ML18031A396

Forwards Handouts Provided at 820825 Meeting,Including Repts, Investigation of Unit 1 Small Piping Sys Design Installation & Insp Program Adequacy & Implementation & Suppl to Investigation of Unit 1 Small Piping Sys...

ML18031A396
Person / Time
Site:	Susquehanna
Issue date:	09/08/1982
From:	KENYON B D PENNSYLVANIA POWER & LIGHT CO.
To:	MARTIN T T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
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ML17139B041	List: ML17139B040 ML17139B042 ML18031A396
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PLA-1275, NUDOCS 8209240280
Download: ML18031A396 (34)

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PennsylvaniaPower8LightCompanyTwoNorthNinthStreet~Allentown,PA18101~215l770-5151BrdceD.KenyonVlccPresident-NuclearOperations215/770-4378XEHQ,ZIZZCODSEP081982Mr.T.T.Martin,DirectorDivisionofEngineeringandTechnicalProgramsU.S.NuclearRegulatoryCommissionRegionI631ParkAve.KingofPrussia,PA19406SUSQUEHANNASTEAMELECTRICSTATIONMEETINGWITHREGIONIER100450FILE841-4PLA-1275DocketNo.50-387

DearMr.Martin:

AttachedarethehandoutsprovidedinourAugust25,1982,meetingwithyouandyourstaff.IncludedwiththesehandoutsisPP&L's"ReportontheInvestigationofUnitOneSmallPipingSystemDesign,InstallationandInspection-ProgramAdequacyandImplementation."Verytrulyyours,B.D.KenyonVicePresident-NuclearOperationsWEB/mksAttachmentcc:G.Rhoads-USNRCR.Perch-USNRC~Utq8>09pqp28p>ppps8782pqD8pDRAQOCKopDR8~gpss USHROREGIONX'gPSEP9Ptl233 SUSUEHANNAALLEGATIONSANDFINDINGSQUESTION1.-StressIntensificationFactorOnsitesimplifiedcalculationsdidnotanalyzeweldolet/socket'connectionswithlargepipe.AnSIFof1.3wasusedforfitting/smallpipeinterface.Fitting/largepipeinterfacewasanalyzedwithlargeltpipestressanalysis.RESPONSE-MethodsusedtoaccountforstressintensificationinsmallpipingdesignandinbranchconnectionsonlargepipingwereexplainedataPL/NRCmeetingon8/11.NRC.concurredontheapproachwithonlyoneremaining,NRCconcernwhichwillberesolvedIfeithertherequirementsIoffootnote6ofNC-3673.2barebeingmetorPLdemonstrateasafetyfactorof2fortheworstcaseweldolet/sockoletbranchconnectioncalculatedstressBechtelisrespondingtothisremainingconcernby:(1)Comparingweldprofilesofweldolets/sockoletsusedinSSESwithASMESectionIII,1974editionrequirementsofNC-3673.2b-2andcorrespondingfootnote6.(2)Performinganalysestodemonstratesafetyfactorof2inbranchconnectionstresses(worstcase).'TATUS-NRChasconcurredwiththeapproachusedduringthemeetingon8/11/82.AdditionalresponseinformationwillbepresentedtoNRCon8/25/82..8209240280,'

