Pages that link to "4l4l7l-l1l7l9l"
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The following pages link to 4l4l7l-l1l7l9l:
Displayed 50 items.
- 05000423/LER-1989-020, :on 890830,potential Security Barrier Breach Discovered Via 8 Inch Main Steam Sys Pipe Opening.Caused by Inadequate Administrative Control to Identify Breaches. Supplementary Leak Collection Sys Restored (← links)
- 05000336/LER-1986-007-01, :on 860901,during Monthly Control Room Surveillance Check,Steam Generator 1 Level Indication on Remote Shutdown Panel Indicated Zero Percent.Caused by Failure of Amplifier Assembly (← links)
- 05000336/LER-1987-010-01, :on 870730,inadequacies Identified in Fire Protection Coating on Raceway Support Structures in Main Cable Vault & Hallway Leading to Charging Pumps.Hourly Fire Watch Started & Automatic Sprinkler Installed (← links)
- 05000245/LER-1988-010, :on 881115,noticed That One of Hydraulic Snubbers Had No Visible Signs of Fluid in Reservoir.Caused by Small Crack at Base of Plastic Reservoir.Visual Insp of All Snubbers in Containment Performed (← links)
- 05000336/LER-1987-007, :on 870416,reactor Tripped Automatically Due to Turbine Trip Caused by Generator Exciter Field Breaker Opening.Caused by Generator Volts/Hertz Relay Actuation. Emergency Operating Procedure 2525 & 2526 Done (← links)
- 05000336/LER-1989-007, :on 890613,condensate Polishing Facility Radiation Monitor 2-CND-RE-245 Operated W/O Source Check. Caused by Personnel Error.No Corrective Action Taken as Check Added to Procedure Before Violation (← links)
- 05000336/LER-1989-005-02, :on 890330,automatic Test Insertion (ATI) Module Connector Did Not Mate Smoothly W/Engineered Safeguard Actuation Sys Cabinet Socket Resulting in Safety Injection Actuation Signal Actuation (← links)
- 05000245/LER-1989-012, :on 890429,while Switching Reserve Stations Svc Transformer,Loss of Normal Power Occurred Prior to Deenergizing Transformer.Caused by Incomplete Undervoltage Load Shed Scheme.Scheme Modified (← links)
- 05000336/LER-1988-006, :on 880218,local Leak Rate Testing Determined Combined Bypass Leakage Exceeded Tech Spec 3.6.1.2.C Limit. Caused by Debris Being Lodged in Seat Area of Valve.Duplex Strainer Installed in Piping Sys (← links)
- 05000423/LER-1989-006, :on 890224,found That Surveillance Procedure in Error & Did Not Identify Six Addl Smoke Detectors.Caused by Administrative Error.Surveillance Procedure Updated to Comply W/Final Sys Design & Tech Specs (← links)
- 05000245/LER-1989-008, :on 890414,leakage Noted in Excess of Flow Instrumentation.Cause Not Known at Present.Atmospheric Control Valves Which Failed to Pass Local Leak Rate Test Will Be Inspected & Repaired as Required (← links)
- 05000423/LER-1989-019, :on 890804,discovered That Isolation Valve for Fire Protection Hose House 3 in Closed Position,Rendering Hose House Inoperable.Caused by Administrative Deficiency. Valve Restored & Instruction Revised (← links)
- 05000245/LER-1989-007-01, :on 890411,visual Insp Revealed That One Hydraulic Snubber Had No Visible Signs of Fluid in Reservoir.Caused by Piston O-ring Displaced from Retainer During Testing.Snubber Rebuilt & Reinstalled (← links)
- 05000423/LER-1989-012, :on 890605 & 15,during Performance of Local Leak Rate Testing,Specific Piping Penetrations Could Not Be Pressurized to Test Pressure.Caused by Swing Check Valve Not Being Fully Seated Prior to Test.Valve Removed (← links)
- 05000336/LER-1988-011, :on 881025,loss of Normal Power on Both 4160-volt Vital Ac Buses Caused Reactor Trip & ESF Actuation.Caused by Personnel Error.Procedure Rewritten to Assure Proper Use of Ground & Test Devices (← links)
- 05000423/LER-1989-007, :on 890403,control Bldg Ventilation Not Placed in Filtered Recirculation.Caused by Personnel Error. Operations Policy Revised to Require Compensatory Action.W/ (← links)
