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| 05000348/LER-1985-001, :on 850214,gaps Along Portions of Tops of Two Fire Walls Not Sealed within 7 Days as Required by Tech Spec 3.7.12.Firewatch Patrols Established.Design Changes Developed & Implemented for Sealing Gaps |
- on 850214,gaps Along Portions of Tops of Two Fire Walls Not Sealed within 7 Days as Required by Tech Spec 3.7.12.Firewatch Patrols Established.Design Changes Developed & Implemented for Sealing Gaps
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| 05000348/LER-1985-001-01, :on 850214,unsealed Gaps Discovered Between Tops of Two Masonry Fire Walls & Room Ceilings.Cause Unknown.Design Changes Developed to Seal Gaps |
- on 850214,unsealed Gaps Discovered Between Tops of Two Masonry Fire Walls & Room Ceilings.Cause Unknown.Design Changes Developed to Seal Gaps
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| 05000364/LER-1985-001, :on 850119,nine Tubes in Steam Generator 2A Plugged Based on Eddy Current Testing Results.Cause Not Stated |
- on 850119,nine Tubes in Steam Generator 2A Plugged Based on Eddy Current Testing Results.Cause Not Stated
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| 05000348/LER-1985-002-01, :on 850313,reactor Tripped.Caused by lo-lo Water Levels in Steam Generators 1B & 1C Due to Spurious Actuation of Limit Switch on Msiv.Switch Replaced.Msiv Turbine/Reactor Trip Functions Verified |
- on 850313,reactor Tripped.Caused by lo-lo Water Levels in Steam Generators 1B & 1C Due to Spurious Actuation of Limit Switch on Msiv.Switch Replaced.Msiv Turbine/Reactor Trip Functions Verified
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| 05000348/LER-1985-003-01, :on 850413,ESF Equipment Actuated Inadvertently While Testing.Caused by Electrician Shorting Circuit W/Tool. Tools for Procedure Will Be Properly Insulated to Prevent Short Circuits |
- on 850413,ESF Equipment Actuated Inadvertently While Testing.Caused by Electrician Shorting Circuit W/Tool. Tools for Procedure Will Be Properly Insulated to Prevent Short Circuits
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| 05000348/LER-1985-004-01, :on 850415,both Doors of Containment Auxiliary Air Lock Discovered Open.Caused by Worker Improperly Exiting Containment Through Airlock.Caution Tag Placed on Interior Door of Air Lock to Prevent Recurrence |
- on 850415,both Doors of Containment Auxiliary Air Lock Discovered Open.Caused by Worker Improperly Exiting Containment Through Airlock.Caution Tag Placed on Interior Door of Air Lock to Prevent Recurrence
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| 05000364/LER-1985-004, :on 850126,required Continuous Fire Watches Terminated Inproperly.Caused by Personnel Error.Foreman Counseled Re Establishment & Termination of Continuous Fire Watches |
- on 850126,required Continuous Fire Watches Terminated Inproperly.Caused by Personnel Error.Foreman Counseled Re Establishment & Termination of Continuous Fire Watches
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| 05000348/LER-1985-005-01, Forwards Results of Testing/Insp of 11 Tendon Anchor Heads, Based on Commitment in 850812 LER 85-005-01 to Conduct Addl Tests & Insps on Tendon Anchor Heads Which Failed Due to Hydrogen Stress Cracking.Anchor Heads Acceptabl | Forwards Results of Testing/Insp of 11 Tendon Anchor Heads, Based on Commitment in 850812 LER 85-005-01 to Conduct Addl Tests & Insps on Tendon Anchor Heads Which Failed Due to Hydrogen Stress Cracking.Anchor Heads Acceptable | |
| 05000364/LER-1985-005, :on 850127,prior to Integrated Leak Rate Testing of Containment,Grease Cover for Shop End of Containment Vertical Tendon V17 Found Deformed.Caused by Broken Field Anchor.Insp Program Initiated |
- on 850127,prior to Integrated Leak Rate Testing of Containment,Grease Cover for Shop End of Containment Vertical Tendon V17 Found Deformed.Caused by Broken Field Anchor.Insp Program Initiated
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| 05000364/LER-1985-006, :on 850201,Train B wide-range Containment Sump Level Recorder Had Ink Cartridge Installed for Only Blue Pen,Making Recorder Inoperable.Caused by Personnel Error. Personnel Counseled |
- on 850201,Train B wide-range Containment Sump Level Recorder Had Ink Cartridge Installed for Only Blue Pen,Making Recorder Inoperable.Caused by Personnel Error. Personnel Counseled
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| 05000348/LER-1985-006-01, :on 850423,tube in Steam Generator 1c,plugged During Refueling Outage,Exceeded Pluggable Limit.Cause Not Stated.Results of Steam Generator Tube Inservice Insp Will Be Reported |
- on 850423,tube in Steam Generator 1c,plugged During Refueling Outage,Exceeded Pluggable Limit.Cause Not Stated.Results of Steam Generator Tube Inservice Insp Will Be Reported
