Pages that link to "05000321/LER-1980-003, Forwards LER 80-003/03L-0"

The following pages link to 05000321/LER-1980-003, Forwards LER 80-003/03L-0:

Displayed 12 items.

• ML19257C766 (redirect page) ‎ (← links)
  • ML19257C767 ‎ (← links)
  • 05000321/LER-1980-003-03, /03L-0:on 800105,w/reactor in Shutdown Mode, Outboard Shutdown Cooling Isolation Valve 1E11-F008,opened in 25.8-s & Closed in 25.2-s.Tech Spec Limit Is No Greater than 24-s.Cause Not Established.Valve Adjusted ‎ (← links)
• 05000321/LER-1980-003 (redirect page) ‎ (← links)
• 05000321/LER-1980-003, Forwards Revised LER 80-003/03X-1 (redirect page) ‎ (← links)
  • ML20070E253 (redirect page) ‎ (← links)
  • 05000366/LER-1980-057, Forwards LER 80-057/01T-0 ‎ (← links)
  • 05000321/LER-1980-035, Forwards LER 80-035/03L-0 ‎ (← links)
  • 05000366/LER-1980-038, Forwards LER 80-038/03L-0 ‎ (← links)
  • 05000366/LER-1980-023, Forwards Updated LER 80-023/03X-1 ‎ (← links)
  • 05000366/LER-1980-036, Forwards LER 80-036/03L-0 ‎ (← links)
  • 05000366/LER-1980-030, Forwards LER 80-030/03L-0 ‎ (← links)
  • 05000321/LER-1980-109-03, /03L-0:on 800919,rolling Overhead Fire Door in Diesel Generator Room 1A Was Found Nonfunctional.Caused by Buildup of Grease on Closing Mechanism.Responsible Person Counseled to Apply Light Coat of Grease ‎ (← links)
  • 05000366/LER-1980-161-03, /03L-0:on 801126,eight Relief valves,2B21-FO13A-M, Failed Due to Pilot Seat Leakage & High Set Pressure.Cause Undetermined.Valves Repaired & Retested ‎ (← links)
  • 05000366/LER-1980-161, Forwards LER 80-161/03L-0 ‎ (← links)
  • 05000321/LER-1980-127-03, /03L-0:on 801223,w/unit in Steady State Operation, Research for 5-yr Inservice Insp Rept Revealed Lack of Documentation Proving Visual Insp of 50% of Class 1 Valve Internals.Caused by Procedural Deficiency ‎ (← links)
  • 05000321/LER-1980-127, Forwards LER 80-127/03L-0 ‎ (← links)
  • 05000321/LER-1980-125, Has Been Cancelled ‎ (← links)
  • 05000321/LER-1980-128, Forwards LER 80-128/03L-0 ‎ (← links)
  • 05000321/LER-1980-124-03, /03L-0:on 801228,control Room Air Intake Isolation Valve 1Z41-F012 Failed to Close in Required Time.Caused by Faulty Pilot Solenoid Operator.Pilot Solenoid Replaced ‎ (← links)
  • 05000321/LER-1980-123, Forwards LER 80-123/03L-0 ‎ (← links)
  • 05000321/LER-1980-124, Forwards LER 80-124/03L-0 ‎ (← links)
  • 05000321/LER-1980-117, Forwards LER 80-117/03L-0 ‎ (← links)
  • 05000366/LER-1980-152-03, /03L-0:on 801104,review of Test Results Indicated Excessive Leakage from RHR Min Flow Valve 2E11-F007A & HPCI Turbine Exhaust Valve 2E41-F049.Caused by Faulty Closing of Valve 2E11-F007A.Valve 2E41-F049 Leak Cause Undetermin ‎ (← links)
  • 05000366/LER-1980-152, Forwards LER 80-152/03L-0 ‎ (← links)
  • 05000366/LER-1980-101, Forwards LER 80-101/03L-0 ‎ (← links)
  • 05000366/LER-1980-157-31, /03L-0:on 801223,control Rod Removed & Placed in Pool for Insp.Monorail Hoist Used W/O Performing Hoist Operability.Caused by Inadequate Procedure.Procedure Revised ‎ (← links)
  • 05000321/LER-1980-118-03, /03L-0:on 801212,1E11-FO15B Valve,Rhr Inboard Injection,Was Leaking.Caused by Cracks on Seating Surfaces of Valve Disc.Valve Seats Lapped & New Disc Installed ‎ (← links)
  • 05000321/LER-1980-118, Forwards LER 80-118/03L-0 ‎ (← links)
  • 05000321/LER-1980-126-03, /03L-0:on 801226,dinitrogen Storage Tank Inventory Reduced to Below Tech Spec Level.Caused by Pressure Control Valve Sticking Causing Tank Relief Valve to Open.Pressure Control Loop Placed in Manual Control ‎ (← links)
  • 05000321/LER-1980-126, Forwards LER 80-126/03L-0 ‎ (← links)
  • 05000321/LER-1980-120, Forwards LER 80-120/03L-0 ‎ (← links)
  • 05000321/LER-1980-105-03, /03L-0:on 800906,D RHR Svc Water Pump Had Vibration Readings Outside ASME Limits.Apparently Caused by Establishment of Extremely Low Ref Data.Vendor Established New Ref Data for Pump ‎ (← links)
  • 05000321/LER-1980-105, Forwards LER 80-105/03L-0 ‎ (← links)
  • 05000366/LER-1980-129, Forwards LER 80-129/03L-0 ‎ (← links)
  • 05000366/LER-1980-151-03, Primary Feedwater Isolation Valve 2B21-F010B Leakage Rate Found to Exceed Bypass Path Penetration Tech Spec.Caused by Scratches on Seat of Valve Due to Valve Closing on Debris ‎ (← links)
  • 05000366/LER-1980-151, Forwards Updated LER 80-151/03X-1 ‎ (← links)
  • 05000321/LER-1980-110-03, /03L-0:on 800919,HPCI Min Flow valve,1E41-F012 Failed to Close on Signal.Caused by Mechanical Interlock on Opening Contractor Binding Which Would Not Allow Closing Contractor to Pickup.Contractor Repaired & Returned to Svc ‎ (← links)
  • 05000321/LER-1980-110, Forwards LER 80-110/03L-0 ‎ (← links)
  • 05000366/LER-1980-133, Forwards LER 80-133/03L-0 ‎ (← links)
  • 05000366/LER-1980-128-03, /03L-0:on 800905,reactor High Pressure Instruments 2B21-N023C & D Actuated Above Tech Specs.Caused by Setpoint Drift.Switches Recalibr & Tested Successfully ‎ (← links)
  • 05000321/LER-1980-096-03, /03L-0:on 800902,all Points of IT47-R612 Drywell & Torus Temp Recorder Read 17 Degrees F Higher than Redundant Recorder 1T47-R611.Caused by Calibr Drift. Instrument Recalibr & Returned to Svc ‎ (← links)
  • 05000321/LER-1980-096, Forwards LER 80-096/03L-0 ‎ (← links)
  • 05000366/LER-1980-156-03, /03L-0:on 801113,determined RHR Return Inboard & Outboard Thermal Expansion Bellows Leaking in Excess of Spec.Caused by Cracks in Test Connection Tubing.Retest to Be Performed ‎ (← links)
  • 05000366/LER-1980-155, Forwards LER 80-155/03L-0 ‎ (← links)
  • 05000366/LER-1980-149-03, /03L-0:on 801101,leaking RHR Pump Suction Isolation Valve 2E11-F004B Prevented Test Vol Pressurization.Caused by Scratches on Seat of Valve.Valve Seat Polished to Remove Scratches ‎ (← links)
  • 05000366/LER-1980-149, Forwards LER 80-149/03L-0 ‎ (← links)
  • 05000366/LER-1980-145, Forwards LER 80-145/03L-0 ‎ (← links)
  • 05000366/LER-1980-147-03, /03L-0:on 801029,drywell Hydrogen Dioxide Analyzers 2-P33-P001A & B Found Inoperative.Cause Unknown. Vendor & Util Investigating Failure ‎ (← links)
  • 05000366/LER-1980-150-03, /03L-0:on 801102,HPCI Steam Line Pressure a Logic Did Not Autoisolate Until Tech Specs Exceeded.Cause Unknown. Further Investigation Planned ‎ (← links)
  • 05000321/LER-1980-111, Forwards LER 80-111/03L-0 ‎ (← links)
  • 05000366/LER-1980-150, Forwards LER 80-150/03L-0 ‎ (← links)
  • 05000366/LER-1980-146, Forwards LER 80-146/03L-0 ‎ (← links)
  • 05000321/LER-1980-114-03, /03L-0:on 801027,HPCI Steamline Low Pressure Switches 1E41-N001A-D Actuated Outside Tech Specs.Caused by Setpoint Drift.Instruments Recalibr ‎ (← links)
  • 05000321/LER-1980-114, Forwards LER 80-114/03L-0 ‎ (← links)
  • 05000366/LER-1980-138-03, /03L-0:on 801027,leakage on Torus Purge Inlet Outboard Isolation Valve 2T48-F324 Found Such That Test Vol Could Not Be Pressurized.Caused by Worn O Rings.Shaft & Housing for O Rings Cleaned.O Rings Replaced ‎ (← links)
  • 05000366/LER-1980-138, Forwards LER 80-138/03L-0 ‎ (← links)
  • 05000321/LER-1980-116-03, /03L-0:on 801105,reactor Recirculation Pump a Motor Generator Tripped.Cause Unknown.Generator Set Restarted & No Problems Found ‎ (← links)
  • 05000321/LER-1980-100-01, /01T-0:on 800822,util Notified by Bechtel That Seismic Piping Support Was Not Installed.Apparently Caused by Poor Communication W/Designer Re Addition of Support to Original Analysis.Support Installed ‎ (← links)
  • 05000321/LER-1980-102-03, /03L-0:on 800821,while at Steady State Power,B LPCI Inverter Tripped Making B Loop of RHR Inoperable.Caused by High Ambient Temp.Temporary Cooling Is Being Used Until Installation of Permanent Chillers Is Complete ‎ (← links)
  • 05000321/LER-1980-101-03, /03L-0:on 800819,Standing Order 80-45, Scram Discharge Vol Residual Water or Vacuum Determination, Was Not Performed.Caused by Personnel Error ‎ (← links)
