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{{Adams
#REDIRECT [[TMI-12-001, Correction of Steam Generator Tube Gap Size.]]
| number = ML12018A147
| issue date = 01/17/2012
| title = Three Mile Island, Unit 1, Correction of Steam Generator Tube Gap Size.
| author name = Jesse M D
| author affiliation = Exelon Nuclear, Exelon Generation Co, LLC
| addressee name =
| addressee affiliation = NRC/Document Control Desk, NRC/NRR
| docket = 05000289
| license number = DPR-050
| contact person =
| case reference number = TMI-12-001, TAC ME7229
| document type = Letter
| page count = 2
| project = TAC:ME7229
| stage = Other
}}
 
=Text=
{{#Wiki_filter:TMI-12-001January17.2012U.S.NuclearRegulatoryCommissionATIN:DocumentControlDeskWashington.DC20555-0001ThreeMileIslandNuclearStation,Unit1RenewedFacilityOperatingLicenseNo.DPR-50NRCDocketNo.50-289
 
==Subject:==
ThreeMileIsland,Unit1"CorrectionofSteamGeneratorTubeGapSize"
 
==Reference:==
LetterfromP.Bamford(U.S.NuclearRegulatoryCommission)toM.J.Pacilio(ExelonGenerationCompany,LLC),'ThreeMileIslandNuclearStation,Unit1SummaryofconferencecallswithExelonGenerationCompany,LLCtodiscuss2011SteamGeneratorTubeInspections(TACNO.ME7229)"datedDecember28,2011ExelonGenerationCompany,LLC(Exelon)personnelhaveidentifiedthatthereferencedDecember28,2011,letter,'ThreeMileIslandNuclearStation,Unit1-SummaryofconferencecallswithExelonGenerationCompany,LLCtodiscuss2011SteamGeneratorTubeInspections(TACNO.ME7229)"incorrectlydocumentedthegapbetweenSteamGenerator(SG)tubesandtheconferencecalldates.Thefirstsentenceofthefirstparagraphinthereferencedletterstated:"OnNovember3,November7,andNovember11,2011,theU.S.NuclearRegulatoryCommission(NRC)staffparticipatedinconferencecallswithExelonGenerationCompany,LLCpersonneltodiscussthesteamgeneratorinspectionactivitiestakingplaceatThreeMileIsland,Unit1duringthe2011refuelingoutage."Thisstatementshouldhaveread:"OnNovember3,November7,andNovember9,2011,theU.S.NuclearRegulatoryCommission(NRC)staffparticipatedinconferencecallswithExelonGenerationCompany,LLCpersonneltodiscussthesteamgeneratorinspectionactivitiestakingplaceatThreeMileIsland,Unit1duringthe2011refuelingoutage."Inaddition,thefinalbulletonpage3oftheenclosuretothereferencedletterstated:"Thelicenseealsoindicatedthatthetubesareincompressionduringoperations(hotconditions)andthatthegapbetweenthetubesis1/8inches."Thisstatementshouldhaveread:"Thelicenseealsoindicatedthatthetubesareincompressionduringoperations(hotconditions)andthatthegapbetweenthetubesis1/4inches."
U.S.NuclearRegulatoryCommissionJanuary17,2012Page2TheerrorsindatesandgapdistancebetweenSGtubesdocumentedinthereferencedDecember28,2011,letterdonotaffecttheperformanceofanyequipment,andhavenoeffectonthehealthandsafetyofthepublic.TheerrorswerediscussedwiththeNRCNRRProjectManageronJanuary5,2012andJanuary12,2012.Asaresultofthosediscussions,itwasdeterminedthatExelonwouldwriteafollow-upletterofclarificationtocorrecttheinformationonthedocket.Shouldyouhaveanyquestionsconcerningthisletter,pleasecontactMs.WendyCroftat(610)765-5726.Respectfully,MichaelD.Director-AffairsExelonGenerationCompany,LLCcc:USNRCRegionI,RegionalAdministratorUSNRCProjectManager,TMI,Unit1USNRCSeniorResidentInspector,TMI,Unit1
}}

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