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Category:REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER)
MONTHYEARML20205N2951999-04-13013 April 1999
Special Rept:On 990314,fire Detection Sys Was Removed from Svc to Support Mod to Replace SRW Heat Exchangers in Unit 2 SRW Room During Unit 2 Refueling Outage.Contingency Measure 15.3.5.A.1 Will Continue Until Fire Detection Sys Restored
ML20206Q3221999-01-11011 January 1999
Special Rept:On 981226,wide Range Noble Gas Effluent RM Was Removed from Operable Status.Caused by Failure of mid-range Checksource to Properly Reseat.Completed Maint & post-maint Testing & RM Was Returned to Operable Status on 990104
ML20154Q7191998-10-21021 October 1998
Special Rept:On 980923,unit 1 Wrngm Was Removed from Operable Status.Caused by Failure of Process Flow Transducer.Completed Maint to Remove Process Flow Transducer Input to Wrngm Microprocessor & Completed Formal Evaluation
ML20153C2571998-09-18018 September 1998
Special Rept:On 980830,wide Range Noble Gas Monitor (Wrngm) Channel Was Removed from Operable Status.Caused by Need to Support Performance of Required 18-month Channel Calibr.Will Return Wrngm to Operable Status by 980925
ML20151T5281998-09-0101 September 1998
Special Rept:On 980819,declared Rv Water Level Monitor Channel a Inoperable.Caused by Failure of Three Heated Junction Thermocouples (Sensors) in Lower Five Sensors. Channel a & B Rv Water Level Probes Will Be Replaced
ML20249A9571998-06-15015 June 1998
Special Rept:On 980430,fire Detection Sys Was Removed from Svc to Support Mod to Purge Air Sys 27-foot Elevation & 5-foot Elevation East Piping Penetration Rooms.Installed Temporary Alteration & Returned Fire Detection Sys to Svc
ML20247K2641998-05-15015 May 1998
Special Rept:On 980405,Unit 1 Svc Water Room Fire Detection Instrumentation Was Inoperable for Greater than 14 Days. Caused by Support of Mod Sys.Will Restore Instrumentation to Operable Status After Mod Welding Work Is Completed
ML20247K2461998-05-15015 May 1998
Special Rept:On 980409,Unit 1 TB SW Room,Fire Barrier Penetrations (Doors 213 & 214) Had Been Inoperable for More than 7 Days.Doors Were Opened to Permit Movement of Matl in & Out of Room.Doors Will Be Open Until Mods Are Completed
ML20247K3281998-05-15015 May 1998
Special Rept:On 980405,fire Detection Instrumentation in Unit 1 East & West RCPs Motor Bays Were Inoperable for More than 14 Days.Bays Were Removed to Support Overhaul of RCP Motors.Will Restore Implementation Upon Repair Completion
ML20216G3951998-04-15015 April 1998
Special Rept:On 980320,declared Unit 2 Reactor Vessel Water Level Monitor Channel Inoperable.Caused by Failure of Three Heated Junction Thermocouples in Lower Five Sensors.Will Replace Channel B Reactor Vessel Water Level Probe
ML20216D2641998-04-0202 April 1998
Ro:On 980226,discovered Potential Condition That May Render NUHOMS-24P Dry Shielded Canister/Fuel Package Defective. Caused Misapplication of Llnl Rept UCID-21246, Dynamic Impact Effects of Sfas. Performed Operability Evaluation
ML20202C1761998-02-0505 February 1998
Special Rept:On 980101,CR Vestibule to Turbine Bldg Door 401 Failed to Automatically Close as Designed.Caused by Increased Vestibule Pressure.Util Made Adjustments to Doors Automatic Closure Mechanism
ML20212F4911997-10-30030 October 1997
Ro:On 970930,fire Detection Instrumentation Declared Inoperable Greater than 14 Days to Support Mod to Svc Water Hxs.Fire Detection Will Be Restored to Operable Status When Mod Completed
ML20217R3401997-08-28028 August 1997