- 05000245/LER-1989-006-01, :on 890407,drywell Leakage Rate Exceeded 2.5 Gallons Following Reactor Scram.Caused by Packing Leak on Inboard Main Steam Drain Line Isolation Valve.New Valve Packing Program Implemented (← links)
- 05000245/LER-1989-015, :on 890602,reactor Scram Occurred During Startup Due to Condenser Low Vacuum.Caused by Personnel Error.Operations Dept Instruction 1-OPS-2.01 Revised.Event Discussed in Detail W/Operators Involved (← links)
- 05000423/LER-1989-011-01, :on 890527 & 0603,as-found Local Leak Rate Testing Containment Unfiltered Leakage Exceeded Tech Spec Limit.Caused by Poor wedge-to-seat Fit.Wedge Angle Changed & Valve Seats Resurfaced to Ensure Proper Seal (← links)
- 05000245/LER-1989-003-02, :on 890323,design Deficiencies Identified on Reactor Bldg Closed Cooling Water Sys.Caused by Original Analyses Considering Closed Cooling Water Sys Piping as closed-loop Sys.Design Change Initiated (← links)
- 05000336/LER-1989-004-01, :on 890320,visual Insp of Mechanical Tube Plug Showed Indications of Circumferential Cracking at Top of Plug,Above Expander.Caused by Cracking Induced by Primary Water Stress Corrosion Cracking.Tube Removed (← links)
- 05000423/LER-1989-009, :on 890511,reactor Trip Occurred Causing Control Rods to Unlatch.Caused by Procedural Inadequacy. Procedures Changed to Require Rods to Be Unlatched Before Connecting Rod Drop Time Recording (← links)
- 05000423/LER-1989-010-01, :on 890512,setpoint Drift Identified While Testing Main Steam Safety Valves.Cause Unknown.Setpoints on Valves Reset to Tech Spec Requirements (← links)
- 05000245/LER-1986-018, :on 860524,automatic Actuation of Reactor Protection Sys Occurred During Withdrawal of Source Range Monitor (Srm).Caused by Chattering SRM Drive Relays.Drive Relays Replaced by Relays W/Arc Suppression (← links)
- 05000245/LER-1989-011, :on 890511,four of Six Valves Identified as Failing to Open at Desired Set Pressures,Per Tech Specs. Caused by Mild Oxidic Bonding Between Pilot Disc & Seat. Valves Rebuilt (← links)
- 05000423/LER-1989-008, :on 890506,manual Reactor Trip Initiated Due to Anticipated Turbine Trip.Caused by Design Deficiency in That Traveling Screen Capacity Was Inadequate.Procedure Change Implemented (← links)
- 05000336/LER-1989-006, :on 890510,operator Attention Drawn to Trouble Rept Associated W/Valve 1-EB-91.Also on 890516,determined That Unit Operated Outside Tech Specs 3.6.3.1 Requirements. Caused by Personnel Error.Operators Instructed (← links)
- 05000336/LER-1989-003, :on 890209,leakage Test of Charging Sys Penetration 3 Caused Combined Leakage Rate of Spec 3.6.1.2.b to Be Exceeded & Test Vol Could Not Be Pressurized to Pa for Testing.Caused by Sticking Valve Packing (← links)
- 05000336/LER-1989-002-02, :on 890204,six of Sixteen Valves Tested Failed Initial Simmer Test.Cause Unknown.One Valve Passed Next Two Consecutive Tests W/O Further Adjustment.Four Valves Adjusted in Place (← links)
- 05000245/LER-1989-001-01, :on 890131,reported RWCU Sys May Not Isolate During Small Break LOCA Due to Questionable Environ Qualification.Sys Immediately Isolated & Design Change Processed to Provide Addl Sys Isolation (← links)
- 05000336/LER-1989-001-02, :on 890202,inoperability of Two Fire Barrier Cable Penetration Seals Which Had Been Permanently Resealed Determined.Caused by Personnel Error.Roving Hourly Fire Watch Initiated (← links)
- 05000423/LER-1988-026, :on 881118,discovered That Certain Circumstances Could Lead to Facility Becoming Isolated from Plant Switchyard While on-line.Caused by Inadequate Plant Design.Mod Planned for Next Refueling Outage (← links)
