Pages that link to "05000311/LER-1982-077, Forwards LER 82-077/01T-0.Detailed Event Analysis Encl"
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The following pages link to 05000311/LER-1982-077, Forwards LER 82-077/01T-0.Detailed Event Analysis Encl:
Displayed 3 items.
- 05000311/LER-1982-077 (redirect page) (← links)
- ML20064N333 (← links)
- 05000311/LER-1982-077, Supplemental LER 82-077/01X-1:on 820818,leakage Discovered from Containment Fan Coil 21.Caused by Erosion of Copper Nickel Piping.Cooling Coils Replaced w/erosion-resistant Matl (redirect page) (← links)
- 05000311/LER-1982-120, Forwards LER 82-120/01T-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-119, Forwards LER 82-119/01T-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-110, Forwards LER 82-110/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-116, Forwards LER 82-116/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-008, Supplemental LER 82-008/03X-1:on 820126,boric Acid Concentrations in Boric Acid Storage Tanks 11 & 12 Found Below Tech Spec Limit.Caused by Dilution of Concentration by Flushing Water in Tank Following Maint.Boric Acid Added (← links)
- 05000272/LER-1982-002, Supplemental LER 82-002/01X-2:on 820119,during Surveillance, Indications of Tube Thinning Detected by Eddy Current Exam. Tubes Above 30% Degradation Plugged.Tube R44C62 Sent to Westinghouse for Chemical & Metallurgical Testing (← links)
- 05000311/LER-1982-141, Forwards LER 82-141/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-143, Forwards LER 82-143/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-139, Forwards LER 82-139/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-138, Forwards LER 82-138/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-142, Forwards LER 82-142/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-136, Forwards LER 82-136/01T-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-134, Forwards LER 82-134/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-132, Forwards LER 82-132/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-087, Forwards LER 82-087/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-088, Forwards LER 82-088/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-135, Forwards LER 82-135/01T-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-090, Forwards LER 82-090/01T-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-106, Forwards LER 82-106/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-064, Forwards LER 82-064/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-086, Forwards LER 82-086/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-131, Forwards LER 82-131/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-082, Forwards LER 82-082/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-128, Forwards LER 82-128/01T-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-079, Forwards LER 82-079/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-123, Forwards LER 82-123/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-072, Supplemental LER 82-072/03X-1:on 820820,during Surveillance Testing,Discovered That Reactor Trip Breaker B Would Not Trip.Caused by Binding of Undervoltage Coil Solenoid.Coil Replaced & Breaker Reinstalled (← links)
- 05000311/LER-1982-114, Forwards LER 82-114/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-009, Supplemental LER 82-009/03X-1:on 820118 & 25,Cardox Fire Suppression Sys for 1A,1B & 1C Diesel Generator Areas & Fuel Oil Storage Area 12 Inoperable for More than 14 Days.Caused by Sys in Manual Mode Due to Maint Outage (← links)
