Pages that link to "05000272/LER-1981-009, Forwards LER 81-009/01X-2.Detailed Event Analysis Encl"

The following pages link to 05000272/LER-1981-009, Forwards LER 81-009/01X-2.Detailed Event Analysis Encl:

Displayed 21 items.

• 05000311/LER-1981-050, Forwards LER 81-050/03X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-035, Forwards LER 81-035/03X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000311/LER-1981-129, Forwards LER 81-129/03X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-120, Forwards LER 81-120/03X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-116, Forwards LER 81-116/03X-1.Detailed Event Analysis Encl ‎ (← links)
• ML20063H515 (redirect page) ‎ (← links)
• 05000272/LER-1981-009 (redirect page) ‎ (← links)
  • ML18086A501 (redirect page) ‎ (← links)
    • ML18086A502 ‎ (← links)
  • ML18085A903 (redirect page) ‎ (← links)
    • ML18085A904 ‎ (← links)
• 05000272/LER-1981-060, Forwards LER 81-060/99X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-110, Forwards LER 81-110/03X-2.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-107, Forwards LER 81-107/03X-2.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-052, Forwards LER 81-052/03L-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-060-99, /99X-1:on 810611,diesel Fire Suppression Pump 2 Failed to Start in Automatic Mode.Caused by Shearing Off of Drive Shaft Counterweight Gear.Shaft Replaced ‎ (← links)
• 05000272/LER-1981-110-03, /03X-2:on 811106,while in Hot Standby,Inadvertent Safety Injection Occurred.Boron Injection Tank Was Also Diluted Below Tech Specs During Subsequent Valve Verification.Safety Injection Caused by Loss of 1A Bus ‎ (← links)
• 05000272/LER-1981-107-03, /03X-2:on 811029,inadvertent Safety Injection Occurred After Reactor Trip Due to Loss of Vital Bus 1A Inverter.Dilution of Boric Acid Sys Caused by Personnel Failing to Follow Procedures.Operator Counseled ‎ (← links)
• 05000272/LER-1981-052-03, /03L-1:on 810520,ESF Actuation Sys Channel 1B Failed.Probably Caused by Voltage Transient on 1B Vital 115-volt Ac Distribution Sys.Noise Suppression Circuits Installed in Safety Equipment Control Cabinet ‎ (← links)
• 05000272/LER-1981-092-01, /01T-0:on 811020,during Routine Containment Insp, Operator Discovered Svc Water Leaking from Third from Top Secondary Coil on Containment Fan Coil Unit 15.Caused by Secondary Coil Failure.Leaking Coil Blank Flanged Off ‎ (← links)
• 05000272/LER-1981-053-03, /03L-0:on 810520,dicovered Leakage from 1/4 Inch Nipple on Water Jacket of Diesel Generator 15.Apparently Caused by Personnel Error.Nipple Replaced & Diesel Generator Tested Satisfactorily ‎ (← links)
• 05000272/LER-1981-053, Forwards LER 81-053/03L-0.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-028-03, /03X-1:on 810311,discovered Detector C Would Not Enter Normal Thimble Path & Leak Alarm Annunciated.Reactor Coolant Overflowed & Thimble Tube H11 Found Leaking.Cause Undetermined.Thimble Tube Capped on Top Side ‎ (← links)
• 05000272/LER-1981-028, Forwards LER 81-028/03X-1.Detailed Event Analysis Encl ‎ (← links)
• 05000272/LER-1981-009, Supplemental LER 81-009/01X-1:on 810129,during Normal Operation,Containment Sump Pump Functions Indicated Excess Leakage.Caused by Level Detector Failure.After Unsucessful Calibr Efforts,Detector Replaced in Kind (redirect page) ‎ (← links)
  • ML18086A503 (redirect page) ‎ (← links)
    • ML18086A502 ‎ (← links)
  • 05000311/LER-1981-089, Supplemental LER 81-089/03X-1:on 810817,during Routine Wear & Alignment Check,Auxiliary Feedwater Pump 23 Linkage Between Trip Mechanism & Valve Found Loose.Caused by Loose Bolts.Bolts Tightened ‎ (← links)
  • 05000272/LER-1981-019, Forwards LER 81-019/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-002, Forwards LER 81-002/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-106, Forwards LER 81-106/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-057, Forwards LER 81-057/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-029, Forwards LER 81-029/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-019, Forwards LER 81-019/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-058, Forwards LER 81-058/04L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-059, Supplemental LER 81-059/01X-01:on 810616,during Initial Testing,Auxiliary Feedwater Pump 23 Turbine Steam Supply Check Valves 21MS46 & 23MS46 Found Damaged Internally.Caused by Steam Flow Sys Oscillations ‎ (← links)
  • 05000272/LER-1981-121, Supplemental LER 81-121/03X-1:on 811228,svc Water Leak in Spool Piece Discovered Between Valves 12SW57 & 58.Design Change Package 1EC-0504 Implemented to Replace Piece W/Stainless Steel for Improved Corrosion Resistance ‎ (← links)
  • 05000272/LER-1981-106-03, /03X-1:on 811029,14 Fire Doors Declared Inoperable,Following Insp.Caused by Improper Operation by Personnel & Inadequate attention.Seventy-nine Doors & 49 Frames Replaced.Frames Repaired & Installed ‎ (← links)
  • 05000311/LER-1981-066-03, /03X-1:on 810720,controllers 2607A & 2610B Failed Due to Low Amperage Readings in Tapes & Two Independent Channels of Heat Trace Inoperable.Caused by Defective Splice.Surveillance Procedures Revised ‎ (← links)
  • 05000311/LER-1981-043-03, /03X-2:on 810612 & 18,pressurizer Overprotection Sys Declared Inoperable Due to Excessive Leakage to Pressurizer Relief tank.Copes-Vulcan 0100-160 Valve Seat Leakage Identified as Generic Problem ‎ (← links)
  • 05000272/LER-1981-019-03, /03X-1:on 810221,fire Alarm Annunciation on Panel 1RP5 for Waste Gas Compressor Observed But No Audible Alarm Heard.Caused by Failure of Amplifier to Discriminate Sys Noise from Announcement Function.Amplifier Adjusted ‎ (← links)
  • 05000311/LER-1981-002-03, /03L-0:on 810117,during Routine Surveillance Test, 2A Diesel Generator Failed to Accelerate to 875 Rpm within 10-s.Caused by Failure of Solenoid Pilot Valves 21DA23A & 22DA23B.Valves Replaced ‎ (← links)
  • 05000311/LER-1981-106-03, /03X-1:on 810924,damper 2CAA4 in Control Room Emergency Air Conditioning Sys Failed to Close in Correct Position.Caused by Sticking Damper Due to Binding of Operating Mechanism.Mechanism Freed & Tested ‎ (← links)
  • 05000311/LER-1981-021-03, /03L-0:on 810519,auxiliary Feedwater Tank Fell Below Min Operating Level.Caused by Personnel Error.When Tank Used as Water Supply for Steam Line Heatup,Supply to Tank Throttled Too Far to Compensate for Water Removed ‎ (← links)
  • 05000272/LER-1981-057-03, /03L-0:on 810526,leak Rate on 100-ft Containment Air Lock Exceeded Allowable Leak Rate.Caused by Improperly Aligned Outer Door.Door Centered & Tested Satisfactorily ‎ (← links)
  • 05000311/LER-1981-029-03, /03L-0:on 810520,reactor Coolant Pump Flow Indication,Channel 2 Failed Low.On 810526,bistable Tripped. Caused by Failure of Flow Transmitter 2FT425.Oscillator Amplifier Assembly & Force Motor Assembly Replaced ‎ (← links)
  • 05000311/LER-1981-019-03, /03L-0:on 810517,rod Position Indicator for Bank 1B4 Was Observed Offscale.Caused by Signal Conditioning Module Out of Calibr.Module Recalibr & Tested Satisfactorily ‎ (← links)
  • 05000272/LER-1981-058-04, /04L-0:on 810528,util Failed to Submit 1980 Radiological Rept by 810401 Per ETS 5.6.1.1.Caused by Personnel Error.Rept Submitted 810528 ‎ (← links)
  • 05000311/LER-1981-036-03, /03L-0:on 810606,pressurizer Pressure Channel 1 Indicated Greater than Max Allowable Tolerance.Caused by Pressure Transmitter 2PT455 Out of Spec.Unit Calibr & Returned to Svc ‎ (← links)
  • 05000272/LER-1981-092, Forwards LER 81-092/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-095-03, /03L-0:on 810828,pressurizer Pressure Protection Channel Found Tripped & Low Pressure Annunciator Alarm Activated.Caused by Protection Channel Malfunction.Universal Board in Solid State Protection Sys Train a Replaced ‎ (← links)
  • 05000311/LER-1981-095, Forwards LER 81-095/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-090-01, /01T-0:on 810913,during Routine Insp,Svc Water Found Leaking at Rate of Approx 0.5 Gpm from Primary Coil on Containment Fan Coil Unit.Caused by Pinhole Leak in Bottom Primary Coil.Leaking Cooling Coil Flanged Off ‎ (← links)
  • 05000311/LER-1981-090, Forwards LER 81-090/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-081-03, /03L-0:on 810827,individual Rod Position Indicators for Control Rods 2A1,1SC1,1C2,1D4 & 2D2 Were in Disagreement W/Demand Position Indicators.Indicators Recalibr & 1SC1 Circuit Card Replaced ‎ (← links)
  • 05000272/LER-1981-081, Forwards LER 81-081/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-093-03, /03L-0:on 810825,auxiliary Alarm Annunciator Failed Causing Containment Sump Level Monitoring Sys to Be Declared Inoperable.Caused by Failure of Integrated Circuit Chips.Circuit Chips Replaced ‎ (← links)
  • 05000311/LER-1981-093, Forwards LER 81-093/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-082-03, /03L-0:on 810827,insulation Found Off Duct Outside Primary Sample Room Forming Penetration Barrier.Continuous Fire Watch Established.Insulation Reinstalled ‎ (← links)
  • 05000272/LER-1981-082, Forwards LER 81-082/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-080-03, /03L-0:on 810824,containment Fan Coil Unit Indicated No Svc Water Flow in High Speed.Caused by Leak of Flow Transmitter 13SW72 from Hole in Weld on Pipe Flange. Pipe Flange Rewelded ‎ (← links)
  • 05000272/LER-1981-080, Forwards LER 81-080/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-079-03, /03L-0:on 810824,monthly Surveillance Procedure 13.2.003 for Channel Check on Triaxial Time History Accelographs Had Been Overlooked.Caused by Misplacing of Insp Order Card.Procedure Performed & Personnel Counseled ‎ (← links)