Ro:On 970729,abnormal Degradation of Surveillance Was Detected.Scope of lift-off Testing & Visual Insps to 100% of Tendons to Determine Extent & Cause of Corrosion Has Been Expanded
ML20151J8951997-07-24024 July 1997
Special Rept:On 970628,Unit 2 WR Noble Gas Monitor Was Inoperable for Period in Excess of Seven Days.Caused by Failure of Low Range Channel High Voltage Power Supply. Replacement Power Supply Was Installed
ML20141H3341997-07-0101 July 1997
Special Rept:On 970606,Main Steam Header Radiation Monitors Were Declared Inoperable.Caused by Failure of Detectors to Respond to Checksource.Will Continue Addl Vendor Testing of Proposed Mod & Will Perform Testing of Modified Detectors
ML20141H5331997-05-15015 May 1997
Special Rept:On 970415,Unit 1 Wide Range Noble Gas Monitor Was Removed from Operable Status.Caused by Removal of Monitor from Svc to Complete Approved Mod
ML20141H0171997-05-15015 May 1997
Special Rept:On 970425,Unit 1 Containment High Range Radiation Monitors Removed from Operable Status.Caused by Removal of Monitors from Svc to Complete Approved Mod
ML20141D4051997-05-0808 May 1997
Special Rept:On 970327,fire Detection Sys Removed from Svc to Support Mod to Purge Air Sys in Unit 2 27-foot Elevation & 5-foot Elevation East Piping Penetration Rooms During Refueling Outage.Temporary Alteration Installed
ML20141D3731997-05-0808 May 1997
Special Rept:On 970331,fire Detection Instruments Main Exhaust Equipment Room Were Disabled Due to Welding Activities.Established Hourly Fire Watch Patrols in Affected Areas,Completed Welding & Returned Instruments to Service
ML20148A8091997-05-0101 May 1997
Special Rept:On 970421,portion of Fire Suppression Water Sys Was Isolated.Caused by Repairs Being Made to Section of Fire Main Piping.Fire Main Restored to Normal line-up
ML20141D3821997-04-28028 April 1997
Special Rept:On 970319,Fire Detection Sys for Units 1 & 2 Rendered Inoperable.Caused by Unit Shutdown for Refueling Outage.Restored Fire Detection Sys to Operable Status at Conclusion of Unit 2 Refueling Outage
ML20141G1851997-04-28028 April 1997
Special Rept:On 970317,fire Detection Instruments in Unit 2 Containment 22A RCP Motor Bay Disabled Via Temporary Alteration.Heat Detection Circuits Were Not Restored within 14 Days Required by Ts.Fire Detection Will Be Tested
ML20138E8211997-04-23023 April 1997
Special Rept:On 970316,fire Barrier Penetrations Were Inoperable for More than 7 Days Due to Placement of Pal in Open Position.Pal Will Be Closed & Interlocks re-enabled Prior to Unit 2 Startup
ML20135F3381997-03-0505 March 1997
Special Rept:On 970208,removed Main Steam Header Radiation Monitors from Operable Status to Allow Installation of New Main Steam Header Radiation Monitors Per Approved Mod.Will Return Monitors to Operable Status 970307
ML20135F3441997-03-0505 March 1997
Special Rept:On 970122,declared Halon Fire Suppression Sys Inoperable.Caused by Failure of Damper to Stroke Fully Closed.Removed,Overhauled & Reinstalled Damper 0-DAMP-5443 W/Replacement Bushings
ML20134F8411997-02-0303 February 1997
Special Rept:On 970110,declared Main Steam Header Radiation Monitor Inoperable.Caused by Intermittent Electrical Contact in Cable & Degrade Performance of Ratemeter.Installed Ratemeter During Week of 970210
ML20133M2221997-01-17017 January 1997
Special Rept:On 961220,declared Main Steam Header Radiation Monitor Inoperable.Caused by Intermittent Electrical Contact of Ratemeter Connector for Signal Cable from Detector. Replaced Cable Connector
ML20117J9901996-09-0404 September 1996
