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 Issue dateTitleTopic
ML20057B32316 September 1993Special Rept 93-02:on 930831,discovered a Wind Speed Instrument Channel to Have Intermittent Fault at Low Speed Due to Unknown Cause.Replaced Wind Speed Processor Card
ML20056H14830 August 1993Special Rept 01-93:on 930804,Deluge Sys 19 Discovered Inoperable During Surveillance Testing.Caused by Failure of Deluge Valve Due to Normal Wear.Required Fire Watches Established & Maintained Until Deluge Sys Restored
ML20127B5856 January 1993Special Rept SR-08-92:from 921209-30,fire Door 288 in South Side Wall of Electrical Penetration Shield Wall Blocked Open to Support Maint Activities.Hourly Fire Patrol Established While Door Blocked OpenFire Barrier
ML20062G80115 November 1990Revised Special Rept:On 880916-891221,29 Dampers Could Not Be Confirmed to Meet All Design Specs & Were Inoperable. Problems Identified During Program to Identify Deviations from Mfg Installation Details for Fire Dampers
ML20058N08810 August 1990Special Rept:On 900710,review Revealed That 99 Fire Dampers Classified as Tech Spec Fire Barriers.Qa Audit in Fall of 1989 Identified Installation Requirements for Fire Dampers Failed to Permit Testing.Repairs to Be Completed by 900928Fire Barrier
ML20056B0332 August 1990Special Rept:On 900626,condenser Air Ejector Noble Gas Effluent Monitor PERM-6C Declared Inoperable.Caused by High Flow Rates of off-gases Present.Chiller Repaired & Monitor Placed in Svc
ML20058L2122 August 1990Special Rept:On 900720,discovered Circuit Breaker,Which Supplies Stated Fire Pump,In Open Position.Pump Would Have Been Unable to Automatically Start.Caused by Fire Water Sys Low Pressure While Filling Sprinkler.Personnel Counseled
ML20058N64910 July 1990Special Rept:On 900618,Deluge Sys 19 for Electrical Penetration Area Declared Inoperable Due to Electrical & Electronic Problems within Sys Actuation Panel.Fire Watch EstablishedFire Watch
ML20248B18227 September 1989Special Rept:On 890908,Emergency Diesel Generator Alternate Air Damper VX-103 Declared Inoperable.No Ul Label or Vendor Marking Found on Unit.Nonconformance Rept Initiated.Expects That Damper Will Be Operable by 891231Fire Barrier
ML20246D59828 August 1989Special Rept:On 890720,condensation Collected in Line Leading to Condenser Air Ejector Effluent Sampler & Flooded Flow Limiting Switch,Rendering Switch Inoperable for More than 7 Days.Switch Replaced & Sampler Restored to Svc
ML20245F59926 July 1989Reissue of Special Rept Re 3-h Fire Barrier Nonfunctional for Greater than 7 Days.Emergency Diesel Generator Ceiling Removed on 890707 for Const.Fireproofing Restored as of 890725.Compensatory Measures of Tech Spec 3.7.9 EstablishedFire Barrier
ML20245F60726 July 1989Reissues Special Rept Re Cable Spreading Room Suppression Sys Nonfunctional for Greater than 14 Days After Declared Inoperable on 890626 to Support Planned Mods to Sys.Fire Watch Established.Sys Expected to Be Operable by 890807Continuous fire watch
Fire Watch
ML20247L89126 June 1989Special Rept:On 890626,cable Spreading Room Suppression Sys Declared Inoperable.Compensatory Measures of Tech Spec 3.7.8.2 Established
ML20247L90126 June 1989Special Rept:On 890707,declared Fire Barrier in East & West Emergency Diesel Generator Ceiling Inoperable.Fireproofing Restored on 890725 & Compensatory Measures of Tech Spec 3.7.9 EstablishedFire Barrier
ML20247J12826 May 1989Special Rept:On 890426,penetration 174A,located on 45-ft Elevation of Turbine Bldg East Wall,Declared Inoperable & Remained Inoperable for More than 7 Days.Caused by Concrete Failing on One Side of Penetration.Detectors CheckedFire Barrier
ML20246E7595 May 1989Special Rept:On 890411,13 & 22,fire Barriers Nonfunctional for Greater than 7 Days.Barriers Degraded to Support Indicated Maint Work in Each Area.Local Smoke Detector Checked & Hourly Fire Patrol EstablishedFire Barrier
ML20248J7257 April 1989Special Rept:On 890325,train B Narrow Range North Containment Sump Level Instrument Declared Inoperable.On 890327,instrument Could Not Be Restored to Operable Status within 72 H.Caused by Air in-leakage Into Sealed Ref Line
