Pages that link to "05000277/LER-1979-002, Forwards LER 79-002/01T-0"
Jump to navigation
Jump to search
The following pages link to 05000277/LER-1979-002, Forwards LER 79-002/01T-0:
Displayed 50 items.
- ML20099A301 (redirect page) (← links)
- 05000277/LER-1979-002 (redirect page) (← links)
- 05000277/LER-1979-002-01, /01T-0 on 790108:cable Spreading Room Cardox Sys Disabled W/O Firewatch Present.Absence Due to Failure of Personnel to Notify Shift Supervisor Upon Work Completion (← links)
- 05000278/LER-1979-036-03, /03L-0:on 791105,leak Rates Exceeded Tech Spec Limits.Caused by Debris Blocking Valve Closure.Sealing Surfaces Cleaned & Polished.Valves Retested & Returned to Svc (← links)
- 05000278/LER-1979-014, /O3L-0 on 790522:offsite Source Breaker SU25 Tripped on Low Air Pressure.Caused by Short Circuit in Light Socket & Dirty Contacts on Voltage Relay.Relay Contacts Cleaned & Socket Removed Pending Replacement (← links)
- 05000277/LER-1979-027, /O3L-0 on 790521:reactor Water Cleanup Inboard Isolation Valve Failed to Automatically Isolate in Test. Caused by Misaligned Limit Switch on Valve.Switch Adjusted & Maint Procedure Strengthened (← links)
- 05000278/LER-1979-015, /O3L-0 on 790523:automatic Depressurization Sys a Auto Blowdown Timer Trip Setting Found 13-s Less than Tech Spec Min.Caused by Setpoint Drift of Time Delay Relay.Relay Readjusted,Tested & Returned to Svc (← links)
- 05000277/LER-1979-029, /O3L-0 on 790524:firewatch Patrol Was Not Conducted While Fire Detection Sys Was Out of Svc for Const. Caused by Failure in Communications.Procedures Changed (← links)
- 05000277/LER-1979-008-03, /03L-0 on 790225:fuses Were Blown in Control Circuit of Main Steam Relief Valve RV-71L.Replacements Blew Immediately.Caused by Failed Solenoid & Short Circuit.Leads to Solenoid Lifted;Fuses & Solenoid Replaced (← links)
- 05000277/LER-1979-009-03, /03L-0 on 790213:fire Alarm Sys Malfunctioned, Causing Audible Signal to Alarm W/O Coding.Caused by Mechanical Binding of Cam in Alarm Box.Binding Problem Corrected & Sys Returned to Svc (← links)
- 05000277/LER-1979-053, Forwards LER 79-053/01T-0 (← links)
- 05000277/LER-1979-001-01, /01T-0 on 790104:design Errors in Cable Designations Were Identified.Ten Cables Found to Be Designated Nonsafeguard.Caused by Improper Designation of Cables During Design Phase.New Cable Routing Completed (← links)
- 05000277/LER-1979-001, Forwards LER 79-001/01T-0 (← links)
- 05000277/LER-1979-051-01, /01T-0:on 791121,fire Pump Controls Removed from Svc to Permit Mod on Fire Header.Diesel Pump Found to Be Inoperable.Caused by Dirty Relay Contacts in Regulator Circuit.Contacts Cleaned & Pump Returned to Svc (← links)
- 05000277/LER-1979-051, Forwards LER 79-051/01T-0 (← links)
- 05000277/LER-1979-032-01, /01T-1 on 790626:insp of Seismic Class I Supports Revealed 92 W/Safety Factors of Less than 5,w/8 Having Safety Factors of Less than 1.Caused by Inadequate Design. All Mods Completed by 790719 (← links)
- 05000277/LER-1979-032, Forwards LER 79-032/01T-1 (← links)
- 05000277/LER-1979-011, Forwards LER 79-011/01T-0 (← links)
- 05000277/LER-1979-023-04, /04T-0 on 790515:routine Ph Analysis of Sewage Plant Effluent Identified Ph of 5.8 Which Exceeded Tech Specs.Caused by Air Blower Failure Which Allowed Dissolved Oxygen to Drop to 0 & Aeration Tank to Become Anaerobic (← links)
