ML17265A636

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Part 21 Rept Re Power Supply That Did Not Work Properly When Drawn from Stock & Installed in -25 Vdc Slot.Power Supply Will Be Sent to Vendor to Perform Failure Mode Assessment.Evaluation Will Be Completed by 991001
ML17265A636
Person / Time
Site: Ginna Constellation icon.png
Issue date: 04/23/1999
From: POPP R W
ROCHESTER GAS & ELECTRIC CORP.
To: VISSING G S
NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
REF-PT21-99 NUDOCS 9904300200
Download: ML17265A636 (5)


Text

REGULATEYIH'FORMATIONDISTRIBUTIOYSTEM(RIDS)ACCESSIONNBR:9904300200DOC.DATE:99/04/23NOTARIZED:NOFACIL:50-244RobertEmmetGinnaNuclearPlant,Unit1,RochesterGAUTH.NAMEAUTHORAFFILIATIONPOPP,R.W.RochesterGas&ElectricCorp.RECIP.NAMERECIPIENTAFFILIATIONVISSING,G.S.DOCKET05000244

SUBJECT:

Part21reptrepowersupplythatdidnotworkproperlywhendrawnfromstock&.installedin-25VDCslot.Powersupplywillbesenttovendortoperformfailuremodeassessment.Evaluationwillbecompletedby991001.DISTRIBUTIONCODE:IE19TCOPIESRECEIVED:LTRlENCLISIZE:TITLE:Part21Rept(50DKT)NOTES:LicenseExpdateinaccordancewith10CFR2,2.109(9/19/72).E05000244RECIPIENTIDCODE/NAMELPD1-1PDCOPIESLTTRENCL11RECIPIENTIDCODE/NAMEVISSING,G.COPIESLTTRENCL11INTERNAL:ILECENTERP/~RGN1RGN311111111NRR/DRIP/REXBRES/DET/EIBRGN2RGN411111111EXTERNAL:INPORECORDCTRNRCPDRNOACSILVER,ENUDOCSFULLTXT1111D~)~pqqqn)p(ttgi,'gt'--'<ix(ll@)~SSQQi',t$,~S/NNOTETOALL"RIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATIONREMOVEDFROMDISTRZBUTIONLISTSORREDUCETHENUMBEROFCOPIESRECEIVEDBYYOUORYOURORGANIZATION,CONTACTTHEDOCUMENTCONTROLDESK(DCD)ONEXTENSION415-2083FULLTEXTCONVERS10NREQUIREDTOTALNUMBEROFCOPIESREQUIRED:LTTR14ENCL14 uwzipezra'jjgruIIIIIIIIIiljIIIIIIIIIIZSulIIII>~~j',STAttROCHESTERGASANDELECTRICCORPORATIONo89EASTAVENUE,ROCHESTER,N.Y.14649-000April23,1999TELEPHONEAREACODE7ld546-2700U.STNuclearRegulatoryCommissionDocumentControlDeskAttn:GuyS.VissingProjectDirectorateI-1Washington,D.C.20555

Subject:

10CFRPart21InterimReportR.E.GinnaNuclearPowerPlantDocketNo.50-244

DearMr.Vissing:

Theattached10CFR21interimreportissubmittedinaccordancewith10CFRPart21,ReportingofDefectsandNoncompliance,Section21(a)(2),whichrequires"ifanevaluationofanidentifieddeviationorfailuretocomplypotentiallyassociatedwithasubstantialsafetyhazardcannotbecompletedwithin60daysfromdiscoveryofthedeviationorfailuretocomply,aninterimreportispreparedandsubmittedtotheCommission".Verytrulyyours,xc'obertW.PoppMr.GuyS.Vissing(MailStop8C2)ProjectDirectorateI-1DivisionofReactorProjects-I/IIOfficeofNuclearReactorRegulationU.S~NuclearRegulatoryCommissionWashington,D.C.20555RegionalAdministrator,RegionIU.S.NuclearRegulatoryCommission475AllendaleRoadKingofPrussia,PA19406U.S.NRCGinnaSeniorResidentInspector9904300200990423..ZQ5PDRADQCK05000244SPDR 0C\'T (10CPR21SUBSTANTIALSAFETYHAZARDEVALUATIONINTERIMREPORTDESCRIPTIONOFDEVIATION:Apowersupply,procuredforuseintheNuclearInstrumentSystem(NIS)sourceranges(SR),whendrawnfromstockandplacedinNISSRchannelN-31,didnotworkproperlywheninstalledinthe-25VDCslot.However,thepowersupplyfunctionedproperlywheninstalledinthe+25VDCslot.Thispowersupplyisexpectedtofunctionproperlyinboththepositiveandnegativeslots.Itisnotknownwhetherthiswasadeviationpresentsincereceiptfromthevendor,orwasinitiatedduringinstallationactivitiesatGinnaStation(andnotadeviation).REFERENCEDOCUMENTS:RochesterGas&ElectricPurchaseOrderNQ15139-C-JWDATEWHENEVALUATIONWILLBECOMPLETED:Thepowersupplywillbesenttothevendortoperformafailuremodeassessmentanddetermineifthepowersupplywasdeficientatthetimeofreceipt.ItisestimatedthatthisevaluationwillbecompletedbyOctober1,1999.S-emsEngineer,IEC5ElectricalSystemReviewed:Mager,NuclearStraeandProcurement li0rL~~A'