ML17309A618

Provides Addl Info to Assist NRC in Exam of RCP Flywheel Insp Interval Change.Revised ISI Program Document Section Xi Rev 1 Contains Updated RCP Requirements

ML17309A618
Person / Time
Site:	Ginna
Issue date:	07/08/1997
From:	MECREDY R C ROCHESTER GAS & ELECTRIC CORP.
To:	VISSING G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17264A947	List: ML17264A946 ML17309A618
References
NUDOCS 9707170007
Download: ML17309A618 (15)

Text

IgalCATEGORY1REGULATORYINFORMATIONDISTRIBUTIONTEM(RIDE)ACCESSIONNBR:9707170007DOC.DATE:97/07/08NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterGAttH,NAMEAUTHORAFFI.'>IATIONMECREf)Y,R.C.RochesterGas&ElectricCorp.RECIV.NAMERECIPIENTAFFILIATIONVISS'.NG,G.DOCKETI'05000244g~ce~+

SUBJECT:

Providesaddiinfotoassistinexamof970318ltrtoNRCre"ReactorCoolantPumpFlywhellInspIntervalChange."AlsoforwardsSectionXI,rev0&revisedSectionXI,rev1CwhichcontainsupdatedRCPrequirements6examsperformed.ADISTRIBUTIONCODE:AOOIDCOPIESRECEIVED:LTRJENCLfSIZE:+L~/TITLE:ORSubmittal:GeneralDistributionNOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).05000244RECIPIENTIDCODE/NAMEPD1-1LAVISSING,G.INTERNAL:ILE1NRR/DE/EMCBNRR/DSSA/SPLBNUDOCS-ABSTRACTEXTERNAL:NOACCOPIESLTTRENCL11111111111111RECIPIENTIDCODE/NAMEPD1-1PDNRR/DE/ECGB/A,NRR/DRCH/HICBNRR/DSSA/SRXBOGC/HDS3NRCPDRCOPIESLTTRENCL111111111'.11D0UNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,RooMowFN5D-5(EXT.415-2083)ToELIMINATEY0URNAMEFRQMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!",TOTAL'UMBEROFCOPIESREQUIRED:LTTR13ENCL12

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4NDROCHESTERGASANDELECTRICCORPORATION~89EASTAYENUE,ROCHESTER,N.YIdhf9-0001AREACODE71654rS-2700ROBERTC.MECREDYVicePresidentNodeorOperotionsU.S.NuclearRegulatoryCommissionDocumentControlDeskAttn:GuyVissingProjectDirectorateI-1Washington,D.C.20555July8,1997

Subject:

ReactorCoolantPumpFlywheelInspectionIntervalChangeAdditionalInformationR.E.GinnaNuclearPowerPlantDocketNo.50-244Ref.(a):LetterfromRobertC.Mecredy,(RG&E),toGuyS.Vissing,(NRC),"ReactorCoolantPumpFlywheelInspectionIntervalChange,"datedMarch18,1997.

DearMr.Vissing:

Thepurposeofthisletteristoprovideadditionalinformationtoassistyouintheexaminationofthereferencedtransmittal.Thereactorcoolantpump(RCP)flywheelinspectionwasnotpartofthepreviousR.E.GinnaTechnicalSpecifications.Assuch,ithasnotbeencarriedintotheImprovedTechnicalSpecifications.ThepreviousInserviceInspection(ISI)programdocumentrelatedtoRCPflywheelinspectionsisSectionXIRevision0.TherevisedISIprogram.documentisSectionXIRevision1whichcontainstheupdatedRCPrequirements.Copiesofthesetwodocumentsareenclosed.Inaddition,acopyoftheexaminationsperformedduringthesecondperiodofthethirdintervalareenclosed.Shouldyouhaveanyquestions,pleasecallGeorgeWrobelat(716)724-8070.Verytrulyyours,RobertC.MecredyEnclosuresREJi4709707f70007tt70708'tl,PDRADQCK",05000244te'PDaLIllllllllllllllllllllllllllllllilllllllll xc:Mr.GuyVissing(MailStop14B2)ProjectDirectorateI-1Washington,D.C.20555U.S.NuclearRegulatoryCommissionRegionI475AllendaleRoadKingofPrussia,PA19406GinnaSeniorResidentInspector 9707170007ADDIT,IONALPROGRAMSECTION11Revision0Page1of91.0General:ThepurposeofthissectionistoprovideinformationandclarificationonadditionalinspectionprogramsbeingperformedatR.E.GinnaNuclearPowerPlant.TheseinspectionprogramsmaybedueinparttoASMESectionXIprogramrequirementsortoothercommitmentsmadebyRochesterGasandElectric.ThefollowinglistidentifiesadditionalinspectionprogramsbeingperformedatR.EDGinnaNuclearPowerPlant:*SteamGeneratorTubeInspectionProgram*ReactorCoolantPumpFlywheelProgram*ReactorVesselAugmentedProgram,CategoryB-A2.02.1General:2.1.1TheSteamGeneratorTubeInspectionProgramincorporatestherequirementsofASMESectionXICode,under'ategoryB-Q,ItemNumberB16.20.TheCoderequiresthatSteamGeneratortubinginU-TubeDesignbevolumetrically(Eddy.Current)examinedtotheextentandfrequencygovernedbytheplantTechnicalSpecifications.InaccordancewiththisCoderequirementandR.E.GinnaStationTechnicalSpecifications,eddycurrentexaminationsshallbeperformed.SteamGeneratorTubingshallbeexaminedtheirfulllength,atleastonceeveryfiveyears.

