IR 05000335/1981030

From kanterella
Jump to navigation Jump to search
Responds to NRC 820108 Ltr Re Violations Noted in Ie Insp Rept 50-335/81-30.Does Not Concur W/Violation,However Surveillance Procedure for Local Leak Rate Testing of Containment Isolation Valves Will Be Revised
ML17212B444
Person / Time
Site: Saint Lucie NextEra Energy icon.png
Issue date: 02/12/1982
From: UHRIG R E
FLORIDA POWER & LIGHT CO.
To: OREILLY J P
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML17212B442 List:
References
L-82-52, NUDOCS 8203170332
Download: ML17212B444 (6)


Text

".~<"FLORIDAPOWERIILIGHTCOMPANYFebruary12,1982L-82-52Mr.JamesP.O'ReillyRegionalAdministrator,RegionIIU.S.NuclearRegulatoryCommission101MariettaStreet,Suite3100Atlanta,Georgia30303

DearMr.O'Reilly:

Re:St.LucieUnit1DocketNo.50-335IEInsecti.onReort81-30FloridaPower8LightCompanyhasreviewedthesubjectinspectionreportandaresponseisattached.Thereisnoproprietaryinformationinthereport.Verytrulyyours,RobetE.Uhrig'PresidentAdvancedSystems&TechnologyREU/PLP/mbdAttachmentcc:HaroldF.Reis,Esquire8203i70332820305PDRADOCK050003358'DRPEOPLE...SERVINGPEOPLE (J JnQ~~~IATTACHMENTRe.St.LucieUnitIDocketNo.50-335IEIns~ectionReort81-30~FindinTechnicalSpecification6.8.l.crequiresthatwrittenproceduresshalloeestablished.implementedandmaintainedcoveringsurveillanceandtestactivitiesofsafety-relatedequipment.Contrarytotheabove,thesurveillanceprocedureforlocalleakratetestingofcontainmentisolationvalveswasinadequateinthattheproceduredidnotalwaysprovideanatmosphericventpathdownstreamofthevalveundertest,didnotprovidefordemonstrationthatotherpressuresourceswhichcouldaffectthetestwereinfactisolatedandnotleakingintothetestarea,anddidnotaddressalIvalvesrequiringalignmentinordertoconductavalidtest.Response:FPLdoesnotconcurwiththisfindingforthefollowingreasons:Byplantdesign,therearenoavailableventpathsintheindicatedcases.Inthesecasesthereis,however,alarge(admittedlyunvented)volumewhichwouldhavetobefilledbytheleaktestertogivefalseresults.Thefillingprocesswoulditselfgiveunacceptaoleleakageindication.Ifthissamevolume(whichisventedto0psigbeforetesting)werebeingpressurizedbyoutsideleakage,largeleakrateswouldmakeventingimpossible,smallleakrateswouldhavenoeffectandtheprobabi'lityofaleakratejustthesizetogivefalseresultsisverylow.Valvealignmentstoisolatetestboundariesareinfactcoveredbytheplanttagoutprocedurewhichrequiresfullisolationforpersonnelandequipmentprotection.Finallywhensomeofthedisputedsystemswereretestedwithpipingphysicallyopenedoroutsidesourcesverifiedisolatedtheresultsgenerallydidnotchangeatall.Inonecasetheslightincreaseobservedwaswithintheaccuracyofthetestmethod.Wehavealwaysfollowedthepracticeofdoingthistestingunderthedirectsupervisionofatrainedengineer.Wedonotusemaintenancepersonneloreventechniciansfortheexpressreasonofensuringproper,validtesting.ThisvalidtestingisbestdemonstratedbythefactthatresultsofboththeinitialandfirstperiodicIntegratedLeakRateTestatSt.Luciewereafactorof10belowtheallowablelimit.Again,wedonotfeeltheprocedure,donebytrainedengineersinconjunctionwithotherprocedures(suchasthetagoutprocedure)isinadequate.Toprecludefutureproblemsinthisarea,wedoagreetorevisetheprocedure,beforethenextperformance,tomoreclearlyaddressthedisputedarea ~~I,ICHlIIP~HCfI'EII~r1"I'r,IIgH1IIIIIII~'.'C'IffCNHII'll~I'II1IfIIH~IClIIIIHrCCHHLNH'c-Iff.1H'lr.I~IINNNl'1HIIHHIrIf"1If"4llI~fNIf~,Hfl..f'~,~II.(*1VCH

~~STATEOFFLORIDA))COUNTYOFDADE)ssJ.E.Vesselybeingfirstdulysworn,deposesandsays:ThatheisDirector,NuclearAffairsLightCompany,theherein;~ofFloridaPowerThathehasexecutedtheforegoingdocument;thatthestate-mentsmadeinthissaiddocumentaretrueandcorrecttothebestofhis'knowledge,information,andbelief,andthatheisauthorizedtoexecutetnedocumentonbehalfofsaidJ.E.VesselySubscribedandsworntobeforemethisI~,"'ayofNOTARYPUBLICinandfortheCountyofDade,State.ofFlora.daflotaryPub!ic,StateofFloridaatLarge~~~MyCommMonExp!roeOctober30,1983 1l4