Pages that link to "05000305/LER-2005-001, Re Reactor Thermal Power Eight-Hour Average Limit Exceeded"

The following pages link to 05000305/LER-2005-001, Re Reactor Thermal Power Eight-Hour Average Limit Exceeded:

Displayed 24 items.

• 05000305/LER-2005-001 (redirect page) ‎ (← links)
  • 05000287/LER-2005-002 ‎ (← links)
  • 05000265/LER-2005-002 ‎ (← links)
  • 05000305/LER-2001-003 ‎ (← links)
  • 05000305/LER-2001-001 ‎ (← links)
  • 05000263/LER-2005-004 ‎ (← links)
  • IR 05000305/2005012 ‎ (← links)
  • 05000305/LER-1982-015, Forwards LER 82-015/03L-0 ‎ (← links)
  • 05000305/LER-1982-014, Forwards LER 82-014/03L-0 ‎ (← links)
  • 05000305/LER-1982-006, Forwards LER 82-006/03L-0 ‎ (← links)
  • 05000305/LER-1982-011, Forwards LER 82-011/03L-0 ‎ (← links)
  • 05000305/LER-1982-028, Forwards LER 82-028/03L-0 & Updated 81-036/03X-1 ‎ (← links)
  • 05000305/LER-1982-026, Forwards LER 82-026/03L-0 ‎ (← links)
  • 05000305/LER-1982-018, Forwards LER 82-018/03L-0 ‎ (← links)
  • 05000305/LER-1981-037, Forwards LER 81-037/03L-0 ‎ (← links)
  • 05000305/LER-1982-023, Forwards LER 82-023/03L-0 ‎ (← links)
  • 05000305/LER-1982-019, Forwards LER 82-019/03L-0 ‎ (← links)
  • 05000305/LER-1982-020, Forwards LER 82-020/03L-0 ‎ (← links)
  • 05000305/LER-1983-004, Forwards LER 83-004/03L-0 ‎ (← links)
  • 05000305/LER-1983-002, Forwards LER 83-002/03L-0 ‎ (← links)
  • 05000305/LER-1982-036, Forwards LER 82-036/03L-0 ‎ (← links)
  • 05000305/LER-1982-034, Forwards LER 82-034/03L-0 ‎ (← links)
  • 05000305/LER-1983-011, Forwards LER 83-011/03L-0 ‎ (← links)
  • 05000305/LER-1982-033, Forwards LER 82-033/03L-0 ‎ (← links)
  • 05000305/LER-1982-032, Forwards LER 82-032/03L-0 ‎ (← links)
  • 05000305/LER-1983-005, Forwards Updated LER 83-005/03X-1 ‎ (← links)
  • 05000305/LER-1983-007, Forwards LER 83-007/01T-0.Detailed Event Analysis Submitted ‎ (← links)
  • 05000305/LER-1983-008, Forwards LER 83-008/03L-0 ‎ (← links)
  • 05000305/LER-1983-006, Forwards LER 83-006/03L-0 ‎ (← links)
  • 05000305/LER-1983-003, Forwards LER 83-003/03L-0 ‎ (← links)
  • 05000305/LER-1982-030, Forwards Updated LER 82-030/01X-1 ‎ (← links)
  • 05000305/LER-1981-006, Forwards LER 81-006/03L-0 ‎ (← links)
  • 05000305/LER-1982-021, Forwards Updated LER 82-021/01X-1 & LER 82-027/03L-0 ‎ (← links)
  • 05000305/LER-1982-002, Forwards Updated LER 82-002/03X-1 & LERs 82-024/03L-0 & 82-025/03L-0 ‎ (← links)
  • 05000305/LER-1982-009, Forwards Updated LER 82-009/03X-1 ‎ (← links)
  • 05000305/LER-1982-010, Forwards Updated LER 82-010/03X-1 & LERs 82-012/03L-0 & 82-013/01T-0 ‎ (← links)
  • 05000305/LER-1989-009, :on 890401,during Repositioning of Ventilation Dampers,Jumper Inadvertently Detached from Terminal Block Contact,Causing Damper Actuation.Caused by Procedural Inadequacies.Weidmuller Blocks Installed ‎ (← links)
  • 05000305/LER-1989-006, :on 890315,audit Identified Failure to Implement Tech Spec Re Testing of Fan Coil Emergency Discharge Dampers & Backfit Dampers.Caused by Procedural Inadequacy.Procedure Updated ‎ (← links)
  • 05000305/LER-1989-005, :on 890310,insp of Diesel Generator Start Up Air Sys Finds Deficiencies That Could Render Both Diesel Generators Inoperable Due to Inadequate Design.Cause Unknown.Generic Implications Will Be Examined ‎ (← links)
  • 05000305/LER-1998-003, :on 980203,RCS Low Flow Trip Logic Were Identified as Not Been Tested IAW Tss.Caused by Personnel Error.Testing Was Conducted IAW Requirements of Section 4 of TS ‎ (← links)
  • 05000305/LER-1986-012, :on 860926,auxiliary Bldg Vent Stack Radiation Monitor Indications Elevated Due to Radioactive Ar-41 Gas & on 861006,zone Special Ventilation Sys Automatically Started on High Radiation Signal Due to Low Setpoints ‎ (← links)
  • 05000305/LER-1986-013, :on 861030,gate to Waste Metering Tank Room, Posted as High Contamination & Radiation Hazard Area, Discovered Unlocked & Open.Caused by Personnel Error.Survey of Area Performed & Procedures Revised ‎ (← links)
  • 05000305/LER-1986-010, :on 860801,ESF Actuation Occurred Due to Electrical Jumper Shorting to Ground.Caused by Low Profile Design of Connecting Screws on Terminal Strip.Banana Jacks Added Where Jumpers Used ‎ (← links)
  • 05000305/LER-1986-008, :on 860513,reactor/turbine Trip Occurred During Performance of Surveillance Procedure on power-range Nuclear Instrumentation.Caused by Personnel Error.Labeling of Instrumentation Upgraded ‎ (← links)
  • 05000305/LER-1986-011, :on 860811,during Performance of Monthly Fire Pump Flow Test,Both Fire Pumps Simultaneously Out of Svc for Approx 10 S.Caused by Personnel Failure to Follow Procedure.Personnel Counseled ‎ (← links)
  • 05000305/LER-1986-015, :on 861229,svc Water Inlet Valve for Radiation Monitor R-16 Found Closed.Caused by Personnel Error.Sight Flow Meter Cleaned & Operating Procedure Used to Perform Flushing Process Reviewed ‎ (← links)
  • 05000305/LER-1986-014, :on 861202,during Full Power,Boric Acid Transfer Pumps Inoperable.Caused by Burned Off Section of Heat Tape Around Pump Casing.Insulation on Pump Replaced & Extended to Cover Mechanical Seal & Casing ‎ (← links)
  • 05000305/LER-1986-009, :on 860513,local Leak Rate Test Procedure for Station Air to Containment Penetration 19 Found Inadequate to Separately Quantify Inboard & Outboard Isolation Valve Type-C Leakages.Caused by Drawing Error ‎ (← links)
  • 05000305/LER-1986-005, :on 860417,reactor Trip Occurred During Performance of Work Request on Intermediate-Range Nuclear Channel N35.Caused by Premature Removal of Control Power Fuse ‎ (← links)
  • 05000305/LER-1987-001, :on 870223 & 24,series of High Radiation Alarms Received in Control Room.Caused by Primary to Secondary Leak in Steam Generator 1A.Results of Eddy Current Testing Will Be Submitted ‎ (← links)
  • 05000305/LER-1987-002, :on 870224,reactor Tripped When Source Range Nuclear Flux Detectors 1 & 2 Erroneously Reached Nominal Reactor Trip Setpoint of 1.0E05 Counts/S.Caused by Seepage of Borated Refueling Water Into Instrument ‎ (← links)
  • 05000305/LER-1986-003, :on 860326,potential Problem Found w/long-term Reliability of Both Backup Emergency Ac Diesel Generators. Caused by Numerous Fast Starts of Diesel Generator W/O Full Main Lube Oil Pressure ‎ (← links)
  • 05000305/LER-1986-006, :on 860420,turbine Trip & Reactor Trip Occurred.Caused by Main Feedwater Control Valve Sticking. Valve Inspected,Adjusted & Cycled to Verify Operability Prior to Restart ‎ (← links)
  • 05000305/LER-1986-004, :on 860401,nonspring-assisted Fire Dampers Mechanically Bound in Intermediate Position.Caused by Not Testing Dampers.Testing of Dampers Continuing & Damper Design Changes Initiated ‎ (← links)
  • 05000305/LER-1986-007, :on 860424,reactor Tripped Due to Low Steam Generator Level Coincident W/Steam & Feedwater Flow Mismatch.Caused by Defective Main Feedwater Control Valve. Valve Stroked & Cycled Until Operable ‎ (← links)
  • 05000305/LER-1978-028, Forwards LER 78-028/03L-0& 78-029/03L-0 on 780809 ‎ (← links)
  • 05000305/LER-1986-001, :on 860211,review of Retest Requirements Re Solenoid Valve Replacement Revealed Valve Timing Test Not Performed During 1985.Caused by Erroneous Deletion from Procedures.Test Performed ‎ (← links)
