Pages that link to "05000278/LER-2015-001"
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The following pages link to 05000278/LER-2015-001:
Displayed 50 items.
- 05000278/LER-1986-001, :on 860203,Group III Outboard Isolation Occurred & half-scram Signal Generated.Caused by Lowered Voltage When Recirculation Pump 2B Started.Alternate Feed to New Static Inverter May Be Changed (← links)
- 05000278/LER-1986-015-02, :on 860624,w/unit at 100% Power,Rwcu Sys Automatically Isolated.Caused by Wiring Error Resulting in Blown Fuse in RWCU Sys Electrical Circuit.Fuse Replaced.Mod Initiated to Correct Wiring Deficiency (← links)
- 05000278/LER-1988-006-02, :on 880624,partial Group II Outboard Isolation of Primary Containment Isolation Sys Occurred.Caused by Accidental Grounding of Terminal in Control Panel.Fuse 16A-F22 Replaced (← links)
- 05000278/LER-1999-002-02, :on 990406,safeguard Sys to Unrelated Door Was Inadvertently Disabled by Security Alarm Station Operator. Caused by Noncompliance with Procedures & Less than Adequate Shift Turnover.Briefed Personnel on Event.With (← links)
- 05000278/LER-1999-001-03, :on 990312,ESF Actuation of Rcics Occurred Due to High Steam Flow Signal During Sys Restoration.Temporary Change to Restoration Procedure Was Initiated to Open RCIC Outboard Steam Isolation Valve in Smaller Increments (← links)
- 05000278/LER-1988-010-02, :on 880923,primary Containment Isolation Sys Group III Isolation Occurred Resulting from Unexplained Momentary Loss of Power to a Reactor Protection Sys Bus. Isolation Reset After Approx 4 H & 25 Minutes (← links)
- 05000278/LER-1986-010-01, :on 860411,automatic Actuation of Reactor Protection Sys & Group 2 & 3 Isolations Occurred.Caused by Feedpump Min Flow Bypass Valves (AO-3139A,B & C) Failure Creating Low Reactor Water Level.Valves Fixed (← links)
- 05000278/LER-1986-016-02, :on 860719,Group II & III Isolations Occurred Due to High Neutron Flux Scram When Startup Source 3 Lost. Caused by Switchyard Fault & Abnormal Configuration of Fault Detection Circuit (← links)
- 05000278/LER-1986-007-02, :on 860305,during Performance of Routine Test RT 5.31, Crossaround Relief Valve Setpoint Check, Rod Sequence Control Sys Bypassed W/Reactor at Less than 21% Power.Caused by Procedure Inadequacy (← links)
- 05000278/LER-1986-005-02, :on 860306,low Level Scram & Group II & III Isolations Occurred as Reactor Pressure & Level Adjusted. Caused by Decrease in Main Condenser Vacuum Due to Maint Performed on Pump Drive Shaft (← links)
- 05000278/LER-1986-008-02, :on 860304,HPCI Sys Steam Supply Valve MO-3-23-14 Failed to Open During Test.Caused by Disloged Movable Contact on Culter-Hammer Device 538 Relay.Contact Repositioned (← links)
- 05000278/LER-1998-009-01, :on 981227,unplanned Esfa Were Noted.Caused by Transformer Insulator Failure.Replaced Failed Insulator. with (← links)
- 05000278/LER-1986-006-02, :on 860304,control Room Annunciator Core Spray Sys I Logic Power Failure Alarmed.Caused by Blown Fuses on Core a Spray Logic Due to Grounded Wires.Fuses Replaced (← links)
- 05000278/LER-1986-003, :on 860219,partial Containment Isolation Occurred When Plant Operator Removed Wrong Fuse While Applying Blocking Permit.Caused by Loose Fuse Label Strip. Label Secured W/Adhesive (← links)
- 05000278/LER-1986-012-02, :on 860426,full Scram Occurred While Testing 500-kV Line Fault Detection Circuit.Caused by Personnel Error.Personnel Instructed to Exercise More Caution in Performance of Tests (← links)
- 05000278/LER-1985-023, :on 851117,primary Containment Isolation Sys Valves Would Not Open.Caused by Personnel Removing Wrong Fuse During Maint.Fuse F3 Installed & Isolation Reset.W/ (← links)
