Pages that link to "NRC Form 300"
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The following pages link to NRC Form 300:
Displaying 50 items.
- ML20207F349 (← links)
- ML20217P195 (← links)
- ML20217J213 (← links)
- 05000369/LER-2020-001, Condition Prohibited by Technical Specification 3.4.15, Reactor Coolant System (RCS) Leakage Detection Instrumentation (← links)
- 05000293/LER-1989-026, :on 890830,automatic Scram Signal & Reactor Scram Resulted in turbine-generator Trip & Opening of 345 Kv Switchyard Air Circuit Breakers.Caused by Automatic Turbine Runback.Wiring to Relays Reversed (← links)
- 05000483/LER-1989-011-01, :on 890905,ESF Containment Purge,Control Room Ventilation & Fuel Bldg Ventilation Isolations Received. Caused by Failed 15-volt Dc Power Supply in Train B ESF Cabinet.Power Supply Replaced & Tested (← links)
- 05000440/LER-1989-005, :on 890224,drywell Head Holddown Bolts Found Detensioned When Head Removed for Refueling Outage.Caused by Inappropriate Original Installation Torque Value.Site Installation Instruction Revised (← links)
- 05000267/LER-1989-015, :on 890817,Region 19 CRD Pair Failed to Properly Insert During Weekly Partial Scram Test.Caused by Failed Clevis Bolt Head That Became Logged Between Control Rod Absorber Strings & Guide Tube (← links)
- 05000293/LER-1988-006, :on 880203,trip Signal Generated Unexpectedly from ATWS Div 2 Circuitry Resulting in Automatic Trip of Recirculation Sys Pumps & Subsequent Reactor Protection Sys Scram Signal.Cause Not Conclusively Determined (← links)
- 05000259/LER-1998-001-03, :on 980414,standby Gas Treatment Sys HEPA Filter Testing Was Not in Compliance W/Ansi Std Requirements.Caused by Lack of Understanding of DOP Testing. Filter Testing Training Will Be Provided (← links)
- 05000482/LER-1989-016, :on 890809,discovered That Surveillance Procedure for Train B Reactor Trip Breaker Trip Actuating Device Operational Test Not Performed by 890703.Caused by Personnel Error.Program Enhancement Made (← links)
- 05000266/LER-1998-012, :on 980330,discovered That twenty-seven Containment Penetration Pressure Tests Had Not Been Performed.Caused by Inadequate Program Monitoring & Mgt. Submitted Relief Request & Initiated Root Cause Evaluation (← links)
- 05000325/LER-1988-034, :on 881216,clearance Hug on Drywell Instrument Air Sys Which Could Have Prevented Secondary Containment Isolation Dampers from Operating as Required.Caused by Design Deficiency.Standing Instruction Issued (← links)
- 05000321/LER-1989-005-02, :on 890328,determined That Portion of Contacts Between Sensor & Actuated Device of Lo Lo Set Sys Not Included in Sys Logic Functional Test.Caused by Personnel Error.Test Method Developed (← links)
- 05000293/LER-1989-016, :on 890518,unplanned Reactor Protection Sys Scram Signal Occurred While Shutdown.Caused by Personnel Error.Reactor Mode Selector Switch Moved to Refuel Position & Reactor Protection Sys Reset (← links)
- 05000440/LER-1987-074, :on 871114,RCWU Inboard Containment Isolation Occurred Due to High Differential Flow.Caused by Detector Low Flow Inaccuracies & Low Voltage Clip at Square Root Converters.Flow Design Will Be Evaluated & Changed (← links)
- 05000414/LER-1987-007, :on 870224,reactor Trip Occurred.Caused by Mgt Deficiency & Equipment Failures.Undervoltage Condition 2EPD on Computer & Feeder Breaker to 2EPD Repaired.Update of Events Issued to Personnel (← links)
- 05000382/LER-1998-013, :on 980701,IST Valve Surveillances Were Missed. Caused by Inadequate Processing of Info Transferred Between Operations Procedure Group & Programs Engineering.Procedure Revised (← links)