  • 05000321/LER-1980-099-03, /03L-0:on 800817,while Performing Normal Operation of Unit Radwaste,Door to Empty Drum Conveyor Room Discovered Unlocked.Caused by Evening Shift Personnel Not Locking Door When Exiting.Lock Changed to Self Locking Type ‎ (← links)
  • 05000321/LER-1980-099, Forwards LER 80-099/03L-0 ‎ (← links)
  • 05000366/LER-1980-122-03, /03L-0:on 800811,during Steady State Operation at Full Power,While Performing HNP-2-3001,reactor High Pressure Instrument Test,Switch 2B21-N023C Actuated at 1,068 Psig. Caused by Setpoint Drift.Switch Recalibr ‎ (← links)
  • 05000366/LER-1980-109-03, /03L-0:on 800809,while Performing HPCI Valve Operability,Hpci Suppression Chamber Suction Valve 2E41-F041 Failed When Cycled to Check for Battery Ground.Caused by Motor Winding Failure Due to High Temp.Motor Repaired ‎ (← links)
  • 05000366/LER-1980-119-02, /02L-0:on 800805,during QA Audit Surveillance,Fire Barrier Penetration Seal Through Floor of Control Room Was Found Breached.Caused by Failure to Reseal Following Cable Removal.Seal Repaired 800820.Fire Watch Established ‎ (← links)
  • 05000366/LER-1980-119, Forwards LER 80-119/02L-0 ‎ (← links)
  • 05000366/LER-1980-115-03, /03L-0:on 800727,while in shutdown,2C Diesel Generator Failed to Tie & Supply 4,160-volt Bus 2G.Caused by Instrument Setpoint Drift.Relay Recalibr & Surveillance Performed W/Satisfactory Results ‎ (← links)
  • 05000366/LER-1980-115, Forwards LER 80-115/03L-0 ‎ (← links)
  • 05000366/LER-1980-117-03, /03L-0:on 800803,w/reactor in Run Mode & While Performing HNP-2-3184,it Was Discovered That Reactor Core Isolation Cooling Turbine Could Not Be Reset & Throttle Valve Did Not Have Light.Caused by Inadequate Procedure ‎ (← links)
  • 05000366/LER-1980-117, Forwards LER 80-117/03L-0 ‎ (← links)
  • 05000366/LER-1980-116-03, /03L-0:on 80802,during Normal Operation,Routine Surveillance Checks Revealed That Torus Temp Exceeded Tech Specs.Caused by Ambient Temp of Torus Area.Cooling Initiated.Operators Instructed to Monitor More Frequently ‎ (← links)
  • 05000366/LER-1980-116, Forwards LER 80-116/03L-0 ‎ (← links)
  • 05000321/LER-1980-088, Forwards LER 80-088/03L-0 ‎ (← links)
  • 05000321/LER-1980-089-03, /03L-0:on 800726,during Normal Operation,Drywell & Torus Temp Recorder lT47-R611 Found Inoperative.Caused by Stripped Gear in Print Drive Mechanism.Gear Replaced.Design Change Initiated to Replace Recorder ‎ (← links)
  • 05000366/LER-1980-121-01, /01T-0:on 800813,w/unit at 2412 MW While Performing HNP-2-3102,pressure Switches Actuated Out of Tolerance.Caused by Setpoint Drift.Switches Recalibr. HNP-2-3102 Performed Satisfactorily ‎ (← links)
  • 05000321/LER-1980-089, Forwards LER 80-089/03L-0 ‎ (← links)
  • 05000366/LER-1980-114-03, /03L-0:on 800726,while Taking Unit to Cold Shutdown,Hpci Sys Failed to Isolate at Greater than or Equal to 100 Psig.Caused by Corrosion of B Isolation Logic Pressure Switch 2E41-N001D.Instrument Replaced ‎ (← links)
  • 05000366/LER-1980-114, Forwards LER 80-114/03L-0 ‎ (← links)
  • 05000366/LER-1980-111-03, /03L-0:on 800724,while Operating at Steady State, HPCI Steam Line Inboard Isolation Valve 2E41-F002 Isolated, Making Hcpi Inoperable.Probably Caused by Personnel Bumping HPCI Steam Leak Detection Relay ‎ (← links)
  • 05000321/LER-1980-094, Forwards LER 80-094/03L-0 ‎ (← links)
  • 05000321/LER-1980-093-03, /03L-0:on 800731,during Normal Operation,One Torus Water Level Recorder Was Found Inoperative.Caused by Defective Recorder Amplifier.Amplifier Replaced & Recorder Returned to Normal Operation ‎ (← links)
  • 05000321/LER-1980-019-03, /03L-0:on 800213,while Performing Reactor Core Isolation Cooling Turbine Exhaust Diaphragm Functional Test & Calibr,Pressure Switches 1E51-N012B & 1E51-N012C Found Outside Tech Spec Limits.Caused by Setpoint Drift ‎ (← links)
  • 05000321/LER-1980-019, Forwards LER 80-019/03L-0 ‎ (← links)
  • 05000321/LER-1980-113-03, /03L-0:on 801201,nitrogen Storage Tank Inventory Found Reduced to Less than Tech Spec Requirements.Caused by Addition of Nitrogen to Drywell to Reduce Oxygen to Level Required by HNP-1-1050 Surveillance Checks.Tank Refilled ‎ (← links)
  • 05000321/LER-1980-113, Forwards LER 80-113/03L-0 ‎ (← links)
  • 05000366/LER-1980-153, Forwards LER 80-153/03L-0 ‎ (← links)
  • 05000366/LER-1980-154, Forwards LER 80-154/03L-0 ‎ (← links)
  • 05000366/LER-1980-125-03, /03L-0:on 800824,during Control Room Panel Check, 2E32-F001B Valve Found to Have No Indicating Lights.Caused by Open Fuse in Valve Control Circuit.Circuit Integrity Verified & Control Fuse Replaced ‎ (← links)
  • 05000366/LER-1980-125, Forwards LER 80-125/03L-0 ‎ (← links)
  • 05000366/LER-1980-160-03, /03L-0:on 801216,during Refueling,Local Leak Rate Test Performed on Fire Protection Isolation Valve 2T43-F159 Revealed Leakage Would Have Exceeded Acceptance Criteria Since Test Vol Could Not Be Pressurized ‎ (← links)
  • 05000321/LER-1980-119-03, /03L-0:on 801212,routine Channel Check Showed Fission Product Monitors 1D11-K631,particulate Count & 1D11-K633,noble Gas Count,Were Out of Calibr.Caused by Discriminator Setpoint Drift.Setpoint Adjusted ‎ (← links)
  • 05000321/LER-1980-119, Forwards LER 80-119/03L-0 ‎ (← links)
  • 05000321/LER-1980-122-01, /01T-0:on 801219,QC Insp of Cable Spreading Room & Control Bldg Sprinkler Hangers Installed in 1978 Revealed Deficiencies Which Jeopardize Seismic Qualification of Sprinkler Sys.Caused by Improper Installation ‎ (← links)
  • 05000321/LER-1980-122, Forwards LER 80-122/01T-0 ‎ (← links)
  • 05000366/LER-1980-162, Forwards LER 80-162/03L-0 ‎ (← links)
  • 05000366/LER-1980-164-03, /03L-0:on 801210,attempt to Pressurize Drywell Equipment Drain Sump to Radwaste Discharge Piping Failed Due to Excessive Leakage Past Outboard Isolation Valve 2G11- F004.Caused by Valve Gate Not Seating Properly.Gate Lapped ‎ (← links)
  • 05000366/LER-1980-159-03, /03L-0:on 801126,engine for Diesel Generator 2C Failed During Testing.Caused by Broken Cotter Pins Which Lock Connecting Rod Nuts in Place.Followup Rept to Be Submitted When Generator Repaired ‎ (← links)
  • 05000366/LER-1980-159, Forwards LER 80-159/03L-0 ‎ (← links)
  • 05000366/LER-1980-141-03, /03L-0:on 801014,during Power Change from 2,180 to 1,980 Mwt & Performance of HNP-2-3307,HPCI Steamline Dp Switch Actuated at 198 Inches Water Dp.Caused by Setpoint Drift.Barton Model 228A Switch Recalibr & Tested ‎ (← links)
  • 05000321/LER-1980-115-01, /01T-0:on 801031,util Notified That Nine Masonry Block Walls in Control Bldg Show Local Stresses Above Allowable Codes.Caused by Equipment Mounted on Walls After Original Installation.Walls Will Be Reinforced ‎ (← links)
  • 05000321/LER-1980-106-03, /03L-0:on 801022,chlorine monitor,1Z41-N022A, Sample Fan Found Inoperative.Caused by Sample Fan Bearing Drag,Abetted by Dried Bearing Oil Lubricator Wicks.Wicks Oiled & Procedure Revised to Oil Wicks Monthly ‎ (← links)
  • 05000321/LER-1980-106, Forwards LER 80-106/03L-0 ‎ (← links)
  • 05000321/LER-1980-112-03, /03L-0:on 801023,four Fire Doors Protecting safety-related Areas Failed Surveillance Tests.Caused by Lack of Closers on Three Doors & Damage to Remaining Door. Maint Requests Issued & Closers Installed ‎ (← links)
  • 05000366/LER-1980-142-03, /03L-0:on 801014,while Operating at Steady State 2,138 Mwt Power Level,Break in 3-h Fire Rated Wall Identified.Caused by Personnel Oversight in Followup of Sealing New Penetrations.Fire Watch Posted ‎ (← links)
  • 05000366/LER-1980-142, Forwards LER 80-142/03L-0 ‎ (← links)
  • 05000366/LER-1980-140-03, /03L-0:on 801009,suppression Chamber Drywell Vacuum Breakers Were Not Tested During Safety Relief Valve G Operation.Caused by Operator Error.Breakers Were Tested Upon Discovery of Error ‎ (← links)
  • 05000366/LER-1980-140, Forwards LER 80-140/03L-0 ‎ (← links)