  • 05000272/LER-1981-079, Forwards LER 81-079/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-124-03, /03X-1:on 811123,undervoltage Relay on 2C Vital Bus Was Actuating at 35% Instead of 70% Trip Setpoint Value. Caused by Mechanical Sticking.Undervoltage Relay Cleaned & Tested ‎ (← links)
  • 05000272/LER-1981-124, Forwards LER 81-124/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-083-03, Svc Water Leak Noticed from Bottom of Reducing Tee Near Supply Valve 12SW913 to Charging Pump 12 Oil Cooler.Caused by Internal Corrosion & Erosion in Reducing Tee.Tee Replaced & Pump Tested ‎ (← links)
  • 05000272/LER-1981-083, Forwards Corrected LER 81-083/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-091-03, /03X-1:on 810817,unit Attained 85% Rated Thermal Power.Turbine Overspeed Protection Surveillance Required within 24-hr of Attaining 85% Power Was Overlooked.Personnel Counseled & Reminded of 24-hr Requirements ‎ (← links)
  • 05000311/LER-1981-091, Forwards Corrected LER 81-091/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-122-03, /03L-0:on 811229,during Surveillance Test for Wet Pipe Sprinkler Flow for Svc Bldg,Audible Alarm Emitted Only Continuous Tone.Caused by Mechanically Jammed Encoder. Mechanism Unjammed & Tested Successfully ‎ (← links)
  • 05000272/LER-1981-122, Forwards LER 81-122/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-130-03, /03L-0:on 811219 & 21,axial Flux Difference Shifted Outside Target Band.Caused by Simultaneous Downward Rod Push & Power Decrease.Flux Stabilized & Action Statement Terminated ‎ (← links)
  • 05000311/LER-1981-130, Forwards LER 81-130/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-121-03, /03L-0:on 811228,svc Water Leak Discovered in Containment Fan Coil Spool Piece Between Valves 125W57 & 125W58 in 78-ft Evaluation North Penetration Area.Cause Not Stated.Spool Will Be Changed to Stainless Steel ‎ (← links)
  • 05000311/LER-1981-131-03, /03L-0:on 811228,low Reading Noticed on 24 Reactor Coolant Loop Flow Channel 2.Channel Declared Inoperable. Caused by Failure of Flow Transmitter.Flow Transmitter Replaced & Calibr Satisfactorily ‎ (← links)
  • 05000311/LER-1981-131, Forwards LER 81-131/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-128-03, /03L-0:on 811217,pressurizer Low Level Heaters Off Alarm Annunciated,Letdown Isolation Valves Closed & Pressurizer Pressure Fell Below Limit.Caused by Fuse Failure in Bistable Module.Fuse Replaced ‎ (← links)
  • 05000311/LER-1981-128, Forwards LER 81-128/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-114-01, /01X-2:on 811208,svc Water Discovered Leaking from Top Secondary Cooling Coil on Containment Fan Coil Unit 11. Caused by Secondary Coil Failure.Coil Repaired W/Belzona Metal Filler & Tested Satisfactory ‎ (← links)
  • 05000272/LER-1981-114, Forwards LER 81-114/01X-2.Detailed Event Rept Encl ‎ (← links)
  • 05000311/LER-1981-126-03, /03L-0:on 811212,instrument Points on Radiation Monitor 2R12A Failed High.Cause Unknown.Monitor Bench Tested Satisfactorily,Batteries Replaced & Monitor Reinstalled. Setpoints Reinstated & Tested ‎ (← links)
  • 05000272/LER-1981-115, Corrected LER 81-115/03L-0,on 811120,during Normal Power, Operator Received Feed Flow Plus Steam Flow Alarm & Noticed Steam Generator 13 Level Dropping.Associated Bistables Tripped;Steam Flow Channel 2 Transmitter Replaced ‎ (← links)
  • 05000311/LER-1981-126, Forwards LER 81-126/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-118-01, /01T-0:on 811226,svc Water Discovered Leaking from Second from Bottom Primary Coil on Containment Fan Coil Unit 11.Coil Isolated by Installation of Blank Flange Insert Between Svc Water Inlet Flanges ‎ (← links)
  • 05000272/LER-1981-118, Forwards LER 81-118/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-127-03, /03L-0:on 811215,operator Received Diesel Generator 2A Urgent Trouble Alarm.Caused by Failure of Prelubrication Oil Heater.Diesel Run Periodically to Maintain Oil Temp Above 110 F Until New Heater Is Installed ‎ (← links)
  • 05000311/LER-1981-125-03, /03L-0:on 811209,dc Alarm Produced on Auxiliary Alarm Typewriter.Caused by Internal Component Failure in 125-volt Dc Breaker.Breaker Replaced ‎ (← links)
  • 05000311/LER-1981-127, Forwards LER 81-127/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-125, Forwards LER 81-125/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-115-01, /01X-2:on 811125,during Routine Containment Insp, Svc Water Discovered Leaking from Second from Top Primary Cooling Coil on Containment Fan Coil Unit 24.Leak Repaired W/Belzona Metal Filler ‎ (← links)
  • 05000311/LER-1981-124-03, /03L-0:on 811123,during M3J Maint Test, Undervoltage Relay on 2C Vital Bus Was Discovered Actuating at 35% Trip Setpoint Value.Caused by Mechanical Sticking of Relay.Relay Cleaned & Tested Satisfactorily ‎ (← links)
  • 05000311/LER-1981-124, Forwards LER 81-124/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-119-03, /03L-0:on 811206,svc Water Leak Found on Charging Pump 12 on Return Line of Oil Cooler & Charging Pump Rendered Inoperable.Caused by Corrosion within Pipes.Carbon Steel Pipe Tee Replaced ‎ (← links)
  • 05000272/LER-1981-119, Forwards LER 81-119/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-117-03, /03L-0:on 811130,auxiliary Alarm Typewriter Inoperable Because Carriage Would Not Move.Caused by Disconnected Spring.Spring Replaced ‎ (← links)
  • 05000272/LER-1981-117, Forwards LER 81-117/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-115-03, /03L-0:on 811120,feed Flow Greater That Steam Flow Alarm Received & Steam Generator Level Found Dropping. Caused by Failure of Steam Generator Steam Flow Channel 2 Due to Transmitter Failure ‎ (← links)
  • 05000311/LER-1981-122-03, /03L-0:on 811119 & 1207,leakage Rate Exceeded Limit at 130-ft Elevation Containment Air Lock.Caused by Misalignment of Inner Door Latch Mechanism & Failure of Latch Bearing.Latch Bearing Replaced ‎ (← links)
  • 05000311/LER-1981-122, Forwards LER 81-122/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-123-03, /03L-0:on 811119,after Satisfactory Performance of M3B Surveillance test,2A Safeguards Equipment Cabinet Would Not Reset & Vital Bus Tripped,Stripping Bus of Loads. Caused Not stated.SK6 Input Reset Relay Replaced ‎ (← links)
  • 05000311/LER-1981-123, Forwards LER 81-123/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-121-03, /03L-0:on 811118 & 19,control Operator Noticed Individual Rod Position Indicator & Control Rod Bank Demand Indicator for Rod 2SB2 in Disagreement Greater than Tech Specs.Cause Not Stated.Meter Movemement Recalibr & Replaced ‎ (← links)
  • 05000311/LER-1981-121, Forwards LER 81-121/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-119-03, /03L-0:on 811111-28,quadrant Power Tilt Ratio Calculations (QPTR) Determined at 1.03 & Channel N-43 Declared Inoperable.Caused by Malfunctions in Power Range Channel N-43 Nuclear Instrumentation ‎ (← links)
  • 05000311/LER-1981-119, Forwards LER 81-119/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-120-03, /03L-0:on 811113,during Surveillance Test on Solid State Protection Sys Train B,Logic Sys for Reactor Coolant Loop Flow Failed Logic Test.Caused by Failure of A303 Universal Circuit Board.Circuit Board Replaced ‎ (← links)
  • 05000311/LER-1981-120, Forwards LER 81-120/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-108-01, /01T-0:on 811124,svc Water Found Leaking from Third from Bottom Primary Coil on Containment Fan Coil Unit (Cfcu).Cfcu Declared Inoperable on 811125.Caused by Coil Failure.Coil Blank Flanged Off ‎ (← links)
  • 05000272/LER-1981-108, Forwards LER 81-108/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-115-01, /01T-0:on 811125,svc Water Found Leaking at 0.5 Gpm from Second from Top Primary Cooling Coil on Containment Fan Coil Unit (Cfcu).Cfcu Declared Inoperable on 811127. Caused by Equipment Failure.Coil Repaired ‎ (← links)
  • 05000311/LER-1981-115, Forwards LER 81-115/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-109-01, /01T-0:on 811128,svc Water Found Leaking from Fourth from Bottom Cooling Coil on Containment Fan Coil Unit Cfcu at 0.8 Gpm.Cfcu Declared Inoperable on 811129.Caused by Coil Failure.Coil Repaired W/Metal Filler ‎ (← links)
  • 05000272/LER-1981-109, Forwards LER 81-109/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-118-03, /03L-0:on 811110,when Steel Plug Was Being Removed to Install Thermocouple on Svc Water Header,Plug Sheared Off Resulting in Leak of 90 Psi Svc Water.Caused by Removal of Plug from Penetration W/O Thermocouple Well ‎ (← links)
  • 05000311/LER-1981-118, Forwards LER 81-118/-3L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-117-03, /03L-0:on 811110,svc Water Inlet Valve Position Indicator for One Containment Fan Coil Unit Indicated Not Open & Low Water Flow for Another.First Caused by Defective Limit Switch & Second by Silt in Flow Transmitter Line ‎ (← links)
  • 05000311/LER-1981-117, Forwards LER 81-117/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-112-03, /03L-0:on 811106,auxiliary Feed Storage Tank Afst Found Below Min Level.Caused by Use of Afst to Feed Steam Generators Following Reactor Trip.Demineralized Water Makeup Initiated ‎ (← links)
  • 05000272/LER-1981-112, Forwards LER 81-112/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-116-03, /03L-0:on 811107,charging Pump Tripped Electrically on long-term Overcurrent During Operation & Attempted Restart.Caused by Broken Impeller Shaft.Rotating Assembly Replaced ‎ (← links)
  • 05000272/LER-1981-113-03, /03L-0:on 811108,steam Generator Level 14 Channel 3 Failed High.Caused by Dual Comparator Failure.Comparator Replaced ‎ (← links)
