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{{#Wiki_filter:'CCELERATEDDISTRIBUTIONDEMONSITIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)DOCKET0500031505000316DISTRIBUTIONCODEA001DCOPIESRECEIVEDLTRENCLSIZE:TITLE:ORSubmittal:GeneralDistributionACCESSIONNBR:9401270035DOC.DATE:94/01/17NOTAR1ZED:YESFACIL:50-315DonaldC.CookNuclearPowerPlant,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATIONFITZPATRICK,E.IndianaMichiganPowerCo.(formerlyIn'a@a6iciganEleRECIP.NAMERECIPIENTAFFILIATIONf'MURLEY,T.E.DocumentControlBranch(DocumentControlDesk)~~~I
{{#Wiki_filter:'CCELERATED DISTRIBUTION DEMONSITIONSYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316DISTRIBUTION CODEA001DCOPIESRECEIVEDLTRENCLSIZE:TITLE:ORSubmittal:
GeneralDistribution ACCESSION NBR:9401270035 DOC.DATE:
94/01/17NOTAR1ZED:
YESFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,IndianaM50-316DonaldC.CookNuclearPowerPlant,Unit2,IndianaMAUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E.
IndianaMichiganPowerCo.(formerly In'a@a6iciganEleRECIP.NAME RECIPIENT AFFILIATION f'MURLEY,T.E.
DocumentControlBranch(Document ControlDesk)~~~I


==SUBJECT:==
==SUBJECT:==
ApplicationforamendstolicensesDPR-586DPR-74,changingTS3/4.1.3toincreaselimitforcontrolrodmisalignmentatorbelow85~ratedthermalpower."ControlRodMisalignmentAnalysis"encl.SNOTES:RECIPIENTIDCODE/NAMEPD3-1LAHICKMAN,JCOPIESLTTRENCL1122RECIPIENTIDCODE/NAMEPD3-1PDCOPIESLTTRENCL11ADDINTERNAL:NRR/DE/EELBNRR/DRCH/HICBNRR/DSSA/SPLBNUDOCS-ABSTRACTOGC/HDS2EXTERNAL:NRCPDR111111111011NRR/DORS/OTSBNRR/DRPWNRR/DSSA/SRXBOCCBE8-...M.LK~01NSIC111111101111DANOTETOALL"RIDS"RECIPIENTS:1'LEASEHELPUSTOREDUCEWAS'ONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISISFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR16ENCL14D IndianaMichiganPowerCompanyP.O.Box16631Columbus,OH43216RAEP:NRC:1182DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICALSPECIFICATIONCHANGEREQUESTRODMISALIGNMENTREQUIREMENTFORMOVABLECONTROLASSEMBLIESU.S.NuclearRegulatoryCommissionDocumentControlDeskWashington,DAC.20555Attn:Dr.T.E.MurleyJanuary17,1994
Application foramendstolicensesDPR-586DPR-74,changing TS3/4.1.3toincreaselimitforcontrolrodmisalignment atorbelow85~ratedthermalpower."ControlRodMisalignment Analysis" encl.SNOTES:RECIPIENT IDCODE/NAME PD3-1LAHICKMAN,J COPIESLTTRENCL1122RECIPIENT IDCODE/NAME PD3-1PDCOPIESLTTRENCL11ADDINTERNAL:
NRR/DE/EELB NRR/DRCH/HICB NRR/DSSA/SPLB NUDOCS-ABSTRACT OGC/HDS2EXTERNAL:
NRCPDR111111111011NRR/DORS/OTS BNRR/DRPWNRR/DSSA/SRXB OCCBE8-...M.LK~
01NSIC111111101111DANOTETOALL"RIDS"RECIPIENTS:
1'LEASEHELPUSTOREDUCEWAS'ONTACT THEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISISFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:
LTTR16ENCL14D IndianaMichiganPowerCompanyP.O.Box16631Columbus, OH43216RAEP:NRC:1182 DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATION CHANGEREQUESTRODMISALIGNMENT REQUIREMENT FORMOVABLECONTROLASSEMBLIES U.S.NuclearRegulatory Commission DocumentControlDeskWashington, DAC.20555Attn:Dr.T.E.MurleyJanuary17,1994


