05000321/LER-1979-098-01, /01T-0:on 791210,HPCI Sys Not Proven Inoperable as Required by Tech Specs.Caused by Failure of Personnel to Consider Reactor Core Isolation Cooling Sys Inoperable After Trip on High Turbine Exhaust Pressure
JAFP-96-0391, Provides Supplemental Info Re Updated Page Changes for Proposed Change to TS Concerning Power Uprate
NG-92-5179, Request for TS Change RTS-249 to License DPR-49,adding TS 3.0 & 4.0,corresponding Bases & Modifying Existing Specs Consistent W/New Requirements Denoting Applicability of LCOs & Srs,Per STS & GLs 87-09 & 89-14
05000254/LER-1989-001-03, :on 890106,RCIC Pump Discharge Inboard Isolation Valve Failed to Open from Full Closed Position. Caused by Binding of Torque Switch on Valve Operator.Switch Replaced.Reportability Per Part 21 Possible
05000265/LER-1992-015-03, :on 920512,RCIC Sys Declared Inoperable Due to Unstable Operation of RCIC Flow Indicating Controller.Caused by Proportional Band Setting of Flow Set Too Low.Setting Increased to Stabilize Flow Oscillations
05000265/LER-1986-007-06, :on 860409,discovered That Core Spray Room Cooler 2B Inoperable.Caused by Pitting & Burning of Contacts on Motor Control Ctr Contactor That Supplies Power to Room Cooler Motor.Contactor Replaced
05000219/LER-1988-023, :on 880927,drywell Airlock Door Leak Rate Not Tested at Frequency or Test Pressure Required by 10CFR50, App J.Caused by Insufficient Administrative Controls.Tech Spec Change Under Review
05000254/LER-1988-003-01, :on 880125,valve Mo 1-1301-48 Failed to Open During Testing.Caused by Electrical Equipment Being Out of Adjustment.Torque Switch Bypass Adjusted Under Work Request Q63784 Using New Criteria
05000331/LER-1985-028, :on 850720,RCIC Sys Tripped on Overspeed While auto-starting During Monthly/Quarterly Testing.Caused by Faulty Flow Controller & Ramp Generator Operation
05000254/LER-1985-011-08, :on 850802 & 04,high RCIC Exhaust Pressure & RCIC Turbine Trip Alarms Annunciated.Caused by Water Dripping on Barksdale Pressure Switch.Switch Replaced & Hose Repositioned
05000331/LER-1985-039, :on 850918,RCIC-to-vessel Inject Valve BN-20-2512 Failed to Open on Demand.Possibly Caused by Unnecessarily High Setting of Valve Torque Switch.Switch Placed at Lower Setting
05000254/LER-1991-039-01, :on 910424,RCIC 1301-49 Pump Discharge Valve Failed to Open.Cause Is Unknown.Valve Disk Manually Cracked Off Seat & Valve Stroked Afterwards
05000331/LER-1984-025, :on 840808,electrical Supply Breaker for RCIC Steam Supply Valve Tripped Each Time Valve Cycled Closed. Caused by Torque Switch Out of Adjustment.Torque Switch Readjusted
05000331/LER-1984-031, :on 840903,barometric Condenser High Pressure Alarm in RCIC Sys Occurred.Caused by Inoperable Condenser Vacuum Pump.Rcic Declared Inoperable & 7-day Limiting Condition Initiated
05000293/LER-1995-007, :on 950804,simulated Automatic Test Was Not Performed for Automatic Depressurization Sys Prior to Plant Restart from Refueling outage-10 Due to Personnel Error. Performed Required SAA Surveillance Test
05000333/LER-1984-003, :on 840207,while HPCI Intentionally Out of Svc for Maint & Mod,Rcic Sys Declared Inoperable.Caused by Personnel Error.Personnel Counseled & Training Program Implemented
05000331/LER-1982-056-01, /01T-0:on 820912,HPIC Area Steam Leak Alarm Activated by Temp Differential Switch TD8-2260A,resulting from Leak Due to Temp Difference Between Ventilation Intake & Exhaust.Caused by False Signal Due to Resistor Failure
05000260/LER-1982-014-03, /03L-0:on 820420,HPCI Sys Made Inoperable for Calibr of Speed Sensing & Control Circuits W/O Performing Surveillance Tests.Caused by Personnel Error in Failing to Determine Inoperability
05000254/LER-1982-005-03, /03L-0:on 820325,reactor Core Isolation Cooling Sys Failed to Operate During Monthly Test Qos 1300-2.Caused by Ground in Logic Circuit Initiating Low Voltage at Electrical Overspeed Trip Sensor
05000277/LER-1990-002-03, :on 900402,shutdown Required to Comply W/Tech Specs W/One Inoperable Automatic Depressurization Sys (ADS) Valve Completed.Caused by Component Failure for K Automatic Depressurization Sys Valve
05000321/LER-1981-047-03, /03L-0:on 810604,reactor Core Isolation Cooling Turbine Bearing Oil Low Pressure Annunciator Alarmed Due to Low Oil Level.Caused by Small Oil Leaks from Connection on Sight Glass & Governor Hearing Fitting
05000321/LER-1981-049-03, /03L-0:on 810605,reactor Core Isolation Cooling Valve Would Not Open by Control Switch During Testing.Caused by Relay Cover Binding on Logic Relay.Relay Cover Installed Correctly
05000265/LER-1980-025-03, /03L-0:on 801007,while Performing Qos 1300-3, Reactor Core Isolation Cooling Motor Operated Valve Operability,Valve MO-2-1301-49 Could Not Be Fully Opened. Caused by Limit Switches Out of Position.Switches Adjusted
05000265/LER-1988-003-03, :on 880301,while Performing RCIC Monthly Test, RCIC Pump Could Only Achieve 400 Gpm Against Discharge Pressure of 500 Psig.Caused by Failed Hydraulic Actuator on Turbine Governor Valve.Actuator Replaced
05000321/LER-1979-022-03, /03L-0 on 790120:during Normal Operation & Procedure HNP-1-3405,core Isolation Cooling Min Flow Valve (E51-F006) Failed to Close Automatically at 80 Gpm.Caused by Failure of Open Limit Switch
05000219/LER-1995-003, :on 950531,discovered That Six Month Drywell Airlock Leak Rate Test Conducted After Due Date.Caused by Inappropriate Application of 25% Surveillance Interval Extension.Surveillance Task Revised