in Manual Control.Design Changes Under Consideration (← links)
- 05000362/LER-1984-027-01, :on 840612,daily Containment Particulate & Iodine Samples Not Taken Following Reactor Trip.Caused by Chemistry Technician Oversight.Memo Issued (← links)
- 05000362/LER-1984-026-01, :on 840612,containment Purge Isolation Sys Actuated Following Installation of Iodine Channel Module W/Defective Alarm Defeat Button.Operability of Alarm Defeat Function to Be Verified (← links)
- 05000362/LER-1984-024-01, :on 840611,spurious Penalty Factor from Control Element Assembly Calculator 1 Caused All Four Core Protection Calculators to Generate Low DNBR Trip Signals. Caused by Hardware Failure.Boards Replaced (← links)
- 05000362/LER-1984-008, :on 840310,operators Received Indications of Possible Saltwater Leak in One Main Condenser Quadrant. Caused by Water in Air Removal Piping.Drain Lines Cleaned (← links)
- 05000362/LER-1984-007-01, :on 840305,spurious Reactor Protection Sys Trip Occurred.Cause Undetermined.No Restrictions Placed on Plant Operations as Result of Trip (← links)
- 05000362/LER-1984-006-01, :on 840226,during Surveillance,Reactor Trip Breaker 8 Undervoltage Device Did Not Actuate.Caused by Metal Filings Between Two Terminals of Control Room Pushbutton.No Corrective Action Planned (← links)
- 05000362/LER-1984-011-01, :on 840227,during Investigation of Reactor Trip Breaker Pushbutton Event,One Set of Leads in Each of Four Plant Protection Sys Bays Found Disconnected.Caused by Leads Disconnected During Earlier Surveillance (← links)
- 05000362/LER-1984-004-01, :on 840222,three Safety Injection Pumps Started & Injected 150 Gallons of Water Into Rcs.Caused by Dirty Contacts on Relay Hold Pushbutton.Contacts Cleaned (← links)
- 05000362/LER-1983-120-03, /03L-0:on 831222,while in Mode 1,both Main Feedwater Pumps Tripped Due to Low Suction Pressure.Caused by High Water Demand on Condensate Storage Tank 3T-121 by Auxiliary Feedwater Sys.Review Underway (← links)
- 05000362/LER-1983-113-03, /03L-0:on 831210,control Element Assembly Calculator 2 Failed.Caused by Faulty Central Processing Unit.Board Replaced (← links)
- 05000362/LER-1983-115-03, /03L-0:on 831214,core Protection Calculator Channel C Local Power Density Trip & DNBR Received in Control Room.Caused by Failed Module Card.Card Replaced & Order Written to Troubleshoot & Repair Card (← links)
- 05000362/LER-1991-005-02, :on 911104,delinquent Core Protection Calculator TS Surveillance Exceeded by 1 H & 5 Min.Caused by Procedural Info Not Disseminated.Info Reviewed by Personnel (← links)
- 05000362/LER-1991-007-02, :on 911107,fuel Handling Bldg Train a Spuriously Actuated as Radiation Monitor 3RI-7822 Returned to Svc.Caused by Intermittent Failure of Internal to Normal/ Bypass Switch.Handswitch Replaced (← links)
- 05000362/LER-1983-108-03, /03L-0:on 831125,qualified Safety Parameter Display Sys (QSPDS) Channel a Failed & Declared Inoperable. Caused by Interference in Plasma Display Unit Due to Ground Loops.Grounding Configuration Modified (← links)
- 05000362/LER-1991-003-02, :on 910902,reactor Core Operating Limit Supervisory Sys Function Realigned,Stopping Execution of Power Distribution Calculations.Caused by Backup Computer Failure.Circuit Board Replaced (← links)
- 05000362/LER-1984-012-01, :on 840330,MSIVs 3HV8204 & 5 Failed to Close within Required 5 S.Caused by Cylinder Nitrogen Pressure Above Min Specified Limit W/Valves Open.Tech Spec Change Will Be Submitted to Increase Closure Time (← links)
- 05000362/LER-1984-013-01, :on 840330 & 0401,following Reactor Shutdown for Maint,Rcs Exceeded 1.0 Uci/G Dose Equivalent I-131. Caused by Iodine Spiking Following Power Change.Purification Flow Increased & RCS Activity Reduced (← links)
- 05000362/LER-1982-008-03, /03L-0:on 821215,while in Mode 5,RCS Chloride Level Exceeded Limit of 0.15 Ppm.Caused by Displacement of Chloride from Purification Ion Exchange Resin to Rcs. Resin Replaced (← links)
- 05000362/LER-1983-110-03, /03L-0:on 831202 & 22,subj Control Element Assemblies Slipped & Became Misaligned from Other Assemblies in Group.Caused by Sluggish Operation of Assemblies,Causing Upper & Lower Grippers to Sequence Improperly (← links)
- 05000362/LER-1983-112-03, /03L-0:on 831130,regulating Group 6 Control Element Assemblies Exceeded Time Allowed Below long-term steady-state Insertion Limit.Caused by Need to Control Axial Shape Index Oscillations (← links)
