ML20059D812
| ML20059D812 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 09/05/1990 |
| From: | Donohew J Office of Nuclear Reactor Regulation |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9009070194 | |
| Download: ML20059D812 (15) | |
Text
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UNITED STATES -
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g, NUCLEAR REGULATORY COMMISSION l
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WASHINGT ON, D. C. 20655 k*****,/
September 5, 1990 Docket Nos. 50-327 and 50-328 LICENSEE: Tennessee Valley Authority (TVA)
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FACILITY: Sequoyah Nuclear Plant, Units 1 and 2
SUBJECT:
SUMMARY
OF AUGUST 17, 1990 MEETING ON SCHEDULES OF CERTAIN PODIFICATIONS COMMITTED TO BE' COMPLETED IN THE UNIT 2 CYCLE 4 REFUELING OUTAGE On Friday, August 13, 1990, a meeting was held'at the headquarters of the Division of Reactor Projects - Region I/II, Office of Nuclear Reactor Regulation (NRR), NRC, in Rockville, Maryland. The meeting was between the NRC staff and TVA's representatives.
It was held at the request of TVA to-discuss the schedule to implement its commitment to complete the modifications needed in the Cable Tray Support Program by the restart of Unit 2 from the-Unit 2 Cycle 4 refueling outage. Enclosure 1 is the list of individuals who attended the meeting.- Enclosure 2 is the handout presented by TVA in the meeting. The following is a summary of the significant items discussed and the actions, if any, taken or proposed.
The Cable Tray Support Program is discussed in Section 2.5 of hdREG-1232, Volume 2.
This safety evaluation report was issued by the staff in its letter dated May 18, 1988 as part of its approval for Units 1 and 2 to restart in 1988 from their extended outages since 1985. TVA committed in its letter dated October 15, 1987 to have the safety-related cable trays meet (1) the interim 1
restart or acceptance criteria before the restart of the units and (2) the Sequoyah Final Safety Analysis Report (FSAR) criteria by the restart of Unit 2.
from the Unit 2 Cycle 4 refueling outage. This outage is currently scheduled to begin in September 1990 and end in November 1990.
TVA requested this meeting to discuss the possibility of deferring the work for Item 2 until after the restart of Unit 2 from this refueling outage. The work for. Item I was completed before the restart of the units in 1988.
The agenda is given on Page 1 of Enclosure 2.
TVA's presentation may be-broken down into the following areas: Overview (Page 2 of Enclosure 2),
History (Page 3), Current Status of Program (Pages 4 and 5), Scope of' Defer-ment from Commitment (Pape 6), Considerations' to Meet Current Unit 2 Cycle 4 Commitment (Pages 7 and 8), Safety Assessment of Deferment (Page 9), and Conclusions (Page10).
TVA stated that it has qualified 91% of the cable tray supurts in Units 1 and i
2 to the FSAR criteria. Therefore, only nine percent of tie total number of cabic tray supports are still under review. They expect approximately 1.3% of the supports will need modifications to meet the FSAR criteria. This would be approximately 60 modifications. TVA stated that none of these modifications would be inside the containments, control room building, or diesel generator 9009070194 900905 J{/k PDR ADOCK 050003:27 P
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2 building of the units. TVA cyplained that the engineering for the modifica-tions would be completed before the end of the Unit 2 Cycle 4 refueling outage. The rodifications would then be done after the outage and completed before February 28, 1991.
TVA provided a partial list of other work which is scheduled for the Unit 2 Cycle 4 refueling outage on Page 8.sf Enclosure 2.
It stated that completing the cable tray support nodifications in this outage is not necessary because the work can be done while the units are operating and the few supports that may need modifications are qualified to the restart criteria. TVA concluded that this work is an unnecessary resource and control impact on an outage that has a large number of modifications which must be completed without being a significant increase in safety if this work is completed in the outage. TVA ended its presentation with a request that the NRC staff consider its proposal to defer the cable tray support modifications until after the Unit 2 Cycle 4 refueling outage but not later than February 28, 1991.
The staff caucused to consider TVA's request. The staff stated that it would consider TVA's proposal to defer the cable tray support modifications from the Unit 2 Cycle 4 refueling outage. TVA stated that it would submit its request for this defement by August 20, 1990. This ended the meeting.
By letter dated August 20, 1990, TVA submitted its request to defer the cable tray support modifications until af ter the Unit 2 Cycle 4 refueling outage but not later than February 28, 1991. The engineering for the rodifications will be completed before the restart of Unit 2 from this outage.
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/h 1.Donohew,f enior Project Manager Jac Project Directorate 11 4 Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation
Enclosures:
1.
Attendance List 2.
TVA Handout cc w/ enclosures:
See next page OFC
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0FFICIAL RECORD COPY Document Name: 8/13 MTG.
SUMMARY
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j Mr. Marvin Runyon, Chairman Mr. Joseph Bynum, Acting Site Director Tennessee Valley Authority Sequoyah Nuclear Plant ET 12A 7A Tennessee Valley Authority 400 West Sumit Hill Drive P. O. Box 2000 Knoxville, Tennessee 3790?
