ML17227A416

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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 NextEra Energy icon.png
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

ACCFLERATED DUTIONDEMONSTIONSYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9205130211 DOC.DATE:

92/04/01NOTARIZED:

NOFACIL:50-335 St.LuciePlant,Unit1,FloridaPower&Light,Co.AUTH.NAMEAUTHORAFFILIATION BOHLKE,W.H.

FloridaPower6LightCo.RECIP.NAME RECIPIENT AFFILIATION NRC-NoDetailedAffiliation Given

SUBJECT:

Part21reptrecrack-like indications foundinthreeinchMonel400teefittingsuppliedbyTiogaPipeSupplyCo,Inc.Fabrication suspended 6metallurgical examsconducted.

DISTRIBUTION CODE:IEISDCOPIESRECEIVED:LTR JENCL0SIZE:TITLE:Part21Rept(50DKT)NOTES:DOCKETg05000335DRECIPIENT IDCODE/NAME PD2-2LANORRIS,JINTERNAL:

AEOD/DSP/ROAB NRR/DRIS/RVI B9DRES/DSIR/EIB RGN2RGN4SECYVANDERMEL EXTERNAL:

INPORECORDCTRNSICSILVERiECOPIESLTTRENCLRECIPIENT IDCODE/NAME PD2-2PDOEAOGCB11REGFILEOlNlRGN3RGN5NRCPDRCOPIESLTTRENCLDDRDNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR18ENCLADD,IS

~9PRdN:NUCLEAR LICENSINGIQ TO:NRCOPERATIONS CTR.APRg,$9999:ESAN9999P9910CPR21-REPORTZNO OPDEPECTSANDNONCOMPLIANCE I~NAMEANDADDRESSOPINDIVXDUAM XNPORMZNG NRCM.H.Bohlke,VicePresident NuclearEngineering andLicensing FloridaPowerl<<LightCompany(FPL)P.O.Box14000ZunoBeach,FL33408XX~NAMEOPFACILITY/ACTIVITY/BASIC COMPONENT St.Lucieunits162DocketNos.50-335/389 3>>Monel400SocketWeldTeeFittings, ASMESB564HeatCodeMA52623PPLPurchaseOrderNumber90932-92836 III~NAMEOPPIRMBUPPLYXNQ COMPONENT TiogaPipeSupplyCompany,Inc.

2450Mheatsheaf LaneP909BOX5997Philadelphia, PA19137XV9NATUREOPDEFECT/SAFETY HASARDA9B.-;<<P0~i"Jcyppgf30Pii PDRgDOCH.8DEFEcT:crack-like indications werefoundina3"Monel400teefittingduringfabrication ofareplacement spoolsectionforIntakeCoolingMater(ICÃ)pipingforSt.LuciaUnit1.OnJanuary30,1992,theFPLNuclearDivisionMetallurgical Laboratory concluded thatthematerialoftheforgedteedidnotmeetmechanical recpxirements oftheASIDESB564specification towhichthematerialwascertified, nordiditcomparetot'eresultsreportedontheCertified MaterialTestReportprovidedbythesupplier.

Actualtestresultsontheteeindicatethatthetensilestrengthandelongation didnotmeetASMESectionII,PartBmaterialspecification SB564requirements.

Improperheattreatment duringtheforgingprocessisbelievedtobetheprincipal causeofthedefect.SAFETYHAZARD:Theteefittingwastohavebeeninstalled inthesafety>>related QualityGroupCICWSystemaspartoftheICWpumpLubeWaterSystem.Apostulated non-ductile failureoftheteecombinedwithfailureofaredundant XCWtrain,underaccidentconditions, couldhaveresultedinlossoftheultimateheat.sink.Asdescribed inVIbelow,noteesofthisheatwereinstalled ineitherunit.<<yg040i05000335PDR J

FRQ5I:NLICLEAR LICENSINGIG TO:NRCOPERATIONS CTR.APRlF19929:28AM4926P.83VoVI~DATEOPDXSCOVERY OPDEPRCTThedefectwasdiscovered onJanuary30,1992whentheFPLNuclearDivisionMetallurgical Laboratory concluded thatthematerialwasnotinaccordance withthematerialspecification referenced inXV(A)above.NUMBERANDLOCATIONOPCOMPONENTS No3"Monel400socketweldteesofthisheatareinstalled insafety-related systemsateitherSt.LuciaUnits1or2.BoseventeeswerereceivedonFPLPurchaseOrder90932-92836.

Oneteewasusedinthefabrication described inIV(A)above.Sixadditional teesofthisheathavebeenreturnedtothematerialsupplier.

VII'ORRECTIVE ACTXONFabrication wassuspended andmetallurgical examinationa conducted.

Sixadditional teesofthesameheathavebeenreturnedbyFPLtothematerialsupplier.

Corrective actioniscomplete.

VIZIER0%'HERZNPORJQLTZON FPLwillreportthisinformation ontheXNPONUCLEARNETWORKbyApril1,1992.-TiogaPipeSupplyCompanyhasbeeninformedofthisdefect.Thisinitialnotification byfacsimile willbefollowedbyformalwrittennotification byApril30,1992.

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