Pages that link to "05000278/LER-1979-011, Forwards LER 79-011/01T-0"
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The following pages link to 05000278/LER-1979-011, Forwards LER 79-011/01T-0:
Displayed 50 items.
- ML19263D727 (redirect page) (← links)
- ML19263D728 (← links)
- 05000278/LER-1979-011-01, /01T-0 on 790323:during Routine Insp of Drywell & Torus Ventilation Valves,Inflatable Disc Seals Were Found Depressurized.Caused by Procedural Deficiency Following Mod to Drywell & Torus Vent Valves.Procedures Revised (← links)
- 05000278/LER-1979-011, Forwards LER 79-011/01T-0 (← links)
- 05000277/LER-1979-028-03, /03L-0 on 790524:redundant Low Level HPCI Start Signal from LSL-2-3-72C Found Inoperable.Caused by Human Error.Field Wiring & Connection Drawing Were Corrected & Investigation of Event Is Being Performed by Engineering QA (← links)
- 05000278/LER-1979-011-01, /01T-0 on 790323:during Routine Insp of Drywell & Torus Ventilation Valves,Inflatable Disc Seals Were Found Depressurized.Caused by Procedural Deficiency Following Mod to Drywell & Torus Vent Valves.Procedures Revised (← links)
- 05000278/LER-1979-011 (redirect page) (← links)
- 05000277/LER-1979-005-03, /03L-0 on 790118:at Power,Routine Surveillance Test Revealed Setpoint of DPIS-2-14-43B Was Below Tech Spec Min.Caused by Instrument DPIS-2-14-43B Being Out of Calibr Due to Setpoint Drift (← links)
- 05000277/LER-1979-003-03, /03L-0 on 790109:2A Offgas Radiation Monitor Failed Downscale.Dirt on Contacts of Trip Test/Zero Calibr Switch Caused Input Key to Remain Deenergized Upon Release of Switch.Contacts Were Cleaned & Monitor Returned to Svc (← links)
- 05000277/LER-1979-004-03, /04L-0 on 790112:during Surveillance Test of Cable Spreading Room Smoke Detector,Annunciator Could Not Be Reset Because It Was Not Properly Reset Previously.Detector Lead Disconnected to Reset Annunciator (← links)
- 05000277/LER-1979-052-01, /01T-0:on 791127,analysis Per IE Info Notice 79-28 Revealed Four Concrete Expansion Bolts in Concrete Block Walls W/Safety Factors of Less than Four.Caused by Deficient Design.Corrective Actions to Be Completed by 800101 (← links)
- 05000277/LER-1979-052, Forwards LER 79-052/01T-0 (← links)
- 05000277/LER-1979-047-03, /03L-0:on 791029,valves SV2671A & SV2671B Failed to Close During Surveillance Testing of Dioxide Analyzer Primary Containment Valves.Caused by Piston Binding in Valve Body.Valve Internals Rebuilt (← links)
- 05000278/LER-1979-030-01, /01T-0:on 791002,rigid Hanger Failed Due to Contact Between Two of Four Bolts & Base Plate.Caused by Improper Installation.Two shell-type Bolts Were Replaced W/ wedge-type Bolts & Plate Washers Were Installed (← links)
- 05000278/LER-1979-030, Forwards LER 79-030/01T-0 (← links)
- 05000278/LER-1979-028-03, /03L-0:on 790910,main Steam Tunnel High Temp Switch TS 5932C Failed to Initiate Logic a Group I Isolation.Caused by Dirty Contacts on Temp Switch Circuit Board.Contacts Cleaned.Temp Switch Returned to Svc (← links)
- 05000277/LER-1979-030-03, /03L-0 on 790611:during Surveillance Testing of O2 Analyzer Primary Containment Isolation Valves,Valve SV2671B Failed to Close.Caused by Binding of Piston in Valve Body. Valve Internals Were Rebuilt & Test Successfully Perfo (← links)
- 05000277/LER-1979-020-03, /03L-0 on 790503:solution Temp in Standby Liquid Control Sys Found to Be 2 F Less than Tech Spec Requirement for Existing Boron Concentration.Caused by Incorrect Acceptable Temp Controller Setpoint Range (← links)
- 05000277/LER-1979-019-03, /03L-0 on 790501:during Surveillance Testing of Normally Open Primary Containment Isolation Valves,Four Oxygen Analyzer Sys Isolation Valves Failed to Close.Caused by Binding of Pistons in Valve Bodies.Valve Parts Rebuilt (← links)
- 05000278/LER-1979-039-01, /01T-0:on 791130,engineering Review Per IE Bulletin 79-02 Identified 16 Supports Associated w/1-inch Control Rod Driveline Insert & Withdrawal Piping as Not Being Seismically Qualified.Caused by Inadequate Design (← links)
- 05000278/LER-1979-039, Forwards LER 79-039/01T-0 (← links)
- 05000278/LER-1979-038, Forwards LER 79-038/01T-0 (← links)
- 05000278/LER-1979-035-03, /03L-0:on 791102,during Insp of Traveling in Core Probe Sys,Shear Valves in Guide Tube Assemblies Detected Installed Backwards.Caused by Facility Const Error.Five Shear Valves Removed & Properly Reinstalled (← links)
- 05000277/LER-1979-045-03, /03L-0:on 790924,E-2 Diesel Tripped,Causing Half Scram & Half Isolation.Caused by Erroneous Shutdown of Emergency Svc Water Sys & Subsequent Rise in Lube Oil Temp in Generator.Control Switch Tagged (← links)