- 05000362/LER-1983-117-03, /03L-0:on 831202,control Element Assembly 64 Slipped 10 Inches.Caused by Faulty IC Chip on Rod Timer Card.Timer Card Replaced (← links)
- 05000362/LER-1983-106-03, /03L-0:on 831117,Surveillance Test 5023-3-3.6 Indicated That DNBR Margin Not within Allowable Limits. Caused by Conservatism Inherent in Procedure.Acceptable DNBR Margin Verified within 1 H (← links)
- 05000362/LER-1983-107-03, /03L-0:on 831124,component Cooling Water Outlet Valve 3HV-6367 Failed to Open Fully,Rendering Train a Containment Emergency Cooling Unit 3E-401 Inoperable.Caused by Premature Opening of Torque Switch (← links)
- 05000362/LER-1983-103-03, /03L-0:on 831119,both Main Feedwater Pumps Tripped Due to Low Suction Pressure.Caused by High Water Demand Placed on Condensate Storage Tank 3T-121.Tech Spec Proposed Re Min Level Requirements (← links)
- 05000362/LER-1983-104-03, /03L-0:on 831205,high Auxiliary Feedwater (AFW) Flow Rate Erroneously Indicated When No Flow Existed.Steam Generator E-089 AFW Flow Rate Channel Declared Inoperable. Caused by Loose Voltage Converter Terminal (← links)
- 05000362/LER-1983-083-03, /03L-0:on 831123,diesel Generator 3G003 Tripped & Could Not Be Restarted.Caused by Blown air-start Sys Air Compressor Head Gaskets.Gaskets Replaced (← links)
- 05000362/LER-1983-100-03, /03L-0:on 831116,w/util in Mode 1,containment Airborne Monitor 3RI-7804C Found in Constant Alarm State. Caused by Containment Radioactivity Increasing to Greater than Setpoints.New Setpoints Implemented (← links)
- 05000362/LER-1983-102-03, /03L-0:on 831116,channel a of post-LOCA Hydrogen Monitor Failed & Declared Inoperable.Caused by Shorted Capacitor in Circuit Board Resulting in Blown Fuse.Circuit Board & Fuse Replaced (← links)
- 05000362/LER-1983-105-03, /03L-0:on 831119 & 29,mini-purge Exhaust Containment Isolation Valve 3HV9825 Failed to Close within Max Isolation Time.Caused by Imbalance Between Opening Air Supply Pressure & Closing Spring Tension (← links)
- 05000362/LER-1983-109-03, /03L-0:on 831111,qualified Safety Parameter Display Sys Channel a Began Intermittently Failing & Declared Inoperable.Caused by Failed Power Supply to Plasma Display.Power Supply Replaced (← links)
- 05000362/LER-1983-098-03, /03L-0:on 831108,qualified Safety Parameter Display Sys Channel a Observed Continuously Cycling Through Pages of Display & Channel Declared Inoperable.Caused by Loose Circuit Board.Loose Board Reseated (← links)
- 05000362/LER-1983-054-03, /03L-0:on 831111,low Level Alarm for Containment Spray Chemical Storage Tank 3T-105 Received.Caused by Failure of Manway Cover Gasket.Gasket Replaced & Leak Tested on 831116 (← links)
- 05000362/LER-1983-101-03, /03L-0:on 831111,Channel B Experienced More than Three auto-restarts within 12 H Period.No Cause Found. Channel Operability Demonstrated by Completion of Channel Functional Test on 831111 (← links)
- 05000362/LER-1983-089-03, /03L-0:on 831105,auxiliary Feedwater Pump 3P-140 Declared Inoperable to Replace Broken Torque Switch on Motor Operator for Steam Inlet Valve 3HV-4716.Switch Overtightened During Mfg.Switch Replaced (← links)
- 05000362/LER-1983-097-03, /03L-0:on 831029 & 30,control Element Assembly (CEA) 57 & on 831101,CEA 61,dropped More than 19 Inches. Caused by Sluggishness of CEA Grippers.Timing Sequences & Voltages Adjusted to Compensate (← links)
- 05000362/LER-1983-099-03, /03L-0:on 831031,during Reactor Trip from Mode 1, Auxiliary Feedwater Pump 3P-140 Failed to Start.Cause Under Investigation.Pump Manually Reset & Started (← links)
- 05000362/LER-1983-096-03, /03L-0:on 831022,auxiliary Feedwater Pumps 3P-140 & 3P-504 Rendered Inoperable to Allow Repairs on Emergency Feedwater Actuation Sys 1 Circuitry.Caused by Failed solid-state Relay.Relay Replaced (← links)
- 05000362/LER-1983-080-03, /03L-0:on 831012,during RCS Water Inventory Balance,Min Temp Dropped Below Tech Spec Min.Caused by Operator Delay in Diluting RCS to Compensate for Xenon Buildup.Min Temp Specs Being Reviewed (← links)
- 05000362/LER-1983-095-03, /03L-0:on 831015,channel a Accident Monitoring Instrumentation for Pressurizer Water Level Indication Declared Inoperable.Caused by Minor Leakage from Ref Leg Tubing Fitting & Pipe Plug.Leak Repaired (← links)
- 05000362/LER-1983-087-01, /01T-0:on 831026,plant Monitoring Sys Computer Failed While Entering Limiting Condition of Operation 3.10.2.Caused by Moving Head Disk Error in Computer.Cause of Disk Error Unknown (← links)