- 05000311/LER-1982-118, Forwards LER 82-118/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-077, Forwards LER 82-077/03L-0.Detailed Event Analysis Encl (← links)
- 05000311/LER-1982-117, Forwards LER 82-117/03L-0.Detailed Event Analysis Encl (← links)
- ML20076M586 (redirect page) (← links)
- 05000311/LER-1982-058, Forwards LER 82-058/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-015, Forwards LER 82-015/03L-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-018, Forwards LER 82-018/01T-0.Detailed Event Analysis Encl (← links)
- 05000272/LER-1982-081, Supplemental LER 82-081/01X-1:on 821104,16 1,000-kip Steam Generator Snubbers Found Out of Spec on Bleed Test & Six Snubbers Failed Acceleration Test.Caused by Flattened Piston Seal Rubber Matl Due to Aging.Seals Rebuilt (← links)
- 05000311/LER-1982-145, Forwards Corrected LER 82-145/03X-1.Detailed Event Analysis Encl (← links)
- 05000311/LER-1989-011, :on 890522,determined That Tech Spec 4.3.2.1.1 Had Not Been Fully Complied With.Caused by Inadequate Design Review.Design Change Modifying Circuitry to Allow Continuity Testing Will Be Completed Next Outage (← links)
- 05000311/LER-1989-014-02, :on 890810,RMS Containment Particulate Monitor 2R12B Channel Failed & on 890823,monitor 2R41A Channel Failed.Caused by Design/Equipment Problems.Field Monitors Replaced as Needed (← links)
- 05000311/LER-1989-013-01, :on 890610,control Room Alarm Annunciated Due to High Differential Pressure & Reactor Tripped Resulting in in Five of Six Circulating Pumps Becoming Inoperable.Caused by Inadequate Corrective Action (← links)
- 05000311/LER-1989-009-01, :on 890415,RMS Plant Vent Noble Gas Monitor channel,2R41C,indicated Communication Failure.Caused by Design/Equipment Problem.Back Plane Contacts on All Modules in Local & Remote Channel Monitor Cleaned (← links)
- 05000311/LER-1989-008-02, :on 890411,reactor Trip on Steam Generator 24 lo-lo Level Occurred After Main Steam Line Isolation Valve 24MS167 Closed.Caused by Latching Relay Failure During Surveillance.Relay Replaced & Circuit Tested (← links)
- 05000311/LER-1989-006-02, :on 890329,reactor Trip Signal on Steam Generator 21 Occurred After Shutdown for Compliance W/Tech Spec Action Statement 3.7.7.b.Caused by Equipment Problems. Channel I Transmitter Recalibr (← links)
- 05000311/LER-1989-012-01, :on 890527,procedure Which Tests Response Time for Closure of Feedwater Regulating Control Valves Found Inadequate.Caused by Inadequate Procedure.Surveillance Procedure Revised to Clarify Response Time (← links)
- 05000272/LER-1986-016, :on 860805,steam Generator Feed Pump Tripped on Overspeed Trip.Caused by Failed Diode.Diode Replaced.All Four Steam Generator Feed Pump Electrical Control Panels Completely Refurbished (← links)
- 05000272/LER-1986-017, :on 860729,Fire Door C-8-1 Blocked Open for Maint of Component Cooling HX 11.Action Statement Not Issued.Caused by Error in Judgement Re Proper Classification of Fire Doors.Doors Will Be Clearly Marked (← links)
- 05000311/LER-1986-009-02, :on 860911,during Routine Power Operation, Reactor Trip Occurred.Caused by Electrical Fault in 4,160/ 230-volt Transformer 2F.Transformer Replaced.Investigation Continuing (← links)
- 05000311/LER-1986-011-02, :on 861117,Tech Spec 4.9.7 Re Fuel Handling Crane Overload Cutoff Not Performed within Required Time Period.Caused by Personnel error.Seven-day Insp Order Will Be Initiated When Crane in Use (← links)
- 05000272/LER-1986-020-01, :on 861108,Tech Spec Surveillance 4.7.7.1.A Not Completed within Required Time.Caused by Personnel Error. Shift Supervisors Counseled Re Failure to Take Necessary Steps to Allow Performance of Surveillance (← links)
