IR 05000410/1987022
| ML18038A383 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 12/31/1987 |
| From: | MANGAN C V NIAGARA MOHAWK POWER CORP. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| NMP2L-1101, NUDOCS 8801140004 | |
| Download: ML18038A383 (6) | |
Text
(IACCELERATZDNISI'RIBUTIONDEMONSTRATIONSYSTEM'REGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)CESSIONNBR:8801140004DOC.DATE:87/12/31NOTARIZED:NODOCKETFACIL:50-410NineMilePointNuclearStation,Unit2,NiagaraMoha05000410AUTH.NAMEAUTHORAFFILIATIONMANGAN,C.V.NiagaraMohawkPowerCorp.RECIP.NAME,RECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)
SUBJECT: RevisedresponsetoviolationsnotedinInspRept50-410/87-22.DISTRIBUTIONCODE:IE01DCOPIESRECEIVED:LTRENCLMSIZE:TITLE:General(50Dkt)-InspRept/NoticeofViolationResponseNOTES'21I0500041(5RECIPIENTIDCODE/NAMEPD1-1PDBENEDICT,BINTERNAL:ACRSDEDRO'RR/DLPQ/PEBNRR/DREP/EPBNRR/DRISDIR0BERMAN,JREGFILRGN1FE01EXTERNAL:LPDRNSICCOPIESLTTRENCL112222111111111111111111RECIPIENTIDCODE/NAMEHAUGHEY,MAEODNRRMORISSEAU1DNRR/DOEADIRNRR/DREP/RPBNRR/PMAS/ILRBOGC/HDS1RESDEPYGINRCPDRCOPIESLTTRENCL221111112211111111jASA10TOTALNUMBEROFCOPIES'REQUIRED:LTTR25ENCL$5
7NIAGARAuIN&AWKNIAGARAMOHAWKPOWERCORPORATION/30$PLAINFIELDROAD,SYRACUSE,N.Y.13212/TELEPHONE(315)474-1511December31,1987NMP2L1101U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskNashington,D.C.20555Re:NineMilePointUnit2DocketNo.50-410NPF-69Gentlemen:NiagaraMohawk'sletterdatedSeptember10,1987(NMPlL0182)providedaresponsetoitem87-22-10identifiedincombinedInspectionReportNos.50-220/87-12and50-410/87-22.ThisresponseindicatedthataninstructionsheetonhowtorestorepowertothePostAccidentSamplingSystemsamplevalvesandstoreroomelevatorintheeventpowerwaslostwouldbepreparedandincorporatedintotheappropriateprocedurebyDecember15,1987.Hehavereevaluatedourresponseanddeterminedthataninstructionsheetisnotrequired.Hewill,however,process.amodificationtomodifythepowersupplytothePostAccidentSamplingSystemsamplevalves.Therefore,thevalvesidentifiedbytheinspectorwillhaveacommonDivisionIpowerinonesamplelineandDivisionIIpowerintheothersampleline.Thepowersupplywillcontinuetobefromtheuninterruptiblepowersupply.Theisolationvalvesinthesamplelinesareonthesamedivisionalpowersupply.ThemodificationdescribedabovewillresolvetheNuclearRegulatoryCommissionInspector'sconcernregardingtheinabilitytotakeaPostAccidentSamplingSystemsampleintheeventoflossofdivisionalpowersupply.OurlicensingpersonneldiscussedthischangewiththeSeniorResidentInspector,Mr.W.A.Cook,onDecember14,1'987.8801i40004871231PDRADOCK050004100DCDpl'/c
U.S.NuclearRegulatoryCommissionPage2Withrespecttothestoreroomelevator,wehavedeterminedthatthe600voltloadcenterforthiselevatorwi11automaticallytransfertoaNineMilePointUnit1powersourceintheeventpowerislostfromitsnormalsource.Ifallpowerislostortheelevatorisotherwisedisabled,wewouldimplementtheinstructionsinourprocedure(ChemistrySurveillanceProcedureN2-CSP-13,(AppendixM))fortransportationofpost-accidentsamplesandutilizeapickuptrucktomovethesamplecaskfromUnit2toUnitl.Verytrulyyours,NIAGARAMOHAWKPOWERCORPORATIONC.V.ManganSeniorVicePresidentLW/jac(1077G)cc:RegionalAdministrator,RegionIMr.R.A.Capra,DirectorMr.W.A.Cook,ResidentInspector