  • 05000272/LER-1981-111-03, /03L-0:on 811106,containment Fan Coil Unit 11 Failed to Start in Low Speed Mode After Safety Injection Signal.Caused by Failure of Automatic Trip Shutter on Low Speed Circuit Breaker to Close When Breaker Racked in ‎ (← links)
  • 05000272/LER-1981-113, Forwards LER 81-113/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-116, Forwards LER 81-116/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-111, Forwards LER 81-111/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-114-01, /01T-0:on 811119,reactor Coolant Leakage Exceeded Tech Spec Limit.Caused by Svc Water Leaking from Pinhole in Containment Fan Coil Unit 22 Motor Cooler.Motor Cooler Replaced ‎ (← links)
  • 05000311/LER-1981-114, Forwards LER 81-114/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-105-01, /01T-0:on 811117,svc Water Leak of Approx 1 Gpm Observed in Containment Fan Coil Unit 12.Caused by Hole in Upper Primary Cooling Coil.Coil Repaired by Brazing ‎ (← links)
  • 05000272/LER-1981-105, Forwards LER 81-105/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-106, Forwards LER 81-106/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-113-31, /03L-0:on 811028,control Console Log Reading for Containment Spray Additive Tank Level Found Out of Spec & Declared Inoperable.Caused by Personnel Failure to Detect Instrument Fluctuation.Tank Filled & Level Adjusted ‎ (← links)
  • 05000311/LER-1981-113, Forwards LER 81-113/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-112-03, /03L-0:on 811028,100-ft Elevation Containment Airlock Found Inoperable.Caused by Inside Door Seal Falling Out of Groove.Seal Replaced ‎ (← links)
  • 05000311/LER-1981-112, Forwards LER 81-112/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-069-03, /03L-0:on 810721,steam Generator 24 Steam Flow Channel 1 Discovered Reading High & Declared Inoperable. Caused by Erroneous Signal Due to High Multiplier 2FM-542B on Low End.Multiplier Adjusted & Channel Returned to Svc ‎ (← links)
  • 05000311/LER-1981-069, Forwards LER 81-069/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-086-01, /01T-0:on 810903,after Engineering Review,Number 21 Steam Flow Channels 1 & 2 Found Out of Calibr.Caused by Excessive Carryover from Steam Generator 21.Flow Channel 1 Recalibr & Returned to Svc ‎ (← links)
  • 05000311/LER-1981-086, Forwards LER 81-086/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-073-03, /03L-0:on 810722,control Operator Noticed Channel 1 of Containment Pressure hi-hi Indicators Spiking.Caused by Steam Leak from Nearby Steam Generator Blowdown Line Blowing on Containment hi-hi Channel 1 Transmitter ‎ (← links)
  • 05000272/LER-1981-073, Forwards LER 81-073/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-104-01, /01X-2:on 811006,penetration Canister 2-41 Found Unprotected from Potential Fire Damage.Caused by Neglect of Wrapping Requirement by Contractor Personnel.Fire Watches Posted & Required Wrappings Properly Accomplished ‎ (← links)
  • 05000311/LER-1981-104, Forwards LER 81-104/01X-02.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-102-03, /03L-0:on 811021,discovered Inoperable Power Operated Relief Valve in Violation of Amend 39 to Tech Specs.Amend 39 Posted & Power Removed from Valves ‎ (← links)
  • 05000272/LER-1981-102, Forwards LER 81-102/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-104-03, /03L-0:on 811026,steam Generator 13 Steam Flow Channel 1 Discovered Indicating High.Caused by Transmitter Being Out of Calibr.Transmitter Recalibr ‎ (← links)
  • 05000272/LER-1981-104, Forwards LER 81-104/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-097-01, /01T-0:on 811106,boron Injection Tank Inlet Valves 1SJ4 & 1SJ5 Failed to Open Fully.Caused by Boron Buildup Around Stem.Boron Removed & Torque Settings Increased ‎ (← links)
  • 05000311/LER-1981-111-03, /03L-0:on 811022,during Boration Process, Pressurizer Pressure Dropped Below DNB Parameter for 5 Minutes.Caused by Injection of Excessive Amount of Boron in Rcs.Personnel Counseled Re Correct Procedure ‎ (← links)
  • 05000272/LER-1981-096-01, /01T-0:on 811107,during Insp,Svc Water Discovered Leaking from Containment Fan Coil Units 11 & 15.Cause Not Stated.Leak on Unit 15 Repaired W/Belzona Metal Filler. Coil on Unit 11 Isolated by Installing Blank Flange Insert ‎ (← links)
  • 05000311/LER-1981-111, Forwards LER 81-111/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-096, Forwards LER 81-096/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-110-03, /03L-0:on 811026,while Attempting to Place Containment Fan Coil Units 21 & 23 in Low Speed Accident Mode,Units Declared Inoperable Due to Low Flow Indication. Caused by Silt in Transmitter Sensing Lines ‎ (← links)
  • 05000311/LER-1981-110, Forwards LER 81-110/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-101-03, /03L-0:on 811021,while Cycling Pressurizer Auxiliary Spray Line Isolation Valve 1CV75 During Surveillance,Pressure in Pressurizer Dropped Below 2205 Psia.Caused by Incorrect Valve Liftoff Pressure Setting ‎ (← links)
  • 05000272/LER-1981-099-03, /03L-0:on 811022,containment Fan Coil Unit 12 Was Indicating Low Flow in Low Speed Mode.Caused by Flow Transmitter Plugged W/Silt.Transmitter Blown Down & Tested Satisfactorily ‎ (← links)
  • 05000272/LER-1981-101, Forwards LER 81-101/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-099, Forwards LER 81-099/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-100-03, /03L-0:on 811019,during Startup Preparation, Neutron Level & Startup Rate Meters for Intermediate Range Nuclear Instrumentation Channel 1 Were Spiking from 0 to Full Scale.Caused by Failed Power Supply ‎ (← links)
  • 05000272/LER-1981-100, Forwards LER 81-100/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-103-03, /03L-0:on 811025,intermediate Detector N-36 Failed.Caused by Failure of Detector High Voltage Power Supply.Power Supply Replaced ‎ (← links)
  • 05000272/LER-1981-103, Forwards LER 81-103/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-094-01, /01T-0:on 811028,containment for Coil Unit 14 Declared Inoperable.Caused by 0.8 Gpm Leak in Fifth & Sixth Primary Coils.Leaks Repaired W/Belzona Metal Filler.Cooler to Be Replaced ‎ (← links)
  • 05000272/LER-1981-094, Forwards LER 81-094/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-098-03, /03L-0:on 811017 & 29,following Reactor Trips, Auxiliary Feed Storage Tank Dropped Below Min Required Vol & Was Declared Inoperable.Caused by Steam Generator Makeup.Vol Restored W/Transfer of Demineralized Water ‎ (← links)
  • 05000272/LER-1981-098, Forwards LER 81-098/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-095-03, /03L-0:on 811008,auxiliary Alarm Annunciator Was Printing Erroneous Alarms Rendering Containment Sump Level Monitoring Sys Inoperable.Caused by Loose Printed Circuit Card in Connector.Card Replaced ‎ (← links)
  • 05000272/LER-1981-095, Forwards LER 81-095/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-108-03, /03L-0:on 811009,individual Rod Position Indicators for Rods 2C1 & 2D2 Disagreed W/Control Rod Bank Demand Indicator by Greater than 12 Steps.Caused by Failed Operational Amplifier.Amplifier Replaced ‎ (← links)
  • 05000311/LER-1981-108, Forwards LER 81-108/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-109-03, /03L-0:on 811006,while Performing Design Change Package Mods,Vitro Labs Representative Allowed Solder to Fall Into 15-volt Power Supply for 2A Safeguards Equipment Control.Caused by Personnel Error.Power Supply Replaced ‎ (← links)
  • 05000311/LER-1981-109, Forwards LER 81-109/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-107-03, /03L-0:on 811004,diesel 2B Tripped on High Water Jacket Temp.Caused by Cooler Discharge Valve 22SW42 Being in Fully Closed Position Due to Controller Being Set to Zero. Controller Valve Properly Set & Tested ‎ (← links)
  • 05000311/LER-1981-107, Forwards LER 81-107/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-101-03, /03X-1:on 810906,due to Momentary Loss of Power & Failure of Backup Power Pack,Radiation Monitor 2R12A Setpoints,Warning,Failure & Alarm All Failed High.Caused by Failure of Batteries in Backup Power Pack ‎ (← links)
  • 05000311/LER-1981-101, Forwards LER 81-101/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-093-03, /03L-0:on 810930,fire Pump Fuel Pump Shaft Had Broken Rendering Fire Pump 1 Inoperable.Engine Disassembled & Gears Inspected.Fuel Pump Removed.Engine & Pump Reconnected & New Fuel Pump Installed ‎ (← links)
  • 05000272/LER-1981-093, Forwards LER 81-093/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-088-03, /03L-0:on 810918,battery Cable Clamp for Fire Pump 2 Found Cracked & Arcing.Caused by Equipment Failure. Battery Clamp Split & Nipple Vibrated Loose in Casing.Clamp Replaced & Nipple Removed,Reinstalled & Properly Tightened ‎ (← links)
  • 05000272/LER-1981-088, Forwards LER 81-088/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-105-03, /03L-0:on 810918,steam Generator 21 Level Channel 2 Found Reading Low.Caused by Transmitter Being Out of Calibr.Transmitter Recalibr & Tested Satisfactorily ‎ (← links)
  • 05000311/LER-1981-105, Forwards LER 81-105/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-089-03, /03L-0:on 810918,determined That Leakage Rate on 100-ft Elevation Containment Air Lock Exceeded Limit.Caused by Damage to Inner & Outer Door Seals.Seals Were Replaced & Leak Rate Test Performed Satisfactorily ‎ (← links)
  • 05000272/LER-1981-089, Forwards LER 81-089/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-103-03, /03L-0:on 810918,low Svc Water Flow Indication Noted on Containment Fan Coil Unit 24.Caused by Flow Transmitter Being Plugged W/Silt.Transmitter Sensing Lines Blown Down to Remove Silt & Tested Satisfactorily ‎ (← links)
