ML17037B668

Nine Mile Point Unit 1 - Letter Regarding a Revision to 10 CFR Part 50, Section 50.55a and an Enclosed NRC Staff Guidance for Complying with Certain Provisions of 10 CFR 50.55a(g), Inservice Inspection Requirements.

ML17037B668
Person / Time
Site:	Nine Mile Point
Issue date:	11/22/1976
From:	Lear G Office of Nuclear Reactor Regulation
To:	Rhode G K Niagara Mohawk Power Corp
References
41 FR 6256
Download: ML17037B668 (4)

Text

NOV2"21976DistributionORB83LocalPDRINRCPDRDocket,Ho.50-220VStelloTJCarterGLearCParrishNiagarattohawkPowerCorporationJWetmoreATTN:fir.GeraldK.RhodeSNowickiVicePresident-Engineering300ErieBoulevard)lestAttorney,OELDSyracuse,HewYork13202OI&E(3)DEisenhutGentlemen:TBAbernathyJRBuchananRE:HIHEBILEPOINTNUCLEARSTATIONUHITA@S1(16)Earlierthisyearwesentletterstolicenseesofoperatingnuclearpowerplantsnotifyingthemofarevisionto10CFRPart,50,Section50.55awhichwaspublishedintheFederalRegfsteronFebruary12,1976(41FR6256).Therevisedregulationchangedthefnservfceinspectionandtestingrequire-.mentsfornuclearpowerplantcomponentscontainedfnparagraph(g)ofI50.55a.AletterregardingthissubjectwassenttoyouonApril26,1976.Sincethattime,theHRChasreceivedanumberofinquiriesfromlicenseesregardingacceptablemethodsforcomplyingwiththeregulation.Ingeneral,theinquirieshavebeendirectedtowardthreemajorareasrelativetocompliancewiththeregulation:1.ThedeterminationofwhichASMEBoilerandPressureVesselCodeEditionandAddendaareapplicableforanyupdatedfnserviceinspectionortestingprogram,2.TherequirementtoconformtheTechnicalSpecificationstoarevfsedprogram,and3.TheprocessofobtainingrelieffromAQ/ECoderequirementsfoundtobeimpractical.Consequently,wearetransmittingforyouruse,Enclosure1:"HRCStaffGuidanceForComplyingwithCertainProvisionsof10CFR50.55a(g),InserviceInspectionRequirements".Thisenclosuredescribesthemajorprovisionsoftherevisedregulation,addressestheareasoflicenseeconcernlistedabove,'andpro-videsguidanceoninformationwhichtheHRCstaffwillneedtoreviewinservice'nspectionandtestingprogramsand'oevaluaterequestsforrelieffromASHECoderequirementsthataredeterminedtobeimpractical.liebelievethisenclosurewillservetoclarifythepropermethod(s)forimplementingtheregulationinseveralimportantareas.OPPIC2~SORNAMLWOATS'ormhEC.318(Rev.9-33)hEI02404U,0OOVSRNMSNTPll!NTINOOPPIClll1074424100 0IItIIIII 1NOV22197'iagarat'-ohawkPowerCorporation-2-1/ereiterateourpreviousrequestthatyousubmitproposedTechnicalSpecificationchangestoincorporatestandardlanguagereferencingg50.55a(g),atleast6monthsbeforethestartofthenext40-monthinspectionperiodforyourfacility.Also,asdiscussedinEnclosure1,youshouldsubmitadescriptionofyourplannedinserviceinspectionandtestingprograms,aswellasanyrequestforrel'ieffromAStiECoderequirementsdeterminedtobeimpracticalforyourfacility,asfarfnadvanceaspossibleof,butatleast90daysbefore,thestartofany40-monthfnserviceinspectionperiod,or20-monthpumpandvalvetestingperiod.Inaddition,wewouldliketoemphasizeanimportantpointregardingtheAStfECodeSectionXIrequfrementstotestselectedpumpsandvalves,thatarenowincorporatedinii50.55a(g):TheASfiECodeSectionXIrequirementsapplyonlytoselectedvalvesandpumpsthatcanbetestedwithoutplacingtheplantfnanunsafecondition.Youshouldexercisecareinplanningyourtestingprogramsto.ensurethatnotestwillbeconductedwhiletheplant'fsinanoperatingmodethatwouldmakeftvulnerabletoatesterrororatest,failure.Particularattentionshouldbedirectedtowardthevalveexercising(cycling)tests.Inthisregard,somebasicguidelinesforexcludingexercising(cycling)testsofcertainvalvesduringplantoperationarecontainedfnEnclosure2.ValveleakagetestsandothervalveandpumptestsrequiredbytheAShiECode,shouldbereviewedforeachcomponent,relativetoeachplantoperatingmode,toensurethatnotestwillhaveanadverseimpactonplantsafety.Ifyouhaveanyfurtherquestionsregardingimplementationof10CFR50.55a(g)atyourfacility,pleasecontactus.Sincerely,

Enclosures:

HRCStaffGuidanceforComplyfngwithCertainProvisionsof10CFR60.65a(g)2.GufdelinesforExcludingExercising(Cycling)TestsofCertainValvesDuringPlantOperation/rhinalsignedbyGeorgeLear,ChiefOperatingReactorsBranch¹3DivisionofOperatingReactorsOPPICC~4URNAMCWDATC~ORB¹3ORB¹.We,tmo,r...11/Q/mjf.6ORB¹3GLea,r,W11~/76FormhEC-318(Rcv.9.33)hECM0240QU4OOYCRNMCNTPRINTINOOPPICCIl074424I44 q',0V~IIhilII'II~knrNUlt'