  • 05000305/LER-1985-022, :on 851203,discovered That Surveillance Procedure Sp 48-046,conducted on 851127,performed Outside of Required Time Interval.Caused by Calibr of Nuclear Instrumentation Due to 851113 Trip ‎ (← links)
  • 05000305/LER-1986-002, :on 860318,local Leak Rate Test Results Exceeded Tech Spec Limit.Caused by Degraded Component Performance at Three Penetrations.Valves Lapped,Repacked & Satisfactorily Retested ‎ (← links)
  • 05000305/LER-1985-020, :on 851113,failure of Train a Main Feedwater Control Valve Caused lo-lo Water Level in Steam Generator 1A & Reactor Trip.Caused by Two of Four Cap Screws Holding Valve Actuator to Yoke Shearing ‎ (← links)
  • 05000305/LER-1985-019, :on 851107,at 100% Power,Test of Undervoltage Trip Attachment Conducted for Each Reactor Trip Breaker to Verify Existence of 20 Oz of Force Margin,Per IE Bulletin 85-002.Two Breakers Failed ‎ (← links)
  • 05000305/LER-1985-023, :on 851212,loss of Power to Instrument Bus I Occurred.Caused by Failure of Constant Voltage Transformer. Constant Voltage Transformer Replaced & Instrument Bus Returned to Normal Power Supply ‎ (← links)
  • 05000305/LER-1985-021, :on 851114,high Flux Shutdown Bistable Trip Value Recorded in Place of High Flux Level Trip Setpoint on Both Source Range Channels.Caused by Personnel Error. Individuals Counseled on Procedure Performance ‎ (← links)
  • 05000305/LER-1985-018, :on 850820,discovered That Fire Hose Insp Required by Tech Spec 4.15.2 Performed Outside Required 18-month (Plus or Minus 25%) Time Interval.Caused by Mgt Oversight When Procedure Modified ‎ (← links)
  • 05000305/LER-1985-017, :on 850808,reactor Tripped Manually to Isolate Ruptured Excess Steam Vent Line.Caused by Carbon Steel Piping Erosion.Ruptured Vent Lines Replaced.Program Implemented to Examine Steam Line Piping ‎ (← links)
  • 05000305/LER-1996-007, :on 961023,identified Design Deficiency in Containment Isolation Function.Caused by Oversight During Plant Design.Implemented Administrative Controls to Preclude Subject Condition Prior to Plant start-up ‎ (← links)
  • 05000305/LER-1985-016, :on 850725,control Operator Observed That Position Indication for Containment Isolation Valves & Steam Exclusion Dampers Changed Position.Caused by Power Interruption & Loss of Sys Redundancy ‎ (← links)
  • 05000305/LER-1985-014, :on 850615,concrete Block Preventing Access to Spent Resin Storage Tank Room Found Removed.Caused by Design Change & Maint Work on Tank.Requirements for Securing High Radiation Areas Discussed ‎ (← links)
  • 05000305/LER-1985-011, :on 850407,auxiliary Bldg Special Ventilation Sys Actuated from Steam Exclusion Signal.Caused by Steam Issuing Through Blown Rupture Disk on Boric Acid Evaporator Condenser.Ventilation Sys Reset ‎ (← links)
  • 05000305/LER-1985-013, :on 850404 & 0505,heat Tracing Circuit on Suction Line to Containment Hydrogen Analyzer 1A Discovered Inoperable.Caused by Failed Amphenol Connector.Spare Parts Ordered & Failed Connector Bypassed ‎ (← links)
  • 05000305/LER-1985-012, :on 850410,reactor Tripped.Caused by Differences in Ground Potential Between Ni & Test Equipment. Purchase of New Portable Picoammeter Being Considered ‎ (← links)
  • 05000305/LER-1985-010, :on 850405,reactor Trip Occurred Due to Steam Flow Greater than Feed Flow Signal Coincident W/Lo Steam Generator Level Signal.Caused by One Feed Flow & One Steam Low Transmitter Out of Calibr ‎ (← links)
  • 05000305/LER-1984-018, :on 840928,investigation of Fan Coil Units W/Less than Design Air Flow Revealed Svc Water Side of Cooling Coils Partially Plugged W/Silt.Caused by Equipment Deficiencies.Fan Coil Units Cleaned ‎ (← links)
  • 05000305/LER-1984-021, :on 841218,boric Acid Tank Selector Switch Misaligned.Caused by Personnel Error.Switch Returned to Proper Position.Meeting Conducted on Job Attentiveness ‎ (← links)
  • 05000305/LER-1984-020, :on 841216,auxiliary Operator Discovered Exhaust Fan 1B of Auxiliary Bldg Special Ventilation Sys Running.Caused by Burnt Out Coil on Solenoid Valve Controlling Exhaust Damper.Valve Replaced ‎ (← links)
  • 05000305/LER-1985-002, :on 850125,seismic Analysis for nonsafety- Related Piping Section of Containment Integrated Leak Rate Test Penetration Could Not Be Located.Design Change Will Be Completed During 1985 Refueling Shutdown ‎ (← links)
  • 05000305/LER-1984-013, :on 840702,auxiliary Bldg Special Ventilation Sys Train B Ran for Unknown Reason.Cause Later Identified as Burned Out Coil on Johnson Solenoid Valve.Valves Will Be Replaced ‎ (← links)
  • 05000305/LER-1984-017, :on 841002,both Fire Pumps W/O Power for Approx 2 Minutes During Full Power Operation.Caused by Equipment Operator Error During Annual Fire Pump Flow Test.Operator Counseled ‎ (← links)
  • 05000305/LER-1985-001, :on 850122,inadvertent Actuation of Internal Containment Spray Sys 1B Occurred,Discharging Approx 2,500 Gallons Borated Water Into Containment Bldg.Operator Secured Sys & Reset Containment Spray ‎ (← links)
  • 05000305/LER-1984-009, :on 840507,turbine & Reactor Trip Received While Performing Procedure RT-TB-54D, Turbine Trip Mechanism Test. Caused by Incorrect Wiring of Pressure Switch PS16158.Switch Rewired ‎ (← links)
  • 05000305/LER-1984-016, :on 840914,train B of Auxiliary Bldg Special Ventilation Sys Inadvertently Started During Performance of Work Request on Radiation Monitor 14.Caused by Personnel Error.Importance of Communication Stressed ‎ (← links)
  • 05000305/LER-1984-019, :on 841114,train B of Auxiliary Bldg Special Ventilation Sys,Control Room post-accident Recirculation Fan 1B & Train B Safeguards Fan Coil Units Inadvertently Actuated.Caused by Miswired Relay ‎ (← links)
  • 05000305/LER-1985-008, :on 850225,alarm 47001-34 for Condenser Low Vacuum Turbine Trip,Cleared & Alarmed Again & Both Diesel Generators Started.Caused by Maint to Turbine Trip Mechanism.Start Signal Will Be Removed ‎ (← links)
  • 05000305/LER-1985-007, :on 850225,w/red Pressurizer Channel Tripped & White Channel Calibr,Safety Injection Signal Occurred. Caused by Technician Requesting Wrong Channel Be Tripped. Surveillance Procedure Revised ‎ (← links)
  • 05000305/LER-1985-005, :on 850211,exhaust Fan 1A of Auxiliary Bldg Special Ventilation Sys Found Running.Caused by Burnt Out Coil in Solenoid Valve Controlling Air to Zone SV Exhaust Filter 1A Inlet Damper.Valve Replaced ‎ (← links)
  • 05000305/LER-1985-006, :on 850220,steam Generator Tube Found Incorrectly Plugged.Possibly Caused by Mismarked Tube Sheet. Template Marked to Identify Tubes to Be Plugged ‎ (← links)
  • 05000305/LER-1985-004, :on 850210,control Room Operator Noticed Reactor Coolant Pump 1B Running.Caused by Grounded Condition in Actuation Circuitry Due to Water Accumulation in Pressure Switch.Hardware Mod Being Evaluated ‎ (← links)
  • 05000305/LER-1985-003, :on 850208,reactor Tripped.Caused by Decrease in Steam Generator Vol to Low Level Alarm Setpoints. Corrective Action Being Investigated ‎ (← links)
  • 05000305/LER-1984-015, :on 840728,refueling Water Storage Tank Level Discovered 1-1/2% Below Min,Contrary to Tech Specs.Caused by Valve Misalignment.Tank Filled & Plant Returned to Full Power.Incident Discussed W/Operating Personnel ‎ (← links)
