ML17320B009

Application for Amend to License DPR-74,consisting of Proposed Emergency Change to Tech Spec 3.9.2 Re Refueling Operations

ML17320B009
Person / Time
Site:	Cook
Issue date:	04/24/1984
From:	HERING R F INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	DENTON H R Office of Nuclear Reactor Regulation
Shared Package
ML17320B010	List: ML17320B009 ML17320B011
References
AEP:NRC:0890, AEP:NRC:890, NUDOCS 8404300023
Download: ML17320B009 (6)

Text

V>>REGULATORY

<FORMATION t)ISTRIBUTION S)EM(RIDS)ACCESSION NBR:6400300023 DOC,DATE:

64/04/24NOTARIZED; NODOCKETFACIL:50-316 DonaldC.CookNuclearPowerPlantiUnit2iIndiana805000316AUTH'AtlE AUTHORAFFILIATION HERINGgR.F.

Indiana8MichiganElectricCo.RECIP.NAMERECIPIENT AFFILIATION tDENTONrH~REOfficeofNuclearReactorRegulationp DirectorI

SUBJECT:

Application foramendtoLicenseDPR-74iconsisting ofproposedemergency changetoTechSpec3.9.2rerefueling operations,DISTRUTIONCODE:A001SCOPIESRECEIVED:LTR ENCLSIZE:TT,:ORSubmittal:

GeneralDistribution NOTES:RECIPIENT IDCODE/NAYiE NRRORB1BC01INTERNAL; ELD/HDS3NRR/DLDIRI/METB4COPIESLTTRENCL7701111RECIPIENT IDCODE/NAME NRR/DE/MTEB NRR/DL/ORAB NRR/DSI/RAB RGN3COPIESLTTRENCL110111EXTERNAL:

ACRS'NRCPDRNTIS0902661111LPDRNSIC0305111TOTALNUMBEROFCOPIESREQUIRED:

LTTR25ENCL23 IWyILI~\N:<leil'>ne'l-I4g~IIliI'IIIQfiI'ili INDIANA8NICHIGANELECTRICCONPANYP.O.BOX16631COLUMBUS, OHIO43216April24,1984AEP:NRC:0890 DonaldC.CookNuclearPlantUnitNo.2DocketNo.50-316LicenseNos.DPR-74PROPOSEDEMERGENCY CHANGETOTECHNICAL SPECIFICATION 3.9.2Mr.HaroldR.Denton,DirectorOfficeofNuclearReactorRegulation U.S.NuclearRegulatory Commission Washington, D.C.20555

DearMr.Denton:

Duetospecificcircumstances currently existingatD.C.CookNuclearPlantUnit2,wearerequesting anemergency changetothesubjectTechnical Specification (T/S).Specifically, theT/Sstates:"Asaminimum,twosourcerangeneutronfluxmonitorsshallbeoperating, eachwithcontinuous visualindication inthecontrolroomandonewithaudibleindication inthecontainment andcontrolroom.ACTION:Withthezeguizements oftheahovespecification notsatisfied, immediately suspendallopezations involving COREALTERATIONS orpositivereactivity changes..."

Thecurrentcircumstances atthePlantare:(1)OnFriday,April20,1984,duringtheUnit2refueling activities, oneofthetwosourcerangeneutronfluxmonitorsbeganbehavingerratically, rendering itinoperable.

(2)Wehaveproceeded topartially dewatertherefueling cavitytomakerepairstotheinoperable monitor.Wehavereplacedthedetectorandarestillunabletoachievesuccessful operation.

(3)Defueling (COREALTERATIONS) activities weresuspended withallbut30fuelassemblies removed.(4)Twooftheremaining 30fuelassemblies containsourcesforstartupofthereactor.Fifteenassemblies arenearoperabledetectorN31andfifteenassemblies arenearinoperable detectorN32.(5)Continued delaystofixtheinoperable detectorpriortocompletion ofdefueling woulddelaystartupcommensurately fornoapparentsafetyreasons.8404300023 840424PDRADOCK05000316DR IWp

~Mr.HaroldR.DentoAEP:NRC:0890

~~Therefore, weareproposing thatT/S3.9.2beamendedtoallowdefueling oftheremaining 30assemblies duringthecurrentUnit2(1984)outage,withonlyoneOPERABLEsourcerangeneutronfluxmonitor.Basedonourreviewofthecurrentcoreconditions, wehaveconcluded thatthecoremultiplication factor(k-effective) willalwaysbereducedbytheremovaloffuelassemblies andthecommensurate replacement of2000ppmboratedwater.Therefore, webelievetheremaining 30fuelassemblies couldberemovedwithonlyoneOPERABLEsourcerangeneutronmonitorandnotcreatesignificant hazardsconsideration asdefined10CFR50.92.Specifically, theproposedchangewillnotincreasetheprobability orconsequences ofapreviously-analyzed accident.

Thechangemayreduceinsomewayasafetymargin,butitisclearlywithintheacceptance criteriaformaintaining thecoresubcritical.

TheAttachment tothislettercontainstheproposedrevisedT/Spage.Thechangeisindicated byverticalbarsdrawnontherighthandmarginofthepage.TheproposedchangehasbeenreviewedbythePlantNuclearSafetyReviewCommittee andwillbereviewedbytheNuclearSafetyandDesignReviewCommittee atitsnextscheduled meeting.Pursuanttotherequirements of10CFR50.91(b)(1),

acopyofthisletteranditsattachment havebeentransmitted toMr.R.C.CallenoftheMichiganPublicServiceCommission.

Weinterpret thisapplication foralicenseamendment toconstitute aClassIIIAmendment asdefinedin10CFR170.22.Therefore, acheckintheamountof$4000.00willbeforwarded inthenearfutureaspaymentforprocessing theaforementioned request.Thisdocumenthasbeenpreparedfollowing Corporate procedures whichincorporate areasonable setofcontrolstoinsureitsaccuracyandcompleteness priortosignature bytheundersigned.

Verytrulyyours,R.F.HeringVicePresidenAttachment cc:JohnE.DolanW.G.Smith,Jr.-BridgmanR.C.CallenG.CharnoffE.R.Swanson,NRCResidentInspector

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