Soddy Daisy, Tennessee 37379 Mr. Sdward G. Wallace Mr. Mark J. Burrynski Manager, Nuclear Licensing Site Licensing Manager and Regulatory Affairs Sequoyah Nuclear Plant i
Tennessee Valley Authority P. O. Box 2000 SN 157B Lookout Place Soddy Daisy, Tennessee 37379 Chattanooga, Tennessee 37402-2801 tir. John B. Waters, Director County Judge Tennessee Valley Authority Hamilton County Courthouse ET 12A 9A Chattanooga, Tennessee 37402 400 West Sumit Hi'l Drive Knoxville, Tennessee 37902 Regional Administrator, Region II U.S. Nuclear Regulatory Comissior Mr. W. F. Willis 101 Marietta Street, N.W.
Chief Operating Officer Atlanta, Georgia 30323 ET 12B 16:i 400 West Sumit Hill Drive Mr. Paul E. Harmon Knoxville, Tennessee 37902 Senior Resident Inspector Sequoyah Nuclear Plant Gener.a1 Counsel U.S. Nuclear Regulatory Comission Tennessee Valley Authority 2600 Igou Ferry Road r
400 West Sumit Hill Drive Soddy Daisy, Tennessee v' '9 ET 11B 33H Knoxville, Tennessee 37902 Mr. Michael H. Mobley, Director Division of Radiological Health Mr. Dwight Nunn T.E.R.R.A. Building, 6th Floor l
Vice President, Nuclear Engineering 150 9th Avenue North Tennessee Valley Authority Nashville, Tennessee 37219-5404 6N 38A Lookout Place 1101 Market Street Tennessee Valley Authority Chattanooga, Tennessee 37402-2801 Rockville Office 11921 Rockville Pike-Dr. Mark O. Medford Suite 402 Vice President and Nuclear Rockville, Maryland 20852 Technical Director Tennessee Valley Authority Mr. Oliver D. Kingsley, Jr.
6N 38A Lookout Place Senior Vice President, Nuclear Power Chattanooga, Tennessee 37402-280?
Tennessee Valley Authority 6N 38A Lookout Place 1101 Market Street-Chattanooga, Tennessee 37402-2801
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ENCLOSURE 1 ATTENDEES AT THE MEETING OF JllLY 23. 1990 Nane Affiliation F. Hebdon NRC G. Lainas NRC D. Torao NRC 1
J. Fair NRC T. Cheng NRC S. Black HRC P. Flarmon NRC M. Cooper TVA J. Bynum TVA P. Trudel TVA D. Lundy TVA T. Ippolito TVA Affiliation TVA - Tennessee Valley Authority NRC - Nuclear Regulatory Commission l
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L ENCLOSURE 2 IVA/NR0MEETIiG AUGUST 17,1990 UNII2 CYCL.E4REFUELINGOUIAGE C0)NIIMENT CHANGE AGENDA
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INIR0000 TION /0VERVIEW M.A. Cooper II CA31.E IRAY SUPPORIS P.G.Trudel III. OPEN DISCUSSION l
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c CABLETRAYSUPPORIS INTRODUCIION ISSUE: CA31ETRAYSUPPORIS COMMIIMENT: ACHIEVECOMPLIANCEWITHFSARREQUIREMENISBYRESIAR U2C4Rf0 1
PROPOSAL: DEFER C0WJIMEhT 00MPLEIION 10 POSI U204 R0 - FEBRUA l
BASIS: COMMIIMENTCOMPiti!0N3YSIARIUPFROMIBEU204Rf0COULD RESULT IN UNNECESSARY OUIAGE RESOURCE / WORK 00hTROL D1P WITHOUTASIGNIFICANIINCREASEINSAFEIY I
CABLETRAYSUPPORIS HISIORY
?3!RESIMI!?0SIRESIARIAPPR0ACH PRERESIART
-RESIARICRITERIAAPPROVEDBYNR0
-SUP?0RISEVALUAIED10RESIARTORIIERIA
- SUPP0RIS MODIFIED THAT DID NOT EEI RESTART ORIIERIA
-SUPP0RISACCEPTABLEFORRESIARIANDOPERAIION
?0SIRESTARI
-EVALUAIE10FSARREQUIREMENIS
- Me.atut3
- MODIFY SUPP0RIS NOI)263AR REQUIREMfRS
-600AIIACHED10SCV(EAUNII)
-3460INCONTROL, AUXILIARY,REACIOR,AEBANDD/GBUILDINGS l
