ML18030A112: Difference between revisions

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==DearMr.GriersThisletterservestoconfirminformationprovidedbytelephonetoNRCInspectorMr.R.McGaughybyMr.A.R.SabolofPPaLonApril16,==
==DearMr.GriersThisletterservestoconfirminformationprovidedbytelephonetoNRCInspectorMr.R.McGaughybyMr.A.R.SabolofPPaLonApril16,==
1980.Duringthatconversation,Mr.McGaughywasadvisedthatthesubjectconditionwasunderevaluationforreportabilityundertheprovisionsof10CFR50.55(e).ThedeficiencyresultsfromtheinstallationofsmallpipesupportsontheUnit1containmentlinerplateanddiaphragmslablinerplatewithouthaving,hadthecivildesigngroupreviewthestructuraladequacyofthelinerplatetosupportthehangerloads.Sincethelinerwasdesignedonlytoprovidealeaktightbarrier,preliminaryevaluationindicatesthattheinstallationoftheseaddedsupportshasresultedinlocaloverstressingofthelinerplate.Hadthisdeficiencyremaineduncorrecteditcouldhaveaffectedadverselythesafeoperationoftheplant,anditisthereforedeemedreportableunder10CFR50.55(e).ThisconditionhasbeendocumentedbyBechtelonMCAR1-50,datedApril14r1980.Acorrectiveactionplanisbeingformulatedtoprovideforthereviewandmodificationofanyexistinghangerstoprecludeoverloadingthelinerplateandfortheestablishmentofcriteriatobeusedinthefutureforthedesignofsimilarsmallpipehangers.Sincethedetailsofthisreportprovideinformationrelevanttothereportingrequirementsof10CFR21,thiscorrespondenceisconsideredtoalsodischargeanyformalresponsibilityPPGLmayhaveforreportingincompliancethereto.gerOPENNSYLVANIAPOWER8LIGHTCOMPANY8006000+/I Mr.BoyceH.GrierMay29,1980WeexpecttoissueafinalreportontheconditioninJanuary>1981.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionFLW:mcbcc:Mr.VictorStello(15)Director&fficeofInspection6EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,DirectorOfficeofManagementInformationaProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52ShickshinnyrPennsylvania  
1980.Duringthatconversation,Mr.McGaughywasadvisedthatthesubjectconditionwasunderevaluationforreportabilityundertheprovisionsof10CFR50.55(e).ThedeficiencyresultsfromtheinstallationofsmallpipesupportsontheUnit1containmentlinerplateanddiaphragmslablinerplatewithouthaving,hadthecivildesigngroupreviewthestructuraladequacyofthelinerplatetosupportthehangerloads.Sincethelinerwasdesignedonlytoprovidealeaktightbarrier,preliminaryevaluationindicatesthattheinstallationoftheseaddedsupportshasresultedinlocaloverstressingofthelinerplate.Hadthisdeficiencyremaineduncorrecteditcouldhaveaffectedadverselythesafeoperationoftheplant,anditisthereforedeemedreportableunder10CFR50.55(e).ThisconditionhasbeendocumentedbyBechtelonMCAR1-50,datedApril14r1980.Acorrectiveactionplanisbeingformulatedtoprovideforthereviewandmodificationofanyexistinghangerstoprecludeoverloadingthelinerplateandfortheestablishmentofcriteriatobeusedinthefutureforthedesignofsimilarsmallpipehangers.Sincethedetailsofthisreportprovideinformationrelevanttothereportingrequirementsof10CFR21,thiscorrespondenceisconsideredtoalsodischargeanyformalresponsibilityPPGLmayhaveforreportingincompliancethereto.gerOPENNSYLVANIAPOWER8LIGHTCOMPANY8006000+/I Mr.BoyceH.GrierMay29,1980WeexpecttoissueafinalreportontheconditioninJanuary>1981.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionFLW:mcbcc:Mr.VictorStello(15)Director&fficeofInspection6EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,DirectorOfficeofManagementInformationaProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52ShickshinnyrPennsylvania}}
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Revision as of 00:50, 18 May 2018

Interim Deficiency Rept Re Pipe Supports to Containment Liner Plate.Installation of Supports W/O Having Civil Design Group Review Structural Adequacy Resulted in Overstressing Liner Plate
ML18030A112
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 05/29/1980
From: CURTIS N W
PENNSYLVANIA POWER & LIGHT CO.
To:
References
840-4-900-10, NUDOCS 8006090311
Download: ML18030A112 (3)