  • 05000321/LER-1980-107-03, /03L-0:on 800918,safety Relief Valve Tail Pipe Pressure Switch Ft&C Surveillance Found Not Peformed at Required One Month Frequency.Caused by Inadvertent Oversight by Surveillance Scheduling Personnel ‎ (← links)
  • 05000321/LER-1980-107, Forwards LER 80-107/03L-0 ‎ (← links)
  • 05000366/LER-1980-137-03, /03L-0:on 800929,during Plant Shutdown,While Performing HPCI Turbine Exhaust Diaphragm Functional Test & Calibr,Pressure Switch Actuated Contrary to Tech Spec.Caused by Setpoint Drift.Switch Recalibr & Functionally Tested ‎ (← links)
  • 05000366/LER-1980-137, Forwards LER 80-137/03L-0 ‎ (← links)
  • 05000366/LER-1980-134, Forwards LER 80-134/03L-0 ‎ (← links)
  • 05000366/LER-1980-139-01, /01T-0:on 801008,AE Notified of Improper Placement of Anchor 2Gll-RAD-A91,resulting in Seismic Vulnerability of Containment Isolation Valve 2G11-F020.Caused by Failure to Follow Original Design.Order to Close Valve Issued ‎ (← links)
  • 05000366/LER-1980-139, Forwards LER 80-139/01T-0 ‎ (← links)
  • 05000366/LER-1980-130-03, /03L-0:on 800913,during Steady State Operation, 2P33-P001A,primary Containment Hydrogen & Oxygen Analyzer Was Discovered Inoperable.Cause Not Determined.Analyzer Was Adjusted & Currently Operating Properly ‎ (← links)
  • 05000366/LER-1980-130, Forwards LER 80-130/03L-0 ‎ (← links)
  • 05000366/LER-1980-131-03, /03L-0:on 800909,reactor Pressure Switch 2B31-N018A Actuated at 162 Psig Rather than 135 Psig.Caused by Setpoint Drift.Switch Recalibr & Tested Successfully ‎ (← links)
  • 05000366/LER-1980-131, Forwards LER 80-131/03L-0 ‎ (← links)
  • 05000366/LER-1980-127-03, /03L-0:on 800830,during Normal operation,2C Diesel Generator Failed to Start.Cause Not Known.Investigation Initiated & Generators Tested Every Three Days.Updated Rept to Be Submitted Pending Results ‎ (← links)
  • 05000366/LER-1980-132, Forwards LER 80-132/03L-0 ‎ (← links)
  • 05000366/LER-1980-127, Forwards LER 80-127/03L-0 ‎ (← links)
  • 05000366/LER-1980-105-03, /03L-0:on 800821,nitrogen Pressure Was Lost to Both Standby Liquid Control Sys Accumulators.Caused by a Test Valve Leak & B Test Valve Being Broken While Installing Test Gauge.Test Valves Replaced ‎ (← links)
  • 05000366/LER-1980-105, Forwards LER 80-105/03L-0 ‎ (← links)
  • 05000366/LER-1980-124-03, /03L-0:on 800813,during Surveillance of Torus Drywell Vacuum breakers,2T48-F323J Valve Failed to Give Proper Light Indication.On 800827,2T48-F323I Failed in Similar Manner.Cause Not Known ‎ (← links)
  • 05000366/LER-1980-124, Forwards LER 80-124/03L-0 ‎ (← links)
  • 05000321/LER-1980-098-03, /03L-0:on 800816,during HNP-1-3957,torus to Drywell Vacuum Breaker Operability Test,Closed Indication Lights on Valve 1T48-F323H Failed to Extinguish W/Valve in Full Open Position.Cause Not Known ‎ (← links)
  • 05000321/LER-1980-098, Forwards LER 80-098/03L-0 ‎ (← links)
  • 05000321/LER-1980-097-03, /03L-0:on 800815,during Reactor Operations at 2370 Mwt,Bldg Vent Radiation Monitor Sample Pump Failed.Caused by Moisture Swelling Pump Carbon Vanes.Pumps Rotated Daily to Prevent Recurrence ‎ (← links)
  • 05000321/LER-1980-097, Forwards LER 80-097/03L-0 ‎ (← links)
  • 05000366/LER-1980-136-01, /01T-0:on 800930,Bechtel Notified Util That Psw Div I Line Was Inadequately Supported When Subjected to OBE or DBE Loads.Caused by Failure to Install 3-directional Support.Support Installed ‎ (← links)
  • 05000366/LER-1980-136, Forwards LER 80-136/01T-0 ‎ (← links)
  • 05000321/LER-1980-108-03, /03L-0:on 800919,HPCI Sys Failed to Pass Operability Test & Tripped on Steam Line High Differential Pressure.Cause Unknown ‎ (← links)
  • 05000321/LER-1980-108, Forwards LER 80-108/03L-0 ‎ (← links)
  • 05000321/LER-1980-104-03, /03L-0:on 800826.during Annual Surveillance & Operability Testing,Five Snubbers Did Not Meet Acceptance Criteria.Caused by Seal Leakage as Snubbers Were Low on Fluid.Two Snubbers Were Reconditioned & Others Replaced ‎ (← links)
  • 05000321/LER-1980-103-03, /03L-0:on 800822,during Operation at 99% Power, Plant Svc Water Flow Was Restricted.Caused by Tripped Drive Mechanism & Coupling Failure of Strainers 1P41-D103A & 1P41- D103B.Breaker Reset & Coupling Repaired ‎ (← links)
  • 05000321/LER-1980-104, Forwards LER 80-104/03L-0 ‎ (← links)
  • 05000321/LER-1980-103, Forwards LER 80-103/03L-0 ‎ (← links)
  • 05000366/LER-1980-126-03, /03L-0:on 800824,during Steady State Operation at 1540 MW,2P33-P001A,primary Containment Hydrogen & Oxygen Analyzer Became Inoperable.Caused by Faulty Design of Regent Gas Flowmeter.Design Change Requested ‎ (← links)
  • 05000366/LER-1980-126, Forwards LER 80-126/03L-0 ‎ (← links)
  • 05000366/LER-1980-113, Forwards LER 80-113/03L-0 ‎ (← links)
  • 05000366/LER-1980-106-03, /03L-0:on 800728,w/reactor in Cold Shutdown, Potassium Sulfate,Natural Ascanite & Potassium Hydrogen Sulfite Deposits Discovered Around Seams on Sacrificial Shield.Cause Undetermined.Update Rept Will Be Submitted ‎ (← links)
  • 05000366/LER-1980-108-03, /03L-0:on 800720,during torus-drywell Vacuum Breaker Surveillance,Valves 2148-F323J,I & E Failed.Caused by Broken Air Lines at Air Cylinders & Faulty Air Control Valve.Defective Parts Replaced ‎ (← links)
  • 05000366/LER-1980-094-03, During torus-drywell Vacuum Breaker Surveillance,Valve 2T48-F323B Would Not Open. Caused by Broken Air Supply Line to Valve Air Cylinder.Line & Air Control Valve Replaced ‎ (← links)
  • 05000366/LER-1980-094, Forwards Updated LER 80-094/03L-1 ‎ (← links)
  • 05000366/LER-1980-108, Forwards LER 80-108/03L-0 ‎ (← links)
  • 05000321/LER-1980-083-03, /03L-0:on 800713,w/reactor Mode Switch in Run Mode at Power Level of 2241 Mwt,Surveillance Procedure HNP-1-3103 Not Performed within Required Grace Period.Caused by Personnel Error.Surveillance Immediately Performed ‎ (← links)
  • 05000321/LER-1980-083, Forwards LER 80-083/03L-0 ‎ (← links)
  • 05000321/LER-1980-085-03, /03L-0:on 800720,w/unit at 300 Mwt & O Mwe,Reactor Water Not Sampled & Analyzed for Chlorides & Ph.Caused by Personnel Oversight.Retraining Session for Responsible Employees Conducted ‎ (← links)
  • 05000321/LER-1980-085, Forwards LER 80-085/03L-0 ‎ (← links)
  • 05000366/LER-1980-107-03, /03L-0:on 800719,during Routine Power Ascension, Determined That Method for Verifying Jet Pump Operability Not in Compliance W/Tech Specs.Caused by Inaccurate Method Re Calculating Delta P Variance.Method Revised ‎ (← links)
  • 05000366/LER-1980-110-03, /03L-0:on 800722,during Normal Power Operation, Valve 2C11-F3006 Discovered Closed,Rendering Scram Discharge Vol High Level Rod Withdrawal Block Level Switch 2C11-N013E Inoperable.Caused by Personnel Valving Error ‎ (← links)
  • 05000366/LER-1980-110, Forwards LER 80-110/03L-0 ‎ (← links)
  • 05000321/LER-1980-087-01, /01T-0:on 800724 W/Unit Shut Down During IE Bulletin 79-14 Review,Ae Found Anchor Inadequately Supported.Caused by Inadequate Design of Original Support. Design Modified & Anchor Replaced ‎ (← links)
  • 05000321/LER-1980-086-01, /01T-0:on 800724,w/Unit 1 in Cold Shutdown,Support P52-F512-H704 Determined Missing on Instrument Air Sys. Caused by Inadequate Small Bore Piping Design.New Hanger Design Supplied & Support Installed ‎ (← links)
  • 05000321/LER-1980-086, Forwards LER 80-086/01T-0 ‎ (← links)
  • 05000321/LER-1980-087, Forwards LER 80-087/01T-0 ‎ (← links)
  • 05000321/LER-1980-082-03, /03L-0:on 800711,during Startup,Cooling Water to LPCI Inverter Room Cooler Was Isolated on Two Occasions,Lpci B Inverter Tripped,Making Loop B of RHR Inoperable.Caused by High Ambient Temp in Inverter Room.Inverter re-energi ‎ (← links)
  • 05000321/LER-1980-082, Forwards LER 80-082/03L-0 ‎ (← links)
  • 05000321/LER-1980-074, Forwards LER 80-074/03L-0 ‎ (← links)
