ML17331B131

Forwards DC Cook Units 1 & 2 Main Steam Safety Valve Lift Setpoint Tolerance Relaxation, to Replace Analysis Attached to 921111 Submittal to Justify TS Change to Increase Allowable Tolerances

ML17331B131
Person / Time
Site:	Cook
Issue date:	12/17/1993
From:	FITZPATRICK E INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	MURLEY T E NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17331B132	List: ML17331B131 ML17331B133
References
AEP:NRC:1169A, NUDOCS 9312230045
Download: ML17331B131 (7)

Text

"'ACCELERATED ISTRIBUTION DEMON/'RATION SYSTEMI'!REGULATORY INFORMATION DISTRXBUTION SYSTEM(RIDS)DOCKET0500031505000316ACCESSXON NBR:9312230045 DOC.DATE:

93/12/17NOTARIZED:

YESFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATION FITZPATRXCK,E.

IndianaMichiganPowerCo.(formerly Indiana6MichiganEleRECXP.NAME RECIPIENT AFFILIATION RMURLEY,T.E.

DocumentControlBranch(Document ControlDesk)

SUBJECT:

Forwards"DCCookUnits1&2MainSteamSafetyValveLiftSetpointTolerance Relaxation,"

toreplaceanalysisattachedto921111submittal tojustifyTSchangetoincreaseallowable tolerances.

DISTRIBUTION CODE:A001DCOPIESRECEIVED:LTR ENCLSIZETITLE:ORSubmittal:

GeneralDistribution NOTES:SF/RECXPIENT IDCODE/NAME PD3-1LAHICKMAN,J XNTERNAL:

NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SPLBNUDOCS-ABSTRACT OGC/HDS2EXTERNAL:

NRCPDRCOPIESLTTRENCL1122111111111011RECIPIENT IDCODE/NAME PD3-1PDNRR/DORS/OTS BNRR/DRPWNRR/DSSA/SRXB O~CLFDCB01NSICCOPIESLTTRENCL11111111101111DDDNOTETOALL"RIDS"RECIPIENTS:

DDPLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION, LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR16ENCL14 IndianaMichi~PowerCompai~P.O.Box16631Columbus, OH43216AEP:NRC:1169A DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74UPDATEFORTECHNICAL SPECIFICATIONS CHANGETOINCREASETHEALLOWABLE TOLERANCES FORMAINSTEAMSAFETYVALVESU.S.NuclearRegulatory Commission DocumentControlDeskWashington, D.C.20555Attn:T.E.MurleyIDecember17,1993

DearDr.Murley:

Thisletterissubmitted toreplaceananalysisthatwasattachedtoourNovember11,1992submittal tojustifyatechnical specification changetoincreasetheallowance tolerances forthemainsteamsafetyvalvesforDonaldC.CookNuclearPlantUnits1and2to+3%.TheanalysisissuedasAttachment 4intheoriginalsubmittal assumesnominalratherthanminimumauxiliary feedwater flowsforUnit1.Thisisanon-conservative assumption whenconsidering asmallbreakLOCA,aswasdiscussed withyourstaffonNovember12,1993.Westinghouse ReportSECL-91-429, Revision2,"DonaldC.CookUnits1and2,MainSteamSafetyValveLiftSetpointTolerance Relaxation,"

isfoundinAttachment 1ofthisletter.Unit2auxiliary feedwater flowassumptions werecorrectintheoriginalsubmittal.

Attachment 1hasbeenupdatedwiththecorrectauxiliary feedwater flowsforUnit1andtheresultsdonotchangetheconclusions reachedintheoriginalsubmittal letter.PleasereplaceAttachment 4oftheNovemberll,1992letterwithAttachment 1ofthisletter.9312230045 931217PDRADOCK05000315.P,'DR Dr.T.E.Murley2-AEPNRC:1169A Thisletterissubmitted pursuantto10CFR50.54(f)and,assuchanoathstatement isattached.

Sincerely, VicePresident cadAttachment cc:A.A.BlindG.CharnoffJ.B.Martin-RegionIIINFEMSectionChiefNRCResidentInspector J.R.Padgett Dr.T.E.Murley3AEP:NRC:1169A bc:S.J.BrewerD.H.MalinM.L.Horvath-Bridgman-w/oattachment J.B.KingseedD.F.PowellJ.B.Shinnock-w/oattachment W.G.Smith,Jr.J.B.Hickman,NRC-Washington, D.C.AEP'NRC'1169A DC-N-6015.1

-w/oattachment STATEOFOHIO)COUNTYOFFRANKLIN)

E.E.Fitzpatrick, beingdulysworn,deposesandsaysthatheistheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingUPDATEFORTECHNICAL SPECIFICATIONS CHANGETOINCREASETHEALLOWABLE TOLERANCES FORMAINSTEAMSAFETYVALVESandknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed andsworntobeforemethis~~~dayof19~8NOTARPUBLICRITAD.HILLHOTARVPUCI.IC.STATOFOHIOf8COI,IMISSIOX DIPIRiS ATTACHMENT 1toAEP:NRC:1169A WESTINGHOUSE REPORTSECL-91-429, Revision2,"DONALDC.COOKUNITS1AND2MAINSTEAMSAFETYVALVELIFTSETPOINTTOLERANCE RELAXATION" hyI!1