==DearDr.Murley:==
==DearDr.Murley:==
ThisletteranditsattachmentsconstituteanapplicationforamendmenttotheTechnicalSpecifications(T/S)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically,weareproposingtochangeT/S3/4.1.3forbothunits.ThesechangesincreasetheT/Slimitforcontrolrodmisalignmentatorbelow85%RatedThermalPower.ThechangesalsoincreasetheT/Slimitforcontrolrodmisalignmentabove85$RatedThermalPowerifthereissufficientmarginintheHeatFlux(Fo(Z))andtheNuclearEnthalpy(F>H)HotChannelFactors.IAdescriptionoftheproposedchangesandouranalysisconcerningsignificanthazardsconsiderationpursuantto10CFR50.92arecontainedinAttachmentl.Attachment2containstheexistingT/Spagesmarkedtoreflectproposedchanges.Attachment3containstheproposed,revisedT/Spages.Attachment4containstheanalysestosupporttheT/Schanges.WebelievethattheproposedT/Schangeswillnotresultin(1)asignificantchangeintheamountofanyeffluentsthatmaybereleasedoffsite,or(2)asignificantincreaseinindividualorcumulativeoccupationalradiationexposure.TheseproposedT/SchangeshavebeenreviewedandapprovedbythePlantNuclearSafetyReviewCommitteeandbytheNuclearSafetyandDesignReviewCommittee.  
Thisletteranditsattachments constitute anapplication foramendment totheTechnical Specifications (T/S)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically, weareproposing tochangeT/S3/4.1.3forbothunits.ThesechangesincreasetheT/Slimitforcontrolrodmisalignment atorbelow85%RatedThermalPower.ThechangesalsoincreasetheT/Slimitforcontrolrodmisalignment above85$RatedThermalPowerifthereissufficient marginintheHeatFlux(Fo(Z))andtheNuclearEnthalpy(F>H)HotChannelFactors.IAdescription oftheproposedchangesandouranalysisconcerning significant hazardsconsideration pursuantto10CFR50.92arecontained inAttachment l.Attachment 2containstheexistingT/Spagesmarkedtoreflectproposedchanges.Attachment 3containstheproposed, revisedT/Spages.Attachment 4containstheanalysestosupporttheT/Schanges.WebelievethattheproposedT/Schangeswillnotresultin(1)asignificant changeintheamountofanyeffluents thatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.
TheseproposedT/SchangeshavebeenreviewedandapprovedbythePlantNuclearSafetyReviewCommittee andbytheNuclearSafetyandDesignReviewCommittee.  