Special Rept:On 960807,Diesel Fire Pump Disabled.Caused by Routine Maint on Pump.Completed Work on Pump,Tested & Restored Pump to Operable Status
ML20117F6391996-05-14014 May 1996
Special Rept:On 960404,fire Hose Stations Inside Unit 1 Containment Disabled to Permit Work Activities.Temporary Fire Hose in Place Until Fire Main Restored to Operable Status on 960507
ML20108D7941996-05-0303 May 1996
Special Rept:On 960326,fire Detection Instrumentation in Unit 1 SW Water Pump Room Was Disabled Via Temporary Alteration to Permit Work Activities.Hourly Fire Watch Patrol Was Initiated to Inspect Affected Fire Zone
ML20108D7861996-05-0303 May 1996
Special Rept:On 960330,RCP Motor Bay Was Disabled Due to Temporary Alteration to Support Removal of 12B RCP Motor During Unit 1 Refueling Outage.Containment Air Being Monitored Once Per H at Location Listed in SR 4.6.1.5
ML20095A3741995-12-0101 December 1995
Special Rept:On 951104,Unit 2 Main Steam Header Radiation Monitor Removed from Svc.Caused by Degraded Performance of Circuit Cards in Control Room Ratemeter.Main Steam Header Radiation Monitor Returned to Operable Status
ML20092B7211995-09-0707 September 1995
Special Rept:On 950801,diesel Fire Pump (DFP) 12 for Fire Suppression Water Sys Disabled & on 950808,exceeded Seven Day Requirement to Restore Inoperable Equipment to Operable Status.Dfp Engine Rebuilt & DFP Declared Operable on 950901
ML20084R4441995-06-0202 June 1995
Special Rept:On 950403,hydrogen Analyzer Inoperable Due to Maint on EDG 21.Following Maint Hydrogen Analyzer Returned to Svc
ML20082G6891995-04-11011 April 1995
Special Rept:On 950320,fire Detection Instruments in Containment 21B RCP Motor Bay Inoperable for Greater than 14 Days to Support Unit 2 Refueling outage-related Work. Appropriate Compensatory Actions Taken
ML20082F4301995-04-0707 April 1995
Special Rept:On 950310,WR Noble Gas Effluent RM Failed Automatic Check Source.Monitor Has Repeatedly Failed mid- Range Check Sources,Causing Failed Automatic Check Source. Temporary Alteration Made to mid-range Channel
ML20064N9891994-03-25025 March 1994
Special Rept:On 940224,fire Detection Instrumentation Was Inoperable for More than 14 Days.Established Hourly Fire Watch to Inspect Fire Zone
ML20063K4591994-02-11011 February 1994
Special Rept:On 940110,fire Suppression Halon Sys Disabled Due to Work Activity in Area Involving Removal of Marinite Cable Tray Covers.Halon Sys Inoperable for More than 14 Days.Subj Sys Scheduled to Be Inoperable Until 940412
ML20063K4571994-02-11011 February 1994
Ro:On 940131,plant Intake Embayment Instrumentation Sample Pump Found to Be Not Working.Pump Out of Svc for Unknown Amount of Time But Less than 72 H.Sample Pump Immediately Replaced & Sample Flow Restored
ML20059D6341993-12-15015 December 1993
Special Rept:On 931215,discovered Wide Range Noble Gas Monitor Out of Svc for More than 7 Days.Caused by Malfunctioning mid-range Check Source Assembly.Monitor Returned to Svc on 931214
ML20116N4171992-11-13013 November 1992
Special Rept:On 921005,fire & Smoke & Flame Detection for Spent Fuel Area Disabled to Permit Welding,Cutting & Grinding Operations to Install New Spent Fuel Crane.Hourly & Continuous Fire Watch Established Until Equipment Restored
ML20115J0051992-10-22022 October 1992
Special Rept:On 920921,Channel a Rvlms Removed from Svc & Channel a Failed Open Thermocouple Test.On 921001,improper Ground Isolation Discovered,Resulting in Incorrect Voltages to Circuit Board.Channel a Returned to Svc on 921002
ML20115C5841992-10-0909 October 1992
