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==DearMr.Grier:==
==DearMr.Grier:==
ThissupplementsourlettersPLA-202datedDecember1,1977,PLA-239datedApril6,1978,andPLA-316datedFebruary2,1979andrepresentsthefinalreportrelativetothesubjectdeficiencywhichwasreportedundertheprovisionsof10CFR50.55(e).ThedeficiencyinvolveddimensionallyundersizedweldsonsafetyrelatedpipehangersfabricatedfortheSusquehannaSteamElectricStationbyITTGrinnell,Warren,Ohioundex'echtelPurchaseOrder8856-P-3.Thenonconformingconditionsrepresentedadeviationfromhangerdetaileddesigndrawingsandrequiredanextensiveevaluationofthe"as-fabricated"undersizedwelds.Investigationoftheproblemrevealedthattheproblemresulted,inpart,fromthefactthatthespecificationforshopfabricationofhangers(8856-M-209)lackedspecificcriteriafortheacceptance/refectionofwelds.Thissituationwascorrectedwhen,onOctober18,1977,Revision11ofP.O.8856-P-3wastransmittedtothesupplierandpxovidedarevisedSpecification8856-M-.209whichincludedappropx'iateinspectionacceptancecriteria.Havingestablishedthenecessaryinspectioncriteriaforfutureproductionofpipehangers,anextensivereinspectionprogramforallhangersproducedbyITTGrinnellpriortoOctober18,1977wasinstitutedbyBechtelOCattheSSESconstructionsiteonDecember1,1977andwasdevisedtopreventthe'b'sgPENNSYLVANIAPOWER8LIGHTCOMPANY<90~%gN~g Mr.BoyceH.GrierApril6,1979installationofnonconforminghangers;toverifythesupplier'scompliancetothenewfabricationandinspectionrequirements;andtoprovideorderlycontrolsforcontinuingconstructioninstallationactivities.VisualinspectionsbyBechtelQCconfirmedtheacceptabilityofallQ-listedhangersshippedbyITTGrinnellafter10/18/77.OnDecember12,1977,theBechtelinspectioneffortwasdirectedtowardsallhangersatSSESwhichhadbeenfabricatedpriortotheOctober18,1977date.AllweldsonpipesupportsandhangercomponentswereexaminedbyBechtelinaccordancewithArticle9ofASMEB&PVCodeSectionV-1971andthefollowingANSIStandardB31.1visualacceptancecriteria:~Unacceptableindications(1)Cracks-externalsurface.(2)Undercutonsurfacewhichisgreaterthan1/32inchdeep.(3)WeldreinforcementgreaterthanthatspecifiedinatableinPara.127.4.2oftheANSIB31.1Standard.(4)Lackoffusiononsurface.(5)Incompletepenetration(appliesonlywheninsidesurfaceisreadilyaccessible).~FilletweldminimumdimensionsasspecifiedinANSIB31.1-1973.Asnecessary,duringtheBechtelinspectioneffort,whichwasundertakenon12/12/77andconcludedon3/15/78,weldswhichdidnotmeetspecificationrequirementswerereworked.OnMarch15,1978BechtelQCconcludedtheprimaryinspectionfunctionandITT-Grinnellquality'ontrolpersonnelassumedtheinspectionfunctionon-siteemployingthesame(Bechtel)visualinspectionacceptancecriteria.Priortoinitiatingtheinspections,Grinnell'sQCProgramwassubmittedtoandapprovedbyBechtelEngineering.AttheoutsetofITT-Grinnell'sinspectioneffort,BechtelQCheldapreparatorymeetingwithITT-GrinnellandestablishedBechtelQCsurveillances,reviewsandwitnessandholdpoints.(BechtelQCdocumentsitsactivitiesonFieldInspectionReportswhicharepreparedweekly.)Thereisacomputerlistingofpipehangerswhichhasbeenmodifiedtoprovidearecordofallthesafety-relatedpipehangersaffected.Thelistingprovidescolumnsdesignatingthehangerswhich,asdeterminedbytheBechtelsurvey,havebeenjudgedacceptableorhavebeendesignatedasrequiringrework.Theserecordshavebeenupdatedtoreflectwhererework'asaccomplishedandthestatusoftheacceptabilityoftheweldsaffected.Theserecordsreflecttheinterim(12/1/77to3/15/78)Bechtelinspectionandreworkeffort.
