Pages that link to "ML20203L488"
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The following pages link to ML20203L488:
Displayed 50 items.
- 05000275/LER-1985-040, :on 860411,during Surveillance Test Review, Discovered That on 850521,interval for Performing Test Start of Diesel Generator 1-1 Exceeded.Caused by Operator Misinterpretation.Test Completed on 850603 (← links)
- 05000275/LER-1984-038, :on 860415,during Surveillance Test Review, Discovered That on 841015,interval for Performing Valve Stroke Timing Test of 10% Atmospheric Dump Valves Exceeded. Caused by Procedural Deficiency.Test Completed on 850106 (← links)
- 05000275/LER-1984-037, :on 860506,engineers Discovered That 840305 Surveillance Interval for Containment Fan Cooler Unit Exceeded.Caused by Personnel Error.Personnel Counseled (← links)
- 05000323/LER-1986-008, :on 860311,automatic Reactor & Subsequent Turbine Trips Occurred.Caused by Nuclear Instrumentation Sys (Nis) Trip Signal Exceeding Trip Setpoint.Nis Reset in Accordance W/Westinghouse Recommendation (← links)
- 05000275/LER-1988-026, :on 880901,turbine Trip & Reactor Trip Occurred During Restart.Turbine Trip Initiated by anti-motoring Relay PS-30.Caused by Root Isolation Valve in Closed Position.Low Side Root Valve for PS-30 Opened (← links)
- 05000275/LER-1985-039, :on 851010,allowable Time Limit for Performance of Surveillance Required by Tech Spec Exceeded for Redundant Heater 1-EH-27A Located on Control Room Ventilation Sys Train.Caused by Personnel Error (← links)
- 05000275/LER-1986-001, :on 841025,860103 & 0208,review of Surveillance Test Records Identified Missing Surveillances on RCS Temp & Containment Pressure Instrumentation Channels.Caused by Personnel Error (← links)
- 05000275/LER-1986-002-01, :on 860201,operators Failed to Perform Surveillance Test Procedure R-2B, Operator Heat Balance, within Specified Time Limits.Caused by Personnel Error. Procedures Revised (← links)
- 05000323/LER-1986-003, :on 860131 & 0209,spreading Room Carbon Dioxide Sys Taken Out of Svc for Maint Activities W/O Posting Continuous Fire Watch.Caused by Personnel Error.Special Training Conducted for Const Personnel (← links)
- 05000275/LER-1985-035, :on 851110,steam Feedwater Flow Mismatch Channels for Steam Generator 1-2 Found Inoperable.Caused by Personnel Error.Personnel Counseled & Procedure Revised (← links)
- 05000323/LER-1985-025-01, :on 860113,discovered Sample Line Vent Valves to Containment Hydrogen Analyzer Cell 82 Open & Lines Uncapped.Valves Verified Closed & Lines Capped on 851004. Cause Undetermined.Lines Capped (← links)
- 05000275/LER-1984-036, :on 840303,discovered That Initial Entry to Mode 3 Made W/O Boron Injection Tank Recirculation Check Valve 8912 Meeting Stroke Testing Requirements.Caused by Personnel Error.Testing Performed (← links)
- 05000275/LER-1984-016, :on 840521,const Electrician Inadvertently Opened Power Supply Breaker for Several Plant Radiation Monitors,Initiating Actuation of Containment Ventilation Isolation.Breaker Closed (← links)
- 05000323/LER-1985-014-01, :on 851005,unit Entered Mode 2 (Hot Shutdown) W/Steam Generator Main Feedwater Isolation Valve FCV-439 Inoperable.Caused by Incorrect Wiring Terminations in Control Sys.Maint Bulletin Issued (← links)
- 05000323/LER-1985-011-01, :on 851025,auxiliary Feedwater Steam Supply Line Snubber Inoperability Not Determined Before Exceeding Limiting Condition for Operation.Caused by Miscommunication Between Technician & Engineer.Snubber Replaced (← links)
- 05000323/LER-1986-004, :on 860206,inadvertent ESF Actuation of Fuel Handling Bldg Ventilation Sys Occurred.Caused by Improperly Secured Radiation Monitor Connector.Socket Connectors W/ Locking Devices Installed (← links)