- 05000362/LER-1983-094-03, /03L-0:on 831012,plant Protection Sys Channel C Observed in Tripped Condition.Caused by Test/Calibr Card Failure.Card Removed & New Card Installed & Tested (← links)
- 05000362/LER-1983-092-03, /03L-0:on 831015,27 & 1107,core Protection Calculator B Trips Received.Caused by Faulty Resistance Temp Device.Temp Device Replaced (← links)
- 05000362/LER-1983-081-03, /03L-0:on 831012,RCS Water Inventory Balance Not Completed within Required Surveillance Interval.Caused by Operation Supervisor Not Properly Rescheduling Inventory. Inventory Balance Completed (← links)
- 05000362/LER-1983-093-03, /03L-0:on 831017,core Protection Calculator Channel C & ex-core Linear Power Level Channel C Declared Inoperable.Caused by Failed Linear Amplifier Card.Card Replaced (← links)
- 05000362/LER-1983-086-03, /03L-0:on 831008,control Element Assembly Calculator (Ceac) 2 Declared Inoperable Due to Sensor Failure Light Actuation & Invalid CEA Position Indications. Caused by Personnel Interrupting Power Supply (← links)
- 05000362/LER-1983-134-03, /03L-0:on 831007,while Component Cooling Water Pump PO24 Out of Svc to Verify Sequence Relay Actuation, Relay Actuated Outside Tech Spec Limits.Caused by Failed Relay.Relay Replaced (← links)
- 05000362/LER-1983-084-03, /03L-0:on 830928,during Monthly Surveillance, Auxiliary Feedwater Flow Rate Channel Declared Inoperable. Caused by Indication 3FI-4720-2 Out of Calibr Due to Instrument Drift.Indicator Recalibr (← links)
- 05000362/LER-1983-068-01, /01T-0:on 830922,control Room Cabinet Area Emergency Air Conditioning Train a Unit 3ME427 Removed from Svc for Maint.Limiting Condition for Operation 3.0.4 Violated by Mode Changes.Process Revised (← links)
- 05000362/LER-1983-079-03, /03L-0:on 830929,1016 & 18,core Protection Calculator Channel a Failed,As Indicated by Channel a DNBR & Local Power Density Trips.Caused by Multi-Purpose Acquisition & Control Sys Error Code 10 (← links)
- 05000362/LER-1983-071-03, /03L-0:on 830929,unusual Event Declared After Unidentified Leakage of 1.19 Gpm Detected in Rcs.Caused by Minor Leakage Past Either Chemical & Vol Control Sys Letdown Valve PSV-9206 or PSV-9207 (← links)
- 05000362/LER-1983-070-03, /03L-0:on 830923,control Element Assembly Calculator 1 Declared Inoperable When Control Element Assembly 15 Indicated Spurious Rod Movement.Caused by Failed Circuit Board (← links)
- 05000362/LER-1983-075-03, /03L-0:on 830922,low Pressure Turbine Stop Valve 3UV2200V Declared Inoperable After Insp Revealed Valve 50% Open.Caused by Lodged Piece of Wood Inside Piping Between Disc & Seat.Wood Removed (← links)
- 05000362/LER-1983-065-03, /03L-0:on 830905 & 12,w/unit in Mode 2 at Zero Power,High Range in-containment Radiation Monitor 3RI-7820-1 Found in Failed Low Condition & Declared Inoperable.Caused by Faulty Electrical Cable Penetration Path (← links)
- 05000362/LER-1983-076-03, /03L-0:on 830907,during Shift Surveillance, Control Element Assembly Calculator 2 Declared Inoperable. Caused by Poorly Seated Circuit Board.Circuit Boards Resealed (← links)
- 05000362/LER-1983-073-01, /01T-0:on 830929,charging & Letdown Flows Isolated by Closing Manual Isolation Valves S31208MU084 & S31208MU091 in Violation of Limiting Conditions of Operation.Caused by Personnel Error.Valves Opened on 830930 (← links)
- 05000362/LER-1983-064-03, W/Unit in Mode 2,ex-core Logarithmic Power Safety Channel C Declared Inoperable & on 830918,channel B Declared Inoperable.Caused by Failed Cable Connectors.Connectors Replaced (← links)
- 05000362/LER-1983-069-03, /03L-0:on 830917,w/unit in Mode 3,condenser Air Ejector wide-range Gas Monitor 3RI-3870 Declared Inoperable. Caused by Loss of Communication Between RM80 Microprocessor & RM23 Control Room Readout.Data Base Reloaded (← links)
- 05000362/LER-1983-055-03, /03L-0:on 830826,core Protection Channel a Declared Inoperable & Bypassed Due to Failed High Reactor Coolant Cold Leg Temp Input.Caused by Failed Open Resistance Temp Detector 3TE-9179-1.Detector Replaced (← links)
- 05000362/LER-1983-066-03, /03L-0:on 830829 & 31,while in Mode 2,control Element Assembly Calculator 2 Experienced Excessive Auto Restarts.First Event Caused by Faulty Central Processing Unit Board.Cause for Second Event Unknown (← links)
- 05000362/LER-1983-060-03, /03L-0:on 830830,control Element Assembly Calculator 1 & Core Protection Calculator Channel B Inoperable.Caused by Failed Input Amplifier Card.Card Replaced (← links)