  • 05000321/LER-1980-070-03, /03L-0:on 800626,during Hanger Insp on Class One Piping,Snubber 1E41-HPSE-H13 Discovered to Have Oil Leak. Caused Attributed to Seal Leakage on Snubber.Failed Snubber Replaced ‎ (← links)
  • 05000321/LER-1980-070, Forwards LER 80-070/03L-0 ‎ (← links)
  • 05000321/LER-1980-077-03, /03L-0:on 800708,during High Reactor Pressure Instrumentation Functional Test & Calibr,Found That Pressure Switch 1B21-NO23B Actuated in Excess of Tech Specs.Caused by Setpoint Drift.Switch Recalibr & Successfully Tested ‎ (← links)
  • 05000321/LER-1980-081, Forwards LER 80-081/03L-0 ‎ (← links)
  • 05000366/LER-1980-098-03, /03L-0:on 800626,w/reactor at 99% Steady State Power,Hpci Pump Failed Operability.Caused by HPCI Pump Suction Pressure Transmitter 2E41-N019 Drifting Out of Tolerance Causing 2E41-R606 to Indicate Incorrectly ‎ (← links)
  • 05000366/LER-1980-098, Forwards LER 80-098/03L-0 ‎ (← links)
  • 05000321/LER-1980-067-03, /03L-0:on 800628,during Diesel Generator Manual Start Procedure,B Generator Tripped.Cause Undertermined. Probable Cause Is Spurious Alarm or Crankcase Pressure. Generator Proved Operable & Returned to Svc ‎ (← links)
  • 05000321/LER-1980-075-03, /03L-0:on 800626,w/mode Switch in Run,Primary Containment Temp recorder,1T47-R611,found to Be Intermittently Failing to Print.Caused by Commutation Motor Gearbox Failure.Balancing Arm Magnetic Switch Repaired ‎ (← links)
  • 05000321/LER-1980-075, Forwards LER 80-075/03L-0 ‎ (← links)
  • 05000366/LER-1980-095-03, /03L-0:on 800617,during HNP-2-3123,loop Control Sys Blower Operability,Inboard Leadkage Control Sys Flow Indicator a Pegged Upscale & Would Not Return to Zero.Caused by Bent Flow Element Float.Float Straightened & Cleaned ‎ (← links)
  • 05000321/LER-1980-072-03, /03L-0:on 800624,reactor Bldg Vent Radiation Monitor Sample Pump Failed in Run Mode at 2426 Mwt.Caused by Swelled Carbon Vanes.Pumps Will Be Switched Out More Often to Minimize Moisture Buildup & Improve Reliability ‎ (← links)
  • 05000321/LER-1980-072, Forwards LER 80-072/03L-0 ‎ (← links)
  • 05000321/LER-1980-061-01, /01T-0:on 800622,while Preparing to Run RHR Sys Per HNP-1-6006,operator Discovered Loop B Min Flow Manual Valves E11-F0l8 B & D Closed.Caused by Operator Closing Valves to Prevent Reactor Water from Going to Torus ‎ (← links)
  • 05000366/LER-1980-091-03, /03L-0:on 800605,while Pulling Rods to Increase Power,Level Core Max Fraction of Limiting Power Density Found Higher than Tech Spec Allowed.Caused by Combination of Low Feedwater & Low Xenon.Nrc Reviewed Problem ‎ (← links)
  • 05000321/LER-1980-061, Forwards LER 80-061/01T-0 ‎ (← links)
  • 05000366/LER-1980-091, Forwards LER 80-091/03L-0 ‎ (← links)
  • 05000321/LER-1980-063-03, /03L-0:on 800612,while Performing Surveillance Procedure HNP-1-3102,reactor High Pressure Shutdown Cooling Mode Switch 1B31-N0l8B Found to Actuate Higher than Limit. Caused by Setpoint Drift.Switch Recalibr ‎ (← links)
  • 05000321/LER-1980-063, Forwards LER 80-063/03L-0 ‎ (← links)
  • 05000321/LER-1980-060-03, /03L-0:on 800603,w/reactor in Cold Shutdown,Insp Revealed Two Hanger Mods to HVAC Room Sprinkler Required for Seismic Qualification Were Incomplete.Caused by Failure to Implement Hanger Mod Sketches Contrary to Procedure HNP ‎ (← links)
  • 05000321/LER-1980-060, Forwards LER 80-060/03L-0 ‎ (← links)
  • 05000321/LER-1980-062, Forwards LER 80-062/01T-0 ‎ (← links)
  • 05000366/LER-1980-092-03, /03L-0:on 800611,during Surveillance Checks at steady-state Power,Operators Found B Rod Block Monitor Bypassed While Selecting Rods.Caused by Component Failure. Power Supply Repaired & Returned to Svc ‎ (← links)
  • 05000366/LER-1980-092, Forwards LER 80-092/03L-0 ‎ (← links)
  • 05000321/LER-1980-065-03, /03L-0:on 800614,while Inerting Primary Containment,Nitrogen Storage Tank Was Found to Contain Less than 2,000 Gallons Nitrogen.Caused by Increased Use of Nitrogen ‎ (← links)
  • 05000366/LER-1980-090-03, /03L-0:on 800604,while Starting Up Unit 2 Reactor, HPCI Auto Isolation Logic for Channel B Did Not Reset Until Reactor Pressure Was 153 Psig.Caused by Calibr Procedure W/Overly Conservative Setpoint.Setpoint Changed ‎ (← links)
  • 05000366/LER-1980-090, Forwards LER 80-090/03L-0 ‎ (← links)
  • 05000321/LER-1980-057-03, /03L-0:on 800525,while Performing Procedure HNP-1-1114,RHR Shutdown Cooling Mode,Shutdown Cooling Suction Valve Failed to Open.Caused by Faulty Auxiliary Contact Block.Contact Block Replaced ‎ (← links)
  • 05000321/LER-1980-057, Forwards LER 80-057/03L-0 ‎ (← links)
  • 05000321/LER-1980-055-01, /01T-0:on 800531,w/Unit 1 in Cold Shutdown,Insp of Mechanical Snubbers Was Performed & 45 Out of 61 Snubbers Were Found Locked Up.Caused by Internal Corrosion.Snubbers Replaced ‎ (← links)
  • 05000366/LER-1980-086-03, /03L-0:on 800523,during Power Increase,Psw Flow Was Throttled to Reduce Dilution Flow,Reducing Cooling Capacity.Dw Temp Exceeded Specs.Caused by Operator Throttling Svc Water Flow Through Plant ‎ (← links)
  • 05000321/LER-1980-055, Forwards LER 80-055/01T-0 ‎ (← links)
  • 05000366/LER-1980-086, Forwards LER 80-086/03L-0 ‎ (← links)
  • 05000321/LER-1980-052-03, /03L-0:on 800520,during Unit Startup,Hpci Pump Was in Progress Prior to Declaring HPCI Operable.Caused by Defective Ramp Generator on Woodward Turbine Controls.Ramp Generator & Egm Control Box Replaced ‎ (← links)
  • 05000321/LER-1980-052, Forwards LER 80-052/03L-0 ‎ (← links)
  • 05000321/LER-1980-051-03, /03L-0:on 800514,while Investigating Tubing Layout,Run of Tubing That Tapes Into Primary Containment Not Supported Seismically as Required.Caused by Installation Error.Tubing Will Be Resupported Per Seismic Specs ‎ (← links)
  • 05000321/LER-1980-051, Forwards LER 80-051/03L-0 ‎ (← links)
  • 05000321/LER-1980-054-01, /01T-0:on 800529,while Repairing RHR Inboard Injection Valve,Engineering Staff Confirmed That Cable Separation Problem Existed Re Containment Atmospheric Control Sys.Caused by Design & Installation Error ‎ (← links)
  • 05000366/LER-1980-083-03, /03L-0:on 800514,w/reactor in Startup Mode, Personnel Observed That Indicating Lights for 2D RHR Pump Suction Valves Were Extinguished.Valves Were Not Operable from Control Switches.Caused by Broken Limit Switch Rotors ‎ (← links)
  • 05000366/LER-1980-083, Forwards LER 80-083/03L-0 ‎ (← links)
  • 05000321/LER-1980-050-03, /03L-0:on 800514,while Performing Reactor Startup, Reactor Core Isolation Cooling Turbine Tripped While Attempting Manual Start.Cause Unknown.Trip May Have Been Due to Overspeed.Special Committee Will Perform in-depth Study ‎ (← links)
  • 05000321/LER-1980-053-01, /01T-0:on 800524,during Normal Operation, Discovered That Loss of Power to Essential Motor Control Ctr 1B W/Recirculation Discharge Line Break Would Render Both Loops of RHR & Loop a of Core Spray Inoperable ‎ (← links)
  • 05000321/LER-1980-050, Forwards LER 80-050/03L-0 ‎ (← links)
  • 05000321/LER-1980-053, Fowards LER 80-053/01T-0 ‎ (← links)
  • 05000321/LER-1980-047, Forwards LER 80-047/03L-0 ‎ (← links)
  • 05000366/LER-1980-073-03, /03L-0:on 800425,while Performing Surveillance on Primary Containment Hydrogen Recombiner Sys,B Recombiner Failed to Operate.Cause Unknown.Combiner Tested & Proven Operable ‎ (← links)
  • 05000366/LER-1980-073, Forwards LER 80-073/03L-0 ‎ (← links)
  • 05000366/LER-1980-074-03, /03L-0:on 800427,core Max Fraction of Limiting Power Density Found in Excess of Tech Spec.Cause Not Stated. Average Power Range Monitor Adjusted,Power Reduced & Process Computer Updated,Run & Verified ‎ (← links)
  • 05000366/LER-1980-074, Forwards LER 80-074/03L-0 ‎ (← links)
  • 05000366/LER-1980-075-03, /03L-0:on 800428 Core Max Fraction of Limiting Power Density in Excess of Tech Specs.Corrective Action Failed to Lower Power Density.Caused by Lower than Equilibrium Xenon Distribution During Startup ‎ (← links)
