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)

Text

kCCE1KPATEDD1BUI3OYBEM0~STlOYSYSTEMeeREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316RI+RSDD

SUBJECT:

Application.

foramendstoLicenses'PR-58

&DPR-74,to clarifyresponsetimetestingrequirements forPRNFRT.DISTRIBUTION CODE:A001DCOPIESRECEIVED:LTR ENCLSIZE:TITLE:ORSubmittal:

GeneralDistribution NOTES:COPIESLTTRENCL11RECIPIENT IDCODE/NAME PD3-1PDCOPIESLTTRENCL1155RECIPIENT IDCODE/NAME PD3-1LASTANG,J111111111011INTERNAL:

ARM/DAF/LFMB NRR/DEST/CEB 8HNRR/DEST/ICSB NRR/DEST/RSB 8E-ABSTRACT RElFIE'110111.1111111NRR/DEST/ADS 7ENRR/DEST/ESB 8DNRR/DEST/MTB 9HNRR/DOEA/TSB 11OGC/HDS1RES/DSIR/EIB ACCESSION NBR:8904040229 DOC.DATE:

89/03/29NOTARIZED:

NOFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,Indiana&50-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&AUTH.NAME.AUTHORAFFILIATION ALEXICH,M.P.

IndianaMichiganPowerCo.RECIP.NAME

'ECIPIENT AFFILIATION MURLEY,T.E.

DocumentControlBranch(Document ControlDesk)EXTERNAL:

LPDRNSIC1111NRCPDR11NAZEK)ALL"RIDS"RECIPIENIS'LEASE HELPUSK)REDUCEWASTE!COMI'ACZ'IHEDOCUMENTCONIBDLDESK,RDCMPl-37(EXT.20079)KOELIMINATE YOURNMEFRYDISTRIBUTION LISTSFORDOCUHENZS YOUDON'TNEED!STOTALNUMBEROFCOPIESREQUIRED:

LTTR22ENCL20 indianaMichiganPowerCompanyP.O.Box16631Coiumbus, OH43216ItlAIEMANA MCHE6'ANPWE5kAEP:NRC:1078 DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74CLARIFICATION OFRESPONSETIMETESTINGREQUIREMENTS FORPOWERRANGENEUTRONFLUXREACTORTRIPU.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555Attn:T.E.Murley1March29,1989

DearDr.Murley:

Thisletterconstitutes anapplication foramendment totheTechnical Specifications (T/Ss)fortheDonaldC.CookNuclearPlant.Units1and2.Specifically weareproposing toclarifytheresponsetimetestingrequirements forthepowerrangeneutronfluxreactortrip.Adetaileddescription ofthechange,ourreasonsforrequesting thechange,andouranalysesconcerning significant hazardsarecontained inAttachment 1.Attachment 2includestheproposedrevisedT/Spages.Webelievethattheproposedchangeswillnotresultin(1)asignificant changeinthetypesofeffluents orasignificant increaseintheamountsofanyeffluentthatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheseproposedchangeshavebeenreviewedbythePlantNuclearSafetyReviewCommittee andwillbereviewedbytheNuclearSafetyandDesignReviewCommittee attheirnextregularly scheduled meeting.Incompliance withtherequirements of10CFR50.91(b)(1),

copiesofthisletteranditsattachments havebeentransmitted toMr.R.C.CallenoftheMichiganPublicServiceCommission andMr.GeorgeBruchmann oftheMichiganDepartment ofPublicHealth.S904040229 S90329PDRADOCK05000315PPDCoor Dr.T.E.Murley-2-AEP'NRC:1078 Thisdocumenthasbeenpreparedfollowing Corporate procedures thatincorporate areasonable setofcontrolstoensureitsaccuracyandcompleteness priortosignature bytheundersigned.

Sincerely, M.P.AlichVicePresident ldpAttachments cc:D.H.Williams, Jr.W.G~Smith,Jr.-BridgmanR.C.CallenG.CharnoffA.B.DavisNRCResidentInspector

-BridgmanG.Bruchmann ATTACHMENT 1TOAEP:NRC1078REASONSAND10CFR50.92ANALYSESFORCHANGESTOTHEDONALDC.COOKNUCLEARPLANTUNITS1AND2TECHNICAL SPECIFICATIONS Attachment 1toAEP:NRC:1078 Page1DescritionofChaneThisletterproposestoclarifytherequirements ofTable3.3-2,"ReactorTripSystemInstrumentation ResponseTimes,"byindicating thattherequirements ofFunctional Unit2applytoboththehighandlowpowerrangeneutronflux(PRNF)reactortripsetpoints.