- 05000275/LER-1986-003-01, :on 860107 Allowed Outage Time of Tech Spec 3.3.3.6,Action A,Exceeded.Casued by Personnel Error.On 851231 Valve Position Failed Low.Tech Specs Reviewed (← links)
- 05000323/LER-1986-010, :on 860314,automatic Isolation of Containment Ventilation Sys Occurred.Caused by Momentary Alarm Signal from Gaseous Radiation Monitors.Event Being Studied by Noise Reduction Task Force (← links)
- 05000323/LER-1986-009, :on 860303,surveillance Interval for Iodine & Particulate Sample Exceeded Tech Spec Time Limit.Caused by Personnel Error.Sample Media Changed & All Personnel Involved in Event Counseled (← links)
- 05000323/LER-1986-002, :on 860117,RHR Valve 8702 Closed & RHR Pump 2-1 Secured in Response to Ensuing loss-of-flow Alarm.Caused by Unlicensed Operator Error.Valve Reopened.Pump Restarted, Observed for Seal Damage & Declared Operable (← links)
- 05000275/LER-1985-038, :on 860116,during Surveillance Test Procedure P-6B,auxiliary Feedwater Pump 1-1 Woodward Governor Speed Adjustment Knob Found Mispositioned.Cause Unknown,But 72 H Limit May Have Been Exceeded on 851218 (← links)
- 05000323/LER-1986-005-01, :on 860222,main Turbine & Subsequent Reactor Trip Occurred Due to Generator Loss of Electrical Field Relay Actuation.Caused by Incorrect Polarity.Min Excitation Leads Reversed & Voltage Regulator Passed Test (← links)
- 05000323/LER-1985-024-01, :on 851225,automatic Reactor & Turbine Trips Occurred During Full Load Rejection Test.Caused by Slow Response of Steam Dump Control Sys.Sys Modified to Improve Steam Dump Valve Response Time (← links)
- 05000323/LER-1985-023-01, :on 850725,unit Entered Hot Shutdown W/O Necessary Surveillance on Some ECCS & Associated Containment Spray Motor Operated Valves.Caused by Personnel Error. Procedure STP V-7B Satisfactorily Performed (← links)
- 05000323/LER-1985-022-01, :on 851221,automatic Reactor & Turbine Trips Occurred.Caused by Loose Wiring to Feedwater Regulating Valve Solenoid & Personnel Error Causing Momentary Opening of Connection.Connection Properly Terminated (← links)
- 05000275/LER-1985-036, :on 851119,discovered That Safety Injection & Charging Pump Suction Crosstie Valve Surveillances Not Performed Since 850814.Caused by Personnel Error.Test Performed (← links)
- 05000275/LER-1985-029, :on 850821,containment Sump Level wide-range Channel Check Not Performed.Caused by Failure to Incorporate Requirement Into Surveillance Test Procedure (STP) I-1D. Requirement Incorporated.Test Performed (← links)
- 05000323/LER-1985-020-01, :on 851116,discovered That Plant Vent Particulate & Iodine Monitor RE-24 Sample Collection Pump Deenergized.Caused by Switching Off of RE-24 Power Switch. Protective Cover Installed Over Switch (← links)
- 05000275/LER-1985-018-01, :on 850505,test Leads Mistakenly Left Connected to Reactor Coolant Outlet Temp Monitor Circuit & Did Not Meet Electrical Separation Criteria.Caused by Technician Oversight.Personnel Received Addl Training (← links)
- 05000323/LER-1985-013, :on 851106,during Startup Procedure 43.7, Reactor Tripped on lo-lo Steam Generator Level.Caused by Turbine Interceptor Valves Opening Too slowly.Electro- Hydraulic Control Sys Modified (← links)
- 05000275/LER-1985-032, :on 850912,QA Insp Disclosed Absence of Nuts on Embedded Plate for Main Feedwater Piping Snubber Support. Caused by Const & Engineering Misunderstandings of Design Details.Nuts Installed & Plate Stiffened (← links)
- 05000275/LER-1985-033, :on 851025,automatic Reactor & Turbine Trips Occurred Due to Reactor Coolant Pump Breaker Position Relay Opening Momentarily.Caused by Shorted Capacitator in Comparator Module (← links)
- 05000323/LER-1985-007-01, :on 850829,reactor Trip on Low Steam Generator Level Coincident W/Steam Flow/Feed Flow Mismatch Occurred. Caused by Personnel Error.Operator Counseled on Significance of Understanding Abnormal Plant Conditions (← links)