- 05000278/LER-1986-013-02, :on 860426,neutron Monitoring Scram Occurred. Caused by Personnel Error While Performing Functional & Calibr Check of intermediate-range Monitors.Operator Disciplined (← links)
- 05000278/LER-1986-014-01, :on 860426,w/unit Shut Down,Scram Discharge Vol High Level Scram Occurred.Caused by Personnel Error.Operator Disciplined (← links)
- 05000278/LER-1985-015-02, :on 850930,combined Leakage of Type B & C Containment Leak Tests Exceeded Allowable Leak Rate Limit. Cause Will Be Investigated During Valve Insp.Valves to Be Repaired & Retested (← links)
- 05000278/LER-1998-005-03, :on 981025,inadvertent Unit 3 Electrical Bus E33 Trip (Esfa) During Performance of Unit 2 Electrical Bus E32 Surveillance Test Was Noted.Caused by Personnel Error. Sp S12M-54-E32-XXF4 Was Completed.With (← links)
- 05000278/LER-1986-011-02, :on 860425,partial Group III Isolation Occurred Due to Blown Fuse in Primary Containment Isolation Sys.Cause Unknown.Fuse 16A-F20 Replaced (← links)
- 05000278/LER-1988-003-02, :on 880520 & 22,primary Containment Isolation Sys Inboard Isolation & Half Reactor Scram Occurred.Caused by Reactor Protection Sys (RPS) Being Lightly Loaded.Rps Alternate Feed Breakers Reclosed (← links)
- 05000278/LER-1988-001-02, :on 880408,primary Containment Isolation Sys Actuated During Switching of 4kV Emergency Bus Feed.Caused by Lack of Procedural Guidance & Training.Procedures Revised (← links)
- 05000278/LER-1988-002-01, :on 880507,primary Containment Isolation Sys Group II RWCU Isolation Signal Generated as Result of Loss of Power to Temp Switch.Caused by 4-3R4 Tie Breaker Malfunction.Tie Breaker Removed & Serviced (← links)
- 05000278/LER-1988-003, :on 880520 & 22,primary Containment Isolation Sys Group III Inboard Isolation & Half Reactor Scram Occurred.Caused by Overvoltage Relay Drifting Out of Calibr.Event Mods Performed (← links)
- 05000278/LER-1988-008-02, :on 880829,primary Containment Isolation Sys Group III Inboard Isolations Occurred as Result of Reactor Protection Sys Feed Breaker Trips.Caused by Undervoltage Relay Out of Calibr.Relays Calibr (← links)
- 05000278/LER-1988-009-02, :on 880831,feeder Breaker to Emergency Bus E-2 Tripped & Power Lost to Bus Initiating Start & Loading of Generator.Probably Caused by Electricians Working in Cubicle Released for Work (← links)
- 05000278/LER-1988-002-02, :on 880507,primary Containment Isolation Sys Group II RWCU Isolation Signal Generated as Result of Loss of Power to Temp Switch.Caused by Tie Breaker Malfunction. Tie Breaker Removed from Svc & Inspected (← links)
- 05000278/LER-1988-005-03, :on 880613,RWCU Outboard Isolation Valve Logic Actuation Occurred on False Sys High Flow Signal.Caused by Small Piece of Insulation on Differential Pressure Indicating Switch Cable Missing (← links)
- 05000278/LER-1987-001-03, :on 880408,actuation of Primary Containment Isolation Sys Occurred During Switching of 4 Kv Emergency Bus Feed.Caused by Lack of Procedural Guidance & Training for Operators.Training Bulletin Issued (← links)
- 05000278/LER-1998-004-03, :on 980820,automatic RWCU Isolation Occurred While Placing B RWCU Sys Demineralizer in Svc.Caused by less-than-adequate Control of Equipment.Isolated B Demineralizer & Returned RWCU Sys to Svc (← links)
- 05000278/LER-1988-007-02, :on 880712,partial Group II Outboard Isolation of Primary Containment Isolation Occurred.Caused by Fuse Failure.Fuse Replaced & Isolation Reset (← links)
- 05000278/LER-1985-023-02, :on 851117,when Control Room Operator Proceeded to Establish Shutdown Cooling,Suction Valves to Sys Would Not Open.Caused by Plant Operator Removing Wrong Fuse While Applying Maint Permit (← links)