- 05000352/LER-1987-055, :on 871002,nonconformance W/Fire Safe Shutdown Requirements Identified.Caused by Procedure Deficiency.Flow Switch Relays Removed & Flow Switch Deenergized.App R Review Evaluated (← links)
- 05000440/LER-1987-050, :on 870704,unexpected Reactor Protection Sys Actuation Occurred Due to Upscale Trip of Neutron Monitoring Sys Intermediate Range Monitor.Caused by Grounding Deficiencies in Plant Ground Grid.Design Change Initiated (← links)
- 05000281/LER-1987-004-03, :on 870831,while Performing Surveillance Procedure,Containment Cooling Water Outlet Header Isolation Trip Valve Found Inoperable.Caused by Ruptured Diaphragm in Air Pilot Relay.Relay Replaced (← links)
- 05000317/LER-1986-006-01, :on 861010,reactor Tripped Due to Loss of Load Trip as Result of Turbine Trip from Partial Loss of Condenser Vacuum.Caused by Operator Error.Operating Shift Will Be Briefed on Test Procedure (← links)
- 05000409/LER-1986-030, :on 860919,high Flux Scram Received on Nuclear Instrumentation Channel 6,causing Fast Spike from 19 to 36% of Scale.Caused by Malfunction of Instrument Channel. Replacement Nuclear Instrumentation Ordered (← links)
- 05000366/LER-1986-023-01, :on 860903,reactor Protection Sys Scram Occurred.Caused by Leaking Oil Filter Gasket Initiating Main Turbine trip.Electro-hydraulic Control Leak Repaired, Procedures Revised & Personnel Counseled (← links)
- 05000483/LER-1986-038, :on 861107,containment Purge Isolation Signal & Control Room Ventilation Isolation Occurred Due to Increased Gaseous Radioactivity Levels in Containment.Caused by Unanticipated Leakage from Pressurizer PORV Block Valve (← links)
- 05000370/LER-1986-017-02, :on 860827,reactor Tripped Due to Malfunctioning Operator in Valve 2CF26.Caused by Malfunction of Electric Coil in Solenoid Valve.Coil Replaced (← links)
- 05000409/LER-1986-025, :on 860821,containment Bldg Ventilation Isolation Occurred on High Gaseous Activity Monitor Alarm. Caused by Welding.Correlation Between Welding & Increased Gaseous Activity Checked (← links)
- 05000369/LER-1986-015-03, :on 860819,discovered That Required Surveillance on source-range Neutron Flux Monitors Missed & Operational Test for source-range Neutron Flux Monitor Not Performed on 860803 (← links)
- 05000280/LER-1986-030, :on 861029,number of Inoperable Control Room Chillers Exceeded Requirements of Tech Spec 3.14.Caused by Reduced Water Flow Due to Marine Growth in Svc Water Line. Growth Removed & Chillers Returned to Svc (← links)
- 05000321/LER-1986-036, :on 861020,inadvertent Actuation of Standby Gas Treatment Sys Occurred.Caused by Personnel Error.Personnel Counseled & Need to Perform Detailed Reviews of Electrical Clearances Emphasized (← links)
- 05000316/LER-1986-021, :on 860707,during Troubleshooting of source- Range Nuclear Instrument N-32,spike on ESF Signal Occurred. Procedures Revised to Permit Bypassing Reactor Trip Function During Troubleshooting (← links)
- 05000529/LER-1986-009, :on 860219,during Cold Shutdown,Train B Main Steam Isolation Signal Actuation Occurred,Actuating Esf. Caused by Incorrect Amperage fuse.Eight-amp Fuse Installed in Affected Path (← links)
- 05000346/LER-1986-026, :on 860703,results of Maint & Testing Identified Tubing in Atmospheric Vent Valves Too Restrictive to Achieve Required Closing Time.Tubing Between Air Cylinder & Vol Tank Redesigned (← links)
- 05000325/LER-1987-003-01, :on 870202,control Bldg HVAC Automatically Isolated Due to Spurious Chlorine Detector Alarm.Caused by Lack of Electrolyte Solution Drip Flow from Detector Orifice to Detector Probe.Orifice Cleaned & Adjusted (← links)
