Pages that link to "05000251/LER-1981-002, Forwards LER 81-002/03L-0"
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The following pages link to 05000251/LER-1981-002, Forwards LER 81-002/03L-0:
Displayed 50 items.
- ML17340A964 (redirect page) (← links)
- ML17340A965 (← links)
- 05000251/LER-1981-014, Forwards LER 81-014/02T-0 (← links)
- 05000250/LER-1981-013, Forwards Updated LER 81-013/02X-2 (← links)
- 05000250/LER-1981-016-03, 125-volt Dc Battery 3A Failed to Hold Charge.Root Cause Not Identified.Battery Replaced,Tested & Returned to Svc.Recommendations Received from Manufacturer (← links)
- 05000250/LER-1981-013-02, Small Void in Concrete Found Immediately Below Equipment Hatch Barrel.Cause Not Stated.Similar Void Confirmed on Unit 4.Voids Repaired (← links)
- 05000251/LER-1981-014-02, /02T-0:on 811123,defective Area of Large Aggregate W/Inadequate Fines Found in Containment Liner Plate Concrete Cover.Caused by Inadequate Cementation of Original Pour as Result of Defective Concrete Batch (← links)
- 05000250/LER-1981-013-03, While Making Alterations to Equipment Hatch Ramp,Small Void in Concrete Immediately Below Equipment Hatch Barrel Discovered.Probably Caused by Design Problem.Concrete Void Repaired (← links)
- 05000251/LER-1981-017-03, /03L-0:on 811222,boron Injection Tank Circuits Found Out of Calibr.Cause Unknown.Open Circuit Repaired, Tested & Returned to Svc (← links)
- 05000251/LER-1981-017, Forwards LER 81-017/03L-0 (← links)
- 05000251/LER-1981-016-03, /03L-0:on 811204,for Approx 4-h,condensate Storage Tank Vol Was Lower than Tech Spec.Caused by Disassembling & Closing Control Valve Associated W/Makeup Flow to Hotwell During Maint.Mods Scheduled (← links)
- 05000251/LER-1981-016, Forwards LER 81-016/03L-0 (← links)
- 05000251/LER-1981-015-03, /03L-0:on 811128,two Overpressure Conditions Developed for Which Overpressure Mitigating Sys Failed to Operate.Caused by Failed Summator on Sys Circuitry Coupled W/Inadvertently Isolated Pressure Transmitter (← links)
- 05000251/LER-1981-012-03, /03L-0:on 811124,during Safeguard Sys Testing,Bus Clearing Relays Did Not Pick Up 4A Bus.Emergency Diesel Generator Did Not Close in on 4A Bus.Caused by Malfunction of 4kv Breaker Auxiliary Switches Associated W/Bus Logic (← links)
- 05000251/LER-1981-012, Forwards LER 81-012/03L-0 (← links)
- 05000250/LER-1981-017-03, /03L-0:on 811122,periodic Test of 3A & 4B High Head Safety Injection Pumps Was Not Completed within Required Time Interval.Surveillance Completed on 811129 & 1206 for 3A & 4B Pumps,Respectively (← links)
- 05000250/LER-1981-017, Forwards LER 81-017/03L-0 (← links)
- 05000251/LER-1981-013-01, /01T-0:on 811116,during Refueling Operations, Containment Momentarily Breached by Having Both Inside & Outside Doors of Personnel Hatch Open.Caused by Disabled Dog Ear Positioner in Air Lock Side.Dog Ear Repositioned (← links)
- 05000251/LER-1981-013, Forwards LER 81-013/01T-0.Detailed Event Analysis Encl (← links)
- 05000250/LER-1981-015-03, /03L-0:on 811112,during Maint on B Emergency Diesel Generator,Both a & B Emergency Diesel Generators Were Inoperable.Caused by Broken Diaphragm in Starting Air Solenoid.Solenoid Replaced & Generator Returned to Svc (← links)
- 05000250/LER-1981-015, Forwards LER 81-015/03L-0 (← links)
- 05000250/LER-1981-016, Forwards LER 81-016/03L-0 (← links)
- 05000250/LER-1981-014-03, /03L-0:on 811016,electrical Penetration Fire Barrier on Switchgear Room Wall Found to Be Nonfunctional. Caused by Incomplete Installation Work.Fire Watch Patrol Established & Personnel Reinstructed Re Maint Procedure (← links)
- 05000250/LER-1981-014, Forwards LER 81-014/03L-0 (← links)
- 05000251/LER-1981-011-01, /01T-0:on 811021,high Head Safety Injection Line to Cold Legs Found to Be Obstructed During Full Flow Test on Discharge Check Valve of Pumps.Caused by Reduced Temp Due to Missing Insulation Near 4-inch Tee at Bit Inlet (← links)
- 05000251/LER-1981-011, Forwards LER 81-011/01T-0 (← links)