- 05000272/LER-1985-007, :on 850708,waste Gas Decay Tank 14 Depressurized Through Plant Vent.Caused by Seat Leakage Through Valve 1WG41 & Improper Testing of Solenoid Valves. Leak Test Procedure Revised (← links)
- 05000272/LER-1986-016-01, :on 860805 & 06,steam Generator Feed Pump 11 Tripped & Feed Flow/Steam Flow Mismatch Alarm Occurred, Respectively.Caused by Diode Failure & Accidental Grounding of Circuit.Diode Replaced.Wiring Relocated (← links)
- 05000272/LER-1986-018-01, :on 860806,Limitorque Motor Valve Operators W/O Environ Qualified Wires Discovered.Caused by Insufficient Control of Wiring During Operator Assembly. Wiring Replaced.Stored Wires Will Be Inspected (← links)
- 05000311/LER-1986-010-02, :on 861016,cable Tray Penetration Located in Wall Between Auxiliary Bldg Elevation & Switchgear Room Discovered Impaired.Cause Under Investigation.Roving Fire Watch Established & Personnel Counseled (← links)
- 05000311/LER-1986-014-02, :on 861228,control Room Console Alarm Received Due to Closure of Feed Regulating Valve for Steam Generator 23.Caused by Failure of Steam/Feed Mismatch Signal Summator. Signal Summator Replaced (← links)
- 05000272/LER-1986-017-01, :on 860729,Fire Door C-8-1 Blocked Open to Allow Maint on Component Cooling HX 11.Caused by Error in Judgement Re Proper Classification of Fire Door.Fire Doors Will Be Clearly Marked (← links)
- 05000311/LER-1986-013-02, :on 861223,turbine Reactor Trip Occurred When Steam Reset Interlock P-7 Causing Turbine Overspeed.Caused by Failure of electro-hydraulic Control Sys Circuit Cards. Cards Replaced & Sys Tested Satisfactorily (← links)
- 05000272/LER-1986-021-01, :on 861112,discovered That Tech Spec Surveillance 4.3.3.9 for Quarterly Functional Test of Noble Gas Activity Monitor Not Performed within Required Time Frame.Caused by Personnel Error (← links)
- 05000311/LER-1987-001-01, :on 870113,RHR Injection Capability to Two Cold Legs Lost.Caused by Inadequate Tech Specs.Surveillance Procedure Will Be Revised to Reflect Injection Requirements (← links)
- 05000311/LER-1986-007-02, :on 860826,reactor Trip & Safety Injection Initiated by Spurious Actuation of Bistables & Contacts, Resulting from Voltage Spike on Vital Instrument Bus 2C, Resulting in Loss of Offsite Power (← links)
- 05000272/LER-1986-005, :on 860218,Tech Spec 3.8.1.1.a Requiring Surveillance of Diesel Generators 13 & 1C While 1A Tagged for Maint,Violated.Caused by Personnel Error.Operability of Generators Verified.Personnel Counseled (← links)
- 05000311/LER-1985-022, :on 851007,reactor Trip & Safety Injection Initiated by Spurious Actuation of Bistables & Contacts Resulting from Voltage Spike on Vital Instrument Bus 2C. Caused by Technical Miswiring Receptacle (← links)
- 05000311/LER-1986-012-02, :on 861121,valve 2PR25 in as Found Condition Exhibited Leak Rate Greater than Acceptable.Caused by Buildup of Small Amount of Boron Crystals on Valve Seat. Valve Cleaned & Retested Satisfactorily (← links)
- 05000311/LER-1982-058-03, /03L-0:on 820702,svc Water Flow to Containment Fan Coil Unit 23 Less than Amount Required for Low Speed Operation.Caused by Oysters Plugging Valve.Oysters Removed. Development of Chlorination Program in Progress (← links)
- 05000272/LER-1982-018-01, /01T-0:on 820403,during Visual Insp of Containment Bldg,Svc Water Leak Discovered on Flange of Valve 14SW65. Caused by Loose Studs on Valve Flange.Studs Torqued & Leakage Stopped (← links)
- 05000272/LER-1982-016-03, /03L-0:on 820326,gaseous Release Initiated from Waste Gas Sys.Caused by Failure of Control Room Operator to Properly Perform Operating Instruction Resulting in Incorrect Vent Monitor Alignment.Ets Limits Not Exceeded (← links)