  • 05000305/LER-1984-014, :on 840703,loss of Power on Instrument Bus IV Resulted in Partial Loss of Instrumentation,Alarms & Level Control Problems on Steam Generators.Caused by Loose Connection of Ac Output Breaker 52 Connector ‎ (← links)
  • 05000305/LER-1984-012, :on 840628,both Trains of Auxiliary Bldg Special Vent Sys Inadvertently Started During Performance of I&C Procedure.Caused by Personnel Error.Both Trains Secured & Realigned for Normal Operation ‎ (← links)
  • 05000305/LER-1984-011, :on 840510 & 11,shield Bldg Recirculation Fan 1A Found Operating W/Associated Dampers Open.No Apparent Cause Evident.Auxiliary Contact on Fan Motor Starter Replaced ‎ (← links)
  • 05000305/LER-1984-010, :on 840507,during Power escalation,lo-lo Level Setpoint Reached in Steam Generator 1B,initiating Reactor Trip.Caused by Operator Attempting to Stabilize Level Oscillation.No Corrective Actions Necessary ‎ (← links)
  • 05000305/LER-1984-008, :on 840505,intermediate Range Hi Flux Reactor Trip Received on Channel N35.Caused by Faulty Detector. Engineering Study in Progress ‎ (← links)
  • 05000305/LER-1984-007, :on 840420,alarms Indicated That Two Diesel Generators Running.Caused by Electrician Installing Conduit to Turbine Equipment Terminal Box A.Personnel Cautioned ‎ (← links)
  • 05000305/LER-1983-033-03, /03L-0:on 831205,motor Operated Isolation Valve SI-2A in Boric Acid Suction Line to Safety Injection Pump Failed to Open During Monthly Surveillance Test.Caused by Broken Finger in Auxiliary Contact Block ‎ (← links)
  • 05000305/LER-1983-018-03, /03L-0:on 830915,bonnet Set Screws on Valve MS-100A Failed to Close.Caused by Loose Electrical Insulating Matl.Matl & Contact Cleaned ‎ (← links)
  • 05000305/LER-1983-019-03, /03L-0:on 830916,component Cooling Water Pump 1A Taken Out of Svc on 3 Separate Occasions to Perform Corrective Maint on Inboard Bearing Oil Seal Leak.Caused by Misalignment of Motor to Pump.Pump Realigned ‎ (← links)
  • 05000305/LER-1995-003, :on 950516,failed to Adequately Assess Consequences During Recovery from Switch Misposition Resulted in Turbine/Rt.Reminded Nco of Importance of Self Checking ‎ (← links)
  • 05000305/LER-1984-005, :on 840410,during Diesel Generator Sequence Loading Panel DR106 Slave Relay Monitor Test,Two Slave Relays Picked Up Inadvertently,Actuating Four Valves.Cause Unknown.No Further Action Planned ‎ (← links)
  • 05000305/LER-1984-004, :on 840409,contact Closure Actuated Train B Recirculation Fan.Caused by Removal of Sys Relay Face Plate Releasing Internal Springs of Upper Tier,Causing Contacts to Change to Closed Positions ‎ (← links)
  • 05000305/LER-1984-001, :on 840313,personnel Inadvertently Initiated Surveillance on Train a Shield Bldg Vent Sys Exhaust Fan While Train B Exhaust Fan Tagged Out for Surveillance.Caused by Personnel Error.Filter Housings Marked ‎ (← links)
  • 05000305/LER-1983-035-03, /03L-0:on 831210,RPI Drifted Downwards When Voltage Regulator Failed.Caused by Low Voltage Output Due to Tarnished Contact Point in Voltage Regulator.Voltage Adjust Pot Wiped & Voltage Readjusted ‎ (← links)
  • 05000305/LER-1983-034-03, /03L-0:on 831206,containment Fan Coil Unit 1D Removed from Svc to Repair Svc Water Leaks.Caused by Sand & Water Erosion of Return Bends in Svc Water Cooling Coils. Affected Bends Replaced ‎ (← links)
  • 05000305/LER-1983-030-03, /03L-0:on 831117,sampling Pump for Containment Gaseous & Particulate Radiation Monitor R-11 Failed to Operate.Caused by Bare Wires Shorting Out Paper Drive Fast Speed Motor.Fast & Slow Speed Motors Replaced ‎ (← links)
  • 05000305/LER-1983-031-03, /03L-0:on 831121,during Full Power Operation,Irpi Channel for Rod J-10 Removed from Svc for Maint.Caused by Remote Indicator Span Drifting High.Indicator Span Recalibr ‎ (← links)
  • 05000305/LER-1983-032-03, /03L-0:on 831201,containment Spray Pump Breaker 1B Failed to Close When Requested During Monthly Pump & Valve Surveillance Test.Cause Unknown.Pump Monitored ‎ (← links)
  • 05000305/LER-1983-029-03, /03L-0:on 831111,auxiliary Feedwater Pump 1A Placed in Pullout for Maint Work on Discharge Flow Control Valve Which Would Not Open Greater than 90%.Event Placed Plant in Degraded Mode.Vol Booster Recalibr ‎ (← links)
  • 05000305/LER-1983-027-03, Cooling Water HX 1A Removed from Svc to Repair Leak.Caused by Sand Erosion.Line Patch Welded & Tested.Hx Returned to Svc ‎ (← links)
  • 05000305/LER-1983-025-03, /03L-0:on 831025,during Full Power Operation,Svc Water Pump 1A2 Removed from Svc to Perform Maint on Lube Water Line Flow Indicator.Caused by Frozen Check Flapper on Indicator Due to Crud Buildup ‎ (← links)
  • 05000305/LER-1983-024-03, /03L-0:on 831020,during Full Power Operation, Technical Review of Maint Work Requests Disclosed That Svc Water Pump 1B2 Removed from Svc on 830914 for Corrective Maint.Limiting Condition Reportable ‎ (← links)
  • 05000305/LER-1983-028-03, /03L-0:on 831028,charging Pump 1B Removed from Svc & Isolated Due to Hairline Crack Discovered in Discharge Head.Caused by Matl Fatigue at Socket Weld Due to Vibration. Piping Cut Out.New Section Welded in Place ‎ (← links)
  • 05000305/LER-1983-026-03, /03L-0:on 831025,while Performing Monthly Pump & Valve Surveillance Test,Status Light on RHR Pump 1A Failed to Light When Pump Started.Caused by Failure of Stationary Auxiliary Switch to Fully Close ‎ (← links)
  • 05000305/LER-1983-022-03, /03L-0:on 831012,train B Isolation Valve SI-208 on Safety Injection Pump Recirculation Line Deenergized in Open Position.Caused by Routine Maint Work.Supervisor Made Aware of Tech Spec Violation ‎ (← links)
  • 05000305/LER-1983-023-03, /03L-0:on 831013,shield Bldg Vent Sys Failed to Switch to Recirculation Mode.Caused by Failed Static Pressure Controller & Leaking Hydraulic Actuator.Controller & Actuator Replaced ‎ (← links)
  • 05000305/LER-1983-021-03, /03L-0:on 831018,svc Water Pump 1A1 Taken Out of Svc to Perform Maint.Caused by Maint Work Request Due to Svc Water Strainer 1A1 Not Operating in Auto.Pump Tested Operable & Returned to Svc ‎ (← links)
  • 05000305/LER-1983-020-03, /03L-0:on 831002,345 Kv Transmission Line R-304 from N Appleton Tripped Due to Failed Dead End Insulator. Cause Undeterminable.Line Repaired ‎ (← links)
  • 05000305/LER-1983-038-03, /03L-0:on 831229,maint Procedure to Replace Relay in Reactor Protective Sys Rack 133 Caused Inadvertent Start of Auxiliary Feedwater Pump.Procedure Generated as Result of Work Request ‎ (← links)
  • 05000305/LER-1983-036-03, /03L-0:on 831213,shield Bldg Ventilation Fan 1A Failed to Start During Monthly Surveillance Test.Caused by Procedural Error.Charcoal Filter Heat Detector Test Procedure Revised ‎ (← links)
  • 05000305/LER-1983-037-03, /03L-0:on 831213,during Full Power,Svc Water Pump 1A2 Taken Out of Svc.Caused by Packing Leak on Svc Water Strainer.Strainer Repacked & Pump Tested ‎ (← links)
  • 05000305/LER-1983-016-03, /03L-0:on 830713,filter Assembly Heater Failed to Energize.Caused by Blown Fuse in Control Circuit.Fuse Replaced ‎ (← links)
  • 05000305/LER-1983-005-03, During Surveillance Test on Diesel Generator 1B,svc Water Outlet Cv (SW-301B) from Diesel Oil Cooler Failed to Open Fully When Diesel Started. Caused by Erosion of Ball,Causing Sticking.Valve Replaced ‎ (← links)