- 05000278/LER-1985-021-02, :on 850826,w/unit in Refuel Outage & No Fuel in Reactor Vessel,Reactor Protection Sys Initiated Full Logic Actuation Signals.Caused by Personnel Inadvertently Bumping intermediate-range Monitor Cables (← links)
- 05000278/LER-1985-025-01, :on 851101,Tech Specs Violated Due to Inoperable Snubbers.Caused by Procedure Not Indicating That CRD Sys Considered Inoperable Pending Repair of Inoperable Snubbers.Procedures Revised (← links)
- 05000278/LER-1988-004-02, :on 880613,discovered That Dampers in Emergency Bus Room Ventilation Duct Penetration Would Not Close.Caused by Ventilation Diffuser Located in Damper Track.Fire Watch in 4 Kv Switchgear Room Continued (← links)
- 05000278/LER-1988-005-02, :on 880613,RWCU Outboard Isolation Valve Logic Actuation Occurred on False Sys High Flow Signal.Caused by Equipment Failure.Insp & Rework of Class 1E Splices & Cables Performed.Isolation Reset (← links)
- 05000278/LER-1994-006-03, :on 941110,identified That Flow Input Signals to APRMs Reading Higher than Actual Core Flow Conditions. Caused by Change in Plant Operating Strategy.Aprms Adjusted (← links)
- 05000278/LER-1997-003-01, :on 970404,TS Noncompliance Due to Loss of 3C RFP High Water Level Trip,Occurred.Caused by Failure to Correlate Turbine/Reset Light Problem to Inoperability. Operating Shift Procedures Revised (← links)
- 05000278/LER-1986-009-02, :on 860318,manual Scram Occurred.Caused by Series of Personnel Errors Involving Failure to Withdraw Correct Control Rod & Verify Proper Position of Control Rod. Personnel Counseled & Procedures Revised (← links)
- 05000278/LER-1985-015, :on 850930,total Leakage of Type B & C Test Exceeded Leak Rate Limit.Caused by Several Valves Tested W/ Excessive Rates Contributing to Total.Valve Repaired & Retested Prior to Returning Unit to Operation (← links)
- 05000278/LER-1986-003-02, :on 860219,partial Containment Isolation Occurred When Operator Removed Wrong Fuse While Applying Blocking Permit.Caused by Misleading Fuse Label & Lack of Adequate Operator Attention.Fuse Label Secured (← links)
- 05000278/LER-1985-013, :on 850726,crack Indications Found in 40 RHR & Recirculation Piping Welds.Caused by Igscc.Eighteen Weld Overlays Repaired.Recirculation Inlet Safe Ends to Be Replaced During Next Refueling Outage (← links)
- 05000278/LER-1985-020-02, :on 851120,RHR Pump C Tripped & Caught Fire. Caused by Failed Impeller Eye Wear Ring.Fire Extinguished & New Wear Rings Installed (← links)
- 05000278/LER-1985-030-01, :on 851217,reactor Protection Sys Initiated Full Scram Due to False Intermediate Range Monitor (IRM) High Flux Signal.Caused by Accidental Bumping of IRM Cable. Sys Logic Reset (← links)
- 05000278/LER-1986-002-02, :on 860217,RWCU Sys Isolated While Unit in Shutdown Mode.Caused by Deenergization of RWCU Sys Nonregenerative HX Outlet Temp Switch by Technicians.Design Change Being Considered (← links)
- 05000278/LER-1985-029-01, :on 851213,RWCU Sys Isolated & Pump Tripped While Sys in Operation.Caused by Blown Fuse in RWCU Sys Logic.Fuse Replaced (← links)
- 05000278/LER-1985-018-02, :on 840711,fault Occurred in cross-tie Between North & South Substations During Lightning Storm.Caused by Insulator Strip Flashover Due to Lightning Strike.Offsite Power Restored to Plant Startup Bus (← links)
- 05000278/LER-1985-019-02, :on 851116,RWCU Sys Isolated on Unexpected High Temp Signal.Caused by Instrument Technicians Troubleshooting Wrong Temp Element on RWCU sys.TE-3-12-98 Leads Reconnected & RWCU Reset (← links)
- 05000278/LER-1997-001, :on 970122,determined Plant Thermal Power Exceeded 100% Due to Out of Tolerance Test Equipment.Retired Test Apparatus from Future Use & Will Review and Revise Procedures for Feedwater Temp Instruments (← links)