- 05000322/LER-1986-028, :on 860710,environmentally Unqualified Jumper Wires Installed in Valve Operators Contrary to License Condition.Caused by Inability to Provide Documentation for Jumpers.Faulty Valve Operators Replaced (← links)
- 05000366/LER-1987-003-01, :on 870126,during Main Steam Line Radiation Monitor Functional Test,Primary Containment Isolation Sys Group 1 Isolation Occurred.Caused by Equipment Failure. Temp Sensor Will Be Replaced (← links)
- 05000320/LER-1986-012-02, :on 861214,sprinkler Nozzle (IEEE Code Nzl) for Control Room Bypass Charcoal Filter AH-F-5 Logged Inoperable.Caused by Personnel Error.Nozzle Cleaned,Retested & Returned to Svc (← links)
- 05000423/LER-1987-006, :on 870201,shift Supervisor Discovered That Surveillance of Area Temp Monitoring in TN-02 Area Not Performed within Alloted Time Frame.Caused by Personnel Error.Personnel Reminded of Duties (← links)
- 05000321/LER-1986-040, :on 861005,RWCU Sys Isolated on High Area Temp Signal.Caused by Actual High Air Temps in RWCU Pump Room Due to Tripped Air Handling Unit (AHU) & Leaking Valves.Ahu Reset & Valves Replaced (← links)
- 05000320/LER-1986-010-02, :on 860930,radiological Controls Technician Discovered AMS-3 at Reactor Bldg Equipment Hatch Exhibiting Failure Light.Caused by Personnel Error.Faulty Detector Replaced & One Hatch Door Closed (← links)
- 05000287/LER-1986-003-01, :on 861028,radiation Indication Alarm Turbine Bldg Sump Monitor 3RIA-54 Discovered in Bypass Position. Caused by Defective Procedure Not Requiring Return to Normal Position After Placement in Bypass (← links)
- 05000483/LER-1986-029, :on 860825,reactor Manually Tripped Due to Rod Control Sys Failure Following Turbine Runback.Caused by Slave Cycler Control Card Failure.Card Replaced & Cooling to Rod Control Cabinets Increased (← links)
- 05000245/LER-1986-032-01, :on 861230,two of Four Condenser Low Vacuum Pressure Switches Failed to Meet Tech Spec Setpoint Requirements During Routine Surveillance.Caused by Downward Mechanical Setpoint Drift.Switches Reset (← links)
- 05000366/LER-1987-002-02, :on 870215,auto-initiation of Standby Gas Treatment Sys Occurred.Caused by Personnel Error & Failed Radiation Monitoring Instrument.Equipment Components Replaced (← links)
- 05000331/LER-1987-002, :on 870214,automatic Isolation of Control Bldg Ventilation Sys & Initiation of Standby Filter B Occurred. Caused by Incorrect Setting of Downscale Trip Point of Radiation Monitor.Trip Point Lowered (← links)
- 05000410/LER-1986-023-01, :on 861223,inoperable Fire Detector Discovered During Routine Insp.Caused by Personnel Removing Detector from Base Prior to Replacement,Per 861222 Work Request. Surveillance Procedure Will Be Developed (← links)
- 05000281/LER-1986-019-01, :on 861201,individual Rod Position Indicators (Irpi) for Control Rods Out of Calibr.Caused by Instrument Drift.All Inoperable Irpis Recalibr & Returned to Svc (← links)
- 05000315/LER-1986-023-01, :on 861122,turbine Trip/Reactor Trip Occurred. Caused by Adjustment of Thrust Bearing Wear Detector Drifting to Point Where Turbine Shaft Displacement Would Generate Trip Signal.Detector Adjusted (← links)
- 05000315/LER-1986-013-01, :on 860513 & 0606,procedural Deficiencies Re Actuation of Auxiliary Feedwater Sys Components on Loss of 4-kV Bus Voltage Noted.Procedures Literally Inconsistent W/ Tech Specs.Procedures Revised (← links)
- 05000328/LER-1986-001-04, :on 860525,discovered All Valves Located in Boron Injection Flow Path Not Verified in Correct Positions. Caused by Incorrect Statement in Surveillance Instruction. Surveillances Reviewed & Found Acceptable (← links)