ADDITIONALPROGRAM-SECTIONt1Revision0Page2of92TheSteamGeneratorTubeInspectionProgramalsoincorporatestherequirementsofUSNRCRegulatoryGuide1.83,Revision1,datedJuly,1975,"InserviceInspectionofPressurizedWaterReactor.SteamGeneratorTubes"andtherecommendationsoftheElectricPowerResearch.(EPRI)-PWRSteamGeneratorInspectionGuidelines,X'8t885~8gpxevkPgx'8li8xCiag2.2Xasyectx'cek"'pxogram~2.2.1TheprogramforeachXeegeet'y'en'may'C9~8ofthefive-yearsshallinclude,asaminimum,.thefollowingrequirements:2.'.Arotatingrandomsamplingof20%ofalloperationaltubesfortheirfulllength.g'h'S'Surrngi~lllR~!'PO<'.'~O@i'uh'e!ejg8ha'3'"'3'Fp+!he-'*',;.+OnRP'3;:O'te'd!Arotating,randomsampleof.20-.'ofeachtypeof.sleevedinlettubefortheirfulllength,includingthesleevefromtheupperendthroughtheexpandedtransitionofthelowexend.-AlloperationaltubesthathadapreviouslyidentifiedSerOPee:;::.:candu'Oeidegradationofgreaterthan20';throughwalltotheextentofpreviouslyidentifieddegradation.However,ifaftertwo(2)consecutiveinspectionsthesetubeshavenothadgreaterthan10-.furtherpenetration,theinspectionfrequencyonthesetubesmaybeextendedto40months.

'ADDITlONAL,PROGRAMSECTlON11Revision0Page3of92.2..2Othertubesmaybeadded.totheprogrameachi'aspic'Ct'xoQ~@CpC3leasnecessarytomeetotherconcernsandareclassifiedas"ownerelected"."OwnerElected"examinationsarenotmandatoryandmaybeperformedasdeterminedbytheowner.2.2.3TheGinnaSteamGeneratorReliabilityCommitteemaychangetheaforementionedplantomeetoutageschedules,providedthatthechangesmeettherequirementofRegulatoryGuide1.83andSupplement1:it!f!':i.::,i':ll"W,:.-'i:;::,:,,',ll:'::!1i,:,2.3ExaminationMethod:2.3.1EddyCurrent(Volumetric)ExaminationtechniquesshallbeemployedtoperformtherequiredexaminationsonSteamGeneratortubes.2.4PrecpxencyofExaminations:2.4.1Examinationsshallbeperformedevery-$!esp'e'Cp'ee'::,';:.,",;,O'JJ',.C3!8totheextentrequiredandspecifiedwithin2.2,asaminimum.2.5ExaminationEvaluation:2.5.1EddyCurrentevaluationshallbeperformedinaccordancewith('8gpdeVe'5;,'-p'Wo'ee5~8'e.

ADDITIONALPROGRAMSECTlON'1'tRevision0Page4of92.6Repair,ReplacementandTestingRequirements2.6.1-Repaircriteriaforsteamgenerato'rtubesis-basedontherequirementsofRegulatoryGuide1.121,"BasesforPluggingDegradedPWRSteamGeneratorTubes".2.6.1.1Steamgeneratortubesthathaveimperfectionsgreaterthan40percentthrough-wallasindicatedbyeddycurrent,shallbe'repairedbypluggingorsleeving..2.6.1.2Steamgeneratorsleevesthathaveimperfectionsgreaterthan30percentthroughwallasindicatedbyeddycurrentshallberepairedbyplugging.2.6.2Repairsbyweldedplugsandsleevesshallbeperformedinaccordancewith88Cti'Op<@32:.2.72.7.1'IScheduling:EddyCurrentexaminationschedulesof'SteamGenerator,'ubesshallbeestablishedwithinSupplement1,~/@he%%8'8~r'Vi'C8'.":."INO'C.t'ACE~jP~NC'gX8N>~P3,"cN2.8ReportsandRecords:2.8.1ApplicablerecordsshallbemaintainedasspecifiedwithinSection1andSe'C'tk<ML3,,'2::.2.8.2.Within15daysfollowingthecompletionoftheevaluationofeachinserviceinspectionofsteamgeneratortubes,,thenumberoftubesrequiredbyParagraph2.6.1abovetobepluggedorsleevedineachsteamgeneratorshallbereportedtotheNRCinaSpecialReport.