- 05000362/LER-1983-106-01, /01L-0:on 830907,surveillance Testing Resulted in Unsatisfactory Float Voltage for Pilot Cells 11 & 13 & Unsatisfactory Total Battery Terminal Voltage.Caused by Personnel Error (← links)
- 05000362/LER-1983-059-03, /03L-0:on 830824,w/unit in Mode 3,following Performance of Radiation Monitoring Shiftly Surveillance, Main Steam Line Radiation Monitor 3RI-7874-B1 Declared Inoperable.Caused by Loosened Pin (← links)
- 05000362/LER-1983-058-03, /03L-0:on 830812,containment Isolation Valve 3HV-0512 Gave Dual Indication of Position Following Demand to Close.Valve Declared Inoperable.Caused by Valve Stuck in mid-position & 3-amp Breaker Tripped (← links)
- 05000362/LER-1983-061-03, /03L-0:on 830813,channel B Pressurizer Pressure Indication 3PI-0102B Observed to Be Cycling Rapidly.Caused by Failure of Setpoint Bistable Card in Plant Protection Sys Circuitry.Faulty Card Replaced (← links)
- 05000362/LER-1983-057-03, /03L-0:on 830809,range Level Indicator LI-1125-2 for Steam Generator E-088 Observed Reading Offscale High. Caused by Air Entrapped in Sensing Lines.Lines Vented & Investigation Re Generic Effect Initiated (← links)
- 05000362/LER-1984-003, :on 840107,while in Mode 3 at Zero Power,During Planned Reactor Shutdown,Control Element Assembly (CEA) 64 Slipped 30 Inches.Caused by Sluggish Operation of CEA Drive Mechanism.Vendor Requested to Review Event (← links)
- 05000362/LER-1983-118-03, /03L-0:on 831229,DNBR Outside Allowable Limits. Caused by Core Operating Limit Supervisory Sys Being Out of Svc.Sys Returned to Svc (← links)
- 05000362/LER-1983-119-03, /03L-0:on 831227,core Protection Calculator Channel a Failed.Caused by Multipurpose Acquisition & Control Sys Error Code 10.No Corrective Action Taken Since Failure Expected to Occur Occasionally (← links)
- 05000362/LER-1983-116-13, /13X-0:on 831230,during Reactor Trip Breaker (Rtb) Surveillance Testing,Undervoltage Trip Device of Rtb 9 Exhibited Procedurally Unacceptable Response Time.Trip Device Removed from Svc.Cause Not Determined (← links)
- 05000362/LER-1984-002, :on 840107,penetration Bldg Airborne Iodine of Noble Gas Concentrations Increased Above Precautionary Level.Cause Under Investigation.Engineering Evaluation Will Determine Corrective Actions (← links)
- 05000362/LER-1984-005, :on 840106,following Reactor Trip for Testing, RCS Sample Analysis Indicated That RCS Specific Activity Exceeded 1.0 Uci/G Dose Equivalent.Cause Indicative of Iodine Spiking Following Power Change (← links)
- 05000362/LER-1984-001, :on 840101,precautionary Penetration & Radwaste Bldgs Evacuation Initiated When Units 2 & 3 Area Radiation Monitors & Plant Vent Stack Monitors Alarmed.Caused by Routine Draining of Waste Gas Header Line (← links)
- 05000362/LER-1983-111-03, /03L-0:on 831222,RCS Specific Activity Exceeded 1.0 Mci/G Dose Equivalent I-131.Caused by Iodine Spiking Following Power Changes Associated W/Two Reactor Trips. Purification Flow Increased (← links)
- 05000362/LER-1983-004-03, /03L-0:on 830118,temp Indicator TI-0111BX for Loop 1 Hot Leg on Panel 3L-411 Declared Inoperable.Caused by Improper Termination on Cable 3ARL12449 Which Runs Temp Element TE-0111X1.Cable Termination Corrected (← links)
- 05000362/LER-1983-019-03, /03L-0:on 830118,Mode 3 Entered W/Eight Fire Detectors Inoperable.Caused by Spurious Alarm Not Reset Following Const Activity.Compensatory Measures Initiated. Personnel Counseled (← links)
- 05000362/LER-1983-002-03, /03L-0:on 830118,review of Operational Surveillance Records Revealed That RCS Water Inventory Due on 830118 Missed,Per Tech Specs.Caused by Nontransferance of Surveillance to Surveillance Control Sheet at Shift Change (← links)
- 05000362/LER-1983-003-03, /03L-0:on 830118,pressurizer Safety Valve Position Indicators Declared Inoperable.Caused by Poorly Attached Position Indication Brackets.Brackets Replaced & After Functional Test & Calibr,Indicators Declared Operable (← links)
- 05000362/LER-1991-004-02, :on 910930,discovered That TS Surveillance Required to Be Performed Once Per 24-h Exceeded Surveillance Interval by 40 Minutes.Caused by Control Room Personnel. Appropriate Disciplinary Action Administered (← links)
- 05000362/LER-1983-082-03, /03L-0:on 831005,qualified Safety Parameter Display Sys Train B Taken Out of Svc Due to Smoky Odor Eminating from Cabinet.Caused by Failed Circuit Board. Circuit Board Replaced (← links)