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| 05000348/LER-1985-007-01, :on 850411,Fire Door 401 Declared Inoperable & Could Not Be Repaired within 7 Days.Caused by Loose auto- Closure Mechanism & Loose Astragal.Fire Watch Established. New Door Assembly Ordered |
- on 850411,Fire Door 401 Declared Inoperable & Could Not Be Repaired within 7 Days.Caused by Loose auto- Closure Mechanism & Loose Astragal.Fire Watch Established. New Door Assembly Ordered
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| 05000364/LER-1985-007, :on 850301,while Reviewing Limiting Condition for Operation Forms During Shift Turnover,Fire Watch Requirements for Inoperable Fire Barrier Incorrectly Determined.Caused by Personnel Error |
- on 850301,while Reviewing Limiting Condition for Operation Forms During Shift Turnover,Fire Watch Requirements for Inoperable Fire Barrier Incorrectly Determined.Caused by Personnel Error
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| 05000364/LER-1985-008, :on 850328,reactor Trip Occurred Due to lo-lo Level in Steam Generator 2A.Caused by Personnel Error. Technician Counseled |
- on 850328,reactor Trip Occurred Due to lo-lo Level in Steam Generator 2A.Caused by Personnel Error. Technician Counseled
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| 05000348/LER-1985-008-01, :on 850506,suction Valves a & B Closed When RHR & Overpressure Mitigation Sys Made Inoperable by Common Cause.Caused by Procedural Inadequacy & Personnel Error. Procedure Revised |
- on 850506,suction Valves a & B Closed When RHR & Overpressure Mitigation Sys Made Inoperable by Common Cause.Caused by Procedural Inadequacy & Personnel Error. Procedure Revised
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| 05000364/LER-1985-009, :on 850330,reactor Tripped Due to lo-lo Level in Steam Generator 2A.Caused by leak-by of Isolation Valve to Condenser Vacuum Pressure Transmitter PT502,due to Loss of Steam Generator 2B Feed Pump.Valve Replaced |
- on 850330,reactor Tripped Due to lo-lo Level in Steam Generator 2A.Caused by leak-by of Isolation Valve to Condenser Vacuum Pressure Transmitter PT502,due to Loss of Steam Generator 2B Feed Pump.Valve Replaced
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| 05000348/LER-1985-009-01, :on 850517,reactor Protection Sys Actuation Occurred When lo-lo Water Level Signal in Steam Generator 1B Indicated.Caused by Personnel Error Due to Inadequate Instructions.Personnel Counseled |
- on 850517,reactor Protection Sys Actuation Occurred When lo-lo Water Level Signal in Steam Generator 1B Indicated.Caused by Personnel Error Due to Inadequate Instructions.Personnel Counseled
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| 05000364/LER-1985-010-01, :on 850715,during Steady State Operation, Reactor Trip Occurred Due to High Negative Flux Rate.Caused by Voltage Surge Due to Lightning.Shortly After Trip, Generator Output Breaker Opened Prematurely |
- on 850715,during Steady State Operation, Reactor Trip Occurred Due to High Negative Flux Rate.Caused by Voltage Surge Due to Lightning.Shortly After Trip, Generator Output Breaker Opened Prematurely
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| 05000348/LER-1985-010, :on 850608,reactor Trip Occurred Due to Underfrequency on Reactor Coolant Pump Buses.Caused by Personnel Error & Procedural Inadequacy.Personnel Counseled & Procedures Revised |
- on 850608,reactor Trip Occurred Due to Underfrequency on Reactor Coolant Pump Buses.Caused by Personnel Error & Procedural Inadequacy.Personnel Counseled & Procedures Revised
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| 05000364/LER-1985-011-01, :on 850717,reactor Trip Occurred Due to Low Steam Generator Level.Caused by Apparent Failure of Feedwater Regulating Valve a to Respond in Manual Control. Valve Exercised & Checked Thoroughly |
- on 850717,reactor Trip Occurred Due to Low Steam Generator Level.Caused by Apparent Failure of Feedwater Regulating Valve a to Respond in Manual Control. Valve Exercised & Checked Thoroughly
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| 05000348/LER-1985-011, :on 850620,maint Work Inadvertently Performed on Train B Pressurization Heater Control Circuit Instead of Train A.Caused by Unspecified Maint Work Request & Personnel Error.Personnel Counseled |
- on 850620,maint Work Inadvertently Performed on Train B Pressurization Heater Control Circuit Instead of Train A.Caused by Unspecified Maint Work Request & Personnel Error.Personnel Counseled
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| 05000364/LER-1985-012-01, :on 850802,reactor Trip Occurred.Caused by Failure of Inverter 2B While Overtemp delta-T in Tripped Condition.Inverter Repaired |
- on 850802,reactor Trip Occurred.Caused by Failure of Inverter 2B While Overtemp delta-T in Tripped Condition.Inverter Repaired
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| 05000348/LER-1985-012, :on 850623,reactor Trip Occurred Due to High Negative Flux Rate.Caused by Shutdown Bank & Control Rods E-11 & L-11 Dropping Into Core Due to Electrical Short.Fuses Replaced & Cables Reterminated.Module Ordered |