ThissupplementsourlettersPLA-202datedDecember1,1977,PLA-239datedApril6,1978,andPLA-316datedFebruary2,1979andrepresentsthefinalreportrelativetothesubjectdeficiencywhichwasreportedundertheprovisionsof10CFR50.55(e).ThedeficiencyinvolveddimensionallyundersizedweldsonsafetyrelatedpipehangersfabricatedfortheSusquehannaSteamElectricStationbyITTGrinnell,Warren,Ohioundex'echtelPurchaseOrder8856-P-3.Thenonconformingconditionsrepresentedadeviationfromhangerdetaileddesigndrawingsandrequiredanextensiveevaluationofthe"as-fabricated"undersizedwelds.Investigationoftheproblemrevealedthattheproblemresulted,inpart,fromthefactthatthespecificationforshopfabricationofhangers(8856-M-209)lackedspecificcriteriafortheacceptance/refectionofwelds.Thissituationwascorrectedwhen,onOctober18,1977,Revision11ofP.O.8856-P-3wastransmittedtothesupplierandpxovidedarevisedSpecification8856-M-.209whichincludedappropx'iateinspectionacceptancecriteria.Havingestablishedthenecessaryinspectioncriteriaforfutureproductionofpipehangers,anextensivereinspectionprogramforallhangersproducedbyITTGrinnellpriortoOctober18,1977wasinstitutedbyBechtelOCattheSSESconstructionsiteonDecember1,1977andwasdevisedtopreventthe'b'sgPENNSYLVANIAPOWER8LIGHTCOMPANY<90~%gN~g Mr.BoyceH.GrierApril6,1979installationofnonconforminghangers;toverifythesupplier'scompliancetothenewfabricationandinspectionrequirements;andtoprovideorderlycontrolsforcontinuingconstructioninstallationactivities.VisualinspectionsbyBechtelQCconfirmedtheacceptabilityofallQ-listedhangersshippedbyITTGrinnellafter10/18/77.OnDecember12,1977,theBechtelinspectioneffortwasdirectedtowardsallhangersatSSESwhichhadbeenfabricatedpriortotheOctober18,1977date.AllweldsonpipesupportsandhangercomponentswereexaminedbyBechtelinaccordancewithArticle9ofASMEB&PVCodeSectionV-1971andthefollowingANSIStandardB31.1visualacceptancecriteria:~Unacceptableindications(1)Cracks-externalsurface.(2)Undercutonsurfacewhichisgreaterthan1/32inchdeep.(3)WeldreinforcementgreaterthanthatspecifiedinatableinPara.127.4.2oftheANSIB31.1Standard.(4)Lackoffusiononsurface.(5)Incompletepenetration(appliesonlywheninsidesurfaceisreadilyaccessible).~FilletweldminimumdimensionsasspecifiedinANSIB31.1-1973.Asnecessary,duringtheBechtelinspectioneffort,whichwasundertakenon12/12/77andconcludedon3/15/78,weldswhichdidnotmeetspecificationrequirementswerereworked.OnMarch15,1978BechtelQCconcludedtheprimaryinspectionfunctionandITT-Grinnellquality'ontrolpersonnelassumedtheinspectionfunctionon-siteemployingthesame(Bechtel)visualinspectionacceptancecriteria.Priortoinitiatingtheinspections,Grinnell'sQCProgramwassubmittedtoandapprovedbyBechtelEngineering.AttheoutsetofITT-Grinnell'sinspectioneffort,BechtelQCheldapreparatorymeetingwithITT-GrinnellandestablishedBechtelQCsurveillances,reviewsandwitnessandholdpoints.(BechtelQCdocumentsitsactivitiesonFieldInspectionReportswhicharepreparedweekly.)Thereisacomputerlistingofpipehangerswhichhasbeenmodifiedtoprovidearecordofallthesafety-relatedpipehangersaffected.Thelistingprovidescolumnsdesignatingthehangerswhich,asdeterminedbytheBechtelsurvey,havebeenjudgedacceptableorhavebeendesignatedasrequiringrework.Theserecordshavebeenupdatedtoreflectwhererework'asaccomplishedandthestatusoftheacceptabilityoftheweldsaffected.Theserecordsreflecttheinterim(12/1/77to3/15/78)Bechtelinspectionandreworkeffort.