  • 05000311/LER-1981-103, Forwards LER 81-103/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-087-04, /04L-0:on 810908,sea Turtles Removed from Circulating Water Sys Intake Trash Bars.Caused by Stressed Turtles Becoming Impinged on Bars.Trash Bars Will Be Observed & Cleaned When Necessary ‎ (← links)
  • 05000272/LER-1981-087, Forwards LER 81-087/04L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-102-03, /03L-0:on 810915,low Reading Discovered on Reactor Coolant Loop Flow Channel 2.Caused by Failure of Flow Transmitter & Equalizing Valve Assembly.Channel Placed in Tripped Condition.Transmitter & Assembly Replaced ‎ (← links)
  • 05000311/LER-1981-102, Forwards LER 81-102/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-099-03, /03L-0:on 810903,low Svc Water Indication Noted on Containment Fan Coil Unit 23 in Slow Speed Mode.Caused by Silt in Transmitter.Transmitter Blown Down & Valve Readjusted ‎ (← links)
  • 05000311/LER-1981-099, Forwards LER 81-099/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-086-03, /03L-0:on 810909,containment Fan Coil Unit 11 Indicated No Svc Water Flow & Was Declared Inoperable.Caused by Silt Plugging Transmitter.Flow Transmitter Blown Down ‎ (← links)
  • 05000272/LER-1981-086, Forwards LER 81-086/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-085-03, /03L-0:on 810902,charging Pump Declared Inoperable After Operator Noticed Svc Water Emanating from Leak on Oil Cooler.Caused by Leaks in Couplings in Svc Water Piping.Couplings Replaced ‎ (← links)
  • 05000272/LER-1981-085, Forwards LER 81-085/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-100-03, /03L-0:on 810906,low Reading Indicated on Number 22 Reactor Coolant Loop Flow Channel 2.Caused by Failure of Flow Transmitter.Transmitter Replaced,Channel Tested Satisfactorily & Declared Operable ‎ (← links)
  • 05000311/LER-1981-100, Forwards LER 81-100/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-084-01, /01T-0:on 810928,during Routine Containment Insp, Svc Water Discovered Leaking from Bottom Primary Coil on Number 11 Containment Fan Coil Unit.Caused by Primary Coil Failure.Leaking Coil Blank Flanged Off ‎ (← links)
  • 05000272/LER-1981-084, Forwards LER 81-084/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-098-03, /03L-0:on 810901,individual Rod Position Indicator (Irpi) & Control Rod Bank Demand Indicator for Rods 1D4,1D3, 2D2 & 2D3 Found to Be in Disagreement Rendering Irpis Inoperable.Caused by Irpis Drifting Out of Calibr ‎ (← links)
  • 05000311/LER-1981-098, Forwards LER 81-098/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-097-03, /03L-0:on 810901,operator Found Individual Rod Position & Control Rod Bank Indicator for Rod 2D2 in Disagreement by Greater than 12 Steps.Caused by Calibr Drift of Position Indicator.Position Indicator Recalibr ‎ (← links)
  • 05000311/LER-1981-097, Forwards LER 81-097/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-094-01, /01T-0:on 810918,during Routine Containment Insp, Operator Found Svc Water Leaking from Primary Coil on Containment Fan Coil 23 at Approx 0.5 Gpm.Caused by Primary Coil Failure.Cooling Coil Blank Flanged Off ‎ (← links)
  • 05000311/LER-1981-094, Forwards LER 81-094/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-092-03, /03L-0:on 810823,channel 1 Pressurizer Level Was Reading 4% Lower than Other Two Channels.Caused by Channel 1 Transmitter Drifting Out of Calibr.Channel 1 Transmitter 2LT-549 Recalibr,Tested & Returned to Svc ‎ (← links)
  • 05000311/LER-1981-092, Forwards LER 81-092/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-072, Forwards LER 81-072/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-073, Forwards LER 81-073/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-074, Forwards LER 81-074/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-067-03, /03L-0:on 810720,diesel Fuel Transfer Pump Would Not Start in Regular Mode & Was Declared Inoperable.Caused by Sticking 11FTR Relay.Relay Cleaned ‎ (← links)
  • 05000272/LER-1981-071-03, /03L-0:on 810720,containment Fan Coil Unit Declared Inoperable.No Svc Water Flow Noted at High Speed & Insufficient Flow at Low Speed.Caused by Equipment Failure. Flow Transmitter FA-3543Z-1 Sensing Line Blown Clear ‎ (← links)
  • 05000272/LER-1981-071, Forwards LER 81-071/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-066, Forwards LER 81-066/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-068-03, /03L-0:on 810720,individual Rod Position Indicator & Control Rod Blank Demand Indicator for Rod 2D3 Found in Disagreement by Greater than Plus or Minus 12 Steps.Caused by Equipment Failure.Equipment Recalibr & Returned to Sv ‎ (← links)
  • 05000311/LER-1981-068, Forwards LER 81-068/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-064-01, /01T-0:on 810806 & 07,svc Water Leak Discovered on Containment Fan Unit 22.First Leak Caused by Loose Body to Bonnet Studs on Valve 22SW65.Second Caused by Weld Joint ‎ (← links)
  • 05000311/LER-1981-064, Forwards LER 81-064/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-070-03, /03L-0:on 810708,during Routine Calibr Check, Hydrogen Analyzer 12 Declared Inoperable.Caused by Drifting Out of Calibr.Analyzer Recalibr,Tested & Returned to Svc ‎ (← links)
  • 05000272/LER-1981-070, Forwards LER 81-070/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-062-03, /03L-0:on 810713,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Cards Replaced.Annunciator Returned to Svc & Tested Successfully ‎ (← links)
  • 05000311/LER-1981-062, Forwards LER 81-062/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-038, Forwards LER 81-038/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-068-03, /03L-0:on 810626,fuel Handling Bldg Alarm on Fire Protection Annunciator Illuminated.Caused by Fire Alarm Pull Box in Fuel Handling Bldg Not Reset Properly.Fire Watch Established & Pull Box Reset ‎ (← links)
  • 05000272/LER-1981-068, Forwards LER 81-068/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-066-03, /03L-0:on 810628,while Attempting to Place Containment Fan Coil Unit 13 in Svc,High & Low Speed Svc Water Flow Did Not Show Sufficient Flow to Meet Tech Specs. Caused by Transmitter 1FA-35412-1 Out of Calibr ‎ (← links)
  • 05000272/LER-1981-066, Forwards LER 81-066/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-052-03, /03L-0:on 810627,radiation Monitoring Sys Suction Pump for Unit 2 Containment Tripped Thermal Overloads.Caused by Excessively High Suction Vacuum Setting.Thermal Overloads & Vacuum Setting Reset ‎ (← links)
  • 05000311/LER-1981-052, Forwards LER 81-052/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-051-04, /04X-1:on 810501,dead Shortnosed Sturgeon Removed from 12A Circulating Water Intake Trash Bar.Fish Assumed to Be Dead Prior to Impingement ‎ (← links)
  • 05000311/LER-1981-048-03, /03L-0:on 810625,during Startup,Rod 25A2 Individual Rod Position Indicator & Shutdown Rod Bank Demand Indicator Were Outside Required Agreement.Caused by Individual Rod Position Indicator Out of Calibr ‎ (← links)
  • 05000311/LER-1981-048, Forwards LER 81-048/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-065-03, /03L-0:on 810624,while Attempting to Place Containment Fan Coil Unit 15 in Svc,Personnel Observed No Svc Water Flow Indication.Caused by Inlet Flow Transmitter 1FA-3176Z-1 Out of Calibr.Transmitter Replaced ‎ (← links)
  • 05000272/LER-1981-065, Forwards LER 81-065/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-051-03, /03L-0:on 810627,steam Generator 22 Tripped.Safety Injection Caused Dilution of Boron Injection Tank.Tank Was Borated Until Concentration within Allowable Limits ‎ (← links)
  • 05000311/LER-1981-051, Forwards LER 81-051/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-067-03, /03L-0:on 810703,svc Water Flow to Containment Fan Coil Unit 13 Was Erratic in High & Low Speeds.Caused by Missing Actuator Feedback Cotter Pin on Svc Water Flow Control Valve.Pin Replaced & Setpoints Adjusted ‎ (← links)
  • 05000311/LER-1981-049-03, /03L-0:on 810626,during Startup,Rod Position Indicators for Rods 1SB4,2SB2 & 2SB4 Were in Disagreement W/ Shutdown Rod Bank Indicators.Caused by Drift in Calibr of Indicators & Signal Conditioning Modules.Items Recalibr ‎ (← links)
  • 05000272/LER-1981-067, Forwards LER 81-067/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-049, Forwards LER 81-049/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-045-99, /99X-0:on 810423,inadvertent Safety Injection Occurred During Unit Cooldown.Caused by Personnel Error in Decreasing Automatic Setpoint.Personnel Counseled on Requirements to Follow Procedures ‎ (← links)
  • 05000311/LER-1981-045, Forwards LER 81-045/99X-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-046-03, /03L-0:on 810622,individual Rod Position Indicator & Control Rod Bank Demand Indicator for Rod 1B4 Was Found Exceeding Agreement Limits.Caused by Calibr Drift of Signal Conditioning Module.Module Recalibr ‎ (← links)
  • 05000311/LER-1981-046, Forwards LER 81-046/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-061-03, /03L-0:on 810616,pressurizer Over Protection Sys Channel 1 Isolation Valve 1PR6 Was Closed to Isolate Leakage Through 1PR1.Caused by Steam Cutting of Valve Cage.Valve Cage Replaced ‎ (← links)
  • 05000272/LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-063-03, /03L-0:on 810621,control Rod Bank Demand Indicator & Individual Rod Position Indicators for Control Rods 2D1 & 2D5 Were Found to Exceed Agreement Limits.Caused by Instrument Drift.Rod Position Indicators Recalibr ‎ (← links)
