ML18040A095

Forwards Response to NRC 930722 RAI Addressing Util 921217 Submittal for Svc Level a & B Loadings & Util 930226 Submittal for Svc Level C & D Loadings,In Ref to GL 92-01, Reactor Vessel.... Calculation in Central Files

ML18040A095
Person / Time
Site:	Nine Mile Point
Issue date:	09/08/1993
From:	SYLVIA B R NIAGARA MOHAWK POWER CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17059A032	List: ML17059A031 ML18040A095
References
GL-92-01, GL-92-1, NMP1L-0779, NMP1L-779, TAC-M83486, NUDOCS 9309140272
Download: ML18040A095 (4)

Text

ACCELERATFD DOC'UMEYT DISTR.8UTIONSYS'1'EMREGULAYINFORMATION DISTRIBUTIO YSTEM(RIDS)ACCESSION NBR:9309140272 DOC.DATE:

93/09/08NOTARIZED:

NODOCKETFACIL:50-220 NineMilePointNuclearStation,Unit1,NiagaraPowe05000220AUTH.NAMEAUTHORAFFILIATION SYLVIA,B.R.

NiagaraMohawkPowerCorp.tI'~oW~RECIP'.NAME RECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)DNOTES:

SUBJECT:

ForwardsresponsetoNRC930722RAIaddressing util921217Isubmittal forSvcLevelAaBloadings6util930226submittal forSvcLevelC6Dloadings,in reftoGL92-01,"ReactorVesselStructural Integrity."

DISTRIBUTION CODE:R028DCOPIESRECEIVED:LTR (ENCLQSIZE:TITLE:GenericLetter92-01Responses (ReactorVesselStructural Integrity 1RECIPIENT IDCODE/NAME PD1-1PDINTERNAL:

ACRSNRR/DORS/OGCB NRR/DRPWCARDBREGFIL01COPIESLTTRENCL116611111011RECIPIENT IDCODE/NAME BRINKMAN,D.

NRR/DE/EMCB NRR/DRPE/PDI-1 NUDOCS-ABSTRACT OGC/HDS1RES/DE/MEB COPIESLTTRENCL222211111011DEXTERNAL:

NRCPDR1ljl/$NSIC114PDNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTIIEDOCUMEN'I'ON'I'I<OL D)"SK,ROOMPl-37(EXT.504-2065)

TOELIMINATE YOURNAMEFROMDISCI'RIBU'I'ION LISTSFORDOCUMENTS YOUDON'TNEED!DTOTALNUMBEROFCOPIESREQUIRED:

LTTR21ENCL19 1I".yLlt-'ll VHIIASAUMCjNIAWKSeptember 8,1993NMP1L0779NIAGARAMOHAWKPOWERCORPORATION/NINE MILEPOINT,P.O.BOX63,LYCOMING, NY13093/TELEPHONE (315)349-2882B.RalphSylviaExecutive VicePresident NuclearU.S.NuclearRegulatory Commission

Attn'.DocumentControlDesk;Washington, D.C.20555Re

NineMilePointUnit1DocketNo.50-220DPR-63TANM4

SUBJECT:

GENERICLETTER92-01,REVISION1,REACTORVESSELSTRUCTURAL INTEGRITY, REQUESTFORADDITIONAL INFORMATION

'Gentlemen:

BylettersdatedDecember17,1992(NMP1L0723)andFebruary26,1993(NMP1L0739),NiagaraMohawkprovidedelastic-plastic fracturemechanics assessments forNineMilePointUnit1beltlineplatesforServiceLevelAandBloadingsandServiceLevelCandDloadings, respectively.

Thesereportsdemonstrate thatamarginofsafetyexistsagainstfractureequivalent tothatrequiredbyAppendixGofASMECodeSectionIII,forbeltlineplateshavingupper-shelf energyvaluesbelowthescreening criterion of50ft-lb.ByletterdatedJuly22,1993,theNRCStaffrequested thatNiagaraMohawksubmitadditional information foreachoftheabovesubmittals, asidentified inEnclosures 1and2oftheirletter.EnclosedisNiagaraMohawk'sresponsetotheStaff'sJuly22,1993requestforadditional information.

TheEnclosure 1responses addressourDecember17,1992submittal forServiceLevelAandBloadingsandtheEnclosure 2responses addressourFebruary26,1993submittal forServiceLevelCandDloadings.

Verytrulyyours,B.RalphSylviaExec.VicePresident-Nuclear AER/mls004283GGEnclosure pc:Mr.T.T.Martin,RegionalAdministrator Mr.R.A.Capra,Director, ProjectDirectorate I-1,NRRMr.D.S.Brinkman, SeniorProjectManager,NRRMr.W.L.Schmidt,SeniorResidentInspector

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