Mr.BoyceH.GrierApril6,1979RecordsofITT-Grinnell'sactivitiesaremaintainedinaccordancewithitsQCProgram.TherecordsofBechtelandITT-Grinnellinspectionsarebeingkeptasseparatedocuments.Bothsetsofrecordscontainsimilarpertinentinformation.Inconjunctionwithitsinspectioneffort,ITT-Grinnellpreparedtheattachedreportoftheresults.andananalysistoverifytheadequacyoftheSusquehannaProject'shangerswhichwerefabricatedbyITTGrinnellinthefulfillmentofBechtelPurchaseOrderi/8856-P ACRev.12.ThisreporthasbeenreviewedandacceptedbyBechtelEngineeringwhohavestated:"InsummarytheconclusionsofthereportsubstantiatetheadequacyoftheQ-Listedhangersinquestionbecause:(a)AllQ-Listedhangersshippedpriorto10/18/77wereinspectedforundersizedweldsaswellasforcompliancewiththerevisedspecificationrequirementsforvisualweldacceptancecriteria.(b)AllQ-Listedhangerswithundersizedweldswereanalyzedinthe"as-fabricated"conditiontodeterminestresslevelsoftheundersizedwelds.(c)NoneoftheQ-Listedhangerswithundersizedweldswerefoundtohaveweldstressesthatexceededtheagreeduponallowables.(d)TheITTWrinnellanalysisoftheundersizedweldsintheQ-Listedhangershasdemonstratedthatthisconditiondoesnotpresentasafetyhazardbecausenoneoftheweldswereover-stressed."Presently,hangersinfabricationatthesupplier'splant~beingproducedinaccordancewithBechtelSpecification8856-M-209,Rev.7,areofacceptablequality.Wethereforeconcludethatadditionalcorrectivemeasurestoprecluderecurrencearenotnecessary.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionARS:mcbcc:Mr.J.G.Davis(15)ActingDirector-OfficeofInspection&EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,Director(1)OfficeofManagementInformation&ProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52Shickshinny;PA18655  
Mr.BoyceH.GrierApril6,1979RecordsofITT-Grinnell'sactivitiesaremaintainedinaccordancewithitsQCProgram.TherecordsofBechtelandITT-Grinnellinspectionsarebeingkeptasseparatedocuments.Bothsetsofrecordscontainsimilarpertinentinformation.Inconjunctionwithitsinspectioneffort,ITT-Grinnellpreparedtheattachedreportoftheresults.andananalysistoverifytheadequacyoftheSusquehannaProject'shangerswhichwerefabricatedbyITTGrinnellinthefulfillmentofBechtelPurchaseOrderi/8856-P-3-ACRev.12.ThisreporthasbeenreviewedandacceptedbyBechtelEngineeringwhohavestated:"InsummarytheconclusionsofthereportsubstantiatetheadequacyoftheQ-Listedhangersinquestionbecause:(a)AllQ-Listedhangersshippedpriorto10/18/77wereinspectedforundersizedweldsaswellasforcompliancewiththerevisedspecificationrequirementsforvisualweldacceptancecriteria.(b)AllQ-Listedhangerswithundersizedweldswereanalyzedinthe"as-fabricated"conditiontodeterminestresslevelsoftheundersizedwelds.(c)NoneoftheQ-Listedhangerswithundersizedweldswerefoundtohaveweldstressesthatexceededtheagreeduponallowables.(d)TheITTWrinnellanalysisoftheundersizedweldsintheQ-Listedhangershasdemonstratedthatthisconditiondoesnotpresentasafetyhazardbecausenoneoftheweldswereover-stressed."Presently,hangersinfabricationatthesupplier'splant~beingproducedinaccordancewithBechtelSpecification8856-M-209,Rev.7,areofacceptablequality.Wethereforeconcludethatadditionalcorrectivemeasurestoprecluderecurrencearenotnecessary.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionARS:mcbcc:Mr.J.G.Davis(15)ActingDirector-OfficeofInspection&EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,Director(1)OfficeofManagementInformation&ProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52Shickshinny;PA18655  
}}
}}