Dr.T.E.Murley2AEP:NRC'1182Incompliancewiththerequirementsof10CFR50.91(b)(1),copiesofthisletteranditsattachmentshavebeentransmittedtoMr.J.R.PadgettoftheMichiganPublicServiceCommissionandtheMichiganDepartmentofPublicHealth.Thisletterissubmittedpursuantto10CFR50.30(b)and,assuch,anoathstatementisattached.Sincerely,E.E.FitzpatrickVicePresidentdrAttachmentscc:A.A.BlindG.CharnoffJ.B.Martin-RegionIIINRCResidentInspectorNFEMSectionChiefJ.R.Padgett Dr.T.E.Murley3AEP'NRC:1182bc:S.J.Brewer-w/oattachmentD.H.Malin/G.JohnP.A.Barrett-w/oattachmentM.L.Horvath-w/oattachmentW.G~Smith,Jr.J.B.Shinnock-w/oattachmentJ.B.Hickman,NRC-Washington,DCDC-N-6015.1-w/oattachmentAEP'NRC:1182 STATEOFOHIO)COUNTYOFFRANKLIN)E.E.Fitzpatrick,beingdulysworn,deposesandsaysthatheistheVicePresidentoflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTECHNICALSPECIFICATIONCHANGEREQUEST'ODMISALIGNMENTREQUIREMENTFORMOVABLECONTROLASSEMBLIESandknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledgeandbelief.Subscribedsndsworntobeforemethis~/dayof19~.NOTARYPUBLICBITINGD.HILLTTOTAPsYPUDLIC.STATEOFOHIO ATTACHMENT1TOAEP'NRC'1182DESCRIPTIONOFPROPOSEDTECHNICALSPECIFICATIONCHANGESAND10CFR50.92SIGNIFICANTHAZARDSCONSIDERATIONANALYSIS t
Dr.T.E.Murley2AEP:NRC'1182 Incompliance withtherequirements of10CFR50.91(b)(1),
Attachment1toAEP:NRC:1182Page1DescritionofChanes(bothunits)TheLimitingConditionforOperationinT/S3.1.3.1ischangedtointroduceaterm"allowedrodmisalignment"toreplacetheconstant"+12steps"misalignmentgivenintheexistingT/S.Also,theLimitingConditionforOperationischangedtoallow+18stepsmisalignmentatorbelow85%ofRatedThermalPower(RTP)andfrom+12stepsto+18stepsmisalignmentabove85%RTP.Thevalueofallowedrodmisalignmentforpowerlevelsgreaterthan85%RTPistobeobtainedfromthenewT/SFigure3.1-4,providedthattheratio(definedasR)ofF>>limitat100%RTPtomaximummeasuredF>Hisgreaterthan1.04.Actionitemsa,bandcarechangedtouse"allowedrodmisalignment"insteadof"+12steps."Surveillancerequirement4.1.3.1.3isaddedtoprovideforthedeterminationoftheallowedrodmisalignmentabove858RTP.Specifically,thisrequirementstatesthattheallowedrodmisalignmentforpowerlevelsgreaterthan858RTPshallbedeterminedinconjunctionwiththemeasurementoftheAllowablePowerLevelasspecifiedinT/S4.2.6.2.2.TheLimitingConditionforOperationinT/S3.1.3.2ischangedtouse"allowedrodmisalignment"insteadof"+12steps"tobeconsistentwithT/S3.1.3.1.Actionitemb.landsurveillancerequirement4.1.3.2arealsochangedtouse"allowedrodmisalignment."3.Figure3.1-4,AllowedRodMisalignmentAbove85%RTP,isaddedtotheT/S.4~Basesforsection3/4.2.2and3/4.2.3ischangedtospecifyanallowedrodmisalignmentof+18stepsatorbelow858RTPandanallowedrodmisalignmentof+12stepsto+18stepsabove85$RTP,ReasonfortheChanesExperiencewiththeAnalogRodPositionIndication(ARPI)Systemhasshownthattheindicatedmisalignmentcouldbegreaterthan12steps.AsperT/Sactionitem3.1.3.2.a,anincorefluxmaphastobetakenevery8hours(incorefluxmapsaretakenevery6hourstobeconservative)toverifytheactuallocationoftherod.Inallcasesthesefluxmapshaveshownthattherewasnoactualrodmisalignment.ChangingtheT/Sto  
copiesofthisletteranditsattachments havebeentransmitted toMr.J.R.PadgettoftheMichiganPublicServiceCommission andtheMichiganDepartment ofPublicHealth.Thisletterissubmitted pursuantto10CFR50.30(b)and,assuch,anoathstatement isattached.
',H Attachment1toAEP:NRC:1182Page2allow+18stepsmisalignmentwillreducetheusageofthefluxmappingsystem.HeavyuseofthefluxmappingsystemmayrequiremoremaintenanceworkandmaybeanALARAconcern.Furthermore,powertransients(shutdowns)havebeeninitiatedasrequiredbytheT/Sswhichwereunnecessary.PowermaneuversandfullpoweroperationhavealsobeenlimitedduetoARPIindication.Itshouldbenotedthatifmisalignedrodsaredetected(viachangesinPower,QuadrantTiltorFluxMap)theyarerealignedusingestablishedprocedures.JustificationfortheChanePowerdistributioncalculationswithrodmisalignmentsof18steps(18stepsindicated+12stepuncertainty)showthattheincreaseinpeakingfactorswillbeaccommodatedatorbelow85%RTP.Thecalculationsalsoshowedthatabove85%RTP,amisalignmentof18steps(18stepsindicated+12stepsuncertainty)maybeaccommodatediftheAllowablePowerLevel(APL)asdefinedinT/S3.2.6isatleast106$andthemargininF><isatleast4%.LowerlevelsofmisalignmentareallowedforlowerAPLvalues.Theminimummisalignmentof12stepsisallowedwithoutadditionalmargininAPLandF><.ThisanalysisisprovidedinAttachment4.10CFR5092SinificantHazardsConsiderationAnalsisPer10CFR50.92,aproposedamendmenttoanoperatinglicensewillnotinvolveasignificanthazardsconsiderationiftheproposedamendmentsatisfiesthefollowingthreecriteria:Doesnotinvolveasignificantincreaseintheprobabilityorconsequencesofanaccidentpreviouslyanalyzed,2.Doesnotcreatethepossibilityofanewordifferentkindofaccidentfromanyaccidentpreviouslyanalyzedorevaluated,or3.Doesnotinvolveasignificantreductioninamarginofsafety.Criteria1and3AsseeninAttachment4,sufficientmarginexistsinpowerdistributionat85%RTPtoallowforincreasedmisalignment.At100%RTP,increasedmisalignmentisallowedonlyifthereisadequatemargininthepeakingfactors.Therefore,initialconditionsremainunchangedfromthatassumedinthesafetyanalyses.Asfarast'edroppedrodandrodejectionaccidentsareconcerned,theanalyseswereperformedwithconservativeassumptionstoenvelopetheincreasedmisalignment.ItshouldbenotedthatthepowerdependentinsertionlimitforUnit1willbechangedinaconservativemanneratthebeginningofcycle14.Basedonthese Attachment1toAEP:NRC:1182Page3analyses,itisconcludedthattheproposedT/Schangesdonotsignificantlyincreasetheprobabilityorconsequencesofapreviouslyanalyzedaccidentorconstituteasignificantreductioninthemarginofsafety.Criterion2TheproposedT/Schangeswillnotresultinphysicalchangestotheplant.Therefore,webelievethattheproposedT/Schangeswillnotcreatethepossibilityofanewordifferentkindofaccidentfromanypreviouslyevaluated.Also,operationofthereactorwithpossibledeeperrodinsertionwillnotcreatethepossibilityofanewordifferentkindofaccident.Lastly,wenotethattheCommissionhasprovidedguidanceconcerningthedeterminationofsignificanthazardsbyprovidingcertainexamples(48FR14870)ofamendmentsconsiderednotlikelytoinvolvesignificanthazardsconsideration.Thesixthoftheseexamplesreferstochangeswhichmayresultinsomeincreaseintheprobabilityofoccurrenceorintheconsequencesofapreviouslyanalyzedaccident,buttheresultsofwhicharewithinlimitsestablishedasacceptable.Therefore,webelievetheexamplecitedisapplicableandthattheproposedT/Schangesdonotinvolveasignificanthazardsconsiderationasdefinedin10CFR50.92.}}
Sincerely, E.E.Fitzpatrick VicePresident drAttachments cc:A.A.BlindG.CharnoffJ.B.Martin-RegionIIINRCResidentInspector NFEMSectionChiefJ.R.Padgett Dr.T.E.Murley3AEP'NRC:1182 bc:S.J.Brewer-w/oattachment D.H.Malin/G.JohnP.A.Barrett-w/oattachment M.L.Horvath-w/oattachment W.G~Smith,Jr.J.B.Shinnock-w/oattachment J.B.Hickman,NRC-Washington, DCDC-N-6015.1
-w/oattachment AEP'NRC:1182 STATEOFOHIO)COUNTYOFFRANKLIN)
E.E.Fitzpatrick, beingdulysworn,deposesandsaysthatheistheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTECHNICAL SPECIFICATION CHANGEREQUEST'OD MISALIGNMENT REQUIREMENT FORMOVABLECONTROLASSEMBLIES andknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed sndsworntobeforemethis~/dayof19~.NOTARYPUBLICBITINGD.HILLTTOTAPsYPUDLIC.STATEOFOHIO ATTACHMENT 1TOAEP'NRC'1182 DESCRIPTION OFPROPOSEDTECHNICAL SPECIFICATION CHANGESAND10CFR50.92SIGNIFICANT HAZARDSCONSIDERATION ANALYSIS t
Attachment 1toAEP:NRC:1182 Page1DescritionofChanes(bothunits)TheLimitingCondition forOperation inT/S3.1.3.1ischangedtointroduce aterm"allowedrodmisalignment" toreplacetheconstant"+12steps"misalignment givenintheexistingT/S.Also,theLimitingCondition forOperation ischangedtoallow+18stepsmisalignment atorbelow85%ofRatedThermalPower(RTP)andfrom+12stepsto+18stepsmisalignment above85%RTP.Thevalueofallowedrodmisalignment forpowerlevelsgreaterthan85%RTPistobeobtainedfromthenewT/SFigure3.1-4,providedthattheratio(definedasR)ofF>>limitat100%RTPtomaximummeasuredF>Hisgreaterthan1.04.Actionitemsa,bandcarechangedtouse"allowedrodmisalignment" insteadof"+12steps."Surveillance requirement 4.1.3.1.3 isaddedtoprovideforthedetermination oftheallowedrodmisalignment above858RTP.Specifically, thisrequirement statesthattheallowedrodmisalignment forpowerlevelsgreaterthan858RTPshallbedetermined inconjunction withthemeasurement oftheAllowable PowerLevelasspecified inT/S4.2.6.2.2.TheLimitingCondition forOperation inT/S3.1.3.2ischangedtouse"allowedrodmisalignment" insteadof"+12steps"tobeconsistent withT/S3.1.3.1.Actionitemb.landsurveillance requirement 4.1.3.2arealsochangedtouse"allowedrodmisalignment."