QUESTION2.Nozzle'oadsonequipmentwereignoredonallSBPanalyzed.onsite.Iftheallowablenozzleloadsweresuppliedbythemanufacturer,thepipingloadswerecomparedtoit.Ifitwasnotprovideditwasnotcompared.Thelicenseecontendsthatpipeloadonequipmentisnotcriticalfornonsensitiveequipmentbecausethereisenoughconservatismbuiltintotheanalysisandtheplacementofthefirstsupport.LicenseewillsupplyalistofallequipmentthatwasanalyzedforNRC~review.RESPONSE-In8/11meetingwithNRC,PP&LandBechtelmadeapresentation.concerningtheabove'..TheNRCindicatedtheyhadnofurther.concernswiththisissueand'considertheitemclosed.PP&Ldidpromisetoprovideby8/25alistofequipmentf'rwhichdetailedsmallpipenozzleloadsanalysiswereperformed.STATUS-TheabovewillbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION3.Thelicenseeroutediesleevepenetrationsafterthepipingwasanalyzedforstress.Thelicenseecontendsthatthepenetrationshavebeeninspectedanddocumentedbythe"as-built"verificationprogram.RESPONSE-In8/11meetingwithNRC,PP&LandBechtelmadeapresentationconcerningtheabove.TheNRCindicatedthattheyhadnofurtherconcernsonthisissue.Itemisconsideredclosed.STATUS-Thisitemisclosed.

QUESTION4.Smallpipeanchors,perBechtelDetail600andSPA-1312,donotproviderestraintinthreedirections(x,y,z).Therearethreedrawingsofthishanger(Detail600,SPA-600,SPA-1312).Duetofabricationtolerances,theclampmaynothaveaninterferencecontacttoresistaxialand.torsionalslippage.RESPONSE-'nchorswerereworkedasnecessarytoinsuresufficient.contacttoresistaxial&torsionalslippage.Calculationswereperformedtojustifytheshimmingoftheanchorsinordertoenablethemtocarrytherequiredload.Thesecalculationsshowedthatallstressesareacceptable.PP&Lhasperformeda100%inspectionfollowingallrequiredreworkandhasverifiedrequiredcontactbetweenthepipeandtheanchoraswellaspropergapbetweenthetwohalvesoftheanchor.STATUS-TheabovewillbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION5.Agenericboltsize,problemexistswithall1"ha@gers(Detail600,SPA-600,SPA-1312).Theboltshoulderspecifiedextendsthroughbothearsofthepipeclamp.ThiscausesthebolttoshoulderoutbeforetheWclampisadequatelytorqued.RESPONSE-BechtelResponse:Boltlengthusedalongwiththegapandcomponentthicknesscouldleaduptobottomingoutofthenutontheboltthreadswithoutachievingthetorque.FCRP-4066andPL-NCR(82-728)haveprovisionsforaddingwasherstoprecludebottomingoutofthenutonthebolt.PP&Lperformed100%inspectionofthesubjectbolts.Allrequiredreworkhasbeenperformed,i.e.,washerswereaddedasnecessarytoboltsnotpassingacceptancecriteriatoprecludethemfromshoulderingout.STATUS-PP&Lconsidersthisitemclosed.

QUESTION6.BoltsspecifiedonDetail600areSA-307butSPA-600andSPA-1312areSA-325.SA-325boltsareofhigherstrength.RESPONSE-BoltmaterialwasnotspecifiedonDetail600,however,standardSA-307boltsweresuppliedandinstalled.AstudyCalculationwasperformedwhichjustifiestheuseofSA-307boltsfortheinstalledUnit1anchors.ThiswasdiscussedinateleconbetweenNRC,PP&LandBechtelon8/17/82.Astheresultofthisdiscussion,PP&LagreedtosubmittoNRCtheJustificationcalculation.Thiswasdoneon8/19/82alongwithawrittenresponse.STATUS-JustificationcalculationandawrittenresponsesubmittedtoNRCon8/19/82.PP&Lconsidersthisitemclosed.

QUESTION7.TheupgradeofDetail600totheSPA-1312designcauseddistortionoftheclampbecauseofweldingstresses.RESPONSE-FourlinecontactandproperbolttorquingresultinrequiredclampingIforceswhichprecludetheeffectsofdistortioncausedbyweldstresses.Thejustificationforfourlinecontactandproperbolttorqueisdiscussedintheresponsestoquestions(4)and(5)respectivelySTATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP&Lconsiders"thisitemclosed.