Revision as of 21:54, 1 May 2018

Forwards Final Rept of Undersized Welds on safety-related Pipe Hangers
ML18031A162
Person / Time
Site: Susquehanna  Talen Energy icon.png
Issue date: 04/06/1979
From: CURTIS N W
PENNSYLVANIA POWER & LIGHT CO.
To: GRIER B H
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML17138A569 List:
References
NUDOCS 7904120263
Download: ML18031A162 (5)
v • d • e


Text

.0REGULATORYliVFORMATIONDISTHIOUTIONSYSTEM(RIPS)ACCESSIONIVBRo7904120263DOC~DAI'Eo79/04/06NOTARIZED<NODOCKETFAGIL:50387SUSQUEHANNASTEAMELECTRICSTATIONUiVIT1PEtVNSYLVA05000350-388SUSQUE<AiutuASTEAMELECTRICSTATIONUNIT2PENNSYLVA05008AUTH~NAtlFAUTHORAFFILIASIONCURTISFN~'TBT'PFNiNSYLVANIAPOWERttLIGHTCO~HECIP,iVAMEHECIPIENTAFFILIATIONGRIEHFB~H~REGION1PHILADELPHIAOFFICEOFTHEDIRECTOR

SUBJECT:

FORWARDSFlNALHEPTUf:UNDERSIZED'r'ELDSONSAFETYRELATEDPIPEHANGFHS~8,g0-s8'7DISTRIBUTIONCOOK:BDINSCOPIESREEIVES:LfENCLJSIZE:5+~~TITLE:CONSTRUCTIONDEFICIENCYREPORT(IOCFN50~555)~NOTES:+~D5+~>~CgF5'Rlt'&TOTS~RECIPIENTIOCODE/NAMEACTION:14PtlH<p46fZ.20LACEE)gINTERNAL:005IHE08tlPA10QAB12JDROANtE/IE16AOFORENGR17AOREACSFTY22DIRDPMEXTERNAL:03LPOR24ACRSCOPIESLTTHENCL11122111111111111116lbRECIPIENrIDCODE/NAME15BCtF@legAD<MMc.cO02NHCPDR07EOO8STAFF09OEPYOIRDPM11STANORDSOFV13FIELDCOOR/IE17AOPLANTSYS19ADSYS/PROJ23OELD04NSICCOPIESLTTRENCL11111111111111111<PR181gggTOTALIVUMt3EROFCOPIESREQUIRED:LTTR39ENCL39

TWONORTHNINTHSTREET,ALLENTOWN,PA.18101PHONE:(215)8215151NORMANW.CURTISVicePresidentEngineerin8ILCcnstrtrcticn821-5381April6,1979RECULATQi<'(DxitgFiLEgopy.Mr.BoyceH.GrierDirector,RegionIU.S.NuclearRegulatoryCommission631ParkAvenueKingofPrussia,Pennsylvania17406SUSQUEiQuQlASTEAMELECTRICSTATIONFINALREPORTOFUNDERSIZEDWELDSONSAFETYRELATEDPIPEHANGERSDOCKETNOS:50-387/50>>388LICENSENOS:CPPR-101/CPPR-102ERs100450/100508FILE840-4PLA-343

DearMr.Grier:

ThissupplementsourlettersPLA-202datedDecember1,1977,PLA-239datedApril6,1978,andPLA-316datedFebruary2,1979andrepresentsthefinalreportrelativetothesubjectdeficiencywhichwasreportedundertheprovisionsof10CFR50.55(e).ThedeficiencyinvolveddimensionallyundersizedweldsonsafetyrelatedpipehangersfabricatedfortheSusquehannaSteamElectricStationbyITTGrinnell,Warren,Ohioundex'echtelPurchaseOrder8856-P-3.Thenonconformingconditionsrepresentedadeviationfromhangerdetaileddesigndrawingsandrequiredanextensiveevaluationofthe"as-fabricated"undersizedwelds.Investigationoftheproblemrevealedthattheproblemresulted,inpart,fromthefactthatthespecificationforshopfabricationofhangers(8856-M-209)lackedspecificcriteriafortheacceptance/refectionofwelds.Thissituationwascorrectedwhen,onOctober18,1977,Revision11ofP.O.8856-P-3wastransmittedtothesupplierandpxovidedarevisedSpecification8856-M-.209whichincludedappropx'iateinspectionacceptancecriteria.Havingestablishedthenecessaryinspectioncriteriaforfutureproductionofpipehangers,anextensivereinspectionprogramforallhangersproducedbyITTGrinnellpriortoOctober18,1977wasinstitutedbyBechtelOCattheSSESconstructionsiteonDecember1,1977andwasdevisedtopreventthe'b'sgPENNSYLVANIAPOWER8LIGHTCOMPANY<90~%gN~g Mr.BoyceH.GrierApril6,1979installationofnonconforminghangers;toverifythesupplier'scompliancetothenewfabricationandinspectionrequirements;andtoprovideorderlycontrolsforcontinuingconstructioninstallationactivities.VisualinspectionsbyBechtelQCconfirmedtheacceptabilityofallQ-listedhangersshippedbyITTGrinnellafter10/18/77.OnDecember12,1977,theBechtelinspectioneffortwasdirectedtowardsallhangersatSSESwhichhadbeenfabricatedpriortotheOctober18,1977date.AllweldsonpipesupportsandhangercomponentswereexaminedbyBechtelinaccordancewithArticle9ofASMEB&PVCodeSectionV-1971andthefollowingANSIStandardB31.1visualacceptancecriteria:~Unacceptableindications(1)Cracks-externalsurface.(2)Undercutonsurfacewhichisgreaterthan1/32inchdeep.(3)WeldreinforcementgreaterthanthatspecifiedinatableinPara.127.4.2oftheANSIB31.1Standard.(4)Lackoffusiononsurface.(5)Incompletepenetration(appliesonlywheninsidesurfaceisreadilyaccessible).~FilletweldminimumdimensionsasspecifiedinANSIB31.1-1973.Asnecessary,duringtheBechtelinspectioneffort,whichwasundertakenon12/12/77andconcludedon3/15/78,weldswhichdidnotmeetspecificationrequirementswerereworked.OnMarch15,1978BechtelQCconcludedtheprimaryinspectionfunctionandITT-Grinnellquality'ontrolpersonnelassumedtheinspectionfunctionon-siteemployingthesame(Bechtel)visualinspectionacceptancecriteria.Priortoinitiatingtheinspections,Grinnell'sQCProgramwassubmittedtoandapprovedbyBechtelEngineering.AttheoutsetofITT-Grinnell'sinspectioneffort,BechtelQCheldapreparatorymeetingwithITT-GrinnellandestablishedBechtelQCsurveillances,reviewsandwitnessandholdpoints.(BechtelQCdocumentsitsactivitiesonFieldInspectionReportswhicharepreparedweekly.)Thereisacomputerlistingofpipehangerswhichhasbeenmodifiedtoprovidearecordofallthesafety-relatedpipehangersaffected.Thelistingprovidescolumnsdesignatingthehangerswhich,asdeterminedbytheBechtelsurvey,havebeenjudgedacceptableorhavebeendesignatedasrequiringrework.Theserecordshavebeenupdatedtoreflectwhererework'asaccomplishedandthestatusoftheacceptabilityoftheweldsaffected.Theserecordsreflecttheinterim(12/1/77to3/15/78)Bechtelinspectionandreworkeffort.

Mr.BoyceH.GrierApril6,1979RecordsofITT-Grinnell'sactivitiesaremaintainedinaccordancewithitsQCProgram.TherecordsofBechtelandITT-Grinnellinspectionsarebeingkeptasseparatedocuments.Bothsetsofrecordscontainsimilarpertinentinformation.Inconjunctionwithitsinspectioneffort,ITT-Grinnellpreparedtheattachedreportoftheresults.andananalysistoverifytheadequacyoftheSusquehannaProject'shangerswhichwerefabricatedbyITTGrinnellinthefulfillmentofBechtelPurchaseOrderi/8856-P-3-ACRev.12.ThisreporthasbeenreviewedandacceptedbyBechtelEngineeringwhohavestated:"InsummarytheconclusionsofthereportsubstantiatetheadequacyoftheQ-Listedhangersinquestionbecause:(a)AllQ-Listedhangersshippedpriorto10/18/77wereinspectedforundersizedweldsaswellasforcompliancewiththerevisedspecificationrequirementsforvisualweldacceptancecriteria.(b)AllQ-Listedhangerswithundersizedweldswereanalyzedinthe"as-fabricated"conditiontodeterminestresslevelsoftheundersizedwelds.(c)NoneoftheQ-Listedhangerswithundersizedweldswerefoundtohaveweldstressesthatexceededtheagreeduponallowables.(d)TheITTWrinnellanalysisoftheundersizedweldsintheQ-Listedhangershasdemonstratedthatthisconditiondoesnotpresentasafetyhazardbecausenoneoftheweldswereover-stressed."Presently,hangersinfabricationatthesupplier'splant~beingproducedinaccordancewithBechtelSpecification8856-M-209,Rev.7,areofacceptablequality.Wethereforeconcludethatadditionalcorrectivemeasurestoprecluderecurrencearenotnecessary.Verytrulyyours,N.W.CurtisVicePresident-Engineering&ConstructionARS:mcbcc:Mr.J.G.Davis(15)ActingDirector-OfficeofInspection&EnforcementU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.G.McDonald,Director(1)OfficeofManagementInformation&ProgramControlU.S.NuclearRegulatoryCommissionWashington,D.C.20555Mr.RobertM.GalloU.S.NuclearRegulatoryCommissionP.O.Box52Shickshinny;PA18655

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