  • 05000305/LER-1983-007-01, /01T-0:on 830308,after Completing Containment Vent During Full Power Operation,Rm 11/12 Sample Point Not Switched from Vent to Containment Position.Caused by Operator Error.Sample Point Switched to Containment ‎ (← links)
  • 05000305/LER-1983-008-03, /03L-0:on 830310,several Transmitters Found Out of Spec Which Would Cause Safety Injection Actuation Signal to Occur Later than Tech Spec Requirement.Caused by Transmitter Drift.Transmitter Recalibr ‎ (← links)
  • 05000305/LER-1983-006-03, /03L-0:on 830221,ICS Sys Train B Inadvertently Activated When Technician Depressed Test Lightbulb in Preparation for Performing Safeguards Logic Test.Action Resulted in Decreased Tank Level.Procedure Revised ‎ (← links)
  • 05000305/LER-1983-001-01, Electrician Performing Corrective Maint Pulled Fuse to de-energize SV33379 Leaving CV31394 Caustic Additive to Containment Spray Sys Isolation Valve in Open Position.Design Change Initiated ‎ (← links)
  • 05000305/LER-1983-013-03, /03L-0:on 830520,App J Type B & C Local Leak Rate Testing Identified Six Containment Isolation Valves W/ Unacceptable as-found Leakage.Cause Not Stated.Valves Repaired & Tested Satisfactorily ‎ (← links)
  • 05000305/LER-1983-012-03, /03L-0:on 830420,containment Vent Activity Monitor (R-21) Discovered Out of Svc.Caused by Inadequacy in Administrative & Procedural Controls.Refueling Operations Suspended Per Tech Specs.R-21 Returned to Svc ‎ (← links)
  • 05000305/LER-1983-003-03, /03L-0:on 830201,containment Air Sampling Line Feeding R11 & R12 Manually Isolated Due to Failure of Sample Isolation Valves to Cycle from Control Room.Caused by Solenoid Valve Stuck in Open Position ‎ (← links)
  • 05000305/LER-1983-004-03, /03L-0:on 830204,water Found Dripping Into Controller for Valve AFW-10 During Investigation of Battery Ground Fault Condition on Battery 1A.Caused by Wet Rags Stuffed in Newly Drilled Holes in Concrete Wall ‎ (← links)
  • 05000305/LER-1983-002-03, /03L-0:on 830126,during Full Power,Diesel Generator Removed from Svc to Repair Leaks in Cooling Sys Hx.Caused by Corrosion on Svc Water Side of Cooling Water Hx.Two Tubes Plugged & Four Tube Sheet Faces Repaired ‎ (← links)
  • 05000305/LER-1982-030-01, Instrumentation Lines Found Capped,Rendering Containment narrow- & wide-range Pressure Transmitters & Containment Vacuum Breakers Inoperable.Caused by Personnel Error.Caps Removed ‎ (← links)
  • 05000305/LER-1982-036-03, /03L-0:on 821228,during Startup Following Reactor Trip,Condensate Water Storage Tank Level Fell Below Tech Spec Limit.Caused by Normal Condensate Water Usage Coincident W/Demineralizer Regeneration ‎ (← links)
  • 05000305/LER-1982-034-03, /03L-0:on 821111,valve MS-100A,main Steam to Turbine Driven Auxiliary Feedwater Pump,Torqued Out When Closing.Caused by Torque Switch Sticking & Manual de-clutch Unit Out of Adjustment.Switch & Tripper Assembly Replaced ‎ (← links)
  • 05000305/LER-1983-011-03, /03L-0:on 830319,turbine-driven Auxiliary Feedwater Pump Exceeded Surveillance Procedural Inservice Insp Bearing Temp Action Level & Valves AFW10A & AFW10B Failed to Close Fully.Caused by Restrictive Procedures ‎ (← links)
  • 05000305/LER-1982-031-03, /03L-0:on 820913,train 1B of Shield Bldg Vent Failed to Switch to Recirculation Mode After Drawing Vacuum. Recirculation Damper Failed to Open Due to Broken Hydraulic Pump on electro-hydraulic Damper Actuator.Operator Replac ‎ (← links)
  • 05000305/LER-1982-029-01, /01X-1:on 820927,discovered That Monthly Testing Requirements Exceeded for Containment Radiation Monitors R-11 & R-12.Caused by Postponement of Test Due to Backup Radiation Monitor Being Out of Svc & Personnel Oversight ‎ (← links)
  • 05000305/LER-1982-033-03, /03L-0:on 821020,during Surveillance Testing, Containment Fan Coil Unit Svc Water Outlet Valve SW-903B Would Not Open Electrically.Gear Limit Switch Adjusted ‎ (← links)
  • 05000305/LER-1982-032-03, /03L-0:on 821004,discovered That Outer Door of Personnel Airlock Exceeded Leak Rate Specs.Cause Not Stated. Shim Installed Under Outer Seal.Door Retested Satisfactorily ‎ (← links)
  • 05000305/LER-1981-036-03, Motor Drive Auxiliary Feedwater Lube Oil Pump Continued to Run When Pump 1A Stopped.Caused by Excessive Wear & Misalignment of Switch Linkage Mechanism.Worn Parts Replaced ‎ (← links)
  • 05000305/LER-1982-028-03, /03L-0:on 820825,damper on Train a Failed Open Causing Zone Special Ventilation Fan to Start Automatically. Caused by Bad Coil on Solenoid Controlling Exhaust Filter Inlet Damper.Coil Replaced ‎ (← links)
  • 05000305/LER-1983-001-03, /03L-0:on 830105,during Full Power Operation, Electrician Performing Maint Pulled Fuse to de-energize SV33379 Which Allowed Caustic Additive to Drain from Tank to Suction of Containment Spray Pumps ‎ (← links)
  • 05000305/LER-1982-027-03, /03L-0:on 820813,shield Bldg Vent Sys Train a Recirculation damper,SBV21A,failed to Open & Draw Vacuum within 2 Minutes.Caused by Failure of Static Pressure Controller.Controller Replaced ‎ (← links)
  • 05000305/LER-1982-021-01, Measured Flows Found Less than Expected During Test on Containment Fan Coil Units & Associated Duct Work.Possibly Caused by Partially Closed Register in ring-duct Creating Restriction ‎ (← links)
  • 05000305/LER-1982-026-03, /03L-0:on 820801,during Full Power operation,1-B Boric Acid Transfer Pump Taken Out of Svc to Repair Seal Leak.Caused by Corroded Carbon Steel Plug in Seal.Plug Replaced W/Stainless Steel ‎ (← links)
  • 05000305/LER-1982-018-03, /03L-0:on 820602,1A RHR Pump Taken Out of Svc to Repair Excessive Shaft Seal Leakage.Caused by Scored Shaft & Excessive Clearances on Pump Wear Rings.New Shaft,Impeller, Shaft Sleeve & Mechanical Seal Installed ‎ (← links)
  • 05000305/LER-1982-025-03, /03L-0:on 820716,during Document Review,Waste Disposal Liquid Effluent Monitor Found Indicating Low.Caused by Weak Detection Tube on Monitor.Tube Replaced & Detector Recalibr ‎ (← links)
  • 05000305/LER-1982-024-03, /03L-0:on 820716,while at Full Power,Overpower Delta T Channel 3 Rod Stop Alarm Observed Cycling in & Out. Caused by Malfunction of Tavg Signal Conditioner Causing Channel to Drift.Spare Signal Box Installed & Calibr ‎ (← links)
  • 05000305/LER-1982-002-03, During Normal Operation, Pressurizer Level Transmitter LT427 Found Out of Spec.Caused by Instrument Drift.Transmitter Recalibr.Barton Transmitters Will Be Changed as Part of long-term Upgrade ‎ (← links)
  • 05000305/LER-1981-037-03, /03L-0:on 811109,intermittent Deviation in Steam Flow Indication Between Similar Channels Observed.Caused by Electronic Failure in Circuit Board in Transmitter. Transmitter Repaired & Returned to Svc ‎ (← links)
  • 05000305/LER-1982-023-03, /03L-0:on 820711,1A Diesel Generator Declared Out of Svc Due to Generator Startup Air Compressor Not Maintaining Proper Pressure.Caused by Suction Valve on Secondary Stage Having Cracked Leaf.Valves Replaced ‎ (← links)
  • 05000305/LER-1982-009-03, While in Hot Shutdown Prior to Scheduled Refueling Outage,Both Source Range Nuclear Instruments Determined Inoperable.Caused by Water Accumulation in Instrument Canisters ‎ (← links)
