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'FORMATION DISTRIBUTIO YSTEM(RIDS)ACCESSION NBR:9904300200 DOC.DATE:

99/04/23NOTARIZED:

NOFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester GAUTH.NAMEAUTHORAFFILIATION POPP,R.W.

Rochester Gas&ElectricCorp.RECIP.NAME RECIPIENT AFFILIATION VISSING,G.S.

DOCKET05000244

SUBJECT:

Part21reptrepowersupplythatdidnotworkproperlywhendrawnfromstock&.installed in-25VDCslot.Powersupplywillbesenttovendortoperformfailuremodeassessment.

Evaluation willbecompleted by991001.DISTRIBUTION CODE:IE19TCOPIESRECEIVED:LTR lENCLISIZE:TITLE:Part21Rept(50DKT)NOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

E05000244RECIPIENT IDCODE/NAME LPD1-1PDCOPIESLTTRENCL11RECIPIENT IDCODE/NAME VISSING,G.

COPIESLTTRENCL11INTERNAL:

ILECENTERP/~RGN1RGN311111111NRR/DRIP/REXB RES/DET/EIB RGN2RGN411111111EXTERNAL:

INPORECORDCTRNRCPDRNOACSILVER,ENUDOCSFULLTXT1111D~)~pqqqn)p(tt gi,'gt'--'<ix(

ll@)~SSQQi',t$,~S/NNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE.TOHAVEYOURNAMEORORGANIZATION REMOVEDFROMDISTRZBUTION LISTSORREDUCETHENUMBEROFCOPIESRECEIVEDBYYOUORYOURORGANIZATION, CONTACTTHEDOCUMENTCONTROLDESK(DCD)ONEXTENSION 415-2083FULLTEXTCONVERS10N REQUIREDTOTALNUMBEROFCOPIESREQUIRED:

LTTR14ENCL14 uwzipezra'jjgruIIIIIIIII iljIIIIIIIII IZSulIIII

>~~j',STAttROCHESTER GASANDELECTRICCORPORATION o89EASTAVENUE,ROCHESTER, N.Y.14649-000 April23,1999TELEPHONE AREACODE7ld546-2700U.STNuclearRegulatory Commission DocumentControlDeskAttn:GuyS.VissingProjectDirectorate I-1Washington, D.C.20555

Subject:

10CFRPart21InterimReportR.E.GinnaNuclearPowerPlantDocketNo.50-244

DearMr.Vissing:

Theattached10CFR21interimreportissubmitted inaccordance with10CFRPart21,Reporting ofDefectsandNoncompliance, Section21(a)(2),whichrequires"ifanevaluation ofanidentified deviation orfailuretocomplypotentially associated withasubstantial safetyhazardcannotbecompleted within60daysfromdiscovery ofthedeviation orfailuretocomply,aninterimreportispreparedandsubmitted totheCommission".

Verytrulyyours,xc'obertW.PoppMr.GuyS.Vissing(MailStop8C2)ProjectDirectorate I-1DivisionofReactorProjects-I/IIOfficeofNuclearReactorRegulation U.S~NuclearRegulatory Commission Washington, D.C.20555RegionalAdministrator, RegionIU.S.NuclearRegulatory Commission 475Allendale RoadKingofPrussia,PA19406U.S.NRCGinnaSeniorResidentInspector 9904300200 990423..ZQ5PDRADQCK05000244SPDR 0C\'T (10CPR21SUBSTANTIAL SAFETYHAZARDEVALUATION INTERIMREPORTDESCRIPTION OFDEVIATION:

Apowersupply,procuredforuseintheNuclearInstrument System(NIS)sourceranges(SR),whendrawnfromstockandplacedinNISSRchannelN-31,didnotworkproperlywheninstalled inthe-25VDCslot.However,thepowersupplyfunctioned properlywheninstalled inthe+25VDCslot.Thispowersupplyisexpectedtofunctionproperlyinboththepositiveandnegativeslots.Itisnotknownwhetherthiswasadeviation presentsincereceiptfromthevendor,orwasinitiated duringinstallation activities atGinnaStation(andnotadeviation).

REFERENCE DOCUMENTS:

Rochester Gas&ElectricPurchaseOrderNQ15139-C-JW DATEWHENEVALUATION WILLBECOMPLETED:

Thepowersupplywillbesenttothevendortoperformafailuremodeassessment anddetermine ifthepowersupplywasdeficient atthetimeofreceipt.Itisestimated thatthisevaluation willbecompleted byOctober1,1999.S-emsEngineer, IEC5Electrical SystemReviewed:

Mager,NuclearStraeandProcurement li0rL~~A'