QUESTION8.The"ears"of,largeborepipehangerclampsweretrimmedtopreventinterference.Thishasnotbeenincorporatedintothedesign.Example:HBC-101-H210RESPONSE-TheGBC-101-H210clamptrimmingwasshownconceptuallyontheas-builtdetailand.judgedtobeadequateduringtheas-builtreconciliation.STATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP6Lconsidersthisitemclosed.

QUESTEON9.SBPSystemsonUnit1m'aybetoorigid.ThehangersrequiredforUnitIwereanalyzedbythesimplifiedmethodandresultedinabout700supports.ThehangersforUnit,2werecomputeranalyzedandresultedinabout,270.RESPONSE-Thiswasdiscussedinan8/17teleconbetweenPPGL,BTandNRC.Duringmeetingon8/18betweenPPGL&NRG;PPaLwasinformedthatthisitemisclosed.STATUS-Thisitemisclosed-

QUESTION10.Structuredsteelbeam.flangewarpageandwebdamageduetodeadloadplacedonbeamsatelevation749'.nearoutboardMSIV.RESPONSE-InameetingbetweenPPGLandNRCon8/18,PPGLwasinformedthatthisitemisclosed.STATUSThisitemisclosed.

'

QUESTION11.AdesignchangeonDecember21,1981revisedDetail600toSPA600butthenewdesignwasnotdistributedforworkorinspection.RESPONSE-TheinstallationandinspectionofDetail600typeanchorswasdoneinaccordancewithDetail-600Rev.1whileadrawingsupersedingit(SPA-600)existedatthesite.ThisoccurredbecauseSFHOissuedthesupersedingdrawing,SPA-600onDecember21,1981,withoutfirstissuingthecancellationrevisiontoDetail600.ThecancellationforDetail600wasissuedJune2,1982.AlthoughSFHOissuedSPA-600beforethecancellationrevisionforDetail600,theydidmakeanoteonSPA-600thatitsupersededDetail600.However,duetoinadequatedocumentreviewatthesite,thisnotewasoverlooked.ThecancellationrevisionshouldhavebeenissuedpriortoissuingSPA-600.Inaddition,abetterdocumentreviewshouldhavebeendone.AlldifferencesbetweenSPA600andDetail600havebeenreconciledwiththedesignrequirements,confirmingthattheexistinginstallationsareadequate.ToavoidthisprobleminUnit2,SPA'sarenotbeingutilized.Individualpipesupportdetailsarebeinggeneratedlikelargepipesupports.Alldrawingsforinstallationandinspectionwillbeissuedandcontrolledbyestablishedfieldprocedures,whichwillincluderequirements,'asapplicable,toensureappropriatetimeconstraintsanddoumentationrequirementsforfieldreviewandimplementationofdesignchanges.STATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION12.TheproposedfixofDetail600hangersdoesnotappeartobeacceptabl(linecontactonpipe,notfulllength).RESPONSE-Acalculationhasbeenmadetojustifytheacceptabilityoffourlinecontact.Thecalculationshowsthatatwoinchcontactoneachsideisacceptableresultinginstressesthatarebelowtheallowables'.STATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION13.Onepipesupportattachedtotwoseismicallyindependentstructures.Threesupportshavebeenidentifiedconnectedbetweenthereactorbuildingandprimarycontainment.RESPONSE-PPaLtransmittedsetsofcalculationstoNRCon8/19/82indicatingthatthecorrectresponsespectraandseismicanchormovementanalysiswereused.Thiswasprovidedalongwithawrittenresponse.STATUSPPaLconsidersthisitemclosed.

QUESTION14.-Snubber,SP-HCC-136-H-.2003wasinstalledsuchthatthesupportcanbedeflectedseveralincheslaterally.RESPONSE-Wehaveinspectedthesupportafterthequestionwasraised.Thesupportframeisflexibleinthenorth-southdirection,i.e.,'ntheaxialdirectionofthepipe.Itmaintainsrigidityintheeast-westdirection.Sincethedesignrequirementoftheaxisofrestraintiseast-westonly,thesupportisconsideredtomeetitsintendedpurpose.Therefore,theas-builtsupportistechnicallysound.STATUS-TheabovewillbepresentedtoNRCon8/25/82.PP6Lconsidersthisitemclosed.