  • 05000305/LER-1982-022-01, /01T-0:on 820727,containment Fan Coil Unit 1A Failed to Restart During Test of Sys Heat Removal & Flow Capabilities.Caused by High Instantaneous Current Due to Fan Having to Overcome Back Pressure from Sys.Breaker Reset ‎ (← links)
  • 05000305/LER-1982-019-03, /03L-0:on 820628,1B Shield Bldg Ventilation Recirculation Fan Found Out of Svc.Caused by Shutdown Due to Maint Check Because of Repeated Trips of Circuit Breaker During Extended Fan Runs.Loose Contactor Block Replaced ‎ (← links)
  • 05000305/LER-1982-020-03, /03L-0:on 820702,while Performing Control Rod Exercise,Rod Deviation Monitor Failed to Operate.Caused by Rod Positions Not Updated on Process Computer Following Last Computer Failure.Procedure Updated ‎ (← links)
  • 05000305/LER-1982-016-03, /03L-0:on 820524,one Train of Auxiliary Bldg Special Ventilation Sys Filter Efficiency Fell Below 90%. Caused by Natural End of Life of Charcoal Absorber Cells. Fifteen of 27 Cells Replaced ‎ (← links)
  • 05000305/LER-1982-017-03, /03L-0:on 820525,error in Surveillance Testing Frequency discovered.Sr-60 Calibr Source Listed as Having 60-month Rather than 6-month Test Interval.No Cause Stated. Test Schedule Revision Submitted ‎ (← links)
  • 05000305/LER-1982-015-03, /03L-0:on 820518,while Trying to Borate RCS During Physic Testing,No Boric Acid Flow Obtained Through Blender Due to freeze-up in Boric Acid Tank to Blender Line at Valve CVC-401.Old Heat Tracing Tape Replaced ‎ (← links)
  • 05000305/LER-1982-014-03, /03L-0:on 820517,during Refueling Outage,Turbine Driven Auxiliary Feedwater Pump 1C Would Not Reach Required Speed.Caused by Exercise of Governor Valve to Eliminate Flat Spot in Controller.Governor Adjusted Per Mfg Manual ‎ (← links)
  • 05000305/LER-1982-013-01, /01T-0:on 820528,preliminary Analysis of Piping Load Evaluation Per NUREG-0737,Item II.D.1 Indicated Allowable Stresses Will Be Exceeded on Pressurizer Safety Loop Seal Piping When Safety Valve Opens.Analysis Underway ‎ (← links)
  • 05000305/LER-1982-012-03, /03L-0:on 820512,mainsteam Header 1A,isolation valve,MS-1A,exceeded Tech Spec Closure Time.Caused by Valve Being Closed & Dry Since Start of Cold Shutdown.Shaft Cleaned & Lubricated Externally ‎ (← links)
  • 05000305/LER-1982-010-03, During Refueling Outage, Surveillance Testing Indicated RCS Flow Transmitter Out of Calibr.Caused by Instrument Drift.Transmitter Recalibr ‎ (← links)
  • 05000305/LER-1982-006-03, /03L-0:on 820315,safety Injection Recirculation Line Valve SI-209 to Refueling Water Storage Tank Taken Out of Svc for Minor Corrective Maint.Valve Returned to Svc within Tech Spec Limits ‎ (← links)
  • 05000305/LER-1982-005-03, /03L-0:on 820309,1A2 Svc Water Pump Failed to Start on Demand During Quarterly Surveillance Testing of Svc Water Pumps.Caused by Failure of Circuit to Close Due to Failed Open Closing Coil.Coil Replaced ‎ (← links)
  • 05000305/LER-1982-004-03, /03L-0:on 820308,valve SI 200B Failed to Close During RHR Pump & Valve Testing.Cause Unknown.Valve Closed Manually.Multiple Cycling from Control Room Revealed No Further Difficulties ‎ (← links)
  • 05000305/LER-1982-011-03, /03L-0:on 820428,RCS Temp Transmitter Calibr Was in Excess of Tech Spec Limit.Caused by Instrument Drift. Transmitter Recalibr & Tested Satisfactorily ‎ (← links)
  • 05000305/LER-1982-007-01, /01T-0:on 820422,during Refueling Outage,Leak Repair Procedures on Valve PS-1A Revealed Significant Boric Acid Corrosion Wastage on body-to-bonnet Bolts.Caused by Bolt Degradation.Affected Bolts Replaced ‎ (← links)
  • 05000305/LER-1982-008-01, /01T-0:on 820422,during Refueling Outage,Leak Repair Procedures on Valve SI-13B Revealed Significant Boric Acid Corrosion Wastage of body-to-bonnet Bolts.Caused by Bolt Degradation.Affected Bolts Replaced ‎ (← links)
  • 05000305/LER-1990-005, :on 900404,intergranular Attack & IGSCC Results in Both Steam Generators a & B Being Categorized as C-3.All Defective Tubes Plugged & Sludge Lancing & Crevice Flushing Conducted ‎ (← links)
  • 05000305/LER-1982-003-03, /03L-0:on 820116,1A Zone SV Fan Started Automatically.Caused by Solenoid Valve Failure Due to Burned Out Coil in Closed Position Which Automatically Opened Damper.Coil Replaced & Sys Tested Satisfactorily ‎ (← links)
  • 05000305/LER-1982-003, Forwards LER 82-003/03L-0 ‎ (← links)
  • 05000305/LER-1982-001-03, /03L-0:on 820108,during Operability Check of Zone Special Ventilation,Exhaust Fan 1B Failed to Start.Caused by Failure of Solenoid Valve Due to Sticking Solenoid.Valve Replaced & Sys Tested.Design Change Initiated ‎ (← links)
  • 05000305/LER-1982-001, Forwards LER 82-001/03L-0 ‎ (← links)
  • 05000305/LER-1981-039-03, /03X-1:on 811218,leaking Weld on Discharge Side of 1C Charging Pump Relief valve,CVC-101C,discovered.Caused by Vibrations & Pulsations in Associated Piping.Pipe Section Replaced.Design Change in Progress ‎ (← links)
  • 05000305/LER-1981-039, Forwards LER 81-039/03X-1 ‎ (← links)
  • 05000305/LER-1981-038-03, /03L-0:on 811113,during Surveillance Testing on Shield Bldg Vent Sys,Check Damper SBV-10A Failed Shut.Caused by Ruptured Diaphragm Which Separates Motor from Oil Reservoir.Motor Replaced ‎ (← links)
  • 05000305/LER-1981-038, Forwards LER 81-038/03L-0 ‎ (← links)
  • 05000305/LER-1981-034-03, /03L-0:on 811018,during Normal operations,1B Zone SV Fan Started Automatically.Caused by Solenoid Failure Due to Burned Out Coil in Safe Position Automatically Starting Fan & Opening Damper.Coil Replaced ‎ (← links)
  • 05000305/LER-1981-034, Forwards LER 81-034/03L-0 ‎ (← links)
  • 05000305/LER-1981-032, Informs That Repts for LER 81-032/01T-0 & LER 81-033/01T-0 Were Incorrectly Submitted as LER 81-032/03L-0 & LER 81-033/03L-0 ‎ (← links)
  • 05000305/LER-1981-013, Forwards LER 81-013/03L-0 ‎ (← links)
  • 05000305/LER-1981-014-03, /03X-1:on 810507,during Test of Presurizer Level Channels,Found Transmitter to Channel Lt 427 Out of Spec Low,Implying That High Level Reactor Trip Relay Would Have Tripped.Will Change Transmitters ‎ (← links)
  • 05000305/LER-1981-035-03, /03L-0:on 811030,during Sampling & Analysis of Chemical & Vol Control Sys,Noted Monitor Tank Indicated Total Tritium Activity Exceeded Tech Specs.No Cause Stated. Liquid Transferred to Reduce Setpoint ‎ (← links)
  • 05000305/LER-1981-035, Forwards LER 81-035/03L-0,LER 81-014/03X-1 & Corrected LER 81-015/03X-2 ‎ (← links)
  • 05000305/LER-1981-033-01, /01T-0:on 811016,diesel Generator 1B Removed from Svc While Component Cooling Water Exchanger 1A Out of Svc. Caused by Personnel Error.Personnel Advised of Importance of Maintaining Redundant Equipment ‎ (← links)
  • 05000305/LER-1981-032-01, /01T-0:on 811013,high Solids Content of Liquid Waste Discharge from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon Exceeded ETS Increase Limits.Caused by Personnel Error in Calculation of Allowable Discharge Rates ‎ (← links)
  • 05000305/LER-1981-031-03, /03L-0:on 811002,sampling & Analysis of Chemical & Vol Control Sys Boron Recycle Monitor Tank 1A Indicated Tritium Activity Exceeded Max Allowable Limits.Caused by Increased Tritium Content in RCS & Boric Acid Evaporator ‎ (← links)
  • 05000305/LER-1981-005-03, Apparent Discrepancy Between Tech Specs & Test Procedure Reported as Inadequacy in Implementation of Controls.Review Indicated That Test Sequence Conforms W/Tech Spec.Tech Spec Revised for Clarity ‎ (← links)