  • 05000366/LER-1980-075, Forwards LER 80-075/03L-0 ‎ (← links)
  • 05000321/LER-1980-042-03, /03L-0:on 800429,valve 1E11-FO16A,RHR Outboard Containment Spray,Failed to Open.Caused by Sheared Key Between Motor Shaft & Pinion Gear.Pinon Gear & Valve Key Replaced & Valve Returned to Svc ‎ (← links)
  • 05000321/LER-1980-049-01, /01T-0:on 800513,MSIV Auto Closed on High Steamline Flow During HNP-1-3119 Performance Causing Rx Scram & HPCI Initiation.Hpci Spurious Isolation Signal Cause Not Known & Investigation Continuing ‎ (← links)
  • 05000321/LER-1980-042, Forwards LER 80-042/03L-0 ‎ (← links)
  • 05000321/LER-1980-049, Forwards LER 80-049/01T-0 ‎ (← links)
  • 05000321/LER-1980-046, Forwards LER 80-046/03L-0 ‎ (← links)
  • 05000366/LER-1980-058-03, /03T-0:on 800505,while Comsip,Inc Was Defect Testing,Discharge Valve to Analyzer Sample Pump Isolated, Which Deadheaded Pump.Caused by Design Defect.Design Change & Matl Requisition Written to Install Bypass ‎ (← links)
  • 05000366/LER-1980-064-03, /03L-0:on 800419,while Performing MSIV Leakage Control Sys LSFT Per HNP-2-3016,bleed Valve 2E32-F001B Indicating Lights Went Out.Caused by Undersized Thermal Overload Switch.Switch Replaced & Valve Functioned Property ‎ (← links)
  • 05000366/LER-1980-064, Forwards LER 80-064/03L-0 ‎ (← links)
  • 05000366/LER-1980-061-03, /03L-0:on 800417,during Review of Tech Spec Surveillance Requirements,Discovered HNP-2-3656 Test Not Performed at Required Frequency.Caused by Personnel Oversight.Test Performed Prior to Startup ‎ (← links)
  • 05000366/LER-1980-061, Forwards LER 80-061/03L-0 ‎ (← links)
  • 05000321/LER-1980-040-03, /03L-0:on 800423,during Run Mode,Drywell/Torus Differential Prv Opened.Caused by Design Problem W/Sensing Line for Pressure Switches.Control Switch for Differential Pressure Pump Placed in Manual Position Until Design Change ‎ (← links)
  • 05000321/LER-1980-040, Forwards LER 80-040/03L-0 ‎ (← links)
  • 05000366/LER-1980-062, Forwards LER 80-062/03L-0 ‎ (← links)
  • 05000366/LER-1980-067, Forwards LER 80-067/03L-0 ‎ (← links)
  • 05000366/LER-1980-078-03, /03L-0:on 800419,while Performing Leakage Control Sys Test,Initiation Permissive Contacts Failed to Open. Caused by Relay Failure.Relay Was Replaced & Retested W/ Satisfactory Results ‎ (← links)
  • 05000366/LER-1980-078, Forwards LER 80-078/03L-0 ‎ (← links)
  • 05000366/LER-1980-060, Forwards LER 80-060/03L-0 ‎ (← links)
  • 05000321/LER-1980-041-03, /03L-0:on 800425,observation of RHR a Loop Heat Exchange Pressure Indicator Indicated a Loop Pressure Was Increasing Above Normal Jockey Pump Charging Pressure. Caused by Leaking Isolation Valve ‎ (← links)
  • 05000321/LER-1980-041, Forwards LER 80-041/03L-0 ‎ (← links)
  • 05000366/LER-1980-066-03, /03L-0:on 800422,while Unit Was in Startup & Hot Standby Mode,Reactor Core Isolation Cooling valve,2E51-F045, Was Operated Causing Spurious HPCI Auto Isolation,During Performance of Surveillance Procedure HNP-2-3405 ‎ (← links)
  • 05000366/LER-1980-066, Forwards LER 80-066/03L-0 ‎ (← links)
  • 05000366/LER-1980-065-03, /03L-0:on 800419,while Drywell dihydrogen-dioxide Analyzers Were Isolated,Analyzer Vacuum Pumps Deadheaded, Resulting in Burst Diaphragms on a Analyzer.Caused by Defective Diaphragms.Diaphragms Replaced ‎ (← links)
  • 05000366/LER-1980-065, Forwards LER 80-065/03L-0 ‎ (← links)
  • 05000366/LER-1980-069-03, /03L-0:on 800421,while Performing HPCI Sys Rated Flow Test 2E41-F012,min Flow Control Valve Began Cycling from Full Closed to Full Open for No Apparent Reason.Caused by Component Failure.Flow Switch Replaced & Returned to Sv ‎ (← links)
  • 05000366/LER-1980-069, Forwards LER 80-069/03L-0 ‎ (← links)
  • 05000366/LER-1980-019-03, /03L-0:on 800227,during Instrument Check,A Drywell H2O2 Analyzer Recorder Found Giving Erroneous Reading. Caused by Diaphragm Failure in a Analyzer Vacuum Pump. Diaphragms Replaced.Analyzer Calibr & Returned to Svc ‎ (← links)
  • 05000366/LER-1980-019, Forwards LER 80-019/03L-0 ‎ (← links)
  • 05000321/LER-1980-020-03, /03L-0:on 800308,during Normal operation,180 Gallons of Radwaste Was Released to River W/O Prior Analysis Per Tech Specs.Caused by Technician Error. Reanalysis Showed ETS Not Exceeded ‎ (← links)
  • 05000321/LER-1980-020, Forwards LER 80-020/03L-0 ‎ (← links)
  • 05000366/LER-1980-020-03, /03L-0:on 800229,during Normal Operation,While Performing HPCI Exhaust Diaphragm Pressure Switch Surveillance,Two Switches Exceeded Tech Specs.Caused by Instrument Drift.Switches Recalibr ‎ (← links)
  • 05000366/LER-1980-020, Forwards LER 80-020/03L-0 ‎ (← links)
  • 05000366/LER-1980-028-03, /03L-0:on 800228,during Instrument Check,B Drywell H2-02 Analyzer Recorder Was Found Giving Erroneous Reading. Caused by Leakage in Sys.Leak Repaired.Analyzer Calibr & Returned to Svc ‎ (← links)
  • 05000366/LER-1980-028, Forwards LER 80-028/03L-0 ‎ (← links)
  • 05000366/LER-1980-099, Forwards LER 80-099/03L-0 ‎ (← links)
  • 05000366/LER-1980-103-01, /01T-0:on 800709,determined 2E11 NO10A Through D High Drywall Pressure Switches Outside Tech Spec Limit. Caused by Setpoint Drift.Switches Recalibr ‎ (← links)
  • 05000366/LER-1980-097-03, /03L-0:on 800625,while Performing Surveillance Procedure HNP-2-3307,HPCI Steam Line Flow Ft&C,Flowswitch 2E41-N004 Setpoints Exceeded Tech Spec Limits.Caused by Setpoint Drift.Switch Was Recalibr & Returned to Svc ‎ (← links)
  • 05000366/LER-1980-097, Forwards LER 80-097/03L-0 ‎ (← links)
  • 05000321/LER-1980-080-03, /03T-0:on 800706,w/reactor in Hot Standby & Reactor Water Cleanup in Normal Operation,Water Found Coming from Cleanup Line Insulation,Due to Crack in Heat Affected Zone of Spool Piece.Cause Unknown.Piece Replaced ‎ (← links)
  • 05000321/LER-1980-080, Forwards LER 80-080/03T-0 ‎ (← links)
  • 05000321/LER-1980-078-03, /03L-0:on 800630 & 0701,during Hot Standby Operation,Primary Containment Oxygen Concentration Exceeded Limit.Caused by Reactor Bldg to Torus Vacuum Breaker Valve Opening & Oxygen Analyzers Not Calibr.Monitoring Increased ‎ (← links)
  • 05000321/LER-1980-078, Forwards LER 80-078/03L-0 ‎ (← links)
  • 05000321/LER-1980-076-01, /01T-0:on 800701,while Reactor Was at Hot Standby for Hpci/Reactor Core Isolation Cooling Testing,Site Notified by Ae That Listed RHR Supports Would Not Adequately Support All Design Based Loads ‎ (← links)
  • 05000321/LER-1980-071-03, /03L-0:on 800621,while Performing Daily Rounds Procedure,Drywell Temp recorder,1T47-R611,found Stamping Upscale.Caused by Faulty Drive Motor Starting Capacitor. Capacitor Replaced & Recorder Returned to Svc ‎ (← links)
  • 05000321/LER-1980-071, Forwards LER 80-071/03L-0 ‎ (← links)
  • 05000366/LER-1980-096-03, /03L-0:on 800627,w/reactor Mode Switch in Run, Reactor Bldg to Torus Vacuum Breaker Isolation Valve, 2T48-F311,failed Open.Caused by Failure of Delta Pressure switch,2T48-N211,reactor Bldg to Delta Pressure Switch ‎ (← links)
  • 05000321/LER-1980-073-03, /03L-0:on 800624,w/reactor at 100% Power,Drywell to Torus Temp Recorder Noted Not Stamping or Changing Position.Caused by Faulty Stepping Advance & Chart Drive Motors.Repaired & Replaced Motors ‎ (← links)
  • 05000366/LER-1980-096, Forwards LER 80-096/03L-0 ‎ (← links)
  • 05000321/LER-1980-073, Forwards LER 80-073/03L-0 ‎ (← links)
  • 05000366/LER-1980-100-01, /01T-0:on 800702,during Performance of High Drywell Pressure Surveillance Procedures,Found Switches Set Above Tech Spec Limit.Apparently Caused by Setpoint Drift. Switches Recalibr ‎ (← links)
  • 05000321/LER-1980-068-03, /03L-0:on 800619,1P33-R601 Drywell Dihydrogen/ Dioxide Recorders Observed Reading Abnormally High Oxygen Content.Caused by Water Present in Dioxide Analyzer Sample Line.Design Change Implemented ‎ (← links)
  • 05000321/LER-1980-068, Forwards LER 80-068/03L-0 ‎ (← links)