  • 05000272/LER-1981-063, Forwards LER 81-063/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-047-03, /03L-0:on 810623,rod Position Indicator Found in Disagreement W/Shutdown Rod Bank Demand Indicator.Caused by Failure of Amplifier Board in Indicator.Amplifier Board Replaced & Indicator Recalibr ‎ (← links)
  • 05000311/LER-1981-047, Forwards LER 81-047/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-097, Supplemental LER 81-097/01X-1:on 811106,during Inadvertent Safety Injection Actuation,Boron Injection Tank Inlet Valves 1SJ4 & 1SJ5 Failed to Open Fully.Caused by Boron Buildup. Stems Cleaned.Design Change Implemented ‎ (← links)
  • 05000272/LER-1981-090-03, /03L-0:on 810922,svc Water Found Leaking from Drain Valve 12SW124 Between Valve & Component Cooling Water Heat Exchanger 12.Caused by Crack in Dissimilar Metal Weld Between Valve Body & Carbon Steel Pipe.Pipe Plugged ‎ (← links)
  • 05000272/LER-1981-090, Forwards LER 81-090/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-091-03, /03L-0:on 810929 & 1001,Channel 3 Pressurizer Level Read Higher than Other Channels.Caused by Transmitter Drifting Out of Calibr.Transmitter Recalibr ‎ (← links)
  • 05000272/LER-1981-091, Forwards LER 81-091/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-096-03, /03L-0:on 810829,steam Generator Steam Flow Channel 2 Failed Low.Caused by Failure of Steam Flow Transmitter.Transmitter Removed,Replaced & Calibr ‎ (← links)
  • 05000311/LER-1981-096, Forwards LER 81-096/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-085-01, /01T-0:on 810901,redundant Power Cable,Conduit 2BDD-B(5inch) Discovered Not to Have Fire Wrap Protection. Caused by Personnel Inadvertent Oversight.Complete Review of Design Change Conducted ‎ (← links)
  • 05000311/LER-1981-085, Forwards LER 81-085/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-076-01, /01T-0:on 810902,NRC Notified of Svc Water Leaking from Secondary Coil on Containment Fan Coil Unit (Cfcu) 14, Per IE Bulletin 80-24.CFCU Removed from Svc & Declared Inoperable.Caused by Secondary Coil Failure ‎ (← links)
  • 05000272/LER-1981-078-01, /01T-0:on 810903,during Surveillance Test,Svc Water Discovered Leaking from Top Secondary Coil 11 on Containment Fan Coil Unit.Caused by Failure of Secondary Coil.Coil Repaired & Returned to Svc ‎ (← links)
  • 05000272/LER-1981-078, Forwards LER 81-078/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-076, Forwards LER 81-076/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-089-03, /03L-0:on 810817,discovered Linkage Between Trip Mechanism & Trip Valve Loose During Wear & Alignment Check on Auxiliary Feedwater Pump 23.Caused by Bolts Which Became Loose Through Normal Vibration.Bolts Tightened ‎ (← links)
  • 05000272/LER-1981-077-01, /01T-0:on 810902,operator Discovered Svc Water Leaking from Secondary Cooling Coil on Containment Fan Coil Unit 11.Caused by Pinhole Leak in Secondary Coil.Leak Brazed Over ‎ (← links)
  • 05000272/LER-1981-074-01, /01T-0:on 810826,operator Discovered Svc Water Leaking from Bottom Secondary Coil on Containment Fan Coil Unit 11.Caused by Secondary Coil Failure.Coil Blank Flanged Off ‎ (← links)
  • 05000311/LER-1981-088-03, /03L-0:on 810814,prelubricating Oil Pump Motor on 2C Diesel Was Removed for Repair & Generator Declared Inoperable.Caused by Lack of Lubrication for More than 12-h. Prelubrication Pump Rewound & Reinstalled ‎ (← links)
  • 05000272/LER-1981-074, Forwards LER 81-074/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-077, Forwards LER 81-077/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-088, Forwards LER 81-088/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-087-03, /03L-0:on 810812,battery Charger 2B1 Declared Inoperable Due to Failure of Charger to Pick Up 28-volt Dc Electrical Load.Caused by Actuation of High Voltage cut-out. Backup Battery Charger Connected & Voltage cut-out Reset ‎ (← links)
  • 05000311/LER-1981-087, Forwards LER 81-087/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-083-03, /03L-0:on 810808 & 09,leakage Rate Exceeded Design Pressure Tech Spec Limit During Sp on 100-ft Elevation Containment Air Lock.Caused by Outer Door Seal Out of Channel & Cam Roller Off Track.Seal Repaired ‎ (← links)
  • 05000311/LER-1981-083, Forwards LER 81-083/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-084-03, /03L-0:on 810810,leak Rate Calculation Indicated RCS Leak to Reactor Coolant Drain Tank.Caused by Packing Leakage on Valve 22RC20.Valve Repacked & Leak Rate Reduced ‎ (← links)
  • 05000311/LER-1981-084, Forwards LER 81-084/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-075-03, /03L-0:on 810809,containment Fan Coil Unit 13 Declared Inoperable Due to No Svc Water Flow Indication. Caused by Equipment Failure.Flow Transmiter FA-3543Z-1 Sensing Line Blown Clear & Transmitter Recalibr ‎ (← links)
  • 05000272/LER-1981-075, Forwards LER 81-075/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-081-03, /03L-0:on 810814,diesel Generator 2A Started Late During Sp.Caused by Turbo Boost Air Reservoir Down in Pressure Due to Sticking Hydraulic Unloader Valve on Air Compressor,Preventing Compressor from Charging Reservoir ‎ (← links)
  • 05000311/LER-1981-081, Forwards LER 81-081/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-074-03, /03X-1:on 810725,temp Average Was Less than Required Lower Limit of 541 F During Controlled Rapid Power Reduction.Caused by Operational Transient.Temp Average Restored ‎ (← links)
  • 05000311/LER-1981-073-03, /03X-1:on 810724,operator Noticed That Battery Charger 2C1 Had Tripped.Upon Resetting,Breaker Tripped Again.Caused by Difference Between Battery Voltage & Battery Charger Voltage Setting.Personnel Instructed ‎ (← links)
  • 05000311/LER-1981-072-03, /03X-1:on 810723,discovered That Logic a Switch in Position 1 Did Not Function Properly in Mode Blocks Inhibit & Not Inhibited.Caused by Failure of Universal Board 0156. Board Replaced ‎ (← links)
  • 05000311/LER-1981-071-03, /03X-1:on 810723,24 & 25,constant Speed Drive 22 Breaker Tripped from Unidentified Cause.Investigation Underway.Constant Speed Drive 21 Manually Closed ‎ (← links)
  • 05000311/LER-1981-082-99, /99X-0:on 810603 & 27,inadvertent Safety Injection Occurred Following Turbine/Reactor Trip.Caused by High Steam Line Flow Conditions Set Up by Steam Driven Auxiliary Feedwater Pump Speed Oscillations ‎ (← links)
  • 05000311/LER-1981-082, Forwards LER 81-082/99X-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-079-03, /03L-0:on 810803,constant Speed Drive Breaker 22 Tripped.Cause Undetermined.Constant Speed Drive Breaker 21 Manually Closed.Cause Under Investigation ‎ (← links)
  • 05000311/LER-1981-079, Forwards LER 81-079/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-080-03, /03L-0:on 810807,individual Rod Position Indicator & Control Rod Bank Demand Indicator for Rod 2D2 Were in Disagreement.Caused by Calibr Drift for Signal Conditioning Module.Module Recalibr ‎ (← links)
  • 05000311/LER-1981-080, Forwards LER 81-080/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-070, Replacement LER 81-070/03L-0:on 810720,diesel Generator 2B Declared Inoperable in Order to Locate Ground in Diesel Annunciator Panel.Caused by Need to Perform Surveillance Procedure.Ground Located & Corrected ‎ (← links)
  • 05000311/LER-1981-067, Replacement LER 81-067/03L-0:on 810720,diesel Fuel Transfer Pump 21 Would Not Start in Regular Mode.Caused by Sticking Relay 11FTR.Relay Cleaned ‎ (← links)
  • 05000272/LER-1981-072-01, /01T-0:on 810813,svc Water Leaks Were Discovered in Containment Fan Coil Units 12 & 14 Cooling Coils.Caused by Pin Point Hole on Unit 14 Fourth Secondary Cooling Coil & Leak in Unit 12 Primary Coil ‎ (← links)
  • 05000272/LER-1981-072, Forwards LER 81-072/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-078-03, /03L-0:on 810727,individual Rod Position Indicator & Control Rod Bank Demand Indicator for Rod 2C1 Were in Disagreement.Caused by Calibr Drift of Individual Rod Position Indicator.Indicator Recalibr ‎ (← links)
  • 05000311/LER-1981-076-03, /03L-0:on 810727,Number 24 Reactor Coolant Flow Channel 2 Noted Reading Higher than Other Two Channels. Caused by Failure of Transmitter 2FT-445.Transmitter Replaced & Returned to Svc ‎ (← links)
  • 05000311/LER-1981-078, Forwards LER 81-078/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-076, Forwards LER 81-076/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-075-03, /03L-0:on 810727,containment Atmosphere Particulate Radioactivity Monitoring Detector 2R11A Found to Be Out of Spec & Declared Inoperable.Caused by Detector Being one-half Inch Back from Proper Position in Lead Pig ‎ (← links)
  • 05000311/LER-1981-075, Forwards LER 81-075/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-077-03, /03L-0:on 810729,Number 22 Reactor Coolant Flow Channel 2 Noted Reading Higher than Other Two Channels. Caused by Failure of Flow Transmitter 2FT-425.Transmitter Replaced & Returned to Svc ‎ (← links)
  • 05000311/LER-1981-077, Forwards LER 81-077/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-063-03, /03L-0:on 810714,steam Generator 22 Feed Flow Channel 2 & Steam Generator 24 Steam Flow Channel 2 Declared Inoperable Due to Erratic Operation.Caused by Transmitter Sensing Line Leaks at Two Instrument Tubing Fittings ‎ (← links)
  • 05000311/LER-1981-063, Forwards LER 81-063/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-065-03, /03L-0:on 810716,operator Noticed That Steam Generator 23 Feed Flow Channel 2 Had Failed Low & Was Declared Inoperable.Caused by Equipment Failure.Feed Flow Channel 2 Meter Was Replaced W/Spare ‎ (← links)