  • 05000305/LER-1981-029-03, /03L-0:on 810828,check Damper SBV-3A Failed to Open Resulting in Inability of Sys to Perform to Design. Caused by Hydraulic Oil Leak Resulting from Pump Seals Wearing Out.Pump Replaced & Valve Tested Satisfactorily ‎ (← links)
  • 05000305/LER-1981-028-03, /03L-0:on 810828,supply Breaker Overloads Tripped During Testing of Component Cooling Water Inlet Valve CC 400B.Caused by Worn Gears in Operator.Worn Gears Replaced ‎ (← links)
  • 05000305/LER-1981-026-03, /03L-0:on 810817,auxiliary Feedwater Pump Inservice Testing Not Performed within 7 Days After Reaching Primary Temp Limit.Caused by Misinterpretation of ASME Code.Pumps Tested & Procedures Revised ‎ (← links)
  • 05000305/LER-1981-026, Forwards LER 81-026/03L-0 ‎ (← links)
  • 05000305/LER-1981-027-03, /03L-0:on 810820,during Routine Plant Tour, Excess Shaft Leakage Noted on 1B Boric Acid Transfer Pump. Caused by Corroded Pipe Plug in Boric Acid Pump Housing.Plug Replaced W/Stainless Plug ‎ (← links)
  • 05000305/LER-1981-027, Forwards LER 81-027/03L-0 ‎ (← links)
  • 05000305/LER-1980-041-01, /01X-3:on 801216,IE Bulletin 79-01B Review Identified Three Limit Switches That Are Not Sealed Installations & May Become Submerged post-LOCA.Caused by Unclear Requirement at Date of Installation ‎ (← links)
  • 05000305/LER-1980-041, Forwards LER 80-041/01X-3.Detailed Event Analysis Submitted ‎ (← links)
  • 05000305/LER-1982-035-03, /03L-1:on 821216,during Full Power Operation, Pinhole Leak Discovered in Suction Line from Vol Control Tank to Charging Pumps.Caused by Vibrations & Pulsations in Associated Piping.Leak Plugged ‎ (← links)
  • 05000305/LER-1982-035, Forwards LER 82-035/03L-1 ‎ (← links)
  • 05000305/LER-1983-014-03, /03L-0:on 830603,while Performing Monthly RHR Pump & Valve Surveillance Test,Containment Sump B Isolation Valve SI-350B Would Not Cycle Closed.Caused by Mechanical Interlock Sticking in Open Position ‎ (← links)
  • 05000305/LER-1983-015-03, /03L-0:on 830606,during Valve Timing Test for Td Auxiliary Feedwater Pump,Valve Failed to Electrically Open. Caused by Faulty Torque Switch & Maladjusted Tripper Cam. Valve Operator Rebuilt & Cam Reset ‎ (← links)
  • 05000305/LER-1981-030-03, /03L-0:on 810903,surveillance Procedure Found to Incorrectly Measure Shield Bldg Vent Sys Exhaust Flow from Annulus.Caused by Surveillance Procedures Written to Demonstrate Original Design Criteria ‎ (← links)
  • 05000305/LER-1981-030, Forwards LER 81-030/03L-0 ‎ (← links)
  • 05000305/LER-1981-024-03, /03L-0:on 810730,low Boric Acid Heat Tracing Temp Detected on Section of Piping Between Boric Acid Tanks & Safety Injection Pumps.Caused by Removal of Insulation from Boric Acid Heat Tracing Circuits to Permit Maint ‎ (← links)
  • 05000305/LER-1981-024, Forwards LER 81-024/03L-0 ‎ (← links)
  • 05000305/LER-1981-025-03, /03L-0:on 810807,safety Injection High Containment Pressure Setpoint Discovered to Be Less Conservative than Required by Tech Spec Due to Foxboro Containment Pressure Transmitter Out of Calibr.Caused by Instrument Drift ‎ (← links)
  • 05000305/LER-1981-025, Forwards LER 81-025/03L-0 ‎ (← links)
  • 05000305/LER-1981-023-03, /03L-0:on 810621,boric Acid Found Leaking from Instrument Isolation Valve CVC-11188.Caused by Leaking Diaphragm & Corroded Bonnet.Transfer Pump 1A Isolated & Bonnet Assembly Replaced ‎ (← links)
  • 05000305/LER-1981-023, Forwards LER 81-023/03L-0 ‎ (← links)
  • 05000305/LER-1981-022-03, /03L-0:on 810619,spent Fuel Pool Boron Sampling Not Performed within Allotted Time Frame During Steady State Operation.Caused by Temporary Work Load Increase on Chemistry Staff.Sample Taken & Analyzed ‎ (← links)
  • 05000305/LER-1981-022, Forwards LER 81-022/03L-0 ‎ (← links)
  • 05000305/LER-1981-021-03, /03L-0:on 810611,found Visual Verification of Valve Motion & Limit Switch Not Performed During Refueling Outage for Valves Inaccessible During Normal Operation Per Iwv 3300 of 1974 ASME Code.Caused by Procedural Oversight ‎ (← links)
  • 05000305/LER-1981-021, Forwards LER 81-021/03L-0 ‎ (← links)
  • 05000305/LER-1981-018-03, /03L-0:on 810516,testing Indicated That Low Pressure Safety Injection & Reactor Trip Were Below Tech Spec Limits for Pressure Transmitters.Caused by Instrument Drift.Sensing Lines Flushed.Amplifier Replaced ‎ (← links)
  • 05000305/LER-1981-017-03, /03L-0:on 810515,discovered That High Pressure Reactor Trip Setpoints for Pressure Transmitters Were Higher than Tech Spec.Caused by Setpoint Drift.Instruments Recalibr ‎ (← links)
  • 05000305/LER-1981-016-03, /03L-0:on 810515,tests Indicated That Two Foxboro RCS Flow Transmitters in Loop a Were Out of Calibr.Caused by Setpoint Drift.Transmitters Recalibr ‎ (← links)
  • 05000305/LER-1981-020-03, /03L-0:on 810606,condensate Water Storage Tank Level Went Below Tech Spec Limit.Caused by Normal Tank Water Usage During Startup & Turbine Testing Coincident W/ Demineralizer Regeneration ‎ (← links)
  • 05000305/LER-1981-020, Forwards LER 81-020/03L-0 ‎ (← links)
  • 05000305/LER-1981-019-03, /03L-0:on 810605,during Refueling Outage,Portable Radiation Survey Instrument Checks for May Not Performed Per Tech Specs.Caused by Oversight Due to Reassignment of Personnel.Instruments Will Be Source Checked in June ‎ (← links)
  • 05000305/LER-1981-019, Forwards LER 81-019/03L-0 ‎ (← links)
  • 05000305/LER-1981-015-03, /03L-0:on 810510,steam Flow Transmitter Found Out of Calibr Resulting in Bi Steam Flow & hi-hi Steam Flow Trip Settings Less Conservative than Tech Spec.Caused by Instrument Drift.Transmitter Recalibr ‎ (← links)
  • 05000305/LER-1981-015, Forwards LER 81-015/03L-0 ‎ (← links)
  • 05000305/LER-1981-003, Forwards LER 81-003/03L-0 ‎ (← links)
  • 05000305/LER-1980-044, Forwards LER 80-044/03L-0 ‎ (← links)
  • 05000305/LER-1981-010, Forwards LER 81-010/01T-0 ‎ (← links)
  • 05000305/LER-1980-005-03, /03X-1:on 800131,during IE Bulletin 79-14 Insp, Discovered That Thermal Restraint Was Omitted from RHR Sys. Caused by Error in Transferring Piping Design to Const Drawings.Restraint Has Been Installed ‎ (← links)
  • 05000305/LER-1980-005, Forwards LER 80-005/03X-1 ‎ (← links)
  • 05000305/LER-2012-009, Regarding Missed Verification of Offsite Circuit Breaker Alignment and Power Availability, within Completion Time ‎ (← links)
  • 05000305/LER-2012-008, Regarding Residual Heat Removal System Interlock Surveillance Not Met Due to Improper Setpoint ‎ (← links)
  • 05000305/LER-2012-006, Regarding Train a Special Ventilation Inoperable for Longer Period than Allowed Due to Charcoal Filter Efficiency ‎ (← links)
  • 05000305/LER-2012-007, Regarding Minor Thru-Wall Leak at Weld in Safety Injection Suction Piping ‎ (← links)
  • 05000305/LER-2012-005, Regarding Both Safety Injection Trains Inoperable Due to Venting ‎ (← links)
  • 05000305/LER-2012-004, Regarding Pressure Boundary Leakage from Socket Weld on 3/4-inch Pipe to Sample Valve RHR-600 ‎ (← links)
  • 05000305/LER-2012-003, For Kewaunee Power Station, Regarding Nuclear Instruments Inoperable for Longer Period than Allowed by Technical Specifications ‎ (← links)
  • 05000305/LER-2012-002, For Kewaunee Regarding Safety Injection Inoperable for Longer Period than Allowed by Technical Specifications ‎ (← links)
