ML17325B183

Application for Amends to Licenses DPR-58 & DPR-74, Clarifying Response Time Testing Requirements for Power Range Neutron Flux Reactor Trip

ML17325B183
Person / Time
Site:	Cook
Issue date:	03/29/1989
From:	ALEXICH M P INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	MURLEY T E NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17325B184	List: ML17325B183 ML17325B185
References
AEP:NRC:1078, NUDOCS 8904040229
Download: ML17325B183 (9)

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kCCE1KPATEDD1BUI3OYBEM0~STlOYSYSTEMeeREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DOCKET0500031505000316RI+RSDD

SUBJECT:

Application.foramendstoLicenses'PR-58&DPR-74,toclarifyresponsetimetestingrequirementsforPRNFRT.DISTRIBUTIONCODE:A001DCOPIESRECEIVED:LTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionNOTES:COPIESLTTRENCL11RECIPIENTIDCODE/NAMEPD3-1PDCOPIESLTTRENCL1155RECIPIENTIDCODE/NAMEPD3-1LASTANG,J111111111011INTERNAL:ARM/DAF/LFMBNRR/DEST/CEB8HNRR/DEST/ICSBNRR/DEST/RSB8E-ABSTRACTRElFIE'110111.1111111NRR/DEST/ADS7ENRR/DEST/ESB8DNRR/DEST/MTB9HNRR/DOEA/TSB11OGC/HDS1RES/DSIR/EIBACCESSIONNBR:8904040229DOC.DATE:89/03/29NOTARIZED:NOFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,Indiana&50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&AUTH.NAME.AUTHORAFFILIATIONALEXICH,M.P.IndianaMichiganPowerCo.RECIP.NAME'ECIPIENTAFFILIATIONMURLEY,T.E.DocumentControlBranch(DocumentControlDesk)EXTERNAL:LPDRNSIC1111NRCPDR11NAZEK)ALL"RIDS"RECIPIENIS'LEASEHELPUSK)REDUCEWASTE!COMI'ACZ'IHEDOCUMENTCONIBDLDESK,RDCMPl-37(EXT.20079)KOELIMINATEYOURNMEFRYDISTRIBUTIONLISTSFORDOCUHENZSYOUDON'TNEED!STOTALNUMBEROFCOPIESREQUIRED:LTTR22ENCL20 indianaMichiganPowerCompanyP.O.Box16631Coiumbus,OH43216ItlAIEMANAMCHE6'ANPWE5kAEP:NRC:1078DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74CLARIFICATIONOFRESPONSETIMETESTINGREQUIREMENTSFORPOWERRANGENEUTRONFLUXREACTORTRIPU.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555Attn:T.E.Murley1March29,1989

DearDr.Murley:

ThisletterconstitutesanapplicationforamendmenttotheTechnicalSpecifications(T/Ss)fortheDonaldC.CookNuclearPlant.Units1and2.Specificallyweareproposingtoclarifytheresponsetimetestingrequirementsforthepowerrangeneutronfluxreactortrip.Adetaileddescriptionofthechange,ourreasonsforrequestingthechange,andouranalysesconcerningsignificanthazardsarecontainedinAttachment1.Attachment2includestheproposedrevisedT/Spages.Webelievethattheproposedchangeswillnotresultin(1)asignificantchangeinthetypesofeffluentsorasignificantincreaseintheamountsofanyeffluentthatmaybereleasedoffsite,or(2)asignificantincreaseinindividualorcumulativeoccupationalradiationexposure.TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommitteeandwillbereviewedbytheNuclearSafetyandDesignReviewCommitteeattheirnextregularlyscheduledmeeting.Incompliancewiththerequirementsof10CFR50.91(b)(1),copiesofthisletteranditsattachmentshavebeentransmittedtoMr.R.C.CallenoftheMichiganPublicServiceCommissionandMr.GeorgeBruchmannoftheMichiganDepartmentofPublicHealth.S904040229S90329PDRADOCK05000315PPDCoor Dr.T.E.Murley-2-AEP'NRC:1078ThisdocumenthasbeenpreparedfollowingCorporateproceduresthatincorporateareasonablesetofcontrolstoensureitsaccuracyandcompletenesspriortosignaturebytheundersigned.Sincerely,M.P.AlichVicePresidentldpAttachmentscc:D.H.Williams,Jr.W.G~Smith,Jr.-BridgmanR.C.CallenG.CharnoffA.B.DavisNRCResidentInspector-BridgmanG.Bruchmann ATTACHMENT1TOAEP:NRC1078REASONSAND10CFR50.92ANALYSESFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITS1AND2TECHNICALSPECIFICATIONS Attachment1toAEP:NRC:1078Page1DescritionofChaneThisletterproposestoclarifytherequirementsofTable3.3-2,"ReactorTripSystemInstrumentationResponseTimes,"byindicatingthattherequirementsofFunctionalUnit2applytoboththehighandlowpowerrangeneutronflux(PRNF)reactortripsetpoints.BackroundandReasonsforChaneDuringareviewofourreactortripsysteminstrumentationtimeresponsetestingprocedures,itwasobservedthatthetimeresponsetestprocedureforthenuclearinstrumentationsystemPRNFreactortriponlyincludedthehighsetpointtrip.SincecreditwastakenforthelowsetpointtripinthesafetyanalysisforbothUnits1and2,thelowsetpointshouldhavebeentimeresponsetested.ItisbelievedthatthelackofspecificdetailintheT/Ssregardingtheseparatesetpointswasacontributingfactortothelackoftesting,andwearethereforesubmittingtheproposedchangesofthislettertoensurethatsufficientdetailisincludedintheT/SsforthePRNFreactortrip.JustificationforChaneThesechangesareconsideredtobeadministrativeinnatureandintendedtoclarifytheresponsetimetestingrequirementsforthePRNFreactortrip.Nooperabilityorsurveillancerequirementswillbereducedasaresultofthischange.AnalsisofSinificantHazardsPer10CFR50.92,aproposedamendmentwillnotinvolvesignificanthazardsconsiderationiftheproposedamendmentdoesnot:(1)involveasignificantincreaseintheprobabilityorconsequencesofapreviouslyevaluatedaccident,(2)createthepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluated,or(3)involveasignificantreductioninamarginofsafety.Criterion1ThischangeisintendedtoclarifytheexistingT/SrequirementsforthePRNFreactortrip,Nooperabilityorsurveillancerequirementshavebeenreduced.Wethereforebelievethechangedoesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyanalyzedorasignificantreductioninamarginofsafety.

Attachment1toAEP:NRC:1078Page2Criterion2Thechangedoesnotinvolvephysicalmodificationstotheplantorchangesinplantoperation.Thechangethereforeshouldnotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyanalyzedorevaluated.Criterion3SeeCriterion1above.Lastly,wenotethattheCommissionhasprovidedguidanceconcerningthedeterminationofsignificanthazardsbyprovidingcertainexamples(48FR14870)ofamendmentsconsiderednotlikelytoinvolvesignificanthazardsconsideration.Thefirstoftheseexamplesreferstochangeswhicharepurelyadministrativeinnature:forexample,changestoachieveconsistencythroughouttheT/Ss,correctionoferrors,orchangesinnomenclature.TheproposedchangeonlyclarifiesthepresentT/S.Wearenotproposingtoreduceanypresentrequirements.Forthesereasons,webelievethattheexamplecitedisapplicableandthattheproposedchangeshouldnotinvolvesignificanthazardsconsideration.

TABLE3.3-2REACTORTRIPSYSTEMINSTRUMENTATIONRESPONSETIMESFUNCTIONALUNIT1.ManualReactorTripRESPONSETIMENOTAPPLICABLE2.PowerRange,NeutronFlux(HighandLowSetpoint)Lessthanorequalto0.5seconds3.PowerRange,NeutronFlux,HighPositiveRateNOTAPPLICABLE4.PowerRange,NeutronFlux,HighNegativeRateLessthanorequalto0.5seconds*5.IntermediateRange,NeutronFluxNOTAPPLICABLE6.SourceRange,NeutronFlux7.OvertemperaturedeltaTNOTAPPLICABLELessthanorequalto6.0seconds8.OverpowerdeltaT9.PressurizerPressure--LowNOTAPPLICABLELessthanorequalto1.0seconds10.PressurizerPressure--HighLessthanorequalto1.0seconds11.PressurizerWaterLevel--HighNOTAPPLICABLE*Neutrondetectorsareexemptfromresponsetimetesting.Responsetimeoftheneutronfluxsignalportionofthechannelshallbemeasuredfromdetectoroutputorinputoffirstelectroniccomponentinchannel.COOKNUCLEARPLANT-UNIT23/43-9AMENDMENTNO.

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