Text

REGULATORYINFORMATIONDISTRIBUTIONSYSTFM(RIOS)pauliACCESSIONNBR:8006090311DOCSDATE:80/05/29NOTARIZFD:NODOCKET¹FACIL:SO3usquehannaSteamElectricStationiUnitiiPennsylva0500038738squenannaSteamElectricStationiUnit2iPennsylva05000388AU)~AUTHORAFFILIATIONCUNTISgN~5~PennsylvaniaPower8LightCo~RECIP,NAMERECIPIENTAFFILIATION

SUBJECT:

Interimdeficiencyreptrepipesupportstocontainmentline~plate~Installationofsupportsw/ohavingcivildesigngroupreviewstructuraladequacyresultedinoverstressinglinerplate~DISTRIBUTIONCODE:8019SCOPIESRECEIVED:LTRQENCL+SIZE:TITLE.:ConstructionDeficiencyReport(10CFR50~55E)NOTES:S~il/~RECIPIENTCOPIESIDCODE/NAMELTTRENCLACTION:14P<<WuV'E'<20LAL.4cJgINTERNAL;1REGFIL08MPA10QAB13FIELDCOOR/IE17AOPLANTSYS22DIRDPMAO/RCI/IEAEODGEOSCIENCESBRI8CSYSBRMECHENGBRSTRUCTENGBRRECIPIENTIO-CODK/NAME15BCLcm~4821AOQ~g02NRCPOR07EDO8STAFF09OEPYDIRDPM11STANORDSOKV16AOFORENGR17AD/CORESCON>T23GELDAD/SITETECHDIRECTOROSEHANAUKRiS~MATLENGBRPOHERSYS8RCOPIESLTTRENCLEXTERNAL:03LPOR24ACRS116104NSICJUyg019800TOTALNUMBEROFCOPIESREQUIREDLTTR48ENCL TWONORTHNINTHSTREET.ALLENTOWN,PA.I8'IOI'HONE:(2IS)821-SISINORMANW.CURTISVicePresideni-Engineering&Ccnstructen82I-5381May29,1980Mr.BoyceH.GrierDirector,RegionIU.S.NuclearRegulatoryCommission631ParkAvenueKingofPrussia,Pennsylvania19406SUSQUEHANNASTEAMELECTRICSTATZONINTERIMREPORTOFADEFICIENCYONPIPESUPPORTSWELDEDTOTHECONTAINMENTLINERPLATEERs100450/100508FILE840-4/900-10PLA-489

DearMr.GriersThisletterservestoconfirminformationprovidedbytelephonetoNRCInspectorMr.R.McGaughybyMr.A.R.SabolofPPaLonApril16,

1980.Duringthatconversation,Mr.McGaughywasadvisedthatthesubjectconditionwasunderevaluationforreportabilityundertheprovisionsof10CFR50.55(e).ThedeficiencyresultsfromtheinstallationofsmallpipesupportsontheUnit1containmentlinerplateanddiaphragmslablinerplatewithouthaving,hadthecivildesigngroupreviewthestructuraladequacyofthelinerplatetosupportthehangerloads.Sincethelinerwasdesignedonlytoprovidealeaktightbarrier,preliminaryevaluationindicatesthattheinstallationoftheseaddedsupportshasresultedinlocaloverstressingofthelinerplate.Hadthisdeficiencyremaineduncorrecteditcouldhaveaffectedadverselythesafeoperationoftheplant,anditisthereforedeemedreportableunder10CFR50.55(e).ThisconditionhasbeendocumentedbyBechtelonMCAR1-50,datedApril14r1980.Acorrectiveactionplanisbeingformulatedtoprovideforthereviewandmodificationofanyexistinghangerstoprecludeoverloadingthelinerplateandfortheestablishmentofcriteriatobeusedinthefutureforthedesignofsimilarsmallpipehangers.Sincethedetailsofthisreportprovideinformationrelevanttothereportingrequirementsof10CFR21,thiscorrespondenceisconsideredtoalsodischargeanyformalresponsibilityPPGLmayhaveforreportingincompliancethereto.gerOPENNSYLVANIAPOWER8LIGHTCOMPANY8006000+/I Mr.BoyceH.GrierMay29,1980WeexpecttoissueafinalreportontheconditioninJanuary>1981.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionFLW:mcbcc:Mr.VictorStello(15)Director&fficeofInspection6EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,DirectorOfficeofManagementInformationaProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52ShickshinnyrPennsylvania