QUESTION15.Lackofclearancebetweensnubberendandclampear.RESPONSE-Theremaybealackofsufficientclearanceonthesize35snubbers.Thereforea100Kinspectionforclearancewillbedoneonallsize35snubbers.Inconjunction,a10XinspectionforclearanceswillbedoneonthebalanceofsnubbersinUnit/31.STATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP&Liscurrentlypursuingthiscourseofaction.-Acorrectiveactionwillbetakenpriortoheatupexceeding200F.

QUESTION16.Sitefabricatedrearbracketsofsnubbersdidnotprovideadequateclearanceforlateralmovementofthesnubber.RESPONSE-TherearenositefabricatedrearbracketsforsnubbersatSSESUnit81.STATUS-TheaboveresponsewillbepresentedtotheNRCon8/25/82.PP&Lfindstheaboveresponsesatisfactoryandconsidersthisitemclosed.

QUESTION17.Falsificationofrecords:QCinspectiononacceptanceofSPA-1312bolting.RESPONSE-ThesmallpipehangerdetaildrawingforhangersutilizingtheSPA-1312clampdoesnotidentifymaterialtypefortheboltsinquestion,therefore,itwasnotrequiredtobeverified.ThespecificactivityontheQualityControlInspectionRecordwassignedbecauseitdealswithotherattributesinadditiontomaterialtypesuchasmaterialsizeofrods,clamps,saddles,clevises,etc.QC.inspectionofinaccessibleitemstakesintoaccountthesequenceofinstallationtoallowinaccessibleitemstobeinspected.Whereitemswhicharerequiredtobeinspectedperdesigndrawings/QualityControlinspectionRecordsarefoundinaccessible,theyareidentifiedonNonconformanceReportsorP-20exceptionformsforpipesupportsasqualityindeterminate.STATUS-'heaboveresponsewf.llbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION18.DivisionofresponsibilitybetweenFieldEngineeringandResidentEngineering.RESPONSE-Therehavealwaysexisteddistinctorganizationsanddivisionofresponsibilitiesbetweenthefieldengineeringandresidentengineering.TheResidentEngineeringhasadualreportingrelationshipwithinengineeringastheyreporttotheProjectResidentEngineerandtotheProjectEngineeringGroupSupervisorprimarilyfortechnicalguidance.Therehavebeeninstanceswhereresidentengineerswereloanedtofieldengineerstoworkinthefieldengineeringorganizationandperformfieldengineeringdutiesandfunctions.AroundFebruary1982,aHangerDesignCoordinationTeamwasformedtopromotebettercommunication,andtoimproveefficiencyandproductivityoftheinstallationinterferenceresolutionprocess.Normally,craftspresentaninterferenceproblemtoFieldEngineeringandFieldEngineeringinturnpassesontheproblemto,ResidentEngineeringaftertheymakeanevaluationtodecidethatResidentEngineering'sinvolvementisneeded.TheResidentEngineeringbranchoftheteamworkedasaseparateentityinthemannertheydowhentheyworkfromResidentEngineering'sworklocation.TheteamwasphysicallysituatedinonetrailertoexpeditethedocumentationprocessandalsotogetpromptinvolvementoftheResidentEngineeringbybringingthemtotheclosepr'oximityoftheFieldEngineeringorganization.ResidentEngineeringmembersduringtheseoperationsreportedtotheResidentEngineeringGroupSupervisorandreceivedtechnicalaswellasadministrativeguidelinesfromhim.Thus,thereisnoinstancewheretheorganizationalanddivisionofresponsibilitiescharterwasviolatedduringtheUnit1hangerprogram.STATUS-TheaboveresponsewillbepresentedtoNRCon8/25/82.PP&Lconsidersthisitemclosed.

