ML17227A416

Part 21 Rept Re crack-like Indications Found in Three Inch Monel 400 Tee Fitting Supplied by Tioga Pipe Supply Co,Inc. Fabrication Suspended & Metallurgical Exams Conducted.Six Addl Tees Returned to Matl Supplier.Actions Completed

ML17227A416
Person / Time
Site:	Saint Lucie
Issue date:	04/01/1992
From:	BOHLKE W H FLORIDA POWER & LIGHT CO.
To:	NRC
References
REF-PT21-92 NUDOCS 9205130211
Download: ML17227A416 (6)

Text

ACCFLERATEDDUTIONDEMONSTIONSYSTEMREGULATORYINFORMATIONDISTRIBUTIONSYSTEM(RIDS)ACCESSIONNBR:9205130211DOC.DATE:92/04/01NOTARIZED:NOFACIL:50-335St.LuciePlant,Unit1,FloridaPower&Light,Co.AUTH.NAMEAUTHORAFFILIATIONBOHLKE,W.H.FloridaPower6LightCo.RECIP.NAMERECIPIENTAFFILIATIONNRC-NoDetailedAffiliationGiven

SUBJECT:

Part21reptrecrack-likeindicationsfoundinthreeinchMonel400teefittingsuppliedbyTiogaPipeSupplyCo,Inc.Fabricationsuspended6metallurgicalexamsconducted.DISTRIBUTIONCODE:IEISDCOPIESRECEIVED:LTRJENCL0SIZE:TITLE:Part21Rept(50DKT)NOTES:DOCKETg05000335DRECIPIENTIDCODE/NAMEPD2-2LANORRIS,JINTERNAL:AEOD/DSP/ROABNRR/DRIS/RVIB9DRES/DSIR/EIBRGN2RGN4SECYVANDERMELEXTERNAL:INPORECORDCTRNSICSILVERiECOPIESLTTRENCLRECIPIENTIDCODE/NAMEPD2-2PDOEAOGCB11REGFILEOlNlRGN3RGN5NRCPDRCOPIESLTTRENCLDDRDNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR18ENCLADD,IS

~9PRdN:NUCLEARLICENSINGIQTO:NRCOPERATIONSCTR.APRg,$9999:ESAN9999P9910CPR21-REPORTZNOOPDEPECTSANDNONCOMPLIANCEI~NAMEANDADDRESSOPINDIVXDUAMXNPORMZNGNRCM.H.Bohlke,VicePresidentNuclearEngineeringandLicensingFloridaPowerl<<LightCompany(FPL)P.O.Box14000ZunoBeach,FL33408XX~NAMEOPFACILITY/ACTIVITY/BASICCOMPONENTSt.Lucieunits162DocketNos.50-335/3893>>Monel400SocketWeldTeeFittings,ASMESB564HeatCodeMA52623PPLPurchaseOrderNumber90932-92836III~NAMEOPPIRMBUPPLYXNQCOMPONENTTiogaPipeSupplyCompany,Inc.2450MheatsheafLaneP909BOX5997Philadelphia,PA19137XV9NATUREOPDEFECT/SAFETYHASARDA9B.-;<<P0~i"Jcyppgf30PiiPDRgDOCH.8DEFEcT:crack-likeindicationswerefoundina3"Monel400teefittingduringfabricationofareplacementspoolsectionforIntakeCoolingMater(ICÃ)pipingforSt.LuciaUnit1.OnJanuary30,1992,theFPLNuclearDivisionMetallurgicalLaboratoryconcludedthatthematerialoftheforgedteedidnotmeetmechanicalrecpxirementsoftheASIDESB564specificationtowhichthematerialwascertified,nordiditcomparetot'eresultsreportedontheCertifiedMaterialTestReportprovidedbythesupplier.ActualtestresultsontheteeindicatethatthetensilestrengthandelongationdidnotmeetASMESectionII,PartBmaterialspecificationSB564requirements.Improperheattreatmentduringtheforgingprocessisbelievedtobetheprincipalcauseofthedefect.SAFETYHAZARD:Theteefittingwastohavebeeninstalledinthesafety>>relatedQualityGroupCICWSystemaspartoftheICWpumpLubeWaterSystem.Apostulatednon-ductilefailureoftheteecombinedwithfailureofaredundantXCWtrain,underaccidentconditions,couldhaveresultedinlossoftheultimateheat.sink.AsdescribedinVIbelow,noteesofthisheatwereinstalledineitherunit.<<yg040i05000335PDR J

FRQ5I:NLICLEARLICENSINGIGTO:NRCOPERATIONSCTR.APRlF19929:28AM4926P.83VoVI~DATEOPDXSCOVERYOPDEPRCTThedefectwasdiscoveredonJanuary30,1992whentheFPLNuclearDivisionMetallurgicalLaboratoryconcludedthatthematerialwasnotinaccordancewiththematerialspecificationreferencedinXV(A)above.NUMBERANDLOCATIONOPCOMPONENTSNo3"Monel400socketweldteesofthisheatareinstalledinsafety-relatedsystemsateitherSt.LuciaUnits1or2.BoseventeeswerereceivedonFPLPurchaseOrder90932-92836.OneteewasusedinthefabricationdescribedinIV(A)above.Sixadditionalteesofthisheathavebeenreturnedtothematerialsupplier.VII'ORRECTIVEACTXONFabricationwassuspendedandmetallurgicalexaminationaconducted.SixadditionalteesofthesameheathavebeenreturnedbyFPLtothematerialsupplier.Correctiveactioniscomplete.VIZIER0%'HERZNPORJQLTZONFPLwillreportthisinformationontheXNPONUCLEARNETWORKbyApril1,1992.-TiogaPipeSupplyCompanyhasbeeninformedofthisdefect.ThisinitialnotificationbyfacsimilewillbefollowedbyformalwrittennotificationbyApril30,1992.

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