ML20247F80027 March 1989Ro:On 890325,train B narrow-range North Containment Sump Level Instrument Failed Channel Check.Caused by Air in-leakage Into Sealed Ref Leg of Transmitter.Replacement Planned During 1989 Refueling Outage Scheduled on 890406
ML20206A0764 November 1988Special Rept Re Fire Barriers Remaining Inoperable for Greater than Seven Days in Listed Areas.Caused by Doors Being Inspected Once Every Six Months Leading to Large Number of Doors Needing Repair.Insp Switched to MonthlyFire Barrier
ML20205A28018 October 1988Special Rept:On 880912,Tech Spec 3.7.8.1 Violated.Caused by Diesel Fire Pump Being Inoperable for More than 7 Days for Svc Due to Incapability of Developing Flow Rate of 3,000 Gpm.Pump Expected to Be Restored to Svc by 881031
ML20154N28416 September 1988Special Rept:Fire Barriers in Listed Areas Declared Inoperable Greater than 7 Days.Checking Local Smoke Detectors & Establishing Hourly Fire Patrol Established as RequiredFire Barrier
ML20153B95622 August 1988Special Rept:On 880718,diesel Fire Pump Out of Svc for Routine Preventive Maint in Excess of 7 Days.Fire Truck Brought on Site & Available as Redundant Fire Suppression Source During Period.Doors Will Be Replaced by 881030Fire Barrier
Fire Protection Program
ML20154M67126 May 1988Special Rept:Listed Fire Barriers Declared Inoperable on Dates Indicated & Remained Inoperable for Greater than 7 Days.Barriers Degraded in Order to Support Indicated Maint Work in Each Area.Barriers Will Be Restored by 880630Fire Barrier
ML20153F8006 May 1988Special Rept:On 880416,20,21 & 24,fire Barriers in Listed Areas Declared Inoperable for Greater than 7 Days. Compensatory Measures of Tech Spec 3.7.9 Established as RequiredFire Barrier
ML20151Y12927 April 1988Special Rept:On 880321 & 0401,fire Barriers in Listed Areas Declared Inoperable & Remained Inoperable for More than 7 Days.Barriers Degraded to Support Maint Work.Compensatory Measures of Tech Spec 3.7.9 EstablishedFire Barrier
ML20149H98117 February 1988Special Rept:On 880128,listed Fire Barriers Determined to Be Nonfunctional to Provide 3-h Fire Barrier.Compensatory Measures of Tech Spec 3.7.9 Established as Required.Barriers Expected to Be Upgraded to Comply W/Current Stds by 880801Fire Barrier
ML20196A01129 January 1988Special Rept:On 880114,Channel a Narrow Range Containment Water Level Declared Inoperable.On 880115,narrow Range Level Instrument Not Restored to Operable Status.Cause Cannot Be Identified During Plant Operation.Repairs Planned
ML20148G45015 January 1988Special Rept:On 880114,Channel a Narrow Range Containment Water Level Instrument Declared Inoperable Due to Suspected Level Transmitter Problem.Alternate Method of Monitoring Containment Sump a Narrow Range Level Established
ML20149E9468 January 1988Special Rept:On 871223,3-h Fire Barrier Nonfunctional for Greater than 7 Days.Caused by Inadequate Const That Left Structural Separation Gap Between Fire Areas T8 & T1.Fire Patrol Established Until Repairs MadeFire Barrier
ML20149D8856 January 1988Special Rept:On 871207,listed Fire Penetrations Determined to Be Nonfunctional for Greater than 7 Days.Caused by Normal Aging of Sealing Matl & Inadequate Restoration of Seals. Penetrations RepairedFire Barrier
ML20234D38430 December 1987Special Rept:On 871229,Channel a of Reactor Vessel Level Instrumentation Sys (RVLIS) Declared Inoperable.Caused by Hydraulic Isolator Failure.Adjustment Made.Failed Power Supply in RVLIS Channel B Replaced & Channel Made OperableReactor Vessel Water Level
ML20236T22024 November 1987Special Rept:On 871112,south Fire Main Loop Removed from Svc to Repair Leak in Sys.Backup Fire Suppression Water Sys Established in Accordance W/Limiting Condition for Operation 3.7.8.1.Sys Returned to Operable Status on 871112
ML20236R57318 November 1987Special Rept,Rev 1:updates 871027 Rept Re Violation of Tech Specs.Caused by Inoperability of Smoke Detectors for More than 14 Days Due Undetermined Operability Due to Temps Below 32 F.Replacement Expected to Be Completed by Feb 1988