QUESTION19.Fieldengineering'sinitialingofcheck/approveentries'onfielddrawings.RESPONSE-I'heLeadFieldPipingEngineer's(LFPE)initialswereoftenenteredbyothersinthe"APPROVEDBY"blockonhangerdrawings,withouttheidentityoftheactualapproverbeingindicated.ThisspecificdiscrepancywaspreviouslyaddressedandcorrectedviaBechtelQ.A.AuditPFA-24-4-10,QAF/k4.FP-P-11Paras.4.3.6(smallpipeisometrics),5.3.1.2.c(largepipehangerdetails),and6.2.7.2.c(smallpipehangerdetails)allrequireapprovaloftheLFPEorhisdesignee;butdonotclearlyspecifythemethodofinitialing(i.e.,whoseinitialsareentered).Earlyintheproject,variousindividualsaredesignatedtosign/approvethesedrawingsfortheLFPE.Thedesigneesweregenerallysupervisorsinvolvedinthedr'aftingeffort,butotherpipingsupervisorswerealsodelegatedthisauthority.NOTE:"Approval"ofFieldpipingdrawings-althoughnotactuallydefinedinanyoftheprocedures,actuallysignifiesconcurrencethatrequireddesignreviews/checkshavebeenperformed(i.e.,checker'sinitialsonthedrawing)andformalauthorizationtoissuethedrawing.TherequirementsofFP-P-11wereunderstoodbysomeofthedesigneesinvolvedinfieldhanger"design"*tomeanthatthesignature(orinitials)oftheLFPEhimselfmustappearonthedrawings.Consequently,severalofthedesignees/approversenteredonlytheinitialsoftheLFPEtodocumenttheirapprovalofthedrawing.')hismethodofdocumentingapproval,althoughcontrarytostandard~ualitverificationconventionswasnotconsideredbytheindividualsinvolvedtoreflectimproper~draftXnconventions.*AlthoughreferredtoasFieldhanger"design",inactualitytheFieldperformedvaryingdegreesofconfigurationrevisionanddraftingbutinall.casesProjectEngineeringwasconsideredthefinalapprovalauthority.Insomecasesthepersonreviewing/checkinghangerdrawingswastheoriginatorofthedrawing,whoenteredfictitiousinitials("E.D.")inthe"BY"blockand("D.E.H.")inthe"CHECKED"block.FP-P-11omitsspecificcheckingrequirementsforFieldrevisionstosmallpipehangerdetails.(Althoughindependentcheckingwastheestablishedpractice.)Paras.4.3.5(smallpipeisos)and5.3.1.2b(largepipehangers)implyseparateandindependentchecks,butarenotreallyspecific.Nonetheless,therevisionblock.entrieson QUESTION19PAGE2OF3thedrawingsdoimplythataseparateindividualmustcheckthedrawing.Entryoftheoriginator'sinitialsinboththe"BY"blockandthe"CHECKED"block,aswellasentryoffictitiousinitialscanonlyreflectignoranceonthepartofthepersoninvolved,and-attemptsbythatpartytotakeashortcut..InsomecasesthecheckersenteredtheSmallPipeHangersupervisor'sinitials("A.G."or"T.G.")inthe"CHECKED"block.-TheentryoftheSPHsupervisor'sinitialsinthe"CHECKED"blockinvolvedanindependentcheckerwhowasqualifiedbutwhowasnotformallydesignatedasachecker,soheenteredhissupervisor'sinitials-againwithoutanyillintentorattemptatdeceit.WhenFieldEngineeringperformsfieldinspectionofhangers,theyinspecttheinstallationagainstthedetaildrawingtoverifyagreement.This,ineffectisareview/checkofthehangerdetail.Uponverifyingagreement(orcorrectingthedrawing)thedrawingispresentedtoQualityControlwhoinspectstheinstallationforcompliancewiththedrawingandvice-versa.Anydiscrepanciesidentifiedduringthisadditional"check"areidentifiedandthedrawingiscorrectedaccordingly(eitherbyred-lineorbyrevision)andthecorrectionisrechecked/verifiedbyQualityControlpriorto'heiracceptanceoftheinstallation.Therefore,evenifanindependentdraftingcheckwasnever~etfotmed(oozinvestigationindicatesthatthishappenedonlyinisolatedcases)subsequentFieldEngineeringandQualityControlchecksd9doccurafterthedraftingandcheckingofthedrawings,andanyresultantdesigndiscrepancieswouldhavebeenresolvedduringas-builtverification.(Theadequacyoftheas-builtverificationwassubstantiatedunderseparateauditprogramsinvolvingPPGLQA,BechtelQualityControlandasp'ecialauditteamwithinFieldEngineering.)Thus,theproceduraldiscrepancieswouldhavenoeffectonthevalidityoftheas-builtdrawingactuallyreflectingtheas-builtconditionsandasusedbyengineeringtoperformtheas-builtreconciliation.Additionallyallhangerdrawingshavereceived,afterfinalas-built,afinalLFPE/designeeapprovaldocumentedonthedrawingperPara.8.1.2ofFP-P-11.AnydiscrepanciesinpreviousLFPEapprovalsdocumentedonthehangerdrawingsare.thereforeirrelevantbecausethefinalLFPE/designee.approvalcoversthefinalQC-verifiedas-builtdrawing.Also,Pro]ectEngineeringhasreconciledthefieldas-builthangerdetailsw'iththedesignandsigned'thedrawingsperPara.8.1.2.ofFP-P-11.Thisinvolvesfinalverificationthattheas-builtdrawingrepresentsanadequatestructurebasedonthestressanalysis.