  • 05000311/LER-1981-065, Forwards LER 81-065/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-064-01, /01T-0:on 810715,during Routine Insp,Svc Water Leak Was Discovered on Containment Fan Coil Unit.Caused by Cracked Weld Upstream of Valve 15SW65.Dissimilar Metal Piping Changed to All Stainless Steel ‎ (← links)
  • 05000272/LER-1981-064, Forwards LER 81-064/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-061-03, /03L-0:on 810713,disagreement Between Individual Rod Position Indicators for Rods 1SB2 & 2SB2 & Shutdown Rod Bank Demand Indicators Exceeded Tech Spec.Caused by Failed Operational Amplifiers.Amplifiers Replaced ‎ (← links)
  • 05000311/LER-1981-061, Forwards LER 81-061/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-059-03, /03L-0:on 810709,channel 2 of Pressurizer Overpressure Protection Sys Declared Inoperable Due to Previous Closure of 2PR7 to Isolate 2PR2.Caused by Leakage of 2PR2 to Relief Tank.Valve Will Be Repaired During Outage ‎ (← links)
  • 05000311/LER-1981-059, Forwards LER 81-059/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-055-03, /03L-0:on 810716,containment Fan Coil Unit 21 Declared Inoperable After Low Flow Alarm Received.Caused by Inlet Transmitter Being Clogged W/Silt.Both Legs Blown Down & Equalizer Valve & Vent Valves Flushed ‎ (← links)
  • 05000311/LER-1981-055, Forwards LER 81-055/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-050, Has Been Cancelled ‎ (← links)
  • 05000311/LER-1981-058-03, /03L-0:on 810709,boric Acid Storage Tank Level Decreased to Less than Spec Min.Caused by Constant Demand for Makeup to RCS to Compensate for Changes to RCS Specific Vol.Boric Acid Batching Initiated ‎ (← links)
  • 05000311/LER-1981-058, Forwards LER 81-058/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-057-03, /03L-0:on 810708,auxiliary Feed Storage Tank Level Dropped Below Required Level.Caused by Lack of Demineralized Water Available for Makeup.Personnel Counseled & Tank Restored to Required Level ‎ (← links)
  • 05000311/LER-1981-057, Forwards LER 81-057/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-060-03, /03L-0:on 810709,reactor Coolant Pump 21 Removed from Svc & Channel 1 Low Flow Signal Did Not Actuate Trip Signal.Caused by Failure of Channel 1 Comparator.Comparator Calibr to Specs ‎ (← links)
  • 05000311/LER-1981-060, Forwards LER 81-060/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-056-03, /03L-0:on 810708,auxiliary Alarm Annunciator Was Malfunctioning.Caused by Failure of Alarm Input Cards.Series of RA848A Alarm Input Cards Replaced ‎ (← links)
  • 05000311/LER-1981-056, Forwards LER 81-056/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-069-03, /03L-0:on 810703,while Adjusting Svc Water Flow Through Component Cooling Water Heat Exchanger,Operator Found Flow Control Valve 12SW127 Would Not Open.Caused by Marred Sealing Surface of Valve Tube Bundle.Bundle Cut Back ‎ (← links)
  • 05000272/LER-1981-069, Forwards LER 81-069/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-053-03, /03L-0:on 810701,following Outage,Containment Integrity Established W/O Performing Required Surveillance Procedure.Caused by Personnel Error.Procedure Completed & Personnel Counseled ‎ (← links)
  • 05000311/LER-1981-053, Forwards LER 81-053/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-054-03, /03L-0:on 810702,svc Water Flow Rate of Containment Fan Coil Unit 21 Was Observed Lower than Required.Caused by Incorrectly Adjusted Setpoint.Setpoint Readjusted ‎ (← links)
  • 05000311/LER-1981-054, Forwards LER 81-054/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-039-03, /03L-0:on 810608,determined post-accident Monitoring Instrumentation Had Not Been Completed Since 810422.Caused by Personnel Failure to Enter New Procedure Info Notification Sys.Personnel Counseled ‎ (← links)
  • 05000311/LER-1981-043, Forwards LER 81-043/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-039, Forwards LER 81-039/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-042-03, /03L-0:on 810609,RCS Allowed to Decrease to Less than 541 F.Caused by Overfeeding Steam Generators & Inserting Control Rods.Control Rods Withdrawn & Personnel Counseled on Plant Procedures & Practices ‎ (← links)
  • 05000311/LER-1981-041-03, /03L-0:on 810612,leakage of 13 Gpm Into Pressurizer Relief Tank Identified.Caused by RHR Suction Piping Relief Valve (2RH3) Actuating at Less than Design Lift Setting & Failing to Reseat.Lift Setting Readjusted ‎ (← links)
  • 05000311/LER-1981-042, Forwards LER 81-042/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-041, Forwards LER 81-041/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-037-03, /03L-0:on 810608,paper Filter Drive for Containment Particulate Channel 2R11A Failed.Caused by Failure of Racket Arm Link on Filter Drive Mechanism.Link Replaced ‎ (← links)
  • 05000311/LER-1981-037, Forwards LER 81-037/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-040-03, /03L-0:on 810609,investigation Revealed Leak in RCS Chemical & Vol Control Sys at Weld for Vent Valve 2CV396.Caused by Excess Vibration & Pressure Transient.Valve Removed & Vent Line Capped ‎ (← links)
  • 05000311/LER-1981-040, Forwards LER 81-040/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-062-03, /03L-0:on 810621,following RHR Sys 11 Component Maint,One Emergency Core Cooling Subsystem Rendered Inoperable & Caused Refueling Water Storage Tank to Drain Below Limit.Caused by Improper Realignment of Three Valves ‎ (← links)
  • 05000272/LER-1981-062, Forwards LER 81-062/03l-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-044-04, /04T:on 810707,contamination of Onsite Storage Area Ten Times Normal Background Reading Discovered Where Old Spent Fuel Storage Racks Had Been Stored.Caused by Rinsing of Racks & High Ambient Temps ‎ (← links)
  • 05000311/LER-1981-044, Forwards LER 81-044/04T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-035-01, /01T-0:on 810616,during Repair of Valve Bonnet Leak,Check Valves 21MS46 & 23MS46 Found to Be Internally Damaged.Cause of Damage Being Investigated.Check Valves Repaired ‎ (← links)
  • 05000311/LER-1981-035, Forwards LER 81-035/01T-0 ‎ (← links)
  • 05000272/LER-1981-059-01, /01T-0:on 810616,maint Insp of Auxiliary Feed Pump Steam Supply Check Valves Revealed Damage Similar to That Found in Unit 2 Valves.Cause Under Investigation.Valves Repaired & Complete Parts Ordered ‎ (← links)
  • 05000311/LER-1981-031-03, /03L-0:on 810601,auxiliary Alarm Annunciator Declared Inoperable Due to Erratic Operation.Caused by Ground in Annunciator.Ground Isolated.Annunciator Tested Satisfactorily & Returned to Operable Status ‎ (← links)
  • 05000311/LER-1981-031, Forwards LER 81-031/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-032-03, /03L-0:on 810603,boron Injection Tank Concentration Decreased Below Tech Spec Limits.Caused by Safety Injection Initiated by High Streamline Flow from High Level in Steam Generator 22.Tank Borated ‎ (← links)
  • 05000311/LER-1981-032, Forwards LER 81-032/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-034-03, /03L-0:on 810603,during Refill of Boron Injection Tank,Samples Indicated Concentration Less That 20,000 Ppm. Caused by Boron Tank Not Completely Drained Prior to Refill.Tanks Borated to Between 20,000 & 22,500 Ppm ‎ (← links)
  • 05000311/LER-1981-034, Forwards LER 81-034/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-030-03, /03L-0:on 810530,during Startup Operations, Auxiliary Feed Pump 21 Outboard Bearing Went Into High Temp Alarm & Was Removed from Svc.Caused by Failure of Outboard Bearing & Seal Assembly.Components Replaced ‎ (← links)
  • 05000311/LER-1981-030, Forwards LER 81-030/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-022-03, /03L-0:on 810520,rod 2D4 Dropped.Caused by Corroded Connector Pins.Pins Replaced & Rod Tested Satisfactorily ‎ (← links)
  • 05000311/LER-1981-022, Forwards LER 81-022/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-056-03, /03L-0:on 810521,power Partially Lost to Containment Sump Level Monitoring Sys.Caused by Design Deficiency in Unit Generator Breaker 3.Power Restored ‎ (← links)
  • 05000272/LER-1981-056, Forwards LER 81-056/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-055-03, /03L-0:on 810521,power Lost at Station Power Transformers 12 & 22.Caused by Design Deficiency in Unit 3 Generator Breaker.Power Restored ‎ (← links)
  • 05000272/LER-1981-055, Forwards LER 81-055/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-028-03, /03L-0:on 810603,feeder Breaker 2B4D Tripped When Fan Coil Unit 24 Was Started.Caused by Design Error. Overcurrent Protection Relay Accommodated Only One Fan Cooling Unit.Relay Reset ‎ (← links)
  • 05000311/LER-1981-027-03, /03L-0:on 810523,valve 2PR6 Position Indication Malfunctioned.Caused by Motor Operator Limit Switch Being Out of Adjustment.Switch Adjusted ‎ (← links)
  • 05000311/LER-1981-028, Forwards LER 81-028/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-027, Forwards LER 81-027/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-038-01, /01P-0:on 810623,during Normal Startup Operations, Svc Water Leak Was Discovered in Containment Emanating from Fan Coil Unit 21.Detailed Investigation Rept to Be Submitted Per IE Bulletin 80-24 ‎ (← links)
  • 05000272/LER-1981-048-03, /03L-0:on 810514,Tech Spec Limit Containment Air Lock Leakage Rate Exceeded Design Pressure During Sp.Caused by Outer Door Seal Not Holding Pressure.Seals Repaired & Tested ‎ (← links)
  • 05000272/LER-1981-048, Forwards LER 81-048/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-046-03, /03L-0:on 810512,required Cooling Water Flow Rate Not Obtained Resulting in Containment Fan Coil Unit 13 Stuck in Low Flow Position.Caused by Valve Stem Separated from Actuator Due to Cracked Trunnion Block Plug ‎ (← links)