- 05000362/LER-1983-085-03, /03L-0:on 831007,low Pressure Turbine 1,intercept Valve 3UV2200L,failed Trip Solenoid a & B Tests During Monthly Surveillance Test S023-3-3.34.Caused by Failed Logic Card in Control Circuit.Logic Card Replaced (← links)
- 05000362/LER-1983-088-03, /03L-0:on 831005,RCS Hot Leg Sample Valve 3HV0508 Showed Intermediate Indication & Could Not Be Closed from Control Room.Caused by Electrical Malfunction.Electrical Leads to Valve Removed & Valve Locked Closed (← links)
- 05000362/LER-1983-074-03, /03L-0:on 830909,containment Airborne Radiation Monitor 3RI-7804C in Continuous Alarm State & Declared Inoperable.Caused by Alarm Setpoint Being Set Too Low.New Setpoint Established (← links)
- 05000362/LER-1983-067-03, /03L-0:on 830901,one-phase Trip of Supply Breaker for part-length Control Element Assembly (CEA) 32 Rendered CEA Incapable of Withdrawal.Caused by Failure of Circuitry Components.Components Replaced (← links)
- 05000362/LER-1983-062-03, /03L-0:on 830901 & 05,during Low Power Physics Testing in Mode 2,control Element Assembly 84 Dropped More than 19 Inches.Caused by Improper Timing of Assembly Grippers.Timing Adjusted (← links)
- 05000362/LER-1983-072-03, /03L-0:on 830831,w/unit in Mode 2,containment Water Level Wide Range Train B Instrumentation Failed.Caused by Water Trapped in Column for Level Transmitter 3LT-9388-2. Instrument Recalibr & Declared Operable (← links)
- 05000362/LER-1983-063-03, /03L-0:on 830811,during Normal Start of Auxiliary Feedwater Pump Turbine,Steam Inlet Valve HV-4716 Did Not Open Completely.Cause of Valve Trip During Pump Starting Unknown.Valve Reset (← links)
- 05000362/LER-1983-053-03, /03L-0:on 830816,boronometer 3AE0203 Declared Inoperable Following Downward Drifting Readings.Caused by High Linear Amplifier Setting & High Voltage Adjustment. Boronometer Recalibr (← links)
- 05000362/LER-1991-007-01, :on 910520,environ Qualification Discrepancies Occurred During Const & Maint Activities.Maint Procedures Enhanced to Require Thorough Physical Insp of Newly Installed Equipment (← links)
- 05000362/LER-1983-045-03, /03L-0:on 830614,while Performing QC Insp of Fire Barrier Penetration Seals in Mode 5,five Seals in Diesel Generator Bldg Damaged.Cause Not Determined.Fire Watch in Effect Until Seals Repaired (← links)
- 05000362/LER-1983-050-03, /03L-0:on 830717,outer Containment Airlock Door Jammed in Open Position.Caused by Broken Cam Follower.Cam Follower Replaced (← links)
- 05000362/LER-1994-002-01, :on 940912,momentary Loss of Voltage on Class 1E 4 Kv Bus 3A06 & Loss of Voltage Signal Occurred Due to Jarring of door-mounted Protective Relay.Normal Power to Bus 3A06 Restored within 72 H Allowed by TS (← links)
- 05000362/LER-1983-042-03, /03L-0:on 830401,early Warning Fire Detector in Zone 6 Found Inoperable During 6-month Fire Detection Channel Functional Test.Caused by Melted Element in Fusible Heat Detector.Detector Replaced (← links)
- 05000362/LER-1983-036-03, Early Warning Fire Detectors in Zone 41 Found Inoperable During 6-month Fire Detection Channel Functional Test.Caused by Faulty Wiring Connection.Wiring Connection Repaired (← links)
- 05000362/LER-1983-051-03, /03L-0:on 830712,while in Mode 4,condenser Air Ejector Monitor 3RT-7870 Discovered to Have Low Flow During Routine Daily Surveillance & Declared Inoperable.Caused by Valve Manipulation by Unauthorized Personnel (← links)
- 05000362/LER-1983-049-03, /03L-0:on 830713,low Vol Control Tank Alarmed & Letdown Flow Ceased.Caused by Improper Automatic Sequencing of Radwaste Filter Backflush Sys.Relief Valve Refurbished (← links)
- 05000362/LER-1983-033-03, /03L-0:on 830331,fire Spray Sys That Protects Control Bldg Cable Riser Elevator 30 Ft Spuriously Activated.Cause Unidentified.Corrective Action Re Proper Resetting Technique to Be Provided to Personnel (← links)
- 05000362/LER-1983-025-03, /03L-0:on 830404,fire Spray Sys Spuriously Actuated.Fire Detectors Inoperable.Cause Unknown. Compensatory Measures Remained in Place Until Fire Spray Sys Returned to Svc on 830416 (← links)
- 05000362/LER-1983-031-03, /03L-0:on 830222,sprinkler Sys That Protects Diesel Generator G-002 Spuriously Initiated Leaving Actuation Fire Detection Sys Inoperable Until Reset.Cause Unknown.Firewatch Established (← links)
- 05000362/LER-1983-030-03, /03L-0:on 830224,spray Sys That Protects Cable Tunnel Section 10 Spuriously Actuated Leaving Actuation Fire Detector Inoperable.Possible Cause Due to Const Activity in Area.Firewatch Established (← links)