0 QUESTION19PACZ3OF3Finally,webelievethatpipingdrawingspreparedbythefielddoaccuratelyreflect.theinstallation.Inaddition,webelievethatQualityAssuranceprogrammaticrequirementswereadequatelycontrolledbytheengineeringandfieldprograms.Basedontheabovedescribedcheckingandapprovalsaccomplishedafterfinalissuanceofthehangerdetaildrawingsbythefieldhangergroups,nofurtherremedialcorrectiveactionshouldbenecessarytoaddresscompletedUnit1hangers.Withrespecttootherdrawingsusedforpipingas-buildinganddesignverification,reviewwithapplicablepersonnelindicatesthattheLFPEinitialswerenotenteredonFCI's(largepipeas-built.drawings)andsmallpipefabricationisometrics(usedforsmallpipe,as-building);thatitwasstandardpracticeforthecheckersandapproverstoentertheirowninitials.1ActiontoPrecludeRecurrence'hebasiccauseoftheproblemsidentifiedislackofcleardirectionconcerningdefini~the'eview/checkingandapprovalfunctionsinvolvedwith'ielddrafting,andidentifyingconciselytherequirementsfordocumentingthesefunctions.AllFieldProceduresinvolvingFieldDesign(alldisciplines)willbereviewedforsimilarlackofdirection;andappropriaterevisionstotheProcedureswillbeprocessed.Inaddition,allpersonsresponsiblefordrafting,review,andapprovalfunctionswill'beinstructedastotheimportanceofadheringtotheserequirementstoensuresimilardidcrepanciesdonotoccurinthefuture.CorrectiveactionwillbecompletedbySeptember30,1982.STATUS-TheaboveresponsewillbepresentedtoNRC8/25/82.Withimplementationoftheabovecorrectiveaction,PP&Lconsidersthisitemclosed.