  • 05000272/LER-1981-046, Forwards LER 81-046/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-047-03, /03L-0:on 810513,containment Air Lock Leak Rate Exceeded Design Pressure Tech Spec Limit During Sp.Caused by Outer Door Seal Not Holding Pressure.Seals Repaired & Tested ‎ (← links)
  • 05000272/LER-1981-047, Forwards LER 81-047/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-023-01, /01T-0:on 810522,main Steam Isolation Valves Failed to Close within Required 5-s During Startup Test. Caused by Design Error.Design Change Developed to Allow for Proper Interaction of Hydraulic & Steam Closing Subsys ‎ (← links)
  • 05000311/LER-1981-023, Forwards LER 81-023/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-054-01, /01T-0:on 810521,vendor Advised That Regulatory Requirements Could Be Violated by Failure of Vol Control Tank Level Control Sys & Subsequent Loss of Suction to Centrifugal Charging Pump W/Failure of Remaining Pump ‎ (← links)
  • 05000272/LER-1981-054, Forwards LER 81-054/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-042-03, /03L-0:on 810426,Action Statement 3.3.1.1 Was Entered for Pressurize Level Channel 3 Being Inoperable. Channel 3 Was 6% High Relative to Channels 1 & 2.Caused by Packing Leak on Valve 1PS8.Valve Was Repacked ‎ (← links)
  • 05000311/LER-1981-017-03, /03L-0:on 810515,Action Statement 3.4.9.3 Was Entered When Control Operator Noticed Higher than Normal Temp on Pressurizer Power Operated Relief Valve Outlet Line. Caused by Leakage of Valve 2PR1.Valve Will Be Repaired ‎ (← links)
  • 05000311/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-018-03, /03L-0:on 810515,technicians Calibr Valves 2PS1 & 2PS3 Activated Pressurizer Overpressure Protection Sys, Channel 2,during RCS Pressure Increase.Caused by Personnel Error Due to Improper Implementation of Work Orders ‎ (← links)
  • 05000311/LER-1981-018, Forwards LER 81-018/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-049-03, /03L-0:on 810518,Action Statement 3.6.1.3a Was Entered Due to Elevation 100-ft Containment Air Lock Being Inoperable.Caused by Damaged Inner Door Latching Mechanism Cam Rollers Due to Large Number of Operations ‎ (← links)
  • 05000272/LER-1981-049, Forwards LER 81-049/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-045-03, /03L-0:on 810429,Action Statement 3.3.1.1 Was Entered Due to High Voltage Intermittently Cutting in & Out in Source Range-N-31 Detector Channel.Caused Undetermined. Supplemental Rept Will Be Issued in Case of Reoccurrence ‎ (← links)
  • 05000272/LER-1981-045, Forwards LER 81-045/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • ML19346A119 ‎ (← links)
  • 05000272/LER-1981-044-03, /03L-0:on 810506,Action Statement 3.3.1.3.21 Was Entered When 2-h & 2 Minutes Were Required to Complete Surveillance Test,Contrary to 1-h Time Limit Required by Tech Specs.Caused by Inadequate Procedure ‎ (← links)
  • 05000272/LER-1981-044, Forwards LER 81-044/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-051-03, /03L-0:on 810501,dead Shortnosed Sturgeon Was Removed from Circulating Water Intake Trash Bar 12A. Shortnosed Sturgeon Is Listed as Endangered Species.Assumed That Specimen Was Dead Prior to Impingement ‎ (← links)
  • 05000272/LER-1981-051, Forwards LER 81-051/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-020-03, /03L-0:on 810224,snubber on Top of RHR Pump 11 Was Found to Be Defective.Probably Caused by Intermittent Seizing of Balls in Race Due to Internal Corrosion.Snubber Replaced ‎ (← links)
  • 05000272/LER-1981-020, Forwards LER 81-020/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-016-03, /03L-0:on 810430,operator Noticed Control Wires Glowing in 2B Diesel Exciter Cabinet.Caused by Sticking of Field Flashing Relay.Relay Cleaned & Field Flashing Resistors Replaced ‎ (← links)
  • 05000311/LER-1981-016, Forwards LER 81-016/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-013-03, /03L-0:on 810501,during Scheduled Type B & C Leakage Tests,Leak Rate Was Greater than Max Range of Volumetric Test Equipment.Caused by Use of Limited Range Equipment.Valves Adjusted & Airlock Door Seals Reworked ‎ (← links)
  • 05000311/LER-1981-010-03, /03L-0:on 810426,during Mode 3 Operations,Svc Water Pump 23 Declared Inoperable Due to Packing Leaks. Caused by Worn Main Shaft Packing.Packing Replaced ‎ (← links)
  • 05000311/LER-1981-013, Forwards LER 81-013/03L-0 ‎ (← links)
  • 05000311/LER-1981-010, Forwards LER 81-010/03L-0 ‎ (← links)
  • 05000311/LER-1981-009-03, /03L-0:on 810423,during Plant Cooldown,Inadvertent Safety Injection Occurred.Caused by Valve 24MS10 Opening, Causing Dilution of Boron Injection Tank to Below Min Limits.Situation Corrected within Allowed Limits ‎ (← links)
  • 05000311/LER-1981-009, Forwards LER 81-009/03L-0 ‎ (← links)
  • 05000272/LER-1981-042, Forwards LER 81-042/03L-0 ‎ (← links)
  • 05000272/LER-1981-043-03, /03L-0:on 810505,while Performing Surveillance Procedure Sp(O) 4.6.1.3 on Containment Air Lock,Leak Rate Exceeded Tech Spec Limits.Caused by Outer Door Seal Not Maintaining Test Pressure.Seals Were Reversed ‎ (← links)
  • 05000272/LER-1981-043, Forwards LER 81-043/03L-0 ‎ (← links)
  • 05000311/LER-1981-012-03, /03L-0:on 810427,during Surveillance Procedure Sp(O) 4.6.1.3 on Containment Air Lock,Leak Rate Exceeded Tech Specs.Caused by Inability of Inner Door Seals to Maintain Test Pressure.Seals Replaced ‎ (← links)
  • 05000311/LER-1981-012, Forwards LER 81-012/03L-0 ‎ (← links)
  • 05000311/LER-1981-011-03, /03L-0:on 810427,during Routine Entry Into Containment,Containment Airlock Outer Door Would Not Close. Caused by Out of Alignment Linkage & Subsequent Roller Bearing Damage.Linkage Realigned & Roller Bearings Replaced ‎ (← links)
  • 05000311/LER-1981-011, Forwards LER 81-011/03L-0 ‎ (← links)
  • 05000272/LER-1981-040-03, /03L-0:on 810220,records of Completed Surveillance Tests Found Missing.Caused by Faulty Procedures Not Providing for Permanent Storage of Records.Firmer Controls Will Be Established for Record Transmittal ‎ (← links)
  • 05000272/LER-1981-040, Forwards LER 81-040/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-014-01, /01T-0:on 810505,DCR-663R1 Issued W/Incorrect Cable Routing for Ac Power Feed from (2)1ASDS 115-volt Ac Distribution Panel to Fire Protection Process Rack.Cause Not Stated.Cable Routing Will Be Changed ‎ (← links)
  • 05000311/LER-1981-014, Forwards LER 81-014/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-006-03, /03L-0:on 810419,valve 2PR1 Found Leaking.Caused by Seizing & Galling of Valve Stem & Gauge.Stem & Gauge Replaced.Channel Tested Satisfactorily & Returned to Svc 810504 ‎ (← links)
  • 05000311/LER-1981-006, Forwards LER 81-006/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-005-03, /03L-0:on 810413,all Reactor Coolant & Residual Heat Removal Pumps Were de-energized Longer than Time Allowed by Tech Specs.Caused by Replacement of Relief Valve 2RH3 in Residual Heat Removal Sys ‎ (← links)
  • 05000311/LER-1981-005, Forwards LER 81-005/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-007-03, /03X-2:on 800128,during Review of Sys Diagrams, Demineralized Water Supply Check Valve to Auxiliary Feedwater Storage Tank 1DR7 Found to Be Not Seismically Qualified.Caused by Design Deficiency.Valve Qualified ‎ (← links)
  • 05000272/LER-1981-041-03, /03L-0:on 810426,while in Hot Standby,Action Statement 3.4.6.2 Entered Due to Unidentified RCS Leak. Cause Not Stated.Action Statement Terminated When Valve 1PS8 Was Discovered Leaking.Valve Repacked ‎ (← links)
  • 05000272/LER-1981-041, Forwards LER 81-041/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-007-03, /03L-0:on 810423,while Attempting to Start Auxiliary Feedwater Pump 22,relay Flags for Phases a & C on Breaker 2B1D Found Dropped.Caused by Drifting of Wipe on Trip Latch.Wipe of Trip Latch Reset ‎ (← links)
  • 05000311/LER-1981-007, Forwards LER 81-007/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-039-01, /01T-0:on 810422,svc Water Leak Discovered Coming from Containment Fan Cooling Unit 13.Caused by Leak in Weld Connecting Carbon Steel Nipple to Stainless Steel Flange in Unit Outlet Drain Line.Weld Reworked ‎ (← links)
  • 05000272/LER-1981-039, Forwards LER 81-039/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-018-03, /03X-1:on 810214,diesel Generator 1A Was Declared Inoperable Due to Cooling Water Leak.Caused by Cracked & Leaking Nipple Connecting Jacket Water Valve 1DA45A & Jacket Water Pipe.Nipple Replaced ‎ (← links)
  • 05000272/LER-1981-018, Forwards LER 81-018/03X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-038-03, /03L-0:on 810404,during Routine Testing,No Audible Fire Alarm Signals Were Generated.Caused by Out of Adjustment Limit Switch.Decoder & Limit Switch Readjusted, Cycled & Tested Satisfactorily ‎ (← links)
  • 05000272/LER-1981-038, Forwards LER 81-038/03L-0 ‎ (← links)
  • 05000272/LER-1981-036-03, /03L-0:on 810405,fire Hose Located on Elevation 100-ft Was Discovered to Be Inoperable Due to 6-inch Slash. Caused by Malicious Mischief or Vandalism by Unknown Person or Persons.Hose Replaced ‎ (← links)
  • 05000272/LER-1981-036, Forwards LER 81-036/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-037-03, /03L-0:on 810404,RHR Pump Declared Inoperable. Caused by Leak from Mechanical Seal.Shaft Sleeve O Rings, Throttle Bushing Assembly & Circulating Ring Assembly Replaced ‎ (← links)
  • 05000272/LER-1981-037, Forwards LER 81-037/03L-0 ‎ (← links)