- 05000362/LER-1983-026-03, /03L-0:on 830307,during Surveillance Testing, 125-volt Battery Bank D (3B010) Failed to Meet Tech Spec Requirements & Declared Inoperable.Caused by Low Voltage & Low Specific Gravity for Cell 14.Design Mod Implemented (← links)
- 05000362/LER-1983-027-03, /03L-0:on 830307,train B RCS Subcooling Margin Monitor Failed to Meet Tech Spec Requirements & Declared Inoperable.Caused by Sys Ground on Qualified Safety Parameter Display Sys.Monitor Isolated (← links)
- 05000362/LER-1983-024-03, /03L-0:on 830302,pressurizer Surge Line Sample Valve 3HV-0512 Failed to Close During Stroke Testing.Caused by Mechanical Binding of Packing.Engineering Evaluation to Be Conducted to Determine If Design Change Necessary (← links)
- 05000362/LER-1991-001-02, :on 910315,automatic Reactor Trip Occurred. Caused by non-1E Uninterrupted Power Sys Failure.Inverters Replaced & Mod Implemented During Next Outage of Sufficient Duration (← links)
- 05000362/LER-1983-029-01, Vendor Identified Concern Re Valve Position Indication for Westinghouse Gate Valve. Caused by Design Defect.Instructions to Visually & Manually Check Valve Instituted (← links)
- 05000362/LER-1983-034-01, /01L-0:on 830527,potential for Loss of Indication During & After Seismic Event Discovered During Testing of Qualified Safety Parameter Display Sys Akin to Installed Sys.Caused by Loose Lockwasher (← links)
- 05000362/LER-1983-005-01, /01T-0:on 830222,loose Snubbers & Hangers Associated W/Rcs Sampling Valves 3HV508 & 3HV517 Observed. Caused by Removal of Associated Components for Maint. Snubbers Connected & Declared Operable (← links)
- 05000362/LER-1983-016-03, /03L-0:on 830207,plant Tour Revealed Failed Temporary Instrument Line on Auxiliary Feedwater Pump Turbine Stop Valve 3HV-4716.Cause Not Stated.Line Replaced & Pump Declared Operable.Investigation Continuing (← links)
- 05000362/LER-1983-020-01, /01T-0:on 830203,review of ASME Test Data Revealed Error in Hydrotesting of Line from Component Cooling Water Train a to HPSI Pump 3P)17.Cause Due to Misinterpretation of Hydrostatic Test Pressure Requirement.Line Retested (← links)
- 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 (← links)
- 05000362/LER-1983-008-03, /03L-0:on 830123,while in Mode 3,Channel a Level Indicator 3LI-1113-1 for Steam Generator E-089 Declared Inoperable When Indicator Failed Tech Spec Surveillance. Caused by Instrument Drift.Indicator Recalibr (← links)
- 05000362/LER-1983-011-03, /03L-0:on 830123,pressure Indicator 3PI-8300 for Steam Generator E-088 Declared Inoperable.Caused by Inadvertent Isolation of 3PI-8300 from Detector 3PT-8300. Valve Lineup Corrected (← links)
- 05000362/LER-1983-010-03, /03L-0:on 830123,pressure Indicator 3PI-8301 for Steam Generator E-089 Declared Inoperable.Caused by Inadvertent Isolation of 3PI-8301 from Detector 3PT-8301. Valve Lineup Corrected (← links)
- 05000362/LER-1983-012-03, /03L-0:on 830123,while in Mode 3,hot Leg Temp Indicator TI-0111BX Failed Tech Spec Surveillance & Declared Inoperable.Temp Element Tied Down & Could Not Be Connected to Complete Surveillance.Tie Down Removed.Indicator Tested (← links)
- 05000362/LER-1983-021-03, /03L-0:on 830131,tendon 9 Required Liftoff Force in Excess of Tech Spec.Caused by Less than Anticipated Relaxation Rate When Liftoff Values Calculated.Tech Spec Change Will Correct Liftoff Force Criteria (← links)
- 05000362/LER-1983-009-03, /03L-0:on 830130,containment high-range Radiation Monitor Channel RI-7820-2 Failed During Surveillance Test. Cause Not Determined.Monitor Channel Electrical Unit Replaced & Unit Returned to Manufacturer for Analysis (← links)
- 05000362/LER-1983-015-03, /03L-0:on 830128,safety Injection Tank Pressure Dropped Below Allowable Limits.Caused by Failure of 3PSV-9346 to Reseat Following Overpressurization.Valve Being Tested to Determine If Repair or Replacement Needed (← links)
- 05000362/LER-1983-014-03, /03L-0:on 830125,safety Injection Tank Pressure Dropped Below Allowable Limits.Caused by Failure of 3PSV-9346 to Reseat Following Overpressurization.Valve Being Tested to Determine If Repair or Replacement Needed (← links)
- 05000362/LER-1982-002-03, /03L-0:on 821119,during Fuel Loading Operations, Water Observed Leaking Through Equipment Hatch Seal Into Containment.Caused by Existing Gap Around Perimeter of Hatch.Bolts Retightened (← links)
- 05000362/LER-1983-017-03, /03L-0:on 830205,tank Vol & Pressure for Safety Injection Tank 3T-008 Found Outside Allowable Limits.Caused by Leakage Past Header Isolation Valve 3HV-9324 & Backflow Through Outlet Check Valve MU040 (← links)