3.Figure3.1-4,AllowedRodMisalignment Above85%RTP,isaddedtotheT/S.4~Basesforsection3/4.2.2and3/4.2.3ischangedtospecifyanallowedrodmisalignment of+18stepsatorbelow858RTPandanallowedrodmisalignment of+12stepsto+18stepsabove85$RTP,ReasonfortheChanesExperience withtheAnalogRodPositionIndication (ARPI)Systemhasshownthattheindicated misalignment couldbegreaterthan12steps.AsperT/Sactionitem3.1.3.2.a, anincorefluxmaphastobetakenevery8hours(incorefluxmapsaretakenevery6hourstobeconservative
)toverifytheactuallocationoftherod.Inallcasesthesefluxmapshaveshownthattherewasnoactualrodmisalignment.
ChangingtheT/Sto  
',H Attachment 1toAEP:NRC:1182 Page2allow+18stepsmisalignment willreducetheusageofthefluxmappingsystem.Heavyuseofthefluxmappingsystemmayrequiremoremaintenance workandmaybeanALARAconcern.Furthermore, powertransients (shutdowns) havebeeninitiated asrequiredbytheT/Sswhichwereunnecessary.
Powermaneuvers andfullpoweroperation havealsobeenlimitedduetoARPIindication.
Itshouldbenotedthatifmisaligned rodsaredetected(viachangesinPower,QuadrantTiltorFluxMap)theyarerealigned usingestablished procedures.
Justification fortheChanePowerdistribution calculations withrodmisalignments of18steps(18stepsindicated
+12stepuncertainty) showthattheincreaseinpeakingfactorswillbeaccommodated atorbelow85%RTP.Thecalculations alsoshowedthatabove85%RTP,amisalignment of18steps(18stepsindicated
+12stepsuncertainty) maybeaccommodated iftheAllowable PowerLevel(APL)asdefinedinT/S3.2.6isatleast106$andthemargininF><isatleast4%.Lowerlevelsofmisalignment areallowedforlowerAPLvalues.Theminimummisalignment of12stepsisallowedwithoutadditional margininAPLandF><.ThisanalysisisprovidedinAttachment 4.10CFR5092SinificantHazardsConsideration AnalsisPer10CFR50.92,aproposedamendment toanoperating licensewillnotinvolveasignificant hazardsconsideration iftheproposedamendment satisfies thefollowing threecriteria:
Doesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously
: analyzed, 2.Doesnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously analyzedorevaluated, or3.Doesnotinvolveasignificant reduction inamarginofsafety.Criteria1and3AsseeninAttachment 4,sufficient marginexistsinpowerdistribution at85%RTPtoallowforincreased misalignment.
At100%RTP,increased misalignment isallowedonlyifthereisadequatemargininthepeakingfactors.Therefore, initialconditions remainunchanged fromthatassumedinthesafetyanalyses.
Asfarast'edroppedrodandrodejectionaccidents areconcerned, theanalyseswereperformed withconservative assumptions toenvelopetheincreased misalignment.
Itshouldbenotedthatthepowerdependent insertion limitforUnit1willbechangedinaconservative manneratthebeginning ofcycle14.Basedonthese Attachment 1toAEP:NRC:1182 Page3analyses, itisconcluded thattheproposedT/Schangesdonotsignificantly increasetheprobability orconsequences ofapreviously analyzedaccidentorconstitute asignificant reduction inthemarginofsafety.Criterion 2TheproposedT/Schangeswillnotresultinphysicalchangestotheplant.Therefore, webelievethattheproposedT/Schangeswillnotcreatethepossibility ofanewordifferent kindofaccidentfromanypreviously evaluated.
Also,operation ofthereactorwithpossibledeeperrodinsertion willnotcreatethepossibility ofanewordifferent kindofaccident.
Lastly,wenotethattheCommission hasprovidedguidanceconcerning thedetermination ofsignificant hazardsbyproviding certainexamples(48FR14870)ofamendments considered notlikelytoinvolvesignificant hazardsconsideration.
Thesixthoftheseexamplesreferstochangeswhichmayresultinsomeincreaseintheprobability ofoccurrence orintheconsequences ofapreviously analyzedaccident, buttheresultsofwhicharewithinlimitsestablished asacceptable.
Therefore, webelievetheexamplecitedisapplicable andthattheproposedT/Schangesdonotinvolveasignificant hazardsconsideration asdefinedin10CFR50.92.}}