te ADDITIONALPROGRAMSECTION11Revision0Page5of9ThecompleteresultsofthesteamgeneratortubeinserviceinspectionshallbesubmittedtotheBRCinRRNÃk$aSpecialReportwithin12monthsfollowingthecompletionoftheinspection.ThisSpecialReportshallinclude:(a)Numberoftubesinspectedandextenttowhichinspected.(b)Locationandpercentpenetrationforeachimperfection,andofwall-thicknessindicationofan(c)Identificationoftubespluggedorsleeved.Ifthenumberoftubesinageneratorfallingintocategories(a)or(b).belowexceedsthecriteria,thenresultsoftheinspectionshallbeconsideredaReportableEventpursuantto10CFR50.73.OralnotificationtotheNRCStaffshall'beaccomplished'ithin48hours,butnosoonerthanthenextnormalworkingdayafterthefinalreviewoftheeddycurrentresults.Awrittenfollowupreportshallprovideadescriptionofinvestigationsconductedtodeterminethecauseofthetubedegradationandcorrectivemeasurestakentoprecluderecurrence.Categories(a)and(b)are:(a)Morethan10percentofthetotaltubesinspectedaredegraded(imperfectionsgreaterthan20percentofthenominalwallthickness).However,previouslydegradedtubesmustexhibitatleast10percentfurtherwallpenetrationtobeincludedinthiscalculation.

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<<ADDITIONALPROGRAMSECTION11Revision0Page6of9'b)Norethan1percentofthetotaltubesinspectedaredegraded(imperfectionsgreaterthantherepairlimit).3.03.1General:TheaugmentedinserviceinspectionprogramforReactorCoolantPumpFlywheelsincorporatestherequirementsoftheUSNRCRegulatoryGuide1.14,Revision1,datedAugust1975,entitled"ReactorCoolantPumpFlywheelIntegrity".3.2ExaminationRequirements:3.2~1"ExaminationsshallbeperformedonallactiveReactorCoolantPumpFlywheelsandAnti-Rotation,Pawls.3.3ExaminationMethod,:3.3.1ReactorCoolantPumpFlywheelsshallbeexaminedusingUltrasonicandSurfaceexaminationtechniques.3.3.2ReactorCoolantPumpAnti-RotationPawlsshallbeexaminedusingSurfaceexaminationtechniques.3~3.3UltrasonicandSurfaceexaminationsshallconformtoandbeperformedinaccordancewithSection1ofthisprogram.

'CADDITlONALPROGRAMSECT1ON11Revision0Page7of93.4FrequencyofExaminations:3.4.1ExaminationsshallbeperformedonalloperatingReactorCoolantPumpPlywheelandAnti-RotationPawlsonceeachperiod.13.5ExaminationEvaluation:3.5.1ExaminationevaluationsshallbeperformedinaccordancewithSection1ofthisprogram.3.5.2Unacceptableexaminationsshallbereport'ed.forevaluation,andappropriatecorrectiveaction.3.6Repair,ReplacementandTestingRequirements3.6.1RepairsandReplacementsshallbeperformedinaccordancewith~88Ct'ieli~g!3',asapplicable.3.7Scheduling:3.7.1ExaminationschedulesshallbeestablishedwithinSuPPiementZ.,.themezne'etS,i'Ce@znSPeetacn<<PX'Ogtem-:.:X',1:an.3.8ReportsandRecords:3.8.1ApplicablerecordsshallbemaintainedasspecifiedinSectioni:ade:;-:,:eSticoin'2

ADDITlONALPROGRAMSECTION11Revision0Page8of9General:AsspecifiedwithintheFederalRegister,10CFRPart50,Vol.57,No.152datedAugust6,1992,aspecificaugmentedexaminationprogramisrequiredforASNESectionXICategoryB-A,ShellWeldsof"PressureRetainingWeldsinReactorVessel".ExaminationRecpxirements:ExaminationsshallbeperformedonallASNESectionXICategoryB-A,ItemB1.0,ShellWeldsof"PressureRetainingWeldsinReactorVessel"thatarenotrequiredbytheCode.ExaminationMethod.:UltrasonicexaminationsshallconformandbeperformedinaccordancewithSection1ofthisprogram.FrequencyofExaminations:ExaminationsshallbeperiormedonceduringtheInspectionInterval.ExaminationEva1uation:ExaminationEvaluationsshallbeperformedinaccordancewithSection1ofthisprogram.

'w~ADD1TIONALPROGRAMSECT!ON11Revision0Page9of9Unacceptableexaminationsshallbereportedforevaluationandappropriatecorrectiveaction.Repair,ReplacementandTestingRecpxirements(4.6.1RepairsandReplacementsshallbeperformedinaccordancewithSect'a'o~ti;,;:1'2:,asapplicable.Scheduling:ExaminationschedulesshallbeestablishedwithinSupplement1,::,t58FX's'eptlXC8~sXgfSy'O'CdiCXf..":.":PX'agxlaN:;,;Plan@ReportsandRecords:4!.8.1Applicable'ecordsshall,bemaintained'sspecifiedwithinSection1and8'8~C54~On's"'42:,.