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e CABLETRAYSUPP0RIS SIAIUS 100% QUALIFIED 10RESIARICRITERIAORFSARREQUIREMENIS 91% QUALIFIED 10LONGIERM(FSAR) CRITERIA
- N0 ADDIIIONAL M0DS FOR SUPP0RIS AIIACHED 10 SCV
-N0ADDITIONALM0DSFOR00NIAINMENT, CONTROL,ORD/GBUILDING SUPPORTS 9%LEERREVIEW10MEEILONGIERM(FSAR)CRIIERIA
- EXPECT APPR0XIMAIELY 60 A00ESSIBLE SUPPORI M0DS
-EXPECTAPPR0XIMAIELY1%0FI0TALSUPP0RIS10REQUIREM0DS
- 6 M0DS ARE ISSUED WIIH WORK P' NS IN PREPARAIION d
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QUAllifCAIl0NOfCABLETRAYSUPP0RIS10 LONG-IERM(FSAR) CRITERIA (AUGUST 14,1990)
SUPPORI SUPP0RIS SUPPORI POPULATION QUAllilED M0DIFICATIONS DIESELGENERATOR 195 195 0
BUllDING REACIORBUILDINGS 37 37 0
(INSIDECONTAINMENI)
SIEEL00hTAISMDT 600 600 0
1 VISSELLTII2 SIEELCONTAINMBT 600 600 0
VESSELL3II1 ALIllIARYBUILDING/
3176
- 2683
- 52 CONTROL 3UILDING ADDITIONALEQUIPMBT 52
- 43
- 9 BUILDING I0IAL 4660
- 4219
- 61 91% CURREhTLY QUALIFIED ESI,1.3%10REQUIREM0DIFICATIONS
- ESIIMATE3ASEDONCURREhTDESIGNSTATUS, i
CABLE TRAY SUPhdIS DEFERRAL SCOPE VS COMMIDDT SCOPE 91% QUALIFIED 10LONGIERMCRIIERIAASORIGINAllYSCHEDULED 50 DEFERRAL 0FENGINEERING dei!RAPPR0XIMAIELY60ACCESSI3tBMODIFICATIONSI0POSI-0DIAGE-APPR0XIMAIElYll0F10TALSUPPORIS 5
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CABLEIRAYSU??0RIS CONSIDERATIONS TO XE!I CURRENT U204 C0)DlIIMENT RECENTENGINEERINGSCOPEINCREASEIDENIlflCATION SIGNIFICN EXISIING OUIAGE '40RK/ RESOURCE >!ANAGE)1i.XI LOAD REMAINING MODIFICATIONS CAN BE 'iORKED ?0ST OUIAGE SMAllNMER0FFiODIFICATIONS l
CABLEIRAYSUPPORIS CONSIDERATIONS TO MEET CURRENT U204 COMIDDT SIGNIFICANISAFEIYANDRELIABILITYMODIFICATIONSPMSNEDALONGWIE REGULAIORY EACK!0G CLOSE0UT AND 00EID!E.
COMPLETION AS PARI Of E
TNIEGRATEDSCHEDULINGPROGRAM INSIDECONTAINME.W
- MID LOOP iEVEL INSTRUMENIAIION - GL 88-17
- UBI REMOVAL - R INIENANCE AND ALARA
- SIEAM GENERATOR ED3Y CURRE.
IESIING AND REPAIR - BULLETIN 88-02 W
- POSIA001 DENT MONIIORING INSTRUMENIATION - RG 1.97 LICENSE CONDIT
- RIG 0ROUSLY ANALYZED PIPING SUPPORI M0DIFICATIONS - CO M IIMENI
- RID BYPASS ELIMINATION - SOURCE TERM REDUCTION
- RCP CARTRIDGE SEAL REPLACEMFJT - MAINTENANCE OUISIDEC0.UAINMENT
- CONTROL ROOM DESIGN REVIEW - NUREG 0737 FOR HUMAN FACIOR UPGRA
-EAGLE 21 UPGRADE-REPLACEOBS0lEIEEQUIPMENTANDFEEDWATER REDUCTION
-FWHEAIERS3AND4REPLACEBT-S/GPRESERVATION
- B0RON INJECTION TANK DEA 0TIVAIION - MALUENANCE AND ALARA, GL 85-16 h
CABLETRAYSUPP0RIS SAFEIT ASSESSMBT EXPECIONLYlPER0ENT10REQUIREMODIFICAIION10MEEILONGIERM (FSAR) CRITERIA SUPPORIS103EMODIFIEDAREOUALIFIED10RESIARICRITERIA ENGINEERINGWIllBECOMPLETEBEFOREEND0FOUIAGE RESOURCESAll00AIED10INDIATEANDMOSIBENEFICIALOUIAGE PRIORIIIES WORl( SHIFIED SHORT DURATION FROM PEAL ( IN-PIAU ACTIVIIT LOAD 1
9
CABLETRAYSUPPORIS 00N0!.USION SUPPORTSQUALIFIED10RESIARICRITERIA; ENGINEERING 10BECOM?l!IE-N0 OPERABILITYISSUES 91PER0ENT07POPULAIIONQUALIFIEDASORIGINALLYSCHEDULED 00MMIIMENT CMLEIION BY STARIUP FROM IHE U204 RF0 00UI.D RESULI IN NECESSARYUJIAGERESOURCE/WORKCONTROLIMPACIWITHOUTASIGNIFICAN INCREASEINSAFEIY IVA'REQUESISNRCCON0URRENCEWITHREVISEDSCHEDULEFORFEBRUARY2 lP l0
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J. Brady OGC E. Jordan D. Terao J. Fair T. Cheng P. Harmon ACRS(10)
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