ML20236Q88113 November 1987Special Rept:On 871112,south Fire Main Loop Removed from Svc to Repair Leak in Sys.Backup Fire Suppression Water Sys Established
ML20236F89523 October 1987Special Rept:Smoke Detectors for Electrical Penetration Area Found to Be Inoperable.Hourly Fire Patrol Will Be Established During 871030-880401.Detector Replacement Expected to Be Completed by Feb 1988
ML20236C59323 October 1987Special Rept:On 871010,both Channels of RCS Subcooling Margin Monitor Declared Inoperable.Caused by Failed High RCS Loop Resistance Temp Detector Input to Subcooling Margin Monitor.Periodic Engineering Test 7-5 Performed
ML20236C80521 October 1987Special Rept:On 871005,two Fire Barriers for Emergency Diesel Generator Exhaust Stack Penetrations Found to Be Nonfunctional.Tech Spec 3.7.9 Compensatory Measures Fulfilled & Smoke Detector Operability VerifiedFire Barrier
ML20235X42712 October 1987Special Rept:On 871010,both Channels of RCS Subcooling Margin Monitor Declared Inoperable.Caused by Suspected Computer Software Calculation Problem.Alternate Monitoring Procedure Established.Followup Rept Expected in 14 Days
ML20235K08428 September 1987Special Rept:On 870904,Door 41 Determined to Be Nonfunctional for Greater than 7 Days.Caused by Metal Panel Welded to One Side of Door,Deviating from Ul Listing.Repair Estimated to Be Completed on 880103Fire Barrier
ML20234C81415 September 1987Special Rept:On 870901,PORV PCV 456 Declared Inoperable Due to Excessive Leakage.Cause Undetermined.Valve Will Be Inspected When Facility Conditions Allow
ML20237J53212 August 1987Special Rept:On 870729 & 30,Doors 64 & 45,respectively, Determined Nonfunctional for Greater than 7 Days.Cause Unknown.Compensatory Measures Described in Tech Spec 3.7.9 Fulfilled on 870729 for Door 64 & on 870730 for Door 45Fire Barrier
ML20235A2941 July 1987Special Rept:On 870611,fire Detectors U127 & U128 Found Inoperable.Fire Watch Patrol Established to Inspect Zone. Estimated Completion Date for Repair & Return to Svc Is 870731Fire Watch
ML20235A2621 July 1987Special Rept:On 870611,during Routine Insp,Fire Barrier Penetration P 2696 on South Wall of Diesel Auxiliary Feed Pump Room Found Inoperable.Caused by Electrical Extension Cord Routed Through Penetration.Fire Patrol EstablishedFire Barrier
ML20216G53123 June 1987Special Rept:On 870602,determined That 3 H Fire Barrier Doors 52 & 53 Nonfunctional for Greater than 7 Days,Contrary to Limiting Condition for Operation 3.7.9.Caused by Improper Welding Condition.Doors Will Be Repaired by 871001Fire Barrier
ML20215G89117 June 1987Ro:On 870605,discovered Door 428 Inoperable for Greater than 7 Days,Exceeding Limiting Condition for Operation 3.7.9. Cause Unstated.Compensating Measures Fulfilled on 870605. Completion Date for Repair Is 870801
ML20209E41824 April 1987Special Rept:On 870408,Door 126,separating Electrical Penetration Fire Area E-1 & Turbine Bldg Fire Area T-1, Determined Nonfunctional for More than 7 Days.Caused by Deficient Latching Mechanism.Latch CorrectedFire Barrier
ML20207R35910 March 1987Special Rept:On 870220,west Wall of Turbine Bldg Electrical Switchgear Room Determined to Be Nonfunctional for Greater than 7 Days.Void in West Wall Discovered While Installing New Equipment.Date for Repair & Return to Svc Is 870501Fire Barrier
ML20210F4504 February 1987Special Rept:On 870120,3-hr Fire Barrier Discovered to Be Nonfunctional for Greater than 7 Days.Door 69 Mechanically Blocked Open to Prevent Personnel Injury Since 860510.Parts Ordered from Mfg.Estimated Date for Repair Is 870901Fire Barrier
ML20214P80913 November 1986Special Rept:On 861014,fire Barrier Between Control Bldg Switchgear Room Train B & Electrical Auxiliary Room Train a Rated for 1.5 H Only.On 861017,3 H Fire Barrier in Turbine Bldg Nonfunctional.Barriers Restored or UpgradedFire Barrier
ML20212P90725 August 1986Special Rept:On 860722,diesel-driven Fire Pump Removed from Svc for Preventative Maint.Replacement Parts Not Received in Time to Return Pump to Svc within 7 Days.Component Parts Replaced & Pump Tested & Returned to Svc on 860630
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