- 05000311/LER-1982-145-03, Following Shift of Vital Bus 2B Power Source,Computer P-250 Found Down.Caused by Failure of Inverter Power Supply Due to Failed Oscillator Circuit Board (← links)
- 05000311/LER-1982-141-03, /03L-0:on 821121 & 1204,RCS Subcooling Monitor Declared Inoperable.Caused by Parity Error in R-250 Computer Due to Insufficient Ventilation.Computer Reprogrammed & Temporary Fan Installed (← links)
- 05000311/LER-1982-143-03, /03L-0:on 821124,during Surveillance Review, Discovered Reactor Trip Breaker Manual Trip Feature Not Tested Before 821119 Startup.Caused by Confusion Involving Recent Changes in Procedures Re Testing of Trip Breaker (← links)
- 05000311/LER-1982-139-03, /03L-0:on 821119,auxiliary Feedwater Storage Tank Dropped Below Tech Spec Min Vol of 200,000 Gallons.Caused by Personnel Error.Tank Level Restored & Operator Counseled (← links)
- 05000311/LER-1982-138-03, /03L-0:on 821119,shift Supervisor Realized That Surveillance Requirement to Check Local Sightglass Levels of Accumulators 23 & 24 Was Overdue.Caused by Personnel Oversight.Personnel Counseled (← links)
- 05000311/LER-1982-142-03, /03L-0:on 821123,steam Generator 21 Level Channel IV Indication Read 4% Higher than Other Channels & Declared Inoperable.Caused by Failure of Channel Level Transmitter. Transmitter Replaced (← links)
- 05000272/LER-1982-091-01, /01T-0:on 821130,leakage Discovered from Weld on Svc Water Piping to Component Cooling HX 12.Caused by Degradation of Weld & Similar Joints Due to Type of Filler Metal Used & Corrosive Environ of Svc Water Sys (← links)
- 05000311/LER-1982-136-01, /01T-0:on 821124,small Svc Water Leak of 0.5 Gpm Discovered on Cooling Coil of Containment Fan Coil Unit 23. Caused by Erosion of Cooling Coil by Silt in Svc Water. Coil Blanked Off to Seal Leak (← links)
- 05000311/LER-1982-132-03, /03L-0:on 821106 & 15,spurious Actuation of Safeguards Equipment Control Cabinet 2A Resulted in de-energization of Vital Bus 2A.Caused by Noise in Sys Control Circuitry.Noise Suppression Devices Will Be Added (← links)
- 05000272/LER-1982-088-03, /03L-0:on 821109,fire Observed in Fire Detection Instrumentation Panel 1FP3.Panel de-energized & Several Fire Detectors Rendered Inoperable.Caused by Failure of Panel Alarm Buzzer Relay.Relay Replaced (← links)
- 05000311/LER-1982-135-01, /01T-0:on 821121,during Routine Surveillance,Small Svc Water Leak Discovered on Cooling Coil of Containment Fan Coil Unit 25.Caused by Silt in Svc Water.Coil Repaired.New Design Coils Will Be Installed During Next Refueling (← links)
- 05000311/LER-1982-108-03, /03L-0:on 820915 & 17,RPI 1C4 Discovered Reading Greater than 12 Steps Lower than Bank Demand Indication.Caused by Combination of RPI Module Calibr Drift & Change in Actual Rod Position Signal Output (← links)
- 05000311/LER-1982-106-03, /03L-0:on 820913,six Broken Links Discovered on Circulator Travelling Screen 21A.Possibly Caused by stress-induced Cracking.Links Replaced.Design Change Request Issued to Consider Stainless Steel Links (← links)
- 05000272/LER-1982-064-03, /03L-0:on 820816,Westinghouse Reported Potential Problem Re Solid State Protection Sys.Evaluation of Rept for Applicability to Facility Underway.Supplemental Rept Will Be Submitted (← links)
- 05000311/LER-1982-085-03, /03L-0:on 820816,two Malfunctions of Reactor Coolant Channel Flow Indication 24 Experienced Due to Failure of Signal Isolation Amplifiers.No Common Cause for Isolation Amplifier Failure Determined.Amplifiers Replaced (← links)