  • 05000305/LER-2012-001, Regarding Pressurizer PORV and Reactor Coolant System Vent Valves Appendix R Spurious Operation Concerns ‎ (← links)
  • 05000305/LER-2011-006, Misapplication of Testing Allowance Results in Condition Prohibited by Technical Specifications ‎ (← links)
  • 05000305/LER-2011-005, For Kewaunee Power Station, for Shield Building Ventilation Train Inoperable for Longer Period than Allowed by Technical Specifications ‎ (← links)
  • 05000305/LER-1981-013-03, /03L-0:on 810422,during Facility Shutdown for Leak Rate Test,Investigation Revealed Cracked Root Weld on Vent Valve of Containment Sump B to RHR Pump 1B Piping.Caused by Sharp Blow of Unknown Origin.Repair Scheduled ‎ (← links)
  • 05000305/LER-1981-010-01, /01T-0:on 810330,nonradioactive Liquid Found Discharged from Waste Neutralizing Tank to Svc Water Pretreatment Lagoon.Caused by Error in Calculation of Allowable Discharge Rates.Proposed Tech Spec Submitted ‎ (← links)
  • 05000305/LER-1981-003-03, /03L-0:on 810122,supply Thermal Overloads Tripped During Testing of Valve CC400B (Component Cooling Water Inlet to Residual Heat Exchanger 1B).Caused by Wiring Error. Wiring Fault Identified & Corrected ‎ (← links)
  • 05000305/LER-1980-044-03, /03L-0:on 801229,noted That RCS Oxygen Sample Test Not Performed W/Frequency Required by Tech Specs.Caused by Personnel Error.Personnel Will Be Instructed in Implementation of Procedure ‎ (← links)
  • 05000305/LER-2011-004, For Kewaunee Power Station, Regarding One Offsite AC Electrical Circuit Inoperable Not Performed Until After Discovery ‎ (← links)
  • 05000305/LER-2011-003, Regarding Valve SI-11A, Safety Injection to Loop a Cold Leg, Breaker Found on with Plant in Mode 3 ‎ (← links)
  • 05000305/LER-2011-002, For Kewaunee Power Station Loss of Station Backfeed Results in Loss of One Train of Offsite Power During Refueling Outage ‎ (← links)
  • 05000305/LER-2011-001, For Kewaunee Power Station, Regarding Auxiliary Building Special Ventilation Inoperability Results in Prohibited Technical Specification Condition ‎ (← links)
  • 05000305/LER-2009-006-01, Regarding Protection Instruments Not Calibrated to Individual Technical Specification Set Point Limits ‎ (← links)
  • 05000305/LER-2010-001, For Kewaunee, Regarding Safety Injection Pump Recirculation Line Isolation Results in Violation of Technical Specification ‎ (← links)
  • 05000305/LER-2009-009, Automatic Start of Emergency Diesel Generator Due to Safeguards Bus Power Supply Transformer Trip ‎ (← links)
  • 05000305/LER-2009-008, Regarding Inadequately Controlled Reactor Coolant System Dilution Results in Violation of Technical Specifications ‎ (← links)
  • 05000305/LER-2009-007, Regarding Inadequate Station Procedures for Testing Containment Vacuum Breaker System Leads to a Violation of Technical Specification Requirements ‎ (← links)
  • 05000305/LER-2009-006, Protection Instruments Not Calibrated to Individual Technical Specification Set Point Limits ‎ (← links)
  • 05000305/LER-2009-005, Regarding Nonfunctional Steam Exclusion Door Results in Postulated Inoperability of Safety Systems ‎ (← links)
  • 05000305/LER-2009-004, For Kewaunee, Regarding Failed Backdraft Damper Renders Containment Fan Coil Unit Inoperable ‎ (← links)
  • 05000305/LER-2009-002, Regarding Steam Exclusion Door Blocked Open During Maintenance Activities ‎ (← links)
  • 05000305/LER-2009-003, Regarding Containment Spray Pump a Inoperable at Degraded Voltage Protection Setpoint ‎ (← links)
  • 05000305/LER-2009-001, Emergency Diesel Generators Inoperable Requiring Notice of Enforcement Discretion ‎ (← links)
  • 05000305/LER-2008-003, Door Bottom Seal Failure Results in Inoperability of Control Room Ventilation System ‎ (← links)
  • 05000305/LER-2008-002, Blocked Open Steam Exclusion Door Results in Postulated Inoperability of Safety Systems ‎ (← links)
  • 05000305/LER-2008-001, Pressurizer PORV and Reactor Coolant System Vent Valves Appendix R Spurious Operation Concern ‎ (← links)
  • 05000305/LER-2007-010, Allowed Outage Time of the Function for Automatic Initiation of the Control Room Post-Accident Recirculation System on a High Radiation Signal Not Met ‎ (← links)
  • 05000305/LER-2007-009, Re Both Trains of Shield Building Ventilation Inoperable Due to Damper Controller Failure on One Train While Second Train Inoperable for Routine Maintenance ‎ (← links)
  • 05000305/LER-2007-008, Inadequate Emergency Diesel Generator Testing When Redundant Emergency Diesel Generator Was Inoperable ‎ (← links)
  • 05000305/LER-2007-003, Withdrawal of Licensee Event Report 2007-003-00, Condition Determined Not to Meet the Criteria for Reportability ‎ (← links)
  • 05000305/LER-2007-006, From Kewaunee Re Reactor Coolant System Pressure-Temperature Limits Momentarily Exceeded During Solid Plant Operation ‎ (← links)
  • 05000305/LER-2007-007, Regarding Unexpected Safety Injection Response with Safeguards Buses Connected to the Reserve Auxiliary Transformer ‎ (← links)
  • 05000305/LER-2007-005, Regarding Incorrect Control Power Transformers Results in Inoperable Safety-Related Loads ‎ (← links)
  • 05000305/LER-2007-004, Re Reactor Trip During Quarterly Nuclear Instrumentation Calibration Procedure ‎ (← links)
  • 05000305/LER-2007-001, Regarding Reactor Trip During Turbine Trip Mechanism Testing ‎ (← links)
  • 05000305/LER-2006-012, Regarding Reactor Trip from Loss of Instrument Bus ‎ (← links)
  • 05000305/LER-2007-002, Regarding Issues with Amag/Westinghouse Calculations for Full Power Result in Reduced Power Operation ‎ (← links)
  • 05000305/LER-2006-013, Regarding Reactor Trip from Nuclear Instrumentation Low Range-High Flux Trip Caused by Blind Relay Contact Failure ‎ (← links)
  • 05000305/LER-2006-009, Regarding Emergency Diesel Generator (EDG) Fuel Oil Leak ‎ (← links)
  • 05000305/LER-2006-010, Re Inadequate Calibration of Radiation Monitor R-19 ‎ (← links)
  • 05000305/LER-2006-008, Diesel Generator Operability Testing Interval Exceeded ‎ (← links)
  • 05000305/LER-2006-006, Re Safety Injection Accumulator Level to Volume Correlation and Alarm Setpoints Non-Conservative ‎ (← links)
  • 05000305/LER-2005-012-02, Regarding Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
  • 05000305/LER-2006-007, Regarding RCS RTD Cross Calibration Procedure Has the Potential to Exceed the TS LCO Allowed Time Limit ‎ (← links)
  • 05000305/LER-2006-005, Re Seal Water Flow to the Service Water Pump Bearings Found Degraded ‎ (← links)
  • 05000305/LER-2005-010, Formal Withdrawal ‎ (← links)
  • 05000305/LER-2006-004, Regarding Incorrect Assumption Regarding De-Rating of EDGs During Loaded Operation ‎ (← links)
  • 05000305/LER-2006-003, Re Residual Heat Removal Pumps Declared Inoperable Due to Flooding Vulnerability ‎ (← links)
  • 05000305/LER-2006-002, Re Safety-Related Relay Racks with Improper Quality Classification of Foxboro Signal Conditioning Modules ‎ (← links)
  • 05000305/LER-2005-012-01, For Kewaunee Power Station Re Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
  • 05000305/LER-2005-016-01, Re Automatic Reactor Trip Due to Main Feedwater Pump Motor Failure ‎ (← links)
  • 05000305/LER-2005-016, Re Automatic Reactor Trip Due to Main Feedwater Pump Motor Failure ‎ (← links)