  • 05000272/LER-1981-027, Forwards LER 81-027/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-003-03, Liquid Waste from Waste Monitor Tank 22 Was Released W/O Authorization.Caused by Operator Neglecting to Take Release Form to Lab for Approval.Supervisor & Operator Counseled ‎ (← links)
  • 05000272/LER-1981-033-03, /03L-0:on 810402,fire Pump 2 Was Declared Inoperable Due to Leaking Fuel Oil Pressure Gauge Supply Hose.Caused by Hole Worn Through Hose Due to Hose Chafing Against Manifold.Hose Will Be Replaced ‎ (← links)
  • 05000272/LER-1981-033, Forwards LER 81-033/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-003, Forwards LER 81-003/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000311/LER-1981-004-04, /04T-0:on 810407,containment Fan Cooling Unit 24 Found Leaking Svc Water.Caused by Vent Valve 24SW63 Not Fully Closed.Valve Closed ‎ (← links)
  • 05000311/LER-1981-004, Forwards LER 81-004/04T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-030-03, /03L-0:on 810316,shift Supervisor Discovered That Welding Lead Plugs Had Been Removed from Penetration Fire Barriers W/O Following Procedures.Caused by Personnel Error. Personnel Counseled.Administrative Procedures to Be Rev ‎ (← links)
  • 05000272/LER-1981-030, Forwards LER 81-030/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-034-03, /03L-0:on 810210,spent Fuel Pit Telltale Drain 6 Found Leaking.Caused by Defective Seams.Plate Welded Over Defect in Side Wall.Floor Seam Defects Sealed ‎ (← links)
  • 05000272/LER-1981-034, Forwards LER 81-034/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-032-03, /03L-0:on 810101-31,during Routine Insp,Inspector Discovered Three Occasions Where Personnel Failed to Log Operational Events.Caused by Personnel Neglect.Personnel Counseled ‎ (← links)
  • 05000272/LER-1981-032, Forwards LER 81-032/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-029-03, /03L-0:on 810314,diesel Generator 1A Declared Inoperable During Surveillance Test.Caused by Erratic Governor Control Preventing Generator Load from Reaching Required Level & Procedural Inadequacy.Insp Orders Issued ‎ (← links)
  • 05000272/LER-1981-029, Forwards LER 81-029/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-027-03, /03L-0:on 810311,senior Shift Supervisor Initiated Emergency Procedure Due to High Rb-88 Concentrations in Air Sampling.Caused by Ruptured Lower Diaphragm in Waste Gas Sys.Diaphragm Replaced ‎ (← links)
  • 05000272/LER-1981-025, Replacement LER 81-025/04L-0:on 810306,containment/plant Vent Sampler Found Not Placed in Plant Vent Mode While Discharging Waste Gas Decay Tank 2.Caused by Personnel Failure to Follow Procedure.Sampler Correctly Lined Up ‎ (← links)
  • 05000272/LER-1981-024-03, /03L-0:on 810303,auxiliary Feedwater Storage Tank Level Found Below Min Level Required by Tech Specs.Caused by Control Operator Error.Operator Counseled ‎ (← links)
  • 05000272/LER-1981-024, Forwards LER 81-024/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-026-03, /03L-0:on 810308,two Pull Boxes Did Not Generate Audible Alarm Signals During Testing on Manual Fire Alarm Sys.Caused by Operator Not Resetting Alarms.Boxes Reset & Operator Counseled ‎ (← links)
  • 05000272/LER-1981-026, Forwards LER 81-026/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-031-01, /01T-0:on 810324,containment Fan Coil Unit 12 Declared Inoperable in Order to Replace Leaking Nipple in Svc Water Outlet Drain Line.Caused by Pinhole Leak in Weld Connecting Carbon Steel Nipple to Stainless Steel Coupling ‎ (← links)
  • 05000272/LER-1981-031, Forwards LER 81-031/01T-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-022-03, /03L-0:on 810301,boric Acid Storage Sys Vol Fell Below Tech Spec Level.Caused by Rapidly Borated RCS Due to Failure to Two Control Rod Position Indicators,Following Reactor Trip.Batching Commenced & Vol Raised ‎ (← links)
  • 05000272/LER-1981-022, Forwards LER 81-022/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-017-03, /03L-0:on 810223,RHR Pump 12 Declared Inoperable to Perform Test Per IE Bulletin 81-01.Caused by Defective Snubber Due to Intermittent Seizing of Balls in Race from Internal Corrosion.Snubber Replaced ‎ (← links)
  • 05000272/LER-1981-017, Forwards LER 81-017/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-023-03, /03L-0:on 810305,containment Air Lock Leak Rate Exceeded Tech Spec Limit During Surveillance Procedure at Elevation 100 Feet.Caused by Inner Door Seal Not Holding Pressure.Seals Repaired.Engineering Evaluation Request Encl ‎ (← links)
  • 05000272/LER-1981-023, Forwards LER 81-023/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-021-03, /03L-0:on 810227,boric Acid Tanks 11 & 12 Declared Inoperable.Caused by Loss of Level Indication for Both Tanks Due to Sensing Lines Plugged W/Boric Acid. Transmitter Sensing Lines Cleaned ‎ (← links)
  • 05000272/LER-1981-021, Forwards LER 81-021/03L-0.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-007-01, /01X-1:on 810119,throttling Valves 14SJ16,11SJ138, 12SJ138 & 13SJ138 Found Out of Position.Caused by Procedure Inadequacy & Personnel Error.Valves Moved to Correct Positions & Procedures Changed ‎ (← links)
  • 05000272/LER-1981-007, Forwards LER 81-007/01X-1.Detailed Event Analysis Encl ‎ (← links)
  • 05000272/LER-1981-011-03, /03L-0:on 810127,svc Water Line to Containment Fan Coil Unit 11 Found Leaking.Caused by Leaking Weld Connecting Spool Piece to Valve 11SW57.Weld Reworked & Spool Piece Replaced ‎ (← links)
  • 05000272/LER-1981-011, Forwards LER 81-011/03L-0 ‎ (← links)
  • 05000272/LER-1981-016-03, /03L-0:on 810207,rod Position Indicator for Rod 2D1 Indicated That Rod Had Dropped.Caused by Rod Position Indicator Cable Making Loose Contact at Reactor Head Connection Due to Spreading of Pins.Cable Replaced ‎ (← links)
  • 05000272/LER-1981-016, Forwards LER 81-016/03L-0 ‎ (← links)
  • 05000272/LER-1981-015-03, /03L-0:on 810206,rod Position Indicator for Rod 2D1 Indicated That Rod Had Dropped.Caused by Loosely Connected Amphenol Screw Connector on Rod Position Indicator Cable.Connection Secured ‎ (← links)
  • 05000272/LER-1981-015, Forwards LER 81-015/03L-0 ‎ (← links)
  • 05000272/LER-1981-010-03, /03L-0:on 810126,containment Fan Coil Unit 11 Declared Inoperable in Order to Replace Leaking Spool Piece in Svc Water Line.Due to Reactor Trip,Fan Coil Unit Had to Be Tested & Declared Operational ‎ (← links)
  • 05000272/LER-1981-010, Forwards LER 81-010/03L-0 ‎ (← links)
  • 05000272/LER-1981-013-03, /03L-0:on 810201,centrifugal Charging Pump 12 Declared Inoperable Due to Leak in Pump Oil Cooler.Oil Cooler Replaced ‎ (← links)
  • 05000272/LER-1981-012-03, /03L-0:on 810204,fire Pump 2 in Fire Suppression Water Sys Declared Inoperable for Maint on Leaking Inlet Cooling Water Line.Caused by Leaking Corrugated Stainless Steel Hose Connecting Common Cooling Water Piping ‎ (← links)
  • 05000272/LER-1981-013, Forwards LER 81-013/03L-0 ‎ (← links)
  • 05000272/LER-1981-012, Forwards LER 81-012/03L-0 ‎ (← links)
  • 05000272/LER-1981-014-03, /03L-0:on 810201,centrifugal Charging Pump 12 Declared Inoperable.Caused by Loss of Oil Overheating Thrust Bearing & Partially Wiping Main Bearing.Bearings Replaced, Oil Reservoir & All Bearing Housing & Oil Lines Flushed ‎ (← links)
  • 05000272/LER-1981-014, Forwards LER 81-014/03L-0 ‎ (← links)
  • 05000272/LER-1981-008-03, /03L-0:on 810124,carriage Guide Wire of Auxiliary Annunciator Typewriter Broke,Resulting in Loss of Containment Sump Level Monitoring Sys.Caused by Equipment Failure.Broken Wire Replaced by Ibm Technician ‎ (← links)
  • 05000272/LER-1981-008, Forwards LER 81-008/03L-0 ‎ (← links)
  • 05000272/LER-1981-004-03, /03L-0:on 810119,during Daily Surveillance Test on Control Room Emergency Air Conditioning Sys Isolation Dampers,Damper 1CAA3 Failed to Close.Caused by Ice Formation on Louvers.Ice Melted & Damper Returned to Svc ‎ (← links)
  • 05000272/LER-1981-004, Forwards LER 81-004/03L-0 ‎ (← links)
  • 05000272/LER-1981-005-03, /03L-0:on 810128,during Routine Functional Test on Reactor Protection Sys,Safety Injection Signal Failed.Caused by Comparator Unit (Hagan Model 4111082-001) Failure. Defective Module Replaced ‎ (← links)
  • 05000272/LER-1981-005, Forwards LER 81-005/03L-0 ‎ (← links)
  • 05000272/LER-1981-006-03, /03L-0:on 810115,no Audible Fire Alarm Would Sound.Caused by Current Impedance Mismatch Between Tone Generator of Fire Alarm Sys & Remainder of Sys Due to Overload.Generator Amplifier Adjusted ‎ (← links)
  • 05000272/LER-1981-006, Forwards LER 81-006/03L-0 ‎ (← links)
  • 05000272/LER-1981-003-03, /03L-0:on 810109,component Cooling Water Heat Exchanger 12 Removed from Svc.Caused by Repair of Leaking Pipe Nipple at Weld Connecting Svc Water Drain Valve 12SW124 W/Heat Exchanger Tube Sheet.Nipple Replaced & Weld Reworked ‎ (← links)
  • 05000272/LER-1981-003, Forwards LER 81-003/03L-0 ‎ (← links)
  • 05000311/LER-1981-001-03, /03L-0:on 810104,during Cold Shutdown,Diesel Unit Trip Relay on Diesel Generator 2A Tripped.Cause Undetermined.Relay Reset.Diesel Generator Determined Operable After Satisfactory Completion of Tests ‎ (← links)
  • 05000311/LER-1981-001, Forwards LER 81-001/03L-0 ‎ (← links)
  • 05000272/LER-1981-002-03, /03L-0:on 810108,during Normal Operations, Indication in Control Room of Svc Water Flow to Fan Coil Unit 14 Was Lost.Caused by Portable Propane Heaters Running Out of Fuel Resulting in Instrument Lines Freezing ‎ (← links)
  • 05000272/LER-1981-002, Forwards LER 81-002/03L-0 ‎ (← links)
  • 05000272/LER-1981-001-03, /03L-0:on 810105,axial Flux Difference in Two Channels Drifted Out of Required Band.Caused by Operator Error.Reactor Power Level Reduced & Axial Flux Differences Returned to Values within Required Range ‎ (← links)
  • 05000272/LER-1981-001, Forwards LER 81-001/03L-0 ‎ (← links)