- 05000272/LER-1982-086-03, /03L-0:on 821027,five Fire Barrier Penetrations Found non-functional During Routine Surveillance.Caused by Inadequate Sealing.Original Surveillance Procedure Failed to Specifically Identify Penetrations.Procedure Revised (← links)
- 05000272/LER-1982-085-01, /01T-0:on 821113,due to Resulting Loss of F & G Group Buses,Automatic Starting Feature of 1 & 2 Diesel Fire Pumps Disabled.Caused by Planned Maint on Station Power Transformer 12.Maint Completed & Power Restored (← links)
- 05000272/LER-1982-083-03, /03L-0:on 821102,during Routine Shutdown Operation,Temp Recorder for Air temp-delta T Channels Was Not Printing.Caused by Failure of Pinion Gear on Chart Drive Motor.Motor Replaced (← links)
- 05000311/LER-1982-127-03, /03L-0:on 821020,RCS Water Inventory Not Performed within Time Limits.Caused by Personnel Oversight & License Inadequacy.Surveillance Completed,Personnel Counseled & License Change Request Submitted (← links)
- 05000272/LER-1982-082-03, /03L-0:on 821025,thermal Detectors for Iodine Removal Sys & Pressure Relief Sys Discovered Missing from Fire Detection Instrumentation Surveillance Procedures. Caused by Oversight During Procedure Inception (← links)
- 05000272/LER-1982-080-03, /03L-0:on 821017 & 18,shutdown Margin Calculation Not Performed within Required Tech Spec Interval.Caused by Personnel Oversight.Personnel Counseled (← links)
- 05000311/LER-1982-124-03, /03L-0:on 821011,reactor Tripped Due to Underfrequency Signals on Group Buses 2F & 2H.Signals Caused by Ac Noise Generated by Failed Annunciator Power Supply for Diesel Generator 2A.Power Supply Replaced (← links)
- 05000272/LER-1982-079-03, /03L-0:on 821006,following Satisfactory Completion of Maint Procedure M3M,discovered That Procedure Not Performed During Preceding Wk.Caused by Oversight on Part of Electrical Supervisor.Order Written for Weekly Surveillance (← links)
- 05000311/LER-1982-121-03, /03L-0:on 821004,during Radiographic Surveillance of Check Valve 23MS46,discovered Valve Disk Separated from Hanger Arm.Caused by Improper Tagout Resulting in Improperly Positioned Valves.Valves Repositioned (← links)
- 05000272/LER-1982-076-03, /03L-0:on 820930,diesel Fire Pump 1 Would Not Start in Automatic Mode of Operation During Surveillance Testing.Caused by Stuck Fire Suppression Sys Header Low Pressure Switch.Switch Freed & Exercised (← links)
- 05000311/LER-1982-122-01, /01T-0:on 821018,small Svc Water Leak Found in Containment Fan Coil Unit 22.Caused by Accelerated Erosion Due to Silt in Svc Water.Leaking Coil Blanked Off.New Design Cooler Will Be Installed During Outage (← links)
- 05000311/LER-1982-118-03, /03L-0:on 820929,during Routine Surveillance, 2C Vital Bus Undervoltage Relay Failed to Drop Out on Decreasing Voltage.Caused by Out of Adjustment Relay Stop Lever.Lever Adjusted & Satisfactorily Tested (← links)
- 05000311/LER-1982-117-03, /03L-0:on 820929,svc Water Flow to Containment Fan Coil Unit 23 Found Below Tech Spec Requirements.Caused by American Oysters Plugging Valve 22SW57.Oysters Removed & Valve Reassembled.Improved Chlorination Being Developed (← links)
- 05000311/LER-1982-120-01, /01T-0:on 821011,discovered Small Svc Water Leak of Approx 1.0 Gpm on Containment Fan Coil Unit 21.Caused by Silt Erosion in Svc Water.Leak Repaired W/Belzona Metal Filter.New Design Coolers Will Be Installed (← links)
- 05000311/LER-1982-077-01, /01T-0:on 820818,containment Sump Pump Discovered Leaking & Containment Fan Coil Unit 21 Indicated Increased Humidity & Rising Drain Pot Level.Caused by Leaking Secondary Coil Due to Erosion of Piping (← links)