- 05000277/LER-1979-045, Forwards LER 79-045/03L-0 (← links)
- 05000278/LER-1979-031-01, /01T-0:on 791003,rigid angle-iron Hanger Bolts Found Detached & Hanger Nonfunctional.Caused by Improper Installation.Two Anchor Bolts Were Replaced w/wedge-type Anchor Bolts (← links)
- 05000278/LER-1979-031, Forwards LER 79-031/01T-0 (← links)
- 05000278/LER-1979-032-01, /01T-0:on 791005,seismic Support Associated W/ Emergency Svc Water Return Line Failed.Two of Four Bolts on Support Plate Failed to Meet Torque Requirements.Caused by Improper installation.Shell-type Bolts Replaced (← links)
- 05000278/LER-1979-032, Forwards LER 79-032/01T-0 (← links)
- 05000277/LER-1979-050-01, /01T-0:on 791113,during Insp in Response to IE Bulletin 79-02,eight Hangers for Control Rod Drive Insert/Withdrawal Piping Found Not Qualified to Withstand Dbe.Caused by Seismic Support Design Deficiency (← links)
- 05000277/LER-1979-050, Forwards LER 79-050/01T-0 (← links)
- 05000277/LER-1979-048-03, /03L-0:on 791030,during Relamping of Main Off Gas Stack,Personnel Discovered Broken Isokinetic Sample Line. Caused by Crimp at U Clamp Support Bracket & Fatigue from Expansion,Contraction & Wind Loading (← links)
- 05000277/LER-1979-048, Forwards LER 79-048/03L-0 (← links)
- 05000278/LER-1979-027-03, /03L-0:on 790909,during Surveillance Test Performance,High Pressure Svc Water Pump 3D Tripped.Caused by Insecure Motor Leads of High Pressure Svc Water Pump Motor.Procedures Will Be Modified (← links)
- 05000277/LER-1979-042-01, /01T-0:on 790906,seismic & Redundancy Design Deficiencies Re Electrical Feeds Were Found on Containment Atmosphere Dilution Sys Valves & Instrumentation.Caused by Inadequate Design by A/E.Control Cables Installed (← links)
- 05000277/LER-1979-042, Forwards LER 79-042/01T-0 (← links)
- 05000278/LER-1979-026, Forwards LER 79-026/01T-0 (← links)
- 05000278/LER-1979-016-03, /03L-0 on 790628:while at Power,Routine Surveillance Test Revealed Setpoint of Switch 2 Was Below Tech Spec Min.Caused by Barton Model 288 Instrument Out of Calibr from Drift.Instrument Recalibr (← links)
- 05000277/LER-1979-023, Forwards LER 79-023/01T-0 (← links)
- 05000277/LER-1979-034-03, /03L-0 on 790703:following Surveillance Flow Test, Core Spray Loop a Test Valve MO2-14-26A Failed to Fully Close.Caused by backed-out & Distorted Valve Seat Ring.Pipe Hanger Repaired.Valve Repair Delayed Pending Unit Outage (← links)
- 05000277/LER-1979-035-01, /01T-0 on 790706:insp Program,Performed in Response to IE Bulletin 79-02,revealed 18 shell-type Anchors Which Failed to Torque Properly.Caused by Incorrect Installation.Anchors Properly Replaced (← links)
- 05000278/LER-1979-019, Forwards LER 79-019/01T-0 (← links)
- 05000278/LER-1979-013-01, /01T-0 on 790613:main Steam Relief Valve RV3-2-71L Lifted,Causing Torus Water Vol to Exceed Tech Spec Limit by 2.6%.Reactor Manually Scrammed.Valve Replaced & Sent to Wiley Lab to Determine Cause for Failure (← links)
- 05000278/LER-1979-013, Forwards LER 79-013/01T-0 (← links)
- 05000277/LER-1979-033-01, /01T-0 on 790712:two shell-type Anchors Failed Torque Test.Caused by Improper Installation.Bolts Replaced & Successfully Tested (← links)
- 05000277/LER-1979-033, Forwards LER 79-033/01T-0 (← links)
- 05000278/LER-1979-018-03, /03L-0 on 790630:during Surveillance Testing, Reactor Water Sample Line Isolation Valve Failed to Close. Caused by Lack of Valve Operator Spring Tension.Valve Operator Spring Tension Was Increased (← links)
- 05000278/LER-1979-017-31, /03L-0 on 790615:while Reactor Subcritical,D Main Steam Line Radiation Monitor Hi-Hi Trip Failed.Caused by Dirty Trip Relay or Dirty Test Switch Contacts. Condition Corrected by Repeated Testing (← links)
- 05000278/LER-1979-020-01, /01T-0 on 790621:radioactive Release Rate at Main Stack During Plant Startup Exceeded Tech Specs.Caused by Deficiency in Procedure for Depressurization Following Shutdown.Investigation Underway to Improve Procedure (← links)
- 05000278/LER-1979-020, Forwards LER 79-020/01T-0 (← links)
- 05000277/LER-1979-049-01, /01T-0:on 791101,four Seismic Supports Found W/Safety Factors of Less than Two.Caused by Engineering Design Deficiency.Redesign Performed.Corrective Action Implemented within Seven Days (← links)
- 05000277/LER-1979-049, Forwards LER 79-049/01T-0 (← links)
- 05000277/LER-1979-041-03, /03L-0:on 790905,inadvertently Opened 440-volt Breaker Switch Made RHR Loop Injection Valve Inoperable. Caused by Breaker Switch Being Hit by Scaffolding Transported Through Area.Breaker Switch Reclosed (← links)