Special Rept:On 920829,Tech Spec App B Re Fish Killed.Caused by Low Dissolved Oxygen Levels in Embayment Area.Licensees Anticipate That Mod Will Reduce Mortality Rates of Fish, Especially Large Ones
ML20099K2841992-08-21021 August 1992
Special Rept:On 920720,fire Dampers for Unit 1 Auxiliary Bldg Exhaust,Unit 1 Containment Purge Exhaust,Unit 2 Auxiliary Bldg Exhaust & Unit 2 Containment Purge Exhaust Found Inoperable.Hourly Fire Watch Established
ML20101U4631992-07-20020 July 1992
Special Rept:On 920624,fire Dampers for Switchgear Room HVAC Found Inoperable.Hourly Fire Watch Established.Root Cause & Corrective Actions for Event Will Be Discussed in Upcoming LER
ML20101F4211992-06-22022 June 1992
Special Rept:On 920518,fire Dampers for Switchgear Room HVAC Sys Found Inoperable During Engineering Test Procedure 91-77 Re Fire Damper Testing.Cause Unknown.Maint Work in Progress to Correct Fire Dampers
ML20101F5181992-06-22022 June 1992
Special Rept:On 920609,detectors Were Declared Inoperable for More than 14 Days.Hourly Fire Watch Patrol Was Established & Detection Sys Was Restored to Operable Status
ML20101G7961992-06-22022 June 1992
Special Rept:On 920521,fire Detection for Unit 1 & 2 Intake Structure Disabled.Caused by Continous Alarm at Fire Alarm Panel in Control Room & Single Point Annunciator on Control Boards.Response to Plant Fire Alarms Delayed
ML20101B7551992-05-28028 May 1992
Special Rept:On 920501,Unit 1 Svc Water Room Was Maintained Open to Support Work Activities During Unit 1 Refueling Outage.Fire Door Will Be Closed Prior to Startup Scheduled for mid-Jul 1992
1999-04-13
[Table view]
Category:TEXT-SAFETY REPORT
MONTHYEARML20217G6971999-09-30030 September 1999
Monthly Operating Repts for Sept 1999 for Calvert Cliffs Npp,Units 1 & 2.With
ML20216J8731999-09-10010 September 1999
Rev 52 to QA Policy for Calvert Cliffs Nuclear Power Plant
ML20212A4441999-08-31031 August 1999
Monthly Operating Repts for Aug 1999 for Ccnpp,Units 1 & 2. with
ML17326A2011999-08-23023 August 1999
LER 99-004-00:on 990724,reactor Tripped Due to Main Transformer Bushing Flashover.Plant Was Brought to SS & Components Were Tested & Performed Satisfactorily.With 990823 Ltr
ML20210S6091999-07-31031 July 1999
Monthly Operating Repts for July 1999 for Ccnpp,Units 1 & 2. with
ML20210N6001999-07-27027 July 1999
ISI Summary Rept for Calvert Cliffs Unit 2. Page 2 of 3 in Encl 1 of Incoming Submittal Not Included
ML20210B7941999-07-15015 July 1999
SER Denying Licensee Request for Changes to Current Ts,Re Deletion of Tendon Surveillance Requirements for Calvert Cliffs
LD-99-039, Part 21 Rept Re Defect of Abb 1200A 4kV Vacuum Breakers. Initially Reported on 990625.Defect Results in Breaker Failing to Remain in Closed Position.Root Cause Evaluation & Corrective Action Plan Being Developed.Licensee Notified1999-06-30030 June 1999
Part 21 Rept Re Defect of Abb 1200A 4kV Vacuum Breakers. Initially Reported on 990625.Defect Results in Breaker Failing to Remain in Closed Position.Root Cause Evaluation & Corrective Action Plan Being Developed.Licensee Notified
ML20209F1721999-06-30030 June 1999
Monthly Operating Repts for June 1999 for Calvert Cliffs Npp.With
LD-99-035, Part 21 Rept Re Abb 1200A 4KV Vacuum Breakers Performing Trip Free Operation When Close Signal Received by Breaker. Defect Results in Breaker Failing to Remain in Closed Position.Root Cause & CAP Being Developed1999-06-25025 June 1999
Part 21 Rept Re Abb 1200A 4KV Vacuum Breakers Performing Trip Free Operation When Close Signal Received by Breaker. Defect Results in Breaker Failing to Remain in Closed Position.Root Cause & CAP Being Developed
