ML17264A834

Informs of Intention to Change Reactor Coolant Pump Flywheel Insp Interval from Current 3-yr Interval to 10-yr Interval, Consistent w/WCAP-14535A

ML17264A834
Person / Time
Site:	Ginna
Issue date:	03/18/1997
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	VISSING G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9703250218
Download: ML17264A834 (4)

Text

CATEGORY1

SUBJECT:

Informsofintention tochangereactorcoolantpumpflywheelinspintervalfromcurrent3-yrintervalto10-yrinterval, consistent w/WCAP-14535A.

DISTRIBUTION CODE:A001DCOPIESRECEIVED:LTR iENCLQSIZE:TITLE:ORSubmittal:

GeneralDistribution T05000244ENOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

REGULATOINFORMATION DISTRIBUTION TEM(RIDS)IACCESSION NBR:9703250218 DOC.'DATE:

97/03/18NOTARIZED:

NODOCKETFACIAL:50-,244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester G05000244AUTH.NAMEAUTHORAFFILIATION MECREDY,R.C.

Rochester Gas!'lectric Corp.RECIP.NAME RECIPIENT AFFILIATION VISSING,G.

INTERNALRECIPIENT IDCODE/NAME PD1-1LAVISSING,G.

CENTE0NRR'E/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT COPIESLTTRENCLRECIPIENT IDCODE/NAME PDl-1PDNRR/DE/ECGB/A NRR/DRCH/HICB NRR/DSSA/SRXB OGC/HDS3COP1ESLTTRENCLEXTERNAL:

NOAC11NRCPDRDENOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMOWFN5D-5(EXT.

415-2083)

TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR13ENCL ANDROCHESTER GASANDELECTRICCORK)RATION

~89EASTAYENUE, ROCHESTER N.YIdiW9-0001 AREACODE716Sd6-2700ROBERTC.MECREDYVicePresident NvdearOperations March18,1997U.S.NuclearRegulatory Commission DocumentControlDeskAttn:GuyVissingProjectDirectorate I-1Washington, D.C.20555

Subject:

ReactorCoolantPumpFlywheelInspection IntervalChangeR.E.GinnaNuclearPowerPlantDocketNo.50-244Ref.:WCAP-14535A, "TopicalReportonReactorCoolantPumpFlywheelInspection Elimination,"

datedNovember, 1996

DearMr.Vissing:

ThepurposeofthisletteristoinformtheNRCthatRochester GasandElectric(RG&E)intendstochangeourreactorcoolantpump(RCP)flywheelinspection intervalfromthecurrent3-yearintervaltoa10-yearinterval.

Thischangeisconsistent withtherationale discussed inthereferenced WCAP(andtheincludedNRCSafetyEvaluation Report)asbeinginaccordance withthecriteriaofRegulatory Guide1.14.Theinspection willconsistofanUltrasonic (UT)examination overthevolumefromtheinnerboretothecircleofone-halftheouterradiusorasurfaceexamination (UT/PT)ofexposedsurfacesdefinedbythevolumeofthedisassembled flywheelasdetermined atthetimeofinspection.

Baseduponcurrentplantschedules, the>>A>>RCPflywheelwillbeinspected inthe2003plantrefueling outageandthe>>B>>RCPflywheelwillbeinspected inthe2005plantrefueling outage.Insupportofthischange,asrequested intheNRC'sSER,RG&Ehasverified, throughcorrespondence withtheNSSvendor,thattheGinnaRCPflywheels aremadeofSA533Bmaterials.

Verytrulyyours,RobertC.MecredyREJ/45197OSaSoaaS 97OSX87PDRADQCK05000244Ž"PDRIIllllllll1llll[llllljIlllllllllfl1HIIHlllll xc.'r.GuyVissing(MailStop14B2)ProjectDirectorate I-1Washington, D.C.20555U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector CiCy