  • 05000321/LER-1980-058, Forwards LER 80-058/03L-0 ‎ (← links)
  • 05000366/LER-1980-095, Forwards LER 80-095/03L-0 ‎ (← links)
  • 05000321/LER-1980-066-03, /03L-0:on 800615,diesel Generator 1C Declared Inoperable When Low Air Pressure Alarm Received W/Reactor in Run Mode.Caused by Valves Failing in Unloaded Mode.Unloader Valves Replaced & Air Receivers Returned to Proper Pressu ‎ (← links)
  • 05000321/LER-1980-066, Forwards LER 80-066/03L-0 ‎ (← links)
  • 05000321/LER-1980-059-03, /03L-0:on 800617,approx 2-h After Performing Suppression Chamber to Drywell Vacuum Breaker Sys Operability Test,Closed Indicating Light for Valve IT48- F323F Found Extinguished.Cause Unknown.Testing Continues ‎ (← links)
  • 05000321/LER-1980-059, Forwards LER 80-059/03L-0 ‎ (← links)
  • 05000321/LER-1980-064-03, /03L-0:on 800613,during Startup,Reactor Core Isolation Cooling Sys Initiated to Maintain Reactor Water Level,But Failed to Respond to Speed Control.Caused by Egr Not Responding & Limit Switch Being Out of Adjustment ‎ (← links)
  • 05000321/LER-1980-064, Forwards LER 80-064/03L-0 ‎ (← links)
  • 05000321/LER-1980-056-03, /03L-0:on 800205,standby Gas Treatment Sys Ventilation & Valve Operability Procedure,Changed on 800122, Had Not Been PRB Reviewed or Approved within 14 Days as Required by Tech Spec.Caused by Personnel Error ‎ (← links)
  • 05000321/LER-1980-056, Forwards LER 80-056/03L-0 ‎ (← links)
  • 05000366/LER-1980-068-03, While Performing Primary Containment Recombiner Sys Functional Test,Recombiner Sheath Temp Failed to Remain within Tech Spec.Caused by Setpoint Being Set Too High ‎ (← links)
  • 05000366/LER-1980-068, Forwards Revised LER 80-068/03X-1 ‎ (← links)
  • 05000366/LER-1980-089-03, /03L-0:on 800530,while Performing HNP-2-3315,torus Suction Valves 2E41-F041 & 2E41-F042 Failed When Given Open Signal.Torus Valves Shorted Out Due to Condensation in HPCI Room.Cause of Condensation Was Steam Leakage Around S ‎ (← links)
  • 05000366/LER-1980-089, Forwards LER 80-089/03L-0 ‎ (← links)
  • 05000366/LER-1980-087, Forwards LER 80-087/03L-0 ‎ (← links)
  • 05000366/LER-1980-088-03, /03L-0:on 800529,while Performing HNP-2-3154, Reactor Pressure Vessel Level Instrument (LPCI) Ft&C, Switch 2 on 2B21-NO31A Failed.Caused by Switch Being Out of Adjustment Due to Loose Screw.Switch Readjusted ‎ (← links)
  • 05000366/LER-1980-054-03, /03L-0:on 800524,while Performing Calibr of Both Primary Containment Purge Vacuum Breaker Pressure Switches, 2T48-N211 Found Inoperable.Caused by Personnel Error.Stuck Switch Removed & Repaired.Switch Wiring Corrected ‎ (← links)
  • 05000366/LER-1980-054, Forwards LER 80-054/03L-0 ‎ (← links)
  • 05000366/LER-1980-081-03, /03L-0:on 800521,w/reactor Near Rated Power,Loca Signal Accidentally Initiated Resulting in Reactor Scram. Outboard MSIV Failed to Auto Close.Caused by Faulty O-ring in Valve Air Operating Solenoid ‎ (← links)
  • 05000366/LER-1980-053, Forwards Updated LER 80-053/03X-2 ‎ (← links)
  • 05000321/LER-1980-043-03, /03L-0:on 800503,while at Steady State Power, Torus Air & Water Temp Recorder Was Discovered to Be Stamping Erratic & Upscale.Caused by Faulty Balancing Motor in Recorder.Balancing Motor Replaced ‎ (← links)
  • 05000366/LER-1980-055-03, /03L-0:on 800506,while Performing Reactor Core Isolation Cooling Steam Line Pressure Instrument Functional Test,Outboard Steam Supply Line Isolation valve,2E51-F608, Failed to Operate.Caused by Failed Operator Torque Switch ‎ (← links)
  • 05000321/LER-1980-043, Forwards LER 80-043/03L-0 ‎ (← links)
  • 05000366/LER-1980-082-03, /03L-0:on 800509,during Normal Reactor Shutdown, Primary Containment Purge Sys Operation Exceeded Tech Spec Limits for Primary Containment Integrity.Caused by Personnel Error ‎ (← links)
  • 05000366/LER-1980-055, Forwards LER 80-055/03L-0 ‎ (← links)
  • 05000366/LER-1980-082, Forwards LER 80-082/03L-0 ‎ (← links)
  • 05000321/LER-1980-048-03, /03L-0:on 800509,while Performing ASME Inservice Pump Operability Test on Plant Svc Water Pump 1B,discovered That Max Attainable Flow Was 3600 Gpm.Caused by Faulty Pressure Indicator on Pump Discharge ‎ (← links)
  • 05000366/LER-1980-077, Forwards LER 80-077/03L-0 ‎ (← links)
  • 05000321/LER-1980-048, Forwards LER 80-048/03L-0 ‎ (← links)
  • 05000366/LER-1980-080-03, /03L-0:on 800508,during Surveillance Testing,Found That Barksdale Pressure Switches 2B31-N018A & B Were Not within Allowable Tech Specs.Caused by Instrument Drift. Switches Recalibr ‎ (← links)
  • 05000366/LER-1980-080, Forwards LER 80-080/03L-0 ‎ (← links)
  • 05000366/LER-1980-079-03, /03L-0:on 800507,inboard Isolation Valve 2E41-F006 Opened But Failed to Close Automatically.Caused by Steam Leaking Around Pressure Seal Allowing Water to Enter & Collect in Motor,Causing Windings to Short Out ‎ (← links)
  • 05000366/LER-1980-079, Forwards LER 80-079/03L-0 ‎ (← links)
  • 05000321/LER-1980-044-03, /03L-0:on 800506,during Normal Full Power Operation,Primary Containment Oxygen Concentration Exceeded Allowable Limit.Caused by Operator Failure to Initiate Dinitrogen Makeup to Drywell Prior to Reaching Limit ‎ (← links)
  • 05000321/LER-1980-044, Forwards LER 80-044/03L-0 ‎ (← links)
  • 05000366/LER-1980-076-03, /03L-0:on 800429,during Performance of Control Rod Driveline Hydraulic Control Unit Pressure Indicator & Switch Calibr procedure,HNP-2-5329,high Percentage of Pressure Switches Found Outside Limit.Caused by Instrument Drift ‎ (← links)
  • 05000366/LER-1980-076, Forwards LER 80-076/03L-0 ‎ (← links)
  • 05000321/LER-1980-045-01, /01T-0:on 800510,while Operating RHR Svc Water pump,1E11-C001B,major Bearing Cooling Water Supply Valves to Pumps a & B Found Closed.Caused Unknown.Valves for All Four Pumps Locked Open ‎ (← links)
  • 05000321/LER-1980-045, Forwards LER 80-045/01T-0 ‎ (← links)
  • 05000321/LER-1980-023, Forwards LER 80-023/03L-0 ‎ (← links)
  • 05000366/LER-1980-018-03, /03L-0:on 800220,during Routine Surveillance of torus-drywell Vacuum Breaker Valves,Valve 2T48-F323 Failed to Open.Caused by Foreign Object in Valve Cylinder Air Supply Line.Air Line Purged & Valve Satisfactorily Tested ‎ (← links)
  • 05000321/LER-1980-024-03, /03L-0:on 800229,while Performing Manual Start on 1C Diesel Generator W/Reactor at 99%,discovered Manual Voltage Regulator to Be Inoperable.Caused by Failure of Diodes Supplying Voltage to Manual Adjusting Motor ‎ (← links)
  • 05000366/LER-1980-059-03, /03L-0:on 800416,w/unit in Cold Shutdown,Msiv Found W/Nonqualified Limit Switch.Caused by Installation Error.Limit Switch Was Replaced W/Qualified Model ‎ (← links)
  • 05000366/LER-1980-056, Forwards LER 80-056/03L-0 ‎ (← links)
  • 05000366/LER-1980-050, Forwards LER 80-050/03L-0 ‎ (← links)
  • 05000366/LER-1980-072-03, /03L-0:on 800425,while Performing Surveillance Procedure HNP-2-3307,contact 2 Failed to Actuate at Set Point.Caused by Shorted Switch Inside Instrument Case.Switch Was Replaced ‎ (← links)
  • 05000366/LER-1980-052-03, /03L-0:on 800408,during Maint of Standby Gas Treatment Sys,Power Cables to Heaters & Fans Found Undersized.Caused by Design Error.Cables Will Be Replaced by 800601 ‎ (← links)
  • 05000366/LER-1980-071-03, /03L-0:on 800424,during Routine Reactor Startup Activities,Reactor Core Isolation Cooling Leak Detection Logic Power Failure Alarm Was Received.Caused by Component Failure.Inverter Supporting Power Was Replaced ‎ (← links)
  • 05000366/LER-1980-052, Forwards LER 80-052/03L-0 ‎ (← links)
  • 05000366/LER-1980-070-03, /03L-0:on 800422,while Performing Surveillance Procedure HNP-2-3405,reactor Core Isolation Cooling Trip & Throttle Valve Closed When Turbine Speed Reached 2,000 Rpm. Cause Not Identified.Trip & Throttle Valve Reset ‎ (← links)
  • 05000366/LER-1980-070, Forwards LER 80-070/03L-0 ‎ (← links)