Revision as of 07:14, 29 June 2018

Application for Amends to Licenses DPR-58 & DPR-74,changing TS 3/4.1.3 to Increase Limit for Control Rod Misalignment at or Below 85% Rated Thermal Power. Control Rod Misalignment Analysis Encl
ML17331B193
Person / Time
Site: Cook  American Electric Power icon.png
Issue date: 01/17/1994
From: FITZPATRICK E
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To: MURLEY T E
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17331B194 List:
References
AEP:NRC:1182, NUDOCS 9401270035
Download: ML17331B193 (12)
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Text

'CCELERATED DISTRIBUTION DEMONSITIONSYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)DOCKET0500031505000316DISTRIBUTION CODEA001DCOPIESRECEIVEDLTRENCLSIZE:TITLE:ORSubmittal:

GeneralDistribution ACCESSION NBR:9401270035 DOC.DATE:

94/01/17NOTAR1ZED:

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

IndianaMichiganPowerCo.(formerly In'a@a6iciganEleRECIP.NAME RECIPIENT AFFILIATION f'MURLEY,T.E.

DocumentControlBranch(Document ControlDesk)~~~I

SUBJECT:

Application foramendstolicensesDPR-586DPR-74,changing TS3/4.1.3toincreaselimitforcontrolrodmisalignment atorbelow85~ratedthermalpower."ControlRodMisalignment Analysis" encl.SNOTES:RECIPIENT IDCODE/NAME PD3-1LAHICKMAN,J COPIESLTTRENCL1122RECIPIENT IDCODE/NAME PD3-1PDCOPIESLTTRENCL11ADDINTERNAL:

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

NRCPDR111111111011NRR/DORS/OTS BNRR/DRPWNRR/DSSA/SRXB OCCBE8-...M.LK~

01NSIC111111101111DANOTETOALL"RIDS"RECIPIENTS:

1'LEASEHELPUSTOREDUCEWAS'ONTACT THEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISISFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR16ENCL14D IndianaMichiganPowerCompanyP.O.Box16631Columbus, OH43216RAEP:NRC:1182 DonaldC.CookNuclearPlantUnits1and2DocketNos.50-315and50-316LicenseNos.DPR-58andDPR-74TECHNICAL SPECIFICATION CHANGEREQUESTRODMISALIGNMENT REQUIREMENT FORMOVABLECONTROLASSEMBLIES U.S.NuclearRegulatory Commission DocumentControlDeskWashington, DAC.20555Attn:Dr.T.E.MurleyJanuary17,1994

DearDr.Murley:

Thisletteranditsattachments constitute anapplication foramendment totheTechnical Specifications (T/S)fortheDonaldC.CookNuclearPlantUnits1and2.Specifically, weareproposing tochangeT/S3/4.1.3forbothunits.ThesechangesincreasetheT/Slimitforcontrolrodmisalignment atorbelow85%RatedThermalPower.ThechangesalsoincreasetheT/Slimitforcontrolrodmisalignment above85$RatedThermalPowerifthereissufficient marginintheHeatFlux(Fo(Z))andtheNuclearEnthalpy(F>H)HotChannelFactors.IAdescription oftheproposedchangesandouranalysisconcerning significant hazardsconsideration pursuantto10CFR50.92arecontained inAttachment l.Attachment 2containstheexistingT/Spagesmarkedtoreflectproposedchanges.Attachment 3containstheproposed, revisedT/Spages.Attachment 4containstheanalysestosupporttheT/Schanges.WebelievethattheproposedT/Schangeswillnotresultin(1)asignificant changeintheamountofanyeffluents thatmaybereleasedoffsite,or(2)asignificant increaseinindividual orcumulative occupational radiation exposure.