- 05000362/LER-1983-001-03, Component Cooling Water Sys Noncritical Loop Return Containment Isolation Valve 3HV-6216 Rendered Inoperable.Caused by Power Loss When Valve Actuator Supply Breaker Opened for Troubleshooting (← links)
- 05000362/LER-1994-001-01, :on 940416,channel B Containment Emergency Sump Level Lumigraph Indicator 3LI-9389-2 Observed W/No Light Bars Illuminated.Caused by Failure of Level Signal Converter 3LY-9389-2.Failed Signal Converter Replaced (← links)
- 05000362/LER-1982-010-03, /03L-0:on 821115,during Surveillance Testing,Fire Detection Instrumentation Found Inoperable.Testing Revealed Need to Replace/Repair Parts of Sys.Replacements/Repairs Expected to Be Complete in 90 Days (← links)
- 05000362/LER-1982-011-03, /03L-0:on 821217,during Mode 5,Zone 41 (Cable Spreading Room) Fire Detectors Removed from Svc to Permit Repair of Cables.Caused by Minor Cable Damage During Const Activities.Cable Replaced (← links)
- 05000362/LER-1982-003-03, /03L-0:on 821127,while in Mode 6,channel 2 Startup Monitor 3JI-006 Lost Visual Indication & Declared Inoperable.Caused by Loss of Power When Monitor Control Ctr 3BN Taken Out of Svc.Load Lists Will Be Reviewed (← links)
- 05000362/LER-1993-005, :on 931130,containment Isolation Valve 3HV6371 Failed to Open.Caused by Inverted Upstream Skirt.Valve Correctly Assembled,Tested & Determined Operable During Refueling Outage (← links)
- 05000362/LER-1993-006-01, :on 931213,reactor Protection Sys Actuation Occurred During Mode 3.Caused by Manual Trip of RCP 3P002. No Corrective Actions Necessary (← links)
- 05000362/LER-1993-005-01, :on 931130,determined That CCW Return Valve 3HV6371 Incorrectly Assembled.Investigation of Incorrect Assembly of Subj Valve Initiated.Investigation Rept Will Be Complete by 940131 (← links)
- 05000362/LER-1993-004, :on 930705,reactor Tripped Due to Loss of Vacuum.Replaced Failed Instrument Air Tubing & Inspected Tubing for Units 2 & 3 (← links)
- 05000362/LER-1993-003, :on 930527,discovered Three Containment Isolation Valves w/motor-operator Switch Setttings Nonconservative,Per GL 89-10.Caused by Using Outdated Configuration.Valves Secured (← links)
- 05000362/LER-1993-002-01, :on 930309,discovered That TS Surveillance Required to Be Performed at Least Once Per 24 H Had Not Been Performed.Caused by CR Operator.Refresher Training Will Be Conducted for All License Operators (← links)
- 05000362/LER-1993-007-01, :on 931128,EDG 3G002 Output Breaker Tripped. Caused by Two Failed Bolts.Corrective Action:Failed Bolts Were Replaced & Tested (← links)
- 05000362/LER-1990-014-02, :on 901223,containment Spray Sys Train B Pump Discharge Pressure Indicator 3PI-0303-2 Did Not Display Correct Pressure Reading.Caused by Metallic Particle Near Feedback Coil.Transmitter Replaced (← links)
- 05000362/LER-1982-007-03, /03L-0:on 821211,during Mode 5,review of Strip Chart Recordings of RCS Temps During Filling & Venting Operations on 821210 Indicated RCS Heatup Rate Exceeded. Caused by Inadequate Attention to Heatup Restrictions (← links)
- 05000362/LER-1982-007, Forwards LER 82-007/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1982-005-03, /03L-0:on 821205,during Mode 5,diesel Generator 3GOO3 Taken Out of Svc Leaving Boration Flow Paths W/O Emergency Power Sources.Caused by Personnel Error Due to Failure to Recognize Consequences.Personnel Counseled (← links)
- 05000362/LER-1982-005, Forwards LER 82-005/03L-0.Detailed Event Analysis Submitted (← links)
- 05000362/LER-1991-002-02, :on 910412,inadvertent Opening of Containment Purge Sys Isolation Valve Occurred.Caused by Opening of 3HV-9821 Using CR Handswitch for Valve.Valve Closed. Surveillance Procedure Revised (← links)
- 05000362/LER-1983-046-01, /01T-0:on 830714,review of Incomplete Abnormal Valve Alignment Record Revealed That Valves MU-075 & MU-076 Improperly Closed During Fuel Transfer.Caused by Improper Execution of Administrative Controls (← links)
- 05000362/LER-1983-043-01, /01T-0:on 830708,train B Emergency Chiller E-335 Declared Inoperable,Rendering Equipment Inoperable in Rooms Where Chilled Water Provided.Caused by Control Circuitry or Mechanical Malfunction in Power Supply Breaker (← links)
- 05000362/LER-1983-044-01, /01T-0:on 830711,2-inch Manual Isolation Valve Opened to Provide Svc Air to Support Work in Containment. Caused by Personnel Ignorance of Tech Specs.Personnel Disciplined (← links)