  • 05000366/LER-1980-047-03, /03L-0:on 800405,while Performing Remote Shutdown Panel Instrument Checks,Torus Water Level Instrument 2T48-R070 Found Downscale.Caused by Technician Failing to Verify Markings of Transmitter 2T48-N070 W/Proper Tubing ‎ (← links)
  • 05000366/LER-1980-047, Forwards LER 80-047/03L-0 ‎ (← links)
  • 05000321/LER-1980-036-03, /03L-0:on 800409,during Steady Power Operation, Fire Water Storage Tank Levels Dropped Below Tech Spec Limits.Caused by Separation of Fire Main Pipe Fitting Due to Settling of Concrete Drainage Ditch ‎ (← links)
  • 05000321/LER-1980-036, Forwards LER 80-036/03L-0 ‎ (← links)
  • 05000321/LER-1980-037, Forwards LER 80-037/03L-0 ‎ (← links)
  • 05000366/LER-1980-048, Forwards LER 80-048/03L-0 ‎ (← links)
  • 05000366/LER-1980-051-03, /03L-0:on 800409,while Shutdown for Surveillance/ Vent Header Deflector Installation Outage,Dirty Radwaste Discharge Isolation Valve 2G11-F004 Found Leaking in Excess of Spec.Caused by Improper Sealing of Valve Gate ‎ (← links)
  • 05000321/LER-1980-033-03, /03L-0:on 800402,while Inspecting CST Access Stairway,Cold Joint Between Original Base Slab & Added Slab for Retaining Walls Lacked Watertight Seal.Caused by Const Oversight.Maint Request Issued ‎ (← links)
  • 05000321/LER-1980-033, Forwards LER 80-033/03L-0 ‎ (← links)
  • 05000321/LER-1980-038-03, /03L-0:on 800327,while Performing Reactor Protection Sys Surveillance HNP-1-3456,output Breaker of a Reactor Motor Generator Tripped & Would Not Reset.Caused by Mechanical Reset Latch Failing to Reset.Breaker Replaced ‎ (← links)
  • 05000321/LER-1980-039-01, /01T-0:on 800411,discovered That Psw & RHR-SW Pump Motor Cooling Water Supply Did Not Meet Single Failure Criterion.Caused by Initial Design Not Specifying Divisional Water Cooling Water Supply to Pumps ‎ (← links)
  • 05000321/LER-1980-038, Forwards LER 80-038/03L-0 ‎ (← links)
  • 05000321/LER-1980-039, Forwards LER 80-039/01T-0 ‎ (← links)
  • 05000366/LER-1980-058-01, /01T-0:on 800416,while Performing 18-month Surveillance Procedure HNP-2-3830,discovered Diesel Generator B Output Breaker Would Not Trip Upon Shutdown Signal from Auto Stop Circuitry.Caused by Design Change ‎ (← links)
  • 05000366/LER-1980-058, Forwards LER 80-058/01T-0 ‎ (← links)
  • 05000366/LER-1980-042-03, /03L-0:on 800328,while Performing Hydraulic Visual Insp,Snubber 2T46-R65B Found Low on Fluid.During Subsequent Testing,Snubber Failed to Meet Acceptance Criteria on Lockup Velocity.Caused by Seal Failure ‎ (← links)
  • 05000366/LER-1980-042, Forwards LER 80-042/03L-0 ‎ (← links)
  • 05000366/LER-1980-049-03, /03L-0:on 800407,while Performing Relief Valve Test Procedure,Standby Liquid Control Pump B Discharge Relief Valve 2C41-F029B Failed to Operate at Required Pressure.Caused by Setpoint Drift on Relief Valve ‎ (← links)
  • 05000366/LER-1980-049, Forwards LER 80-049/03L-0 ‎ (← links)
  • 05000321/LER-1980-034, Forwards LER 80-034/03L-0 ‎ (← links)
  • 05000321/LER-1980-032, Forwards LER 80-032/03L-0 ‎ (← links)
  • 05000321/LER-1980-032-03, /03L-0:on 800402,during Normal Operation,Primary Containment Oxygen Concentration Exceeded Tech Spec Limit. Caused by Air in-leakage Across Seals of Torus to Drywell Delta Pumps.Pump Seals Greased & in-leakage Stopped ‎ (← links)
  • 05000366/LER-1980-041-03, /03L-0:on 800401,during Performance of LLRT, Feedwater Isolation Valve 2B21-F077A Did Not Have Acceptable Results During Initial Test.Caused by Natural Wear & Tear to Valve Seat.Leak Rate Limit Met by Corrective Maint ‎ (← links)
  • 05000366/LER-1980-041, Forwards LER 80-041/03L-0 ‎ (← links)
  • 05000366/LER-1980-045-01, /01T-0:on 800404,while in Cold Shutdown,Leak Rate Test Was Performed on Auto Depressurization Sys Valves Air Supply Accumulator Check Valves.Leaks Were Beyond Acceptable Rate.Cause Unknown.Valves Will Be Repaired Prior to St ‎ (← links)
  • 05000366/LER-1980-035-03, /03L-0:on 800321,during Calibr Procedure HNP-2-5329,all But Six Accumulator Pressure Switches Found to Be Outside Tech Specs.Caused by Personnel Error & Component Failure.Pressure Switches Recalibr ‎ (← links)
  • 05000366/LER-1980-035, Forwards LER 80-035/03L-0 ‎ (← links)
  • 05000321/LER-1980-029, Forwards LER 80-029/03L-0 ‎ (← links)
  • 05000321/LER-1980-030-03, /03L-0:on 800330,w/mode Switch in Run Position & Reactor at 2,432 Mwt,Discovered Analyzer B of Primary Containment Hydrogen & Oxygen Analyzer Inoperable.Caused by Personnel Error.Problem Corrected.Analyzer Returned to Svc ‎ (← links)
  • 05000366/LER-1980-043, Forwards LER 80-043/03L-0 ‎ (← links)
  • 05000321/LER-1980-030, Forwards LER 80-030/03L-0 ‎ (← links)
  • 05000366/LER-1980-034-03, /03L-0:on 800320,while Performing Calibr on Main Steam Line,Temp Switches 2B21-N010A,N013A & N013D Found to Have Bad Repeatability.Caused by Instrument Drift.Calibr Procedure Revised ‎ (← links)
  • 05000366/LER-1980-034, Forwards LER 80-034/03L-0 ‎ (← links)
  • 05000366/LER-1980-033, Forwards LER 80-033/03L-0 ‎ (← links)
  • 05000366/LER-1980-021-03, /03L-0:on 800303,while in Shutdown,Surveillance Tests Found HPCI Turbine Exhaust Valve,Feedwater Check Valve & Equipment Drain Sump Isolation Valve W/Unacceptable Leakage.Causes Under Investigation ‎ (← links)
  • 05000366/LER-1980-021, Forwards LER 80-021/03L-0 ‎ (← links)
  • 05000321/LER-1980-028-03, /03L-0:on 800313 & 17,during Full Power Operation, Secondary Containment Integrity Momentarily Violated at 164 Ft Elevation Reactor Bldg Airlock.Caused by Design Deficiency.Design Change Request Has Been Written ‎ (← links)
  • 05000321/LER-1980-028, Forwards LER 80-028/03L-0 ‎ (← links)
  • 05000366/LER-1980-024-03, /03L-0:on 800308,w/reactor in Cold Shutdown,While Performing ASME Operability Test on RHR Water Pumps,Pump 2E11-C001D Dropped from 4,000 Gpm to 3,600 Gpm.Caused by Debris Being Drawn Into Suction of Pump ‎ (← links)
  • 05000321/LER-1980-027-03, /03L-0:on 800310,during Review of Surveillance Schedule,Discovered Rod Block Monitor Functional Test & Calibr Not Performed within Required Interval.Caused by Personnel Oversight.Surveillance Acceptably Performed ‎ (← links)
  • 05000321/LER-1980-027, Forwards LER 80-027/03L-0 ‎ (← links)
  • 05000366/LER-1980-025-03, /03L-0:on 800308,during Shutdown,While Performing Rhr(Lpci) Pump Start Timers Calibr,Relay 2E11-K75A Setpoint Exceeded Tech Specs.Caused by Setpoint Drift.Relay Recalibr ‎ (← links)
  • 05000366/LER-1980-025, Forwards LER 80-025/03L-0 ‎ (← links)
  • 05000321/LER-1980-025, Forwards LER 80-025/03L-0 ‎ (← links)
  • 05000366/LER-1980-032-01, /01T-0:on 800327,during Maint Outage & Surveillance Test,Noted That 2D Psw Pump Sequenced to Bus in 2 to 5-s.Cause Unknown ‎ (← links)
  • 05000366/LER-1980-032, Forwards LER 80-032/01T-0 ‎ (← links)
  • 05000366/LER-1980-031-01, /01T-0:on 800327,during Performance of 18-month Tests on Station Battery Chargers 2A,2B & 2C,chargers Were Unable to Maintain Load Limits.Caused by Imbalanced Silicon Control Rectifiers & Maladjusted Current Limit Module ‎ (← links)
  • 05000366/LER-1980-029, Forwards LER 80-029/01T-0 ‎ (← links)
  • 05000366/LER-1980-026, Forwards LER 80-026/03L-0 ‎ (← links)
  • 05000366/LER-1980-008-03, While Increasing Reactor Power by Rod Withdrawal,Operator Noticed Rod Select Matrix Backlighted & Rod Sequence Control Sys Not Initiating Rod Blocks Properly.Caused by Design Change ‎ (← links)
  • 05000366/LER-1980-008, Forwards LER 80-008/03L-1 ‎ (← links)
  • 05000321/LER-1980-018-03, /03L-0:on 800207,during Normal,Full Power Operation,Hydraulic Control Unit Accumulator 42-23 Received Low Pressure Alarm.Caused by Failure of Nitrogen Cartridge Valve from Wear Due to Constant Use ‎ (← links)
  • 05000321/LER-1980-018, Forwards LER 80-018/03L-0 ‎ (← links)
  • 05000366/LER-1980-012-03, /03L-0:on 800214,while at Full Power,Rhr & Plant Svc Water Min Flow Line Found to Be Inadequately Supported. Caused by Design Deficiency.Design Change Request & Maint Request Implemented to Add Supports ‎ (← links)