- 05000423/LER-1988-024, :on 881022,manual Reactor Trip Due to Imminent Turbine Trip Due to Low Condenser Vacuum.Caused by Environ Conditions.Mods to Travelling Screen Sys Trash Trough to Increase Debris Removal Capability Implemented (← links)
- 05000336/LER-1990-017-01, :on 901010,discovered That Svc Water Pipe Support Inadequate (← links)
- 05000423/LER-1988-021, :on 880819,area Temp for Environ Zone AB-06 Not Taken within Required 12 H Surveillance Interval.Caused by Personnel Error.Manual Area Temp Data Retrieval in Zone AB-06 Reinitiated (← links)
- 05000336/LER-1993-002, :on 930107,determined That LCO, Accident Monitoring Not Entered Upon Entry Into Mode 3.Caused by Incomplete Application of Change to Ts.Event Will Be Reviewed by All Licensed Operators (← links)
- 05000423/LER-1992-030-01, :on 921209,discovered Outside Air Temperature Fell Below Outside Air Temp Design Basis for Charging Sys.Caused by Outside Air Temperature Dropping Below 17 Degrees.Amend to License Issued (← links)
- 05000423/LER-1992-028, :on 921116,reactor Trip Signal Occurred Due to IR High Level Signal.Caused by Cognitive Personnel Error. Review of Prerequistes & Methods for Conducting Surveillance Testing Underway (← links)
- 05000423/LER-1992-010-01, :on 920401,discovered That Surveillance Requirements Not Met Re Testing of Atmosphere Cleanup Filter Units.Caused by Failure to Identify Proper Surveillance Test Requirements.Procedures Revised (← links)
- 05000423/LER-1990-020, :on 900614,both Trains of Quench Spray & High Pressure Safety Injection Declared Inoperable.Caused by Deficient Surveillance Procedure.Surveillance Procedure on Svc Water Sys HXs Changed (← links)
- 05000423/LER-1990-023, :on 900615,determined That Both Trains of Containment Recirculation Pump Area Coolers Inoperable Due to Fouling of Cooler Hxs.Caused by Inadequate Surveillance Procedures.Hxs Cleaned & Repaired (← links)
- 05000336/LER-1990-015-02, :on 900919,containment Purge Valves 2-AC-4, 2-AC-5,2-AC-6 & 2-AC-7 Inadvertently Isolated (← links)
- 05000245/LER-1990-012-01, :on 900813,determined That hi-hi Trip Settings on Both Offgas Instrument Drawers Set in Nonconservative Direction & Exceeded Tech Spec 3.8.B.1.Caused by Failure to Recognize Significance of Response Factor (← links)
- 05000336/LER-1993-014, :on 930714,discovered Surveillances Procedures Had Not Been Performed within Specified Time Intervals Due to Insufficent Planning.Missed Surveillances Immediately Performed (← links)
- 05000245/LER-1993-009-02, :on 930706,inoperability of LPCI Sys Due to Outboard LPCI to Recirculation Loop Valve 1-LP-9B Failed to Open Electrically After Being Manually Opened.Declutch Fork & Clutch Repositioned (← links)
- 05000336/LER-1990-010-02, :on 900621,door Identified in Configuration Not Consistent W/Bechtel Design Drawings During High Energy Line Review.Caused by Lack of Knowledge of Requirements.Double Door Reinforced (← links)
- 05000336/LER-1990-009-02, :on 900617,inadvertent Partial Actuation of Train B of Enclosure Bldg Filtration Sys Occurred.Root Cause Not Determined.No Corrective Actions Recommended Until Further Testing & Troubleshooting Performed (← links)
- 05000423/LER-1990-021, :on 900607,integrated Leak Rate Test Supply & Exhaust Valve 3HVU*V5 Discovered Unlocked & Opened.Caused by Failure to Use Applicable Procedure for Nonroutine Evolution.Valve Closed & Locked (← links)
- 05000423/LER-1990-019, :on 900606,automatic Reactor Trip from Negative Flux Rate Signal Occurred Due to Dropped Control Rod.Caused by Broken Connection in Stationary Coil Power Cable for Rod. Special EOP Performed & Connector Replaced (← links)
- 05000336/LER-1993-012, :on 930524,turbine & Reactor Tripped During Mussel Cook (Thermal Backwash) Due to Lack of Heat Removal Capabilities from Main Generator Stator Water Cooling Sys. Installed Thermoconductivity Filler (← links)