l'IQuestion20-PP&LwasrequestedtodeterminewhetherPP&LandBechtelQ.A.ProgramscoveredtheareasofconcernidentifiedduringthePP&LInvestigationofSmallPipeDesign/Installation.Response-Generally,theauditsperformedbyBechtelwereofenoughdetailanddepthtoindicatethattherewassufficientreviewoftheparticularaspectofthesystembeingaudited.BechtelMCAR's(ManagementCorrectiveActionReport)andQAR's(QualityActionReport)arewrittenforanyparticulardiscrepancy(outsideanauditscope)thatrequirescorrectiveactionandfollow-up.ThefollowingareexamplesofauditfindingsandQAR'sthatindicatedproblemareasrelatedtothosefoundduringthePP&Linvestigation:1.Audit8'24-4-10,February,1982,containedafindingthatnetedanoncompliancewiththeprocedurefor"voiding"drawings.(Anotherfindinginthisaudit,althoughnotrelatedtotheInvestigationReport,reported.thatsupervisor'ssignature(initials)beingmisused.)2.Audit//'s30-3-4,30-3-5,30-3-6,and30-9-2,datedMarch,1981;August,1981;April1982;andMay,1982;respectively,discoveredvariousinstancesoflackofcontrolsforproceduralimplementationandengineeringinterfaces.3.Audit824-4-9,June',1981','containedfindingsthatindicatedvariousareasinwhichthe'as-built"configurat'ionofthe~pipingdidnotagreewiththedrawings.4.QAR8859,July30,1982,dealtwithFieldEngineeringnotreviewingSPADrawingsinatimelymanner.5.QAR//856,July22,1982,dealswiththedeficiencyidentifiedinthedesignof"SPA600"hanger.4B..PP&1<P.A.Duringtheperiodunderreview,therewereseven(7)formalandseven(7)unannouncedauditsrelatingtothesmallpipeprogram.'.'...'-"..'.-':.';:These.auditscoveredsuchareasasdocumentcontrol,Q.C..Inspection,anddesigncontrol(relatedtointerfacecontrolandtheuseofthelatestinformationfordesignverification).Numerousfindingswereidentifiedduringtheseauditsandseveralofthesestillremainopen.SomeoheauditsinwhichthefindingsweresimilartothoseofthePP&LInvestigationare:81.Auditf/C-82-14(jointauditwithBechtel),April,1982,inwhichsomeproceduralcontrolwerelackingintheResidentEngineeringGroup.

Ques%ion20Cont'dPage2of22.AuditPC-81-06,January,1982,identifiedproblem,areasintheFieldEngineeringlocatinghangerdeficienciesinthiswalkdown.3~4.UnannouncedAuditf/111,September,1981,discoveredvariousareasofproceduralandimplementationproblemsinthedesignportionofthesmallpipeprogram.N-5PackageReviewAuditf/'sCL-48,Hay,1982;CL-34,May,1982;andCL-34,June1982;indicatedareasinwhichthereweredraftingerrors.IV.CONCLUSIONSA..PP&LandBechtelauditscoveredtheprogrammatic/proceduralaspectsofthesmallpipedesign/installationprogram,butdidnotincludeatechnicalreviewoftheseaspects.B.TheInvestigationTeamhadthebenefitoftechnicalsupport.ThemajorityoftheconcernsidentifiedduringtheInvestigationwerearesultofthetechnicalreview.AsaconsequenceofPP&LandBechtelauditsnothavingtechnicalsupport,itcannotbeexpected,thattheywould'aisethesameconcernsthattheInvestigationTeamsdid.C.ThereviewingofPP&LandBechtelauditsrevealthattheirfrequencydidnotincreaseinproportiontoworkbeingaccomplishedduringthe"finalhecticperiod"(April-June1982).ButbothBechtelandPP&LQAcoverageofsmallpipeprogramexistedintheformsofBechtelQAsurveillanceofhangeras-builtinstallation(fromOct.1981)andPP&LN-5PackageReview,whichoccurredfromSeptember,1981,throughJuly,1982.Theseactivitiesincreasedinproportionto.theworkbeingaccomplishedduringthe"finalhecticperiod."Theseactivitiesandanydiscrepancieswereformallydocumented.STATUSPP&Lconsidersthisitemclosed.