  • 05000321/LER-1980-015, Forwards LER 80-015/03L-0 ‎ (← links)
  • 05000366/LER-1980-012, Forwards LER 80-012/03L-0 ‎ (← links)
  • 05000366/LER-1980-014-03, /03L-0:on 800204,while Performing HNP-2-3054, Average Power Range Monitor C Failed.Caused by Instrument Drift.Instrument Adjusted Per Procedure & Returned to Svc ‎ (← links)
  • 05000366/LER-1980-014, Forwards LER 80-014/03L-0 ‎ (← links)
  • 05000321/LER-1980-014-03, /03L-0:on 800130,during Steady State power,hi-low Flow Reactor Bldg Vent Stack Radiation Monitor Annunciator Alarm Occurred Because Gas Sample Flow Had Stopped.Caused by Solenoid Valve Stuck in Closed Position ‎ (← links)
  • 05000321/LER-1980-014, Forwards LER 80-014/03L-0 ‎ (← links)
  • 05000366/LER-1980-013-03, /03L-0:on 800203,while Maint Was Performed on 2082-K002 Static Inverter,Emergency Control Transfer Switch Was Placed in Emergency Position.Reactor Core Isolation Cooling Was Rendered Inoperable.Caused by Personnel Error ‎ (← links)
  • 05000366/LER-1980-013, Forwards LER 80-013/03L-0 ‎ (← links)
  • 05000321/LER-1980-017-03, /03L-0:on 800201,while Performing MSIV Closure Instrumentation Ft&C,Scram Relays IC71-K3G & H Found de-energized W/Associated MSIVs Fully Open.Caused by Loose Limit Switch on Actuating Arm.Arm Reset & Tightened ‎ (← links)
  • 05000321/LER-1980-017, Forwards LER 80-017/03L-0 ‎ (← links)
  • 05000321/LER-1980-011-03, /03L-0:on 800120,while at Steady State Power, torus-to-drywell Differential Pressure recorder,LT48-R631B Had Low Reading.Cause Not Stated ‎ (← links)
  • 05000321/LER-1980-011, Forwards LER 80-011/03L-0 ‎ (← links)
  • 05000366/LER-1980-015-03, /03L-0:on 800131,review of Surveillance Requirements Revealed 12 & 18-month Surveillances for Tech Spec Sections 4.7.6.1e & 4.7.6.1.f.3 Not Performed.Caused by Misinterpretation of Tech Specs ‎ (← links)
  • 05000366/LER-1980-015, Forwards LER 80-015/03L-0 ‎ (← links)
  • 05000366/LER-1980-004-03, /03L-0:on 800118,during Steady State Power Operation Hydrogen Recombiner Inlet Valve 2T49-F003A Did Not Open.Caused by a Failed Torque Switch.Sys Returned to Operation After Switch Was Replaced ‎ (← links)
  • 05000366/LER-1980-004, Forwards LER 80-004/03L-0 ‎ (← links)
  • 05000321/LER-1980-012-03, /03L-0:on 800122,while Reactor Core Isolation Cooling Sys Was Tagged Out for Maint,Hpci Was Found Inoperable,Requiring Orderly Shutdown.Caused by Leak in Line to HPCI Booster Pump Discharged Pressure Gauge ‎ (← links)
  • 05000321/LER-1980-012, Forwards LER 80-012/03L-0 ‎ (← links)
  • 05000321/LER-1980-007-03, /03L-0:on 800114,while Testing Standby Svc Water Pump,Pump Would Not Meet Criteria.Caused by Disengagement of Pump First Stage Impeller Lock Collet.Lock Collet Replaced & Pump Reinstalled ‎ (← links)
  • 05000366/LER-1980-007, Forwards LER 80-007/01T-0 ‎ (← links)
  • 05000321/LER-1980-013-03, /03L-0:on 800127,during Steady State Power Operation,A Reactor Recirculation Pump 1B31-COO1A Tripped. Caused by Ground in Pump Control Circuit That Interlocks Pump to Suction Valve Position ‎ (← links)
  • 05000366/LER-1980-016-03, /03L-0:on 800130,w/reactor in Run Mode,Auxiliary Oil Pump Feeder Breaker Tripped While HPCI Auxiliary Oil Pump Was Running to Obtain Oil Sample.Caused by Failure of Coil of Time Delay Relay.Coil Was Replaced ‎ (← links)
  • 05000321/LER-1980-013, Forwards LER 80-013/03L-0 ‎ (← links)
  • 05000366/LER-1980-016, Forwards LER 80-016/03L-0 ‎ (← links)
  • 05000321/LER-1980-016-03, /03L-0:on 800129,investigation of IE Bulletin 79-27 Revealed That Supply Breakers Control Power to Meter Control Ctr & Mode of Operation Were in Error.Caused by Design Error.Breaker Control Switches Placed in Manual ‎ (← links)
  • 05000321/LER-1980-016, Forwards LER 80-016/03L-0 ‎ (← links)
  • 05000366/LER-1980-010-03, /03L-0:on 800131,during Reactor Startup,At 58% Power,Max Total Peaking Factor Was Calculated at 3.0 Compared to Design Value of 2.38.Caused by Lower than Normal Xenon Distribution During Startup ‎ (← links)
  • 05000366/LER-1980-010, Forwards LER 80-010/03L-0 ‎ (← links)
  • 05000366/LER-1980-009-03, /03L-0:on 800130,while Performing Procedure HNP-2-33-3,HPCI Min Flow Valve 2E41-F012 Failed to Close. Caused by Sticking Switch Contacts on Flow Switch 2E41-N006. Switch Contacts Cleaned & Procedure HNP-2-3303 Performed ‎ (← links)
  • 05000366/LER-1980-009, Forwards LER 80-009/03L-0 ‎ (← links)
  • 05000366/LER-1980-002-01, /01T-0:on 800128,during Cold Shutdown,Ae Notified Util That Single Mode Failure Existed for Torus Gravity Fill Isolation Valve 2G51-F013.Caused by Design Deficiency. Standing Order Issued ‎ (← links)
  • 05000366/LER-1980-104-03, /03L-0:on 800711,while in Normal Shutdown mode,4 Kv Emergency Switchgear 2F Normal Supply Breaker Tripped & Swapped to Alternate Supply Breaker Which Also Tripped. Caused by Missing Jumper Resulting from Const Fault ‎ (← links)
  • 05000366/LER-1980-104, Forwards LER 80-104/03L-0 ‎ (← links)
  • 05000366/LER-1980-102-03, /03L-0:on 800711,surveillance Procedure HNP-2- 3456,reactor Protection Sys Motor Generator Set Overvoltage Undervoltage & Underfrequency Relays Ft&C,Not Completed by midnight,800710.Caused by Limited Time Allowed for Process ‎ (← links)
  • 05000366/LER-1980-102, Forwards LER 80-102/03L-0 ‎ (← links)
  • 05000366/LER-1980-005-03, /03L-0:on 800119,during Power Operation,Tech Specs 4.8.1.1.1.a & 4.8.1.1.2a4 for Electrical Power Sources Were Not Performed within 1-h.Caused by Personnel Misinterpretation of Tech Spec Requirements ‎ (← links)
  • 05000366/LER-1980-005, Forwards LER 80-005/03L-0 ‎ (← links)
  • 05000321/LER-1980-002, Forwards LER 80-002/03L-0 ‎ (← links)
  • 05000366/LER-1980-003-03, /03L-0:on 800117,while Applying Equalizing Charge to 125/250-volt Dc Station Svc Batteries,Hpci Automatic Flow Control Power Inverter Tripped.Caused by Instrument Drift. Instrument Recalibr Satisfactorily ‎ (← links)
  • 05000366/LER-1980-003, Forwards LER 80-003/03L-0 ‎ (← links)
  • 05000321/LER-1980-008-03, /03L-0:on 800115,during Steady State Power Operation,Secondary Containment Integrity Violated When Personnel Opened 164-ft Elevation Reactor Bldg & Turbine Bldg Airlock Doors Simultaneously.Procedure Revised ‎ (← links)
  • 05000321/LER-1980-008, Forwards LER 80-008/03L-0 ‎ (← links)
• 05000321/LER-1980-006, Forwards LER 80-006/03L-0 ‎ (← links)
• 05000321/LER-1980-004, Forwards LER 80-004/03L-0 ‎ (← links)
• 05000321/LER-1980-006-03, /03L-0:on 800113,one Standby Gas Treatment Sys Rendered Inoperable W/Both Units in Power Operation.Unit Not Proven Operable within Required 4-h.Caused by Inability to Prove Filter Train Operable within 4-h ‎ (← links)
• 05000321/LER-1980-003-03, /03L-0:on 800105,w/reactor in Shutdown Mode, Outboard Shutdown Cooling Isolation Valve 1E11-F008,opened in 25.8-s & Closed in 25.2-s.Tech Spec Limit Is No Greater than 24-s.Cause Not Established.Valve Adjusted ‎ (← links)
• 05000321/LER-1980-005-03, /03L-0:on 800109,w/reactor Mode Switch in Run Mode,Discovered That Surveillance Procedure HNP-1-3007, Turbine Control Valve Fast Closure,Was Not Performed in Grace Period.Caused by Personnel Error ‎ (← links)
• 05000321/LER-1980-005, Forwards LER 80-005/03L-0 ‎ (← links)
• 05000366/LER-1980-001-03, /03L-0:on 800102,while Performing Narrow Range Torus Water Level Functional Test & Calibr,Level Transmitter 2T48-N021B Found Out of Tolerance.Caused by Range Drift. Transmitter Recalibr & Returned to Svc ‎ (← links)
• 05000366/LER-1980-001, Forwards LER 80-001/03L-0 ‎ (← links)
• 05000321/LER-1980-001-01, /01T-0:on 800103,while Performing Maint on RHR LPCI Injection Valve,Clevis Pin Found Missing from Strut on Drywell Penetration Restraint.Caused by Improper Installation.New Clevis Pin Installed ‎ (← links)