- 05000323/LER-1985-010-01, :on 851024,turbine & Reactor Tripped Due to High Water Level in Steam Generator.Caused by Inadequate Procedures.Procedures for Operation of Condensate Booster Pumps During Unusual Plant Conditions Revised (← links)
- 05000323/LER-1986-001-01, :on 860102,automatic Reactor & Turbine Trip Occurred Due to lo-lo Steam Generator Water Level.Caused by Main Feedwater Pump Trip During Full Load Rejection Startup Test.Pump Control Oil Sys Flushed (← links)
- 05000323/LER-1985-003-02, :on 850809,automatic Isolation of Containment Ventilation Sys Occurred.Caused by Switching of Radiation Monitor Mode Switch to Reset & Back During Troubleshooting. Events Under Study (← links)
- 05000323/LER-1985-009-01, :on 851022,generator & Reactor Trip Occurred. Caused by Technician Inadvertently Actuating Current Test Block of Main Generator Differential Relay.Technician Counseled & Instructions Installed on Panel (← links)
- 05000275/LER-1985-037, :on 851030 & 1101,missed Surveillances of Containment Spray Pumps Occurred.Caused by Engineer Failing to Increase Surveillance Test Frequency When Pumps Reached Alert Range (← links)
- 05000323/LER-1985-021-01, :on 851204,spurious Safety Injection Occurred. Caused by Safety Injection Signal Received on Train a of Solid State Protection Sys While Preparing to Investigate 851202 Event.No Corrective Action Required (← links)
- 05000275/LER-1985-034, :on 851017,discovered That Surveillance of Plant Vent Noble Gas Activity Monitors Not Conducted.On 850629 Containment Purge Initiated W/Inoperable Radiation Monitor.Caused by Computer Data Entry Error (← links)
- 05000323/LER-1985-016-01, :on 851126 & 1201,automatic Reactor Trips Occurred During 50% Load Rejection Startup Testing.Caused by Steam Dump Control Sys & Feedwater Control Sys Settings Inadequately Adjusted,Respectively (← links)
- 05000323/LER-1985-004-02, :on 850816,containment Purge Supply & Exhaust Valves Not Maintained Closed When Solid State Protection Sys Train a Removed from Svc.Caused by Technician & Operator Errors.Procedure Revised (← links)
- 05000275/LER-1985-031, :on 850815,incorrect Value Used to Align Nuclear Instrumentation Sys Power Range Positive & Negative Rate Trip Bistables & Range Rate Trip Setpoints Set Incorrectly.Caused by Personnel Error (← links)
- 05000323/LER-1985-005-02, :on 850815,automatic Isolation of Containment Ventilation Sys Occurred.Caused by Spurious Spike in Containment Gaseous Radiation Monitor RM11.Noise Reduction Task Force Will Investigate Spurious Signals (← links)
- 05000275/LER-1985-028, :on 850814,two Second Level Undervoltage Relays on 4-kV Bus F Found Set Below Tech Spec Limits.Caused by Personnel Error.Procedure MP E-50.33 Revised to Clarify Desired as-left Setpoint (← links)
- 05000275/LER-1985-026, :on 850710 & 21,nonlicensed Operators Performing Surveillance Test Procedure M-9A-3 Failed to Perform Surveillance Check.Caused by Operator Failing to Understand Requirement.Procedure Revised (← links)
- 05000275/LER-1985-024, :on 850712,temporary Change to safety-related Procedures Not Reviewed by Plant Staff Review Committee & Approved within 14 Day Tech Spec Time Limit.Caused by Change in Processing Procedure (← links)
- 05000275/LER-1985-025, :on 850731,automatic Isolation of Containment Ventilation Sys Occurred.Caused by Spurious Spike in Gaseous Radiation Monitor.Signal Cable Connectors Replaced (← links)
- 05000275/LER-1985-022, :on 850501,four Accumulators Became Inoperable W/Unit in Mode 3.Caused by Conflict in Procedures & Misunderstanding Re Requirements for Use of Seals.Procedures Revised & Breaker Panels Labeled (← links)
- 05000275/LER-1985-023, :on 850702,automatic Isolation of Containment Ventilation Sys Occurred.Caused by Spurious Spike in Gaseous Radiation Monitor RE11.Monitor Alarm Set & Air Monitor Isolation Valves Reopened (← links)