ML20196C6981999-06-21021 June 1999
Safety Evaluation Concluding That Use of ASME Section XI Code Including Summer 1983 Addenda as Interim Code for Third 10-year Insp Interval at Calvert Cliffs Units 1 & 2 Until Review of 1998 Code Completed,Would Be Acceptable
ML20195K2811999-05-31031 May 1999
Monthly Operating Repts for May 1999 for Ccnpp,Units 1 & 2. with
ML20206R5871999-04-30030 April 1999
Monthly Operating Repts for Apr 1999 for Ccnpp,Units 1 & 2. with
ML20195B3891999-04-30030 April 1999
0 to CENPD-279, Annual Rept on Abb CE ECCS Performance Evaluation Models
ML20205N2951999-04-13013 April 1999
Special Rept:On 990314,fire Detection Sys Was Removed from Svc to Support Mod to Replace SRW Heat Exchangers in Unit 2 SRW Room During Unit 2 Refueling Outage.Contingency Measure 15.3.5.A.1 Will Continue Until Fire Detection Sys Restored
ML20210T5211999-04-0101 April 1999
Rev 0 to Ccnpp COLR for Unit 2,Cycle 13
ML20205P5441999-03-31031 March 1999
Monthly Operating Repts for Mar 1999 for Calvert Cliffs Nuclear Power Plant,Units 1 & 2.With
ML20204H6471999-03-21021 March 1999
SER Re License Renewal of Calvert Cliffs Nuclear Power Plant,Units 1 & 2
ML20207M8321999-02-28028 February 1999
Monthly Operating Repts for Feb 1999 for Calvert Cliffs Nuclear Power Plant.With
ML20203D4311999-02-0505 February 1999
Safety Evaluation Accepting Procedure Established for long-term Corrective Action Plan Related to Containment Vertical Tendons
ML20199G4671999-01-20020 January 1999
SER Accepting USI A-46 Implementation for Plant
ML20206Q3221999-01-11011 January 1999
Special Rept:On 981226,wide Range Noble Gas Effluent RM Was Removed from Operable Status.Caused by Failure of mid-range Checksource to Properly Reseat.Completed Maint & post-maint Testing & RM Was Returned to Operable Status on 990104
ML20207L0451999-01-0808 January 1999
Cost-Benefit Risk Analyses:Radwaste Sys for Light Water Reactors
ML20199F4781999-01-0808 January 1999
Safety Evaluation Concluding That Bg&E Performed Appropriate Evaluations of Operational Configurations of safety-related power-operated Gate Valves to Identify Valves Susceptible to Pressure Locking.Concludes GL 95-07 Actions Were Addressed
ML20198S7591999-01-0707 January 1999
SER Accepting Quality Assurance Program Description Change for Calvert Cliffs Nuclear Power Plant,Units 1 & 2
ML20207M2281998-12-31031 December 1998
1998 Annual Rept for Bg&E. with
ML20199E2931998-12-31031 December 1998
Monthly Operating Repts for Dec 1998 for Calvert Cliffs Npp. with
ML20206R9911998-12-0808 December 1998
Rept of Changes,Tests & Experiments (10CFR50.59(b)(2)). with
ML20198B2631998-11-30030 November 1998
Monthly Operating Repts for Nov 1998 for Calvert Cliffs Nuclear Power Plant,Units 1 & 2.With
ML20195H1001998-11-16016 November 1998
Safety Evaluation of First Containment Insp Interval Iwe/Iwl Program Alternative
ML20196E2211998-10-31031 October 1998
Non-proprietary Rev 03-NP to CEN-633-NP, SG Tube Repair for Combustion Engineering Designed Plant with 3/4 - .048 Wall Inconel 600 Tubes Using Leak Limiting Alloy 800 Sleeves
ML20195E5281998-10-31031 October 1998
Monthly Operating Repts for Oct 1998 for Calvert Cliffs Nuclear Power Station,Units 1 & 2.With
ML20154Q7191998-10-21021 October 1998
Special Rept:On 980923,unit 1 Wrngm Was Removed from Operable Status.Caused by Failure of Process Flow Transducer.Completed Maint to Remove Process Flow Transducer Input to Wrngm Microprocessor & Completed Formal Evaluation
ML20154G3931998-10-0505 October 1998