TheseproposedT/SchangeshavebeenreviewedandapprovedbythePlantNuclearSafetyReviewCommittee andbytheNuclearSafetyandDesignReviewCommittee.

Dr.T.E.Murley2AEP:NRC'1182 Incompliance withtherequirements of10CFR50.91(b)(1),

copiesofthisletteranditsattachments havebeentransmitted toMr.J.R.PadgettoftheMichiganPublicServiceCommission andtheMichiganDepartment ofPublicHealth.Thisletterissubmitted pursuantto10CFR50.30(b)and,assuch,anoathstatement isattached.

Sincerely, E.E.Fitzpatrick VicePresident drAttachments cc:A.A.BlindG.CharnoffJ.B.Martin-RegionIIINRCResidentInspector NFEMSectionChiefJ.R.Padgett Dr.T.E.Murley3AEP'NRC:1182 bc:S.J.Brewer-w/oattachment D.H.Malin/G.JohnP.A.Barrett-w/oattachment M.L.Horvath-w/oattachment W.G~Smith,Jr.J.B.Shinnock-w/oattachment J.B.Hickman,NRC-Washington, DCDC-N-6015.1

-w/oattachment AEP'NRC:1182 STATEOFOHIO)COUNTYOFFRANKLIN)

E.E.Fitzpatrick, beingdulysworn,deposesandsaysthatheistheVicePresident oflicenseeIndianaMichiganPowerCompany,thathehasreadtheforgoingTECHNICAL SPECIFICATION CHANGEREQUEST'OD MISALIGNMENT REQUIREMENT FORMOVABLECONTROLASSEMBLIES andknowsthecontentsthereof;andthatsaidcontentsaretruetothebestofhisknowledge andbelief.Subscribed sndsworntobeforemethis~/dayof19~.NOTARYPUBLICBITINGD.HILLTTOTAPsYPUDLIC.STATEOFOHIO ATTACHMENT 1TOAEP'NRC'1182 DESCRIPTION OFPROPOSEDTECHNICAL SPECIFICATION CHANGESAND10CFR50.92SIGNIFICANT HAZARDSCONSIDERATION ANALYSIS t

Attachment 1toAEP:NRC:1182 Page1DescritionofChanes(bothunits)TheLimitingCondition forOperation inT/S3.1.3.1ischangedtointroduce aterm"allowedrodmisalignment" toreplacetheconstant"+12steps"misalignment givenintheexistingT/S.Also,theLimitingCondition forOperation ischangedtoallow+18stepsmisalignment atorbelow85%ofRatedThermalPower(RTP)andfrom+12stepsto+18stepsmisalignment above85%RTP.Thevalueofallowedrodmisalignment forpowerlevelsgreaterthan85%RTPistobeobtainedfromthenewT/SFigure3.1-4,providedthattheratio(definedasR)ofF>>limitat100%RTPtomaximummeasuredF>Hisgreaterthan1.04.Actionitemsa,bandcarechangedtouse"allowedrodmisalignment" insteadof"+12steps."Surveillance requirement 4.1.3.1.3 isaddedtoprovideforthedetermination oftheallowedrodmisalignment above858RTP.Specifically, thisrequirement statesthattheallowedrodmisalignment forpowerlevelsgreaterthan858RTPshallbedetermined inconjunction withthemeasurement oftheAllowable PowerLevelasspecified inT/S4.2.6.2.2.TheLimitingCondition forOperation inT/S3.1.3.2ischangedtouse"allowedrodmisalignment" insteadof"+12steps"tobeconsistent withT/S3.1.3.1.Actionitemb.landsurveillance requirement 4.1.3.2arealsochangedtouse"allowedrodmisalignment."