BackroundandReasonsforChaneDuringareviewofourreactortripsysteminstrumentation timeresponsetestingprocedures, itwasobservedthatthetimeresponsetestprocedure forthenuclearinstrumentation systemPRNFreactortriponlyincludedthehighsetpointtrip.SincecreditwastakenforthelowsetpointtripinthesafetyanalysisforbothUnits1and2,thelowsetpointshouldhavebeentimeresponsetested.ItisbelievedthatthelackofspecificdetailintheT/Ssregarding theseparatesetpoints wasacontributing factortothelackoftesting,andwearetherefore submitting theproposedchangesofthislettertoensurethatsufficient detailisincludedintheT/SsforthePRNFreactortrip.Justification forChaneThesechangesareconsidered tobeadministrative innatureandintendedtoclarifytheresponsetimetestingrequirements forthePRNFreactortrip.Nooperability orsurveillance requirements willbereducedasaresultofthischange.AnalsisofSinificantHazardsPer10CFR50.92,aproposedamendment willnotinvolvesignificant hazardsconsideration iftheproposedamendment doesnot:(1)involveasignificant increaseintheprobability orconsequences ofapreviously evaluated

accident, (2)createthepossibility ofanewordifferent kindofaccidentfromanypreviously evaluated, or(3)involveasignificant reduction inamarginofsafety.Criterion 1ThischangeisintendedtoclarifytheexistingT/Srequirements forthePRNFreactortrip,Nooperability orsurveillance requirements havebeenreduced.Wetherefore believethechangedoesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously analyzedorasignificant reduction inamarginofsafety.

Attachment 1toAEP:NRC:1078 Page2Criterion 2Thechangedoesnotinvolvephysicalmodifications totheplantorchangesinplantoperation.

Thechangetherefore shouldnotcreatethepossibility ofanewordifferent kindofaccidentfromanypreviously analyzedorevaluated.

Criterion 3SeeCriterion 1above.Lastly,wenotethattheCommission hasprovidedguidanceconcerning thedetermination ofsignificant hazardsbyproviding certainexamples(48FR14870)ofamendments considered notlikelytoinvolvesignificant hazardsconsideration.

Thefirstoftheseexamplesreferstochangeswhicharepurelyadministrative innature:forexample,changestoachieveconsistency throughout theT/Ss,correction oferrors,orchangesinnomenclature.

Theproposedchangeonlyclarifies thepresentT/S.Wearenotproposing toreduceanypresentrequirements.

Forthesereasons,webelievethattheexamplecitedisapplicable andthattheproposedchangeshouldnotinvolvesignificant hazardsconsideration.

TABLE3.3-2REACTORTRIPSYSTEMINSTRUMENTATION RESPONSETIMESFUNCTIONAL UNIT1.ManualReactorTripRESPONSETIMENOTAPPLICABLE 2.PowerRange,NeutronFlux(HighandLowSetpoint)

Lessthanorequalto0.5seconds3.PowerRange,NeutronFlux,HighPositiveRateNOTAPPLICABLE 4.PowerRange,NeutronFlux,HighNegativeRateLessthanorequalto0.5seconds*5.Intermediate Range,NeutronFluxNOTAPPLICABLE 6.SourceRange,NeutronFlux7.Overtemperature deltaTNOTAPPLICABLE Lessthanorequalto6.0seconds8.Overpower deltaT9.Pressurizer Pressure--Low NOTAPPLICABLE Lessthanorequalto1.0seconds10.Pressurizer Pressure--High Lessthanorequalto1.0seconds11.Pressurizer WaterLevel--High NOTAPPLICABLE

• Neutrondetectors areexemptfromresponsetimetesting.Responsetimeoftheneutronfluxsignalportionofthechannelshallbemeasuredfromdetectoroutputorinputoffirstelectronic component inchannel.COOKNUCLEARPLANT-UNIT23/43-9AMENDMENT NO.

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