ML17055C942
| ML17055C942 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 03/31/1987 |
| From: | MANGAN C V NIAGARA MOHAWK POWER CORP. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| Shared Package | |
| ML17055C943 | List: |
| References | |
| (NMP2L-1014), NUDOCS 8704030364 | |
| Download: ML17055C942 (8) | |
Text
REQVLATtINFORNATION DISTRIBVTIOQYBTEN (RIDE)ACCjESSIQN NBR:87040303b4 DOC.DATE:87/03/31NOTARIZED:
YESFACIL:50-410 NineMilePointNuclearStationiUnit2iNiagaraMohaAUTH.NAMEAUTHORAFFILIATION MANQAN>C.4'.NiagaraMohawkPowerCorp.RECIP.NAMERECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)DOCKET005000410
SUBJECT:
Forwards"Assessment ReptonNeedforLeakageControlSgsforNineMilePointUnit2i"ger870320discussions reRockwellwgepatternglobetypeMSIVs.Internalverifica+ion oftechnical detailsexpectedtobecompleted:
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hl7NIASRAH4MOHAWKNIAGARAMOHAWKPOWERCORPORATION/301 PLAINFIELD ROAD,SYRACUSE, N.Y.13212/TELEPHONE (315)474-1511March31,1987(NMP2L1014)U.S.NuclearRegulatory Commission ATTN:DocumentControlDeskWashington, D.C.20555RE:NineMilePointUnit2DocketNo.50-410Gentlemen:
Enclosedistheinformation requested bytheNuclearRegulatory Commission staffregarding theNineMilePointUnit2RockwellwyepatternglobetypeMainSteamIsolation Valves.Thereportaddresses severalissuesthatwerediscussed withtheNuclearRegulatory Commission staffonMarch20,1987:l.Acomparison oftheNineMilePointUnit2RockwellMainSteamIsolation ValvestoRockwellvalvesusedatothernuclearpowerplantsforthisservice.2.Acompilation ofindustryleakratetestingresultsandexperience.
3.Anevaluation ofitems1and2aboveandacomparison totheNUREG1169analysisperformed forUnit2,including anestimateofleakageperformance overthefirstoperating cycle.4.Adiscussion ofthemaintenance practices plannedatUnit2toenhanceleakagecharacteristics.
Thisinformation isprovidedtosupporttheNRC'sevaluation oftheneedfortheinstallation ofaLeakageControlSystemforUnit2.NiagaraMohawkhasconcluded, baseduponitsassessment contained herein,thataleakagecontrolsystemfortheMSIV'sisnotrequired'he enclosedreportsupplements information previously providedonMarch18,1987regarding theradiological assessment ofMainSteamIsolation Valveleakage.8704030364 870331,'"
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.PageTwoNiagaraMohawkiscontinuing itsinternalverification ofthetechnical detailscontained inthisletter.Thisverification isexpectedtobecompleted byApril3,1987,andwewillnotifyyouimmediately shouldweidentifyanynecessary corrections.
Sincerely yours,SeniorVicePresident CVM/NLR/bwr (0320K)xc:RegionalAdministrator, RegionIMs.E.G.Adensam,ProjectDirectorMr.N.A.Cook,ResidentInspector ProjectFile(2) h UNITEDSTATESOFAMERICANUCLEARREGULATORY COIrIIfiISSION IntheMatterof]]NiagaraMohawkPowerCorporation
]](NineMilePointUnit2)]OocketNo.50-410AFFIDAVIT C.V.Manan,beingdulysworn,statesthatheisSeniorVicePresident ofNiagaraMohawkPowerCorporation; thatheisauthorized onthepartofsaidCorporation tosignandfilewiththeNuclearRegulatory Commission thedocuments attachedhereto;andthatal,lsuchdocuments aretrueandcorrecttothebestofhisknowledge, information andbelief.Subscribed andsworntobeforeme,aNotaryPublicinandfortheStateofNewYorkandCountyof,thisBIdayof/Yl~/,]g87NotayPublicinandforCounty,NewYork'MyCommission expires:MARYFRATESCHI NotaryPubtlclntheStateofNewYorkQualiffed InOnonCaaCountyNo.479755MyCommlealon Explroehlarch30.19.
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