- on 850623,reactor Trip Occurred Due to High Negative Flux Rate.Caused by Shutdown Bank & Control Rods E-11 & L-11 Dropping Into Core Due to Electrical Short.Fuses Replaced & Cables Reterminated.Module Ordered
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| 05000364/LER-1985-013-01, :on 851113,discovered That Fire Watch Requirements Determined Incorrectly When Fire Detector on Both Sides of Inoperable Fire Barrier Made Inoperable.Caused by Personnel Error |
- on 851113,discovered That Fire Watch Requirements Determined Incorrectly When Fire Detector on Both Sides of Inoperable Fire Barrier Made Inoperable.Caused by Personnel Error
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| 05000348/LER-1985-013, :on 850717,during Steady State Operation at 100% Power,Reactor Trip Occurred Due to lo-lo Water Level in Steam Generator 1B.Caused by Spurious Indication of Excessive Thrust Bearing Wear |
- on 850717,during Steady State Operation at 100% Power,Reactor Trip Occurred Due to lo-lo Water Level in Steam Generator 1B.Caused by Spurious Indication of Excessive Thrust Bearing Wear
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| 05000348/LER-1985-014, :on 850828,ESF Equipment Actuation Occurred When Diesel Generator 2C Started Automatically.Caused by Technician Accidentally Bumping Manual Operator of Emergency Start Relay.Technician Counseled |
- on 850828,ESF Equipment Actuation Occurred When Diesel Generator 2C Started Automatically.Caused by Technician Accidentally Bumping Manual Operator of Emergency Start Relay.Technician Counseled
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| 05000364/LER-1985-014-01, :on 851121,new Fuel Assembly T-15 Damaged During Removal of Fuel Assembly from Shipping Container. Caused by Personnel Error.Personnel Counseled & Instructions Added to Fuel Handling Procedure |
- on 851121,new Fuel Assembly T-15 Damaged During Removal of Fuel Assembly from Shipping Container. Caused by Personnel Error.Personnel Counseled & Instructions Added to Fuel Handling Procedure
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| 05000364/LER-1985-015-01, :on 851212,positive & Negative Rate Trips on Power Range Nuclear Instrumentation Channel N-43 Discovered Improperly Calibr on 851210.On 851211,both Rate Trip Circuitry Channels Inoperable |
- on 851212,positive & Negative Rate Trips on Power Range Nuclear Instrumentation Channel N-43 Discovered Improperly Calibr on 851210.On 851211,both Rate Trip Circuitry Channels Inoperable
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| 05000348/LER-1985-015, :on 850925,determined That Positive & Negative Rate Trip Settings Existing Before 850619 Outside Tech Spec Tolerance.Caused by Incorrect Interpretation of Vendor Info. Procedure Revised |
- on 850925,determined That Positive & Negative Rate Trip Settings Existing Before 850619 Outside Tech Spec Tolerance.Caused by Incorrect Interpretation of Vendor Info. Procedure Revised
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| 05000348/LER-1985-016, :on 851002,plant Experienced Electrical Shorts Between Conductors in GE Series 100 Low Voltage Control Electrical Containment Penetration Modules.Caused Attributed to Separated Adjacent Connectors |
- on 851002,plant Experienced Electrical Shorts Between Conductors in GE Series 100 Low Voltage Control Electrical Containment Penetration Modules.Caused Attributed to Separated Adjacent Connectors
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| 05000348/LER-1985-017, :on 851007,fire Dampers Found Inoperable & Not Repaired within 7 Days.Caused by Personnel Failing to Ensure That Procedure Contains Requirements.Procedure Revised & Individual Counseled |
- on 851007,fire Dampers Found Inoperable & Not Repaired within 7 Days.Caused by Personnel Failing to Ensure That Procedure Contains Requirements.Procedure Revised & Individual Counseled
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| 05000348/LER-1985-018, :on 851009,air-operated Valve Failed to Stroke During Testing.Caused by Valve Actuator Cylinder Exhaust Breather Cap Being Painted Over During Installation.Breather Caps on Affected Unit 1 & 2 Valves Replaced |
- on 851009,air-operated Valve Failed to Stroke During Testing.Caused by Valve Actuator Cylinder Exhaust Breather Cap Being Painted Over During Installation.Breather Caps on Affected Unit 1 & 2 Valves Replaced
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| 05000348/LER-1985-019, :on 851023,fifth,sixth & Seventh Smoke Detectors in Fire Protection Sys 1A-32 Discovered Inoperable Since 850709.Caused by Personnel Error.Hourly Fire Watch Patrol Initiated |
- on 851023,fifth,sixth & Seventh Smoke Detectors in Fire Protection Sys 1A-32 Discovered Inoperable Since 850709.Caused by Personnel Error.Hourly Fire Watch Patrol Initiated
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