Safety Evaluation Concluding That Flaw Tolerance Evaluation for Assumed Flaw in Inboard Instrument Weld of Pressurizer Meets Rules of ASME Code
ML20154M5841998-09-30030 September 1998
Monthly Operating Repts for Sept 1998 for Calvert Cliffs Nuclear Plant,Units 1 & 2.With
ML20153C2571998-09-18018 September 1998
Special Rept:On 980830,wide Range Noble Gas Monitor (Wrngm) Channel Was Removed from Operable Status.Caused by Need to Support Performance of Required 18-month Channel Calibr.Will Return Wrngm to Operable Status by 980925
ML20153C1091998-09-18018 September 1998
Part 21 Rept Re Defective Capacity Control Valves.Trentec Personnel Have Been in Contact with Bg&E Personnel Re Condition & Have Requested Potentially Defective Valves
ML20151U5441998-09-0404 September 1998
Bg&E ISI Summary Rept for Calvert Cliffs
ML20151T5281998-09-0101 September 1998
Special Rept:On 980819,declared Rv Water Level Monitor Channel a Inoperable.Caused by Failure of Three Heated Junction Thermocouples (Sensors) in Lower Five Sensors. Channel a & B Rv Water Level Probes Will Be Replaced
ML20151Y1191998-08-31031 August 1998
Monthly Operating Repts for Aug 1998 for Calvert Cliffs Nuclear Power Plant Units 1 & 2.With
ML20237D4981998-08-19019 August 1998
Safety Evaluation Accepting Licensee Request for Extension of Second ten-year Inservice Insp Interval
ML18066A2771998-08-13013 August 1998
Part 21 Rept Re Deficiency in CE Current Screening Methodology for Determining Limiting Fuel Assembly for Detailed PWR thermal-hydraulic Sa.Evaluations Were Performed for Affected Plants to Determine Effect of Deficiency
ML20237B9371998-07-31031 July 1998
Monthly Operating Repts for July 1998 for Calvert Cliffs Nuclear Power Plant
ML20237D5941998-07-22022 July 1998
Rev 2 to Ccnpp COLR for Unit 2,Cycle 12
ML20236L7521998-07-0606 July 1998
Safety Evaluation Granting Bg&E 980527 Request for Relief from Requirement of Section IWA-5250 of ASME Code for Calvert Cliffs Unit 2.Alternatives Provide Reasonable Assurance of Operational Readiness
ML20236F7791998-06-30030 June 1998
Safety Evaluation Authorizing Request for Temporary Relief from Requirement of Subsection IWA-5250 of ASME Code,Section XI for Plant,Unit 1
ML20236R0881998-06-30030 June 1998
Monthly Operating Repts for June 1998 for Calvert Cliffs Nuclear Power Plant,Units 1 & 2
ML20236X3101998-06-19019 June 1998
Rev 1 to Calvert Cliffs Nuclear Power Plant COLR for Unit 2,Cycle 12
ML20249A9571998-06-15015 June 1998
Special Rept:On 980430,fire Detection Sys Was Removed from Svc to Support Mod to Purge Air Sys 27-foot Elevation & 5-foot Elevation East Piping Penetration Rooms.Installed Temporary Alteration & Returned Fire Detection Sys to Svc
ML20249A7711998-05-31031 May 1998
Monthly Operating Repts for May 1998 for Ccnpp,Units 1 & 2
1999-09-30
[Table view] |
Text
. - _-_. - -____
4
' B A L' IMORE "
. GT S AND
' E LECTRIC N /
CHARLES CENTER
R L DENToN Ot htHAt MAN AGCR
" "'""" August 21,1992 U. S. Nuclear Regulatory Cwmmission Washington, DC 20555 /
/
ATTENTION: 130cument Cor. trol Desk l
SUBJECT:
Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318
[' Calvert Cliffs Nuclear Power Plant Penetration Fire Barrier Special Report
/ Technical Specification 3.7.11 ACTION Statement a s
/
Gentlemen:
~
Per the requftrements of Technical Specification 3.7.12, ACTION Statement a, we hereby submit the attached Spdcial Report concerning inoperable fire barrier penetrations, specifically Fire Dampers in
- the Units 1 dnd 2 Auxiliary Building Exhaust, Containment Purge Exhaust, and Units 1 and 2 Control wd Cable Spreading Room Supply and Exhaust systems.