3.Figure3.1-4,AllowedRodMisalignment Above85%RTP,isaddedtotheT/S.4~Basesforsection3/4.2.2and3/4.2.3ischangedtospecifyanallowedrodmisalignment of+18stepsatorbelow858RTPandanallowedrodmisalignment of+12stepsto+18stepsabove85$RTP,ReasonfortheChanesExperience withtheAnalogRodPositionIndication (ARPI)Systemhasshownthattheindicated misalignment couldbegreaterthan12steps.AsperT/Sactionitem3.1.3.2.a, anincorefluxmaphastobetakenevery8hours(incorefluxmapsaretakenevery6hourstobeconservative

)toverifytheactuallocationoftherod.Inallcasesthesefluxmapshaveshownthattherewasnoactualrodmisalignment.

ChangingtheT/Sto

',H Attachment 1toAEP:NRC:1182 Page2allow+18stepsmisalignment willreducetheusageofthefluxmappingsystem.Heavyuseofthefluxmappingsystemmayrequiremoremaintenance workandmaybeanALARAconcern.Furthermore, powertransients (shutdowns) havebeeninitiated asrequiredbytheT/Sswhichwereunnecessary.

Powermaneuvers andfullpoweroperation havealsobeenlimitedduetoARPIindication.

Itshouldbenotedthatifmisaligned rodsaredetected(viachangesinPower,QuadrantTiltorFluxMap)theyarerealigned usingestablished procedures.

Justification fortheChanePowerdistribution calculations withrodmisalignments of18steps(18stepsindicated

+12stepuncertainty) showthattheincreaseinpeakingfactorswillbeaccommodated atorbelow85%RTP.Thecalculations alsoshowedthatabove85%RTP,amisalignment of18steps(18stepsindicated

+12stepsuncertainty) maybeaccommodated iftheAllowable PowerLevel(APL)asdefinedinT/S3.2.6isatleast106$andthemargininF><isatleast4%.Lowerlevelsofmisalignment areallowedforlowerAPLvalues.Theminimummisalignment of12stepsisallowedwithoutadditional margininAPLandF><.ThisanalysisisprovidedinAttachment 4.10CFR5092SinificantHazardsConsideration AnalsisPer10CFR50.92,aproposedamendment toanoperating licensewillnotinvolveasignificant hazardsconsideration iftheproposedamendment satisfies thefollowing threecriteria:

Doesnotinvolveasignificant increaseintheprobability orconsequences ofanaccidentpreviously

analyzed, 2.Doesnotcreatethepossibility ofanewordifferent kindofaccidentfromanyaccidentpreviously analyzedorevaluated, or3.Doesnotinvolveasignificant reduction inamarginofsafety.Criteria1and3AsseeninAttachment 4,sufficient marginexistsinpowerdistribution at85%RTPtoallowforincreased misalignment.

At100%RTP,increased misalignment isallowedonlyifthereisadequatemargininthepeakingfactors.Therefore, initialconditions remainunchanged fromthatassumedinthesafetyanalyses.

Asfarast'edroppedrodandrodejectionaccidents areconcerned, theanalyseswereperformed withconservative assumptions toenvelopetheincreased misalignment.

Itshouldbenotedthatthepowerdependent insertion limitforUnit1willbechangedinaconservative manneratthebeginning ofcycle14.Basedonthese Attachment 1toAEP:NRC:1182 Page3analyses, itisconcluded thattheproposedT/Schangesdonotsignificantly increasetheprobability orconsequences ofapreviously analyzedaccidentorconstitute asignificant reduction inthemarginofsafety.Criterion 2TheproposedT/Schangeswillnotresultinphysicalchangestotheplant.Therefore, webelievethattheproposedT/Schangeswillnotcreatethepossibility ofanewordifferent kindofaccidentfromanypreviously evaluated.

Also,operation ofthereactorwithpossibledeeperrodinsertion willnotcreatethepossibility ofanewordifferent kindofaccident.

Lastly,wenotethattheCommission hasprovidedguidanceconcerning thedetermination ofsignificant hazardsbyproviding certainexamples(48FR14870)ofamendments considered notlikelytoinvolvesignificant hazardsconsideration.

Thesixthoftheseexamplesreferstochangeswhichmayresultinsomeincreaseintheprobability ofoccurrence orintheconsequences ofapreviously analyzedaccident, buttheresultsofwhicharewithinlimitsestablished asacceptable.

Therefore, webelievetheexamplecitedisapplicable andthattheproposedT/Schangesdonotinvolveasignificant hazardsconsideration asdefinedin10CFR50.92.

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