- 05000362/LER-2013-001, Regarding Emergency Diesel Generator (EDG) Governor Actuator Hydraulic Fluid Contamination (← links)
- 05000362/LER-2012-002, Regarding Steam Generator Tube Degradation Indicated by Failed In-Situ Pressure Testing (← links)
- 05000362/LER-2012-001, (Songs), Unit 3 Regarding Unit 3 Manual Reactor Trip Due to Steam Generator Tube Leak (← links)
- 05000362/LER-2011-003, Regarding Wiring Error in Charging Pump Motor Circuitry Results in Loss of Fire Isolation Capability (← links)
- 05000362/LER-2011-002, Regarding As-Found Condition of Lovs Relays Not within Technical Specification Limits (← links)
- 05000362/LER-2011-001, (SONGS) Unit 3 Regarding Missed TS LCO Surveillance Requirement When One Source Range Monitor Removed from Service (← links)
- 05000362/LER-2009-002, Regarding Emergency Diesel Start Failure Results in Unusual Event (← links)
- 05000362/LER-2009-001, Regarding Component Declared Inoperable After LCO Time Limit (← links)
- 05000362/LER-2008-002, For San Onofre, Unit 3, Regarding Loose Fuse Results in Inoperable Auxiliary Feedwater Pump and TS Violation (← links)
- 05000362/LER-2008-003, For San Onofre, Regarding Missed TS Completion Time Results in TS Violation (← links)
- 05000362/LER-2008-001, TS Required Shutdown Due to EDG Repair Beyond Allowed Outage Time (← links)
- 05000362/LER-2007-001, Regarding Failure to Declare Emergency Diesel Generator Inoperable and Enter TS Action (← links)
- 05000362/LER-2006-006, Regarding One Train of Component Cooling Water Considered Inoperable for Longer than Allowed by Technical Specification 3.7.7 Due to Gas Entrainment (← links)
- 05000362/LER-2006-005, Re Dilution Calculation Error Results in Exceeding 20 Percent Power Prior to Completion of Required Surveillances (← links)
- 05000362/LER-2006-004, Regarding Inoperable Breaker Causes Train a Charging Pump to Be Inoperable for Longer than Allowed by Technical Specifications (← links)
- 05000362/LER-2006-002, Regarding Unit 3 Shutdown to Inspect Safety Injection Tank Spiral Wound Gaskets (← links)
- 05000362/LER-2006-003, For Reactor Coolant System Pressure Boundary Leak Caused by Incomplete Compression of a Mechanical Nozzle Seal Assembly Grafoil Seal (← links)
- 05000362/LER-2006-001, Regarding Emergency Subgroup Relay Test Causes Inadvertent Fill of Steam Generator (← links)
- 05000362/LER-2005-002, Emergency Containment Cooling Inoperable for Longer than Allowed by Technical Specifications (← links)
- 05000362/LER-2005-001, Regarding Emergency Diesel Generator (EDG) 3G003 Declared Inoperable Due to Loose Wiring Connection on Emergency Supply Fan (← links)
- 05000362/LER-2004-003, (SONGS) Unit 3 Invalid Actuation of Emergency Diesel Generator Due to an Invalid Signal (← links)
- 05000362/LER-2004-002, Regarding Incomplete Postmaintenance Calibration of Logarithmic Power Level-High Channel a Results in Technical Specification Violations (← links)
- 05000362/LER-2004-001, Manual Reactor Trip Due to Sea Grass at Intake Structure (← links)
- 05000362/LER-2003-001, Regarding Breaker Failure Coincident with Planned Maintenance Results in Both Trains of Emergency Core Cooling Systems and Containment Spray Being Inoperable (← links)
- 05000362/LER-2002-004, For San Onofre, Unit 3 Regarding Emergency Room Cooler for Component Cooling Water Pump Conservatively Considered Inoperable for Longer than Allowed by TS (← links)
- 05000362/LER-2002-003, From San Onofre Unit 3, Regarding Main Feedwater Pump Turbine Trip Results in Manual Actuation of Auxiliary Feedwater Systems (← links)
- 05000362/LER-2002-001, /27/2002, Loss of Offsite Power with Consequential Rps/Esf Actuations Due to Maintenance Error (← links)
- 05000362/LER-2001-002, Starting the Movement of Irradiated Fuel with One Train of Pacu Inoperable Causes TS Violation (← links)
- ML093210132 (redirect page) (← links)
- 05000361/LER-2009-005, Re Wiring Error in Diesel Generator Circuit Results in Loss of Fire Isolation Capability (← links)
- 05000361/LER-2009-004, Regarding Both Trains of Spent Fuel Pool Cooling Inoperable Results in a Loss of Safety Function (← links)
- 05000362/LER-2009-002, Regarding Emergency Diesel Start Failure Results in Unusual Event (← links)
- 05000361/LER-2009-003, Pressurizer Auxiliary Spray Failed Inservice Test (← links)
- 05000361/LER-2009-001, Unit Trip on Low Vacuum Caused by Intake Circulating Water Gate (← links)
- 05000361/LER-2009-002, Re Inoperable 1E Breaker Causes Containment Chiller to Be Inoperable (← links)