Should you h' ave any further questions regarding this matter, we will be pleased to discuss them with yo u. !
)
i Very truly yours, -
/
RED / REP / DEB;bjd Attachm<mt ec: D. A. Brune, Esquire J. E. Silberg, Esquire R. A. Capra, NRC D. G, Mcdonald, Jr., NRC T, T. Martin, NRC P. R. Wilson, NRC .' [r R. I. McLean, DNR 0 0' Ej[)%
J. H. Walter, PsC 9
.0 0
920B260018 920821 q\
1 \
PDR ADOCK 05000317 S
PDR
/
, NITA/CIIMENT (1)
, PENE FR_ATION FI' IIARRIER SPECIAl, REPOlrF
l IIACKGROUND On July 20, 1992, fire damper [IFD524F1, IFD524F2, 2FD526F2, and 2FD526F3 were found INOPERABLE while performi hg testing in accordance with criteria set forth in CCI-l17 Temporary ModiGeation Control Attachrnent TS-1, Troubleshooting Control Form. Fire dampers 0FD512F1 and 0FD512F2 were subseq~ ently declared INOPERABLE as they were installed in the same manner as the ebove refere iced dampers but were inaccessible for testing purposes. The above referenced dampers were a concern because similarly installed dampers, tested as pait of Engineering Test Procedule ETP) 91-77, failed to close completely due to incorrect installation.
The purpose of ETP 91.-h w(as to perform an inspection and functional test or each assembly by visual insp.,ection and actual closure testing. Fire dampers IFD524F1, IFD524F2, 2FD526F2, and 2FD526F3 failed to close completely. As a result, all were declared inoperable.
As required by Tech nical Specification 3.7.12, ACTION Statement a, a Special Report must be issued to the Comr nission pursuant to Technical SpeciGcation 6.9.2 if the fire dampers are not restored to an opevable status within seven days.
I EFFECT ON UNIT OPERATION l On July 20, l'392 with Unit I at Mode 5 and the Unit 2 at Mode 1. lire dampers IFD524F1 (Unit 1 Auxiliary Byilding Exhaust), IFD524F2 (Unit 1 Containment Purge Exhaust),2FD526F2 (Unit 2 Auxiliary IVuilding Exhaust) and 2FD526F3 (Unit 2 Containment Purge Exhaust) were found INOPERADLE. Additionally, fire dampers OFD521F1 (Control Room Cable Spreading Room Supply) an!! 0FD512F2 (Contul Room Cable Spreading Room Exhaust) were also declared INOPERAItLE 3 as their OPERABILITY could not be veiified due to inaccessibility. These fire dampers arp addressed by Technical SpeciGeation 3.7.12. In accordance with Technical Specificatiort 3.7.12, ACTION Statement a, an hourly fire watch patrol was established and OPERABIL,lITY of fire detection instruments on one side of the affected barrier was veriGed.
l 11ANS AN D SCIIEDUI.ES I
A root cause analysis was conducted and has identified the causes of fire damper INOPERABILITY.
The root cause and corrective actions for this event were discussed in LER 92-004. Engineering and Maintenance work is in progress to correct the problems with these fire dampers. These dampers will remain INOPER ABLE and approntiate actions will continue in accordance with Technical SpeciGcation requiremcms until the fire dampers are restored to an OPERABLE status.
l
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