  • 05000305/LER-2005-015, Kewuanee Both Trains of Component Cooling Water Inoperable During Shifting of Running Equipment ‎ (← links)
  • 05000305/LER-2005-014-01, Re Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown ‎ (← links)
  • 05000305/LER-2005-013, Regarding the Throttle Valves to the Turbine Bearing Oil Coolers for the Turbine Driven AFW Pump Could Be Blocked by Debris ‎ (← links)
  • 05000305/LER-2005-011, Re the Setting of a Permissive (P-10) in the Power Range Channels of the Nuclear Instrumentation System Was Outside of Plant Technical Specification Requirements ‎ (← links)
  • 05000305/LER-2005-012, Re Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
  • 05000305/LER-2005-014, Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown ‎ (← links)
  • 05000305/LER-2005-009, Re Firearm Discovered During Security Search Process ‎ (← links)
  • 05000305/LER-2005-008, Turbine-Driven Auxiliary Feedwater Pump Inoperable Due to Insufficient Net Positive Suction Head ‎ (← links)
  • 05000305/LER-2005-007, Regarding Unanalyzed Condition: Design Deficiency - Component Cooling Water System Inoperable Due to Pump Run Out Conditions ‎ (← links)
  • 05000305/LER-2005-006, Re Auxiliary Feedwater Pumps Postulated to Fall Due to Air Ingestion Through Pump Packing ‎ (← links)
  • 05000305/LER-2005-005, Re Emergency Diesel Generator Exhaust Ductwork Not Adequately Protected from Potential Tornado Winds & Missiles ‎ (← links)
  • 05000305/LER-2005-004, Regarding Safe Shutdown Potentially Challenged by Unanalyzed Internal Flooding Events and Inadequate Design ‎ (← links)
  • 05000305/LER-2005-003, Regarding Inadvertent Reactor Protection Trip While Shutdown - Caused by Procedure Adherence Deficiencies and Inadequate Shift Management Oversight ‎ (← links)
  • 05000305/LER-2005-002, Re Auxiliary Feedwater Pumps Assumed to Fall from Postulated Loss of Primary Water Source - Safe Shutdown and Accident Analysis Assumptions Not Assured - Inadequate Design of Pump Protective Equipment ‎ (← links)
  • 05000305/LER-2005-001, Re Reactor Thermal Power Eight-Hour Average Limit Exceeded ‎ (← links)
  • 05000305/LER-2004-005, Regarding Safety Injection Accumulator Isolation Valve Position During Heatup Violated Technical Specifications - Procedure Deficiency ‎ (← links)
  • 05000305/LER-2004-004, Re Procedural Deficiency Results in Automatic Containment Ventilation Isolation Being Disabled Contrary to Technical Specifications ‎ (← links)
  • 05000305/LER-2004-003, Regarding Control Room Boundary Door Found Ajar - Accident Analysis Assumptions Impacted - Personnel Error ‎ (← links)
  • 05000305/LER-2004-002, Regarding Missed Technical Specification Surveillance for Leak Testing In-Core Detectors Prior to Use or Transfer, Due to Inadequate Procedure Guidance ‎ (← links)
  • 05000305/LER-2004-001, Regarding Blocked Lube Oil Coolers to Safety Injection Pumps Force Plant Shutdown ‎ (← links)
  • 05000305/LER-2003-006, Regarding Component Cooling System R-17 Radiation Detector Pipe Assembly Leakage ‎ (← links)
  • 05000305/LER-2003-005, Failure to Perform Quarterly Surveillance Testing on Portable Radiation Survey Instruments as Required by Technical Specification Table 4.1-1 Item 25 ‎ (← links)
  • 05000305/LER-2003-004, For Kewaunee Failure to Log Nuclear Instrumentation Quadrant Power Tilt as Required by Tech Spec 3.10.j Due to Procedural Inadequacy ‎ (← links)
  • 05000305/LER-2001-002-03, Re Non-Rated Fire Barrier Separating Redundant Appendix R Safe Shutdown Capabilities ‎ (← links)
  • 05000305/LER-2003-002, From Kewaunee Re Shutdown Initiated - Diesel Generator Failed Start Test - Unusual Event - Caused by Start Relay Failure ‎ (← links)
  • 05000305/LER-2003-001, Technical Specifications Action Requirements Not Followed - Personnel Failed to Follow Procedure ‎ (← links)
  • 05000305/LER-2002-003, From Kewaunee Regarding TS Action Requirements Not Follow - Inadequate Tech Spec Basis ‎ (← links)
  • 05000305/LER-2002-002, Re Technical Specifications Required Shutdown ‎ (← links)
  • 05000305/LER-2002-001, Re Unanalyzed Condition: Strong Pump - Weak Pump Interaction Between Component Cooling Water Pumps ‎ (← links)
  • 05000305/LER-2001-005-01, Re Unanalyzed Condition: Non-Safety Related Service Water Header Flows Affects Safety Related Components ‎ (← links)
• ML11252A653 ‎ (← links)
• ML072620144 ‎ (← links)
• ML050970304 (redirect page) ‎ (← links)
• 05000305/LER-2005-012-02, Regarding Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
• 05000305/LER-2005-010, Formal Withdrawal ‎ (← links)
• 05000305/LER-2005-012-01, For Kewaunee Power Station Re Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
• 05000305/LER-2005-016-01, Re Automatic Reactor Trip Due to Main Feedwater Pump Motor Failure ‎ (← links)
• 05000305/LER-2005-016, Re Automatic Reactor Trip Due to Main Feedwater Pump Motor Failure ‎ (← links)
• 05000305/LER-2005-015, Kewuanee Both Trains of Component Cooling Water Inoperable During Shifting of Running Equipment ‎ (← links)
• 05000305/LER-2005-014-01, Re Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown ‎ (← links)
• 05000305/LER-2005-013, Regarding the Throttle Valves to the Turbine Bearing Oil Coolers for the Turbine Driven AFW Pump Could Be Blocked by Debris ‎ (← links)
• 05000305/LER-2005-011, Re the Setting of a Permissive (P-10) in the Power Range Channels of the Nuclear Instrumentation System Was Outside of Plant Technical Specification Requirements ‎ (← links)
• 05000305/LER-2005-012, Re Residual Heat Removal Pump Run-Out Upon Loss of Instrument Air While Aligned for Sump Recirculation ‎ (← links)
• 05000305/LER-2005-014, Technical Specification LCO Not Entered for Diesel Generators Inoperable While in Refueling Shutdown ‎ (← links)
• 05000305/LER-2005-009, Re Firearm Discovered During Security Search Process ‎ (← links)
• 05000305/LER-2005-008, Turbine-Driven Auxiliary Feedwater Pump Inoperable Due to Insufficient Net Positive Suction Head ‎ (← links)
• 05000305/LER-2005-007, Regarding Unanalyzed Condition: Design Deficiency - Component Cooling Water System Inoperable Due to Pump Run Out Conditions ‎ (← links)
• 05000305/LER-2005-006, Re Auxiliary Feedwater Pumps Postulated to Fall Due to Air Ingestion Through Pump Packing ‎ (← links)
• 05000305/LER-2005-005, Re Emergency Diesel Generator Exhaust Ductwork Not Adequately Protected from Potential Tornado Winds & Missiles ‎ (← links)
• 05000305/LER-2005-004, Regarding Safe Shutdown Potentially Challenged by Unanalyzed Internal Flooding Events and Inadequate Design ‎ (← links)
• 05000305/LER-2005-001-01, Kewanee Nuclear Power Plant Regarding Reactor Thermal Power Eight-Hour Average Limit Exceeded (redirect page) ‎ (← links)
  • ML051440295 (redirect page) ‎ (← links)
  • 05000305/LER-2005-001-01 (redirect page) ‎ (← links)
• 05000305/LER-2005-003, Regarding Inadvertent Reactor Protection Trip While Shutdown - Caused by Procedure Adherence Deficiencies and Inadequate Shift Management Oversight ‎ (← links)
• 05000305/LER-2005-002, Re Auxiliary Feedwater Pumps Assumed to Fall from Postulated Loss of Primary Water Source - Safe Shutdown and Accident Analysis Assumptions Not Assured - Inadequate Design of Pump Protective Equipment ‎ (← links)