~~gust23,1982FILEMEMOSUSQUEHANNASTEAMELECTRICSTATIONINVESTIGATIONOFSMALLPIPINGSYSTEMSPROBLEMSAmeetingwasheldonAugust18,1982betweentheNuclearRegulatoryCommissionandPP&Lconcerningthesmallpipingprogram.CerainquestionswereraisedconcerningtheprogramandPP&Lcommittedtoinvestigatethese.TheNRCquestionsandPP&Lresponsesfollow:Question:l.NhyhadBechtelQCaccepted(signed-off)certainattributesofhangerswhichwereinaccessibleandthusnotinspectable?Response:TheNRCmadereferencetothe"detail600"clampswhichweremodifiedperSPA1312.Themodificationswereofsuchanaturethattheclampboltheadswereconcealedafterthemodificationandthusitisnotpossibletoverifythatthemarkingsontheboltheadindicatethecorrectmaterial(A-325)..~~~The'BechtelQCinspectorsign-offinSection3.0oftheInspectionReport.'IR)doesnot,indicatethattheattributeofboltmaterialwasinspect:ed,onlythatthe"detail600"clampisatthatlocation.Thisisconsistentwiththeinspectionprograminthattheboltingmaterialisnotidentifiedontheuniquehangerdetaildrawingsand,therefore,wasnotarequiredQCverification.TheboltsareinspectedbytheBechtelQCReceivingGroupuponreceiptatSusquehannaformaterialtype.=Iftheboltingmaterialhadbeenanattributetobeinspected,thefactthatitwasuninspectablewouldhavebeennotedonanon-conformancereportfor.resolution.ThePP&LInvestigationTeamsnotedthistypeofBechtelQCactionduring+heInvestigationsincenon-conformancesweregeneratedforareaswhereplatethick-nesscouldnotbemeasuredduetogroutingcompletionor:-wherestructuraltubingthicknesscouldnotbemeasuredduetoconstructionclose-up.Thesetypesofitemswereresolved'byUTmeasurementsorbydr'lingaholetopermitthicknessmeasurement.Insummary:a.Allattributesofmodifiedfrictionclamps(SPA-1312)requiredtobeinspectedwereaccessible.

~.0b.TheinaccessibilitynotedbytheNRCinvolvedanattribute(boltingmaterial)whichwasnotrequiredbyProjectEngineeringtobeinspectedbyOC.Question:2.AretheBechtelFieldEngineeringandResidentEngineeringpersonnelworkingtogetherandreportingtothesameGroupSupervisor?Response:TheFieldEngineersandResidentEngineerswerelocatedinthesamfacilityforthepurposeofexoeditingchangesrequiredduringtheinstallationofthesmallborepipingsystemsandhangers.TheInvestigationTeamreviewedthereportingfunctions,organizationalchartandnamesofpersonnelinvolvedinthoseorganizations.Thecon-clusionoftheInvestigationTeamwasthatforUnit1FieldEngineersandResidentEngineersworkedcloselytogetherforefficiencysakebuthaddifferentreportingsupervision.TheareaofResidentEngineeringpersonnelbeing"lent"toFieldEngineeringandreturningsometimelatertotheResidentEngineeringgroupwasinvestigated.ThisorganizationalsystemappliesonlytoUnit2.TherearenoBechtelprogramrequirementspreventingitsim-plementation.TheconcernthatthesameindividualmayperformtheinitialdesignasaFieldEngineerandsubsequentlyperformtheverificationcalculationsasaResidentEngineerwasinvestigated.TheResident-.,EngineeringcalculationprocedurexequiresthatacheckerandSupervisorreviewandsignthecalculationaftertheoriginatorperforms'theinitialcalculation.Thisseriesofreviewsandsignaturesprovidesassurancethatthecalculationisperformedaccuratelyandcorrectly.

tC~I