- 05000250/LER-1981-012-09, /09T-0:on 811020,voltage Spike Discovered to Have Potential to Cause arc-over & Subsequent Open Circuit at Junction Between Coil Winding & Lead Wire.Caused by Design Deficiency.Affected Coils Replaced During Current Outage (← links)
- 05000250/LER-1981-012, Forwards LER 81-012/09T-0 (← links)
- 05000251/LER-1981-010-03, /03L-0:on 810903,while Surveillance Testing, Auxiliary Feedwater Pump a Could Not Be Properly Tripped & Was Removed for Repair.Caused by Loose Set Screw & Misaligned Yoke.Yoke & Set Screw Repaired (← links)
- 05000251/LER-1981-010, Forwards LER 81-010/03L-0 (← links)
- 05000251/LER-1981-009-03, /03L-0:on 810728,bus 4A Failed to Transfer Properly (Startup Acb 4AA05 Did Not Close After Auxiliary Acb 4AA02 Tripped).Probably Caused by Transfer Inhibit Relay 162/4A2 W/Loose Crimp on Coil Wire.Relay Replaced (← links)
- 05000251/LER-1981-009, Forwards LER 81-009/03L-0 (← links)
- 05000251/LER-1981-008-03, /03L-0:on 810717,while Performing Instrumentation Repairs on Pressurizer Spray Valve PCV-4-455B,RCS Leakage Discovered in Unused & Capped Packing Leakoff Line.Caused by Failure of Stem Seal Bellows & Crack in Nipple (← links)
- 05000251/LER-1981-008, Forwards LER 81-008/03L-0 (← links)
- 05000250/LER-1981-013-01, /01T-0:on 810710,void Discovered in Concrete Immediately Below Equipment Hatch Barrel.Caused by Concrete Pour.Engineering Review Underway to Determine Method of Repair (← links)
- 05000251/LER-1981-001-03, /03L-0:on 810112,during Startup,For 4-h,condensate Storage Tank Contained Less than 185,000 Gallons Required by Tech Spec 3.8.1.C.Caused by Increased Water Demand During Low Power Physics Testing Exceeding Treatment Plant Ou (← links)
- 05000251/LER-1981-001, Forwards LER 81-001/03L-0 (← links)
- 05000250/LER-1981-009-03, /03L-0:on 810420,while Performing Low Power Physics Testing,Reactor Protection Bistables Associated W/ N-43 Found Not in Trip Mode While Instrument Used as Input. Caused by Procedural Inadequacy (← links)
- 05000250/LER-1981-009, Forwards LER 81-009/03L-0 (← links)
- 05000250/LER-1981-011-03, /03L-0:on 810506,two Electrical Penetration Fire Barriers Found Nonfunctional During Implementation of Surveillance Per Tech Specs.Caused by Incomplete Installation.Personnel Readvised of Fireproofing Procedure (← links)
- 05000250/LER-1981-011, Forwards LER 81-011/03L-0 (← links)
- 05000251/LER-1981-015, Forwards LER 81-015/03L-0.Detailed Event Analysis Encl (← links)
- 05000250/LER-1981-010-03, /03L-0:on 810501,component Cooling Water Pump 3A Did Not Start During Routine Equipment Rotation.Caused by Closing Latch Spring in Pump Circuit Breaker Detaching, Preventing Charging of Closing Springs.Breaker Repaired (← links)
- 05000250/LER-1981-010, Forwards LER 81-010/03L-0 (← links)
- 05000251/LER-1981-006-03, /03L-0:on 810423,snubber on Supply Steam Line to Auxiliary Feedwater Sys Observed to Have Broken Loose. Caused by Failure of Threaded Joint for Connection of Snubber Rod from Turnbuckle to Adaptor Plate.Joint Welded (← links)
- 05000251/LER-1981-006, Forwards LER 81-006/03L-0 (← links)
- 05000251/LER-1981-007-03, /03L-0:on 810426,component Cooling Water Surge Tank Low Level Alarm Sounded & Containment Sump Level Found Increasing.Caused by Failed Flexitallic Gasket on Inlet Flange of Excess Letdown Heat Exchanger (← links)
- 05000251/LER-1981-007, Forwards LER 81-007/03L-0 (← links)
- 05000250/LER-1981-004-03, During Power Operation Auxiliary Feedwater Pump a Failed to Meet Acceptance Criteria Per Tech Spec 4.10.1.Caused by Damaged Valve Plug. Cause of Damage Not Determined.Stem & Plug Replaced (← links)
- 05000250/LER-1981-004, Forwards Updated LER 81-004/03X-1 (← links)
- 05000250/LER-1981-008-03, /03L-0:on 810416,crack Found in Weld on Drain Line from Charging Sys Downstream of Regenerative Heat Exchanger. Probably Caused by Stress Due to Line Vibration.Defective Area Cut Out,Nipple Shortened & Weld Replaced (← links)