- 05000278/LER-1979-006-03, /03L-1 on 790212:at Power & During Surveillance Test,Setpoint of B Core Spray Pump Start Timer Was Less than Tech Spec Min.Caused by Setpoint Drift on GE Model CR-2820 Time Delay Relay.Relay Readjusted & Tested (← links)
- 05000277/LER-1979-010-01, /01T-0 on 790226:power & Control Cables Associated W/Recirculation Pump Discharge Valves & Bypass Valves Were Found Routed in non-safeguard Cable Trays.Caused by Improperly Designated Cables During Design Phase (← links)
- 05000277/LER-1979-010, Forwards LER 79-010/01T-0 (← links)
- 05000277/LER-1979-014-03, /03L-0 on 790327:trip Setpoint Drift of Drywell High Pressure Switch Was Beyond Tech Spec Limit.Caused by Static-O-Ring Model 12N-AA4 Being Out of Calibr Due to Setpoint Drift.It Was Recalibrated & Returned to Svc (← links)
- 05000278/LER-1979-009-03, /03L-0 on 790307:calculated Torus Water Level Did Not Provide Proper Torus Water Vol Per Tech Spec.Caused by Failure to See Pressure Differential Between Drywell & Torus Holds Level in Downcomers Was Below Torus Level (← links)
- 05000277/LER-1979-008-01, /01T-0 on 790219:steady State Power Level Exceeded License Limit by Less than 2% for About 6-h.Caused by Error Calculating Scanned Feedwater Flow.Power Reduced to License Limit (← links)
- 05000277/LER-1979-008, Forwards LER 79-008/01T-0 (← links)
- 05000277/LER-1979-026-01, /01T-0 on 790524:during Startup,Offgas Stack Radiation Monitors Were Inoperable for 9-h,due to Failure of Operating Sample Pump.Caused by Broken Belt.Belt Replaced (← links)
- 05000278/LER-1979-002-01, /01T-0 on 790108:roof Vent Stack Instantaneous Gas Release Rate Above Tech Spec Limit Due to Valve Operator Failure,Causing Loss of Inservice RHR Loop,Rise in Coolant Temp & Gaseous Release Via Core Isolation Cooling Valves (← links)
- 05000278/LER-1979-002, Forwards LER 79-002/01T-0 (← links)
- 05000277/LER-1979-024, Forwards LER 79-024/01T-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)
- 05000277/LER-1979-028, Forwards LER 79-028/03L-0 (← links)
- 05000278/LER-1979-004-03, /03L-0 on 790117:during Surveillance Test,Setpoint of PS-3-14-44D Found to Be Greater than Tech Spec Max.Caused by Setpoint Drift on static-o-ring Model 5N-AA3 Pressure Switch.Instrument Recalibrated (← links)
- 05000278/LER-1979-001-03, /03L-0 on 790111:discovered That Recorded hi-hi Trip Valve for Steam Line Radiation Monitor Was 50 man-rem/h Greater than Tech Spec Limit & No Corrective Action Taken. Caused by Procedural Deficiency (← links)
- 05000278/LER-1979-037-03, /03L-0:on 791113,during Surveillance Testing on Rod Sequence Control Sys,Sequence Mode Found Inoperable. Caused by Failure in Integrated Circuit Chip on Sequence Logic Board.Integrated Circuit Chip Was Replaced (← links)
- 05000278/LER-1979-019-01, /01T-0 on 790621:during Seismic Support Insp Program, Reactor Core Isolation Cooling Piping Anchor Discovered to Have Two Bolts That Could Not Be Torqued. Caused by Improper Installation of Bolt Shells (← links)
- 05000278/LER-1979-011, Forwards LER 79-011/01T-0 (← 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)