ML17309A618

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Provides Addl Info to Assist NRC in Exam of RCP Flywheel Insp Interval Change.Revised ISI Program Document Section Xi Rev 1 Contains Updated RCP Requirements
ML17309A618
Person / Time
Site: Ginna 
Issue date: 07/08/1997
From: MECREDY R C
ROCHESTER GAS & ELECTRIC CORP.
To: VISSING G
NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17264A947 List:
References
NUDOCS 9707170007
Download: ML17309A618 (15)
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Text

IgalCATEGORY1REGULATORY INFORMATION DISTRIBUTION TEM(RIDE)ACCESSION NBR:9707170007 DOC.DATE:

97/07/08NOTARIZED:

NOFACIL:50-244 RobertEmmetGinnaNuclearPlant,Unit1,Rochester GAttH,NAMEAUTHORAFFI.'>IATIONMECREf)Y,R.C.

Rochester Gas&ElectricCorp.RECIV.NAME RECIPIENT AFFILIATION VISS'.NG,G.

DOCKETI'05000244 g~ce~+

SUBJECT:

Providesaddiinfotoassistinexamof970318ltrtoNRCre"ReactorCoolantPumpFlywhellInspIntervalChange."AlsoforwardsSectionXI,rev0&revisedSectionXI,rev1CwhichcontainsupdatedRCPrequirements 6examsperformed.

ADISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR JENCLfSIZE:+L~/

TITLE:ORSubmittal:

GeneralDistribution NOTES:License Expdateinaccordance with10CFR2,2.109(9/19/72).

05000244RECIPIENT IDCODE/NAME PD1-1LAVISSING,G.

INTERNAL:

ILE1NRR/DE/EMCB NRR/DSSA/SPLB NUDOCS-ABSTRACT EXTERNAL:

NOACCOPIESLTTRENCL11111111111111RECIPIENT IDCODE/NAME PD1-1PDNRR/DE/ECGB/A, NRR/DRCH/HICB NRR/DSSA/SRXB OGC/HDS3NRCPDRCOPIESLTTRENCL111111111'.11D0UNOTETOALL"RIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK,RooMowFN5D-5(EXT.

415-2083)

ToELIMINATE Y0URNAMEFRQMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!",TOTAL'UMBER OFCOPIESREQUIRED:

LTTR13ENCL12

(

4NDROCHESTER GASANDELECTRICCORPORATION

~89EASTAYENUE, ROCHESTER, N.YIdhf9-0001 AREACODE71654rS-2700 ROBERTC.MECREDYVicePresident NodeorOperotions U.S.NuclearRegulatory Commission DocumentControlDeskAttn:GuyVissingProjectDirectorate I-1Washington, D.C.20555July8,1997

Subject:

ReactorCoolantPumpFlywheelInspection IntervalChangeAdditional Information R.E.GinnaNuclearPowerPlantDocketNo.50-244Ref.(a):LetterfromRobertC.Mecredy,(RG&E),toGuyS.Vissing,(NRC),"ReactorCoolantPumpFlywheelInspection IntervalChange,"datedMarch18,1997.

DearMr.Vissing:

Thepurposeofthisletteristoprovideadditional information toassistyouintheexamination ofthereferenced transmittal.

Thereactorcoolantpump(RCP)flywheelinspection wasnotpartofthepreviousR.E.GinnaTechnical Specifications.

Assuch,ithasnotbeencarriedintotheImprovedTechnical Specifications.

ThepreviousInservice Inspection (ISI)programdocumentrelatedtoRCPflywheelinspections isSectionXIRevision0.TherevisedISIprogram.document isSectionXIRevision1whichcontainstheupdatedRCPrequirements.

Copiesofthesetwodocuments areenclosed.

Inaddition, acopyoftheexaminations performed duringthesecondperiodofthethirdintervalareenclosed.

Shouldyouhaveanyquestions, pleasecallGeorgeWrobelat(716)724-8070.

Verytrulyyours,RobertC.MecredyEnclosures REJi4709707f70007tt70708'tl,PDRADQCK",05000244te'PDaLIllllllllllllllllllllllllllllllilllllllll xc:Mr.GuyVissing(MailStop14B2)ProjectDirectorate I-1Washington, D.C.20555U.S.NuclearRegulatory Commission RegionI475Allendale RoadKingofPrussia,PA19406GinnaSeniorResidentInspector 9707170007 ADDIT,IONAL PROGRAMSECTION11Revision0Page1of91.0General:Thepurposeofthissectionistoprovideinformation andclarification onadditional inspection programsbeingperformed atR.E.GinnaNuclearPowerPlant.Theseinspection programsmaybedueinparttoASMESectionXIprogramrequirements ortoothercommitments madebyRochester GasandElectric.

Thefollowing listidentifies additional inspection programsbeingperformed atR.EDGinnaNuclearPowerPlant:*SteamGenerator TubeInspection Program*ReactorCoolantPumpFlywheelProgram*ReactorVesselAugmented Program,CategoryB-A2.02.1General:2.1.1TheSteamGenerator TubeInspection Programincorporates therequirements ofASMESectionXICode,under'ategory B-Q,ItemNumberB16.20.TheCoderequiresthatSteamGenerator tubinginU-TubeDesignbevolumetrically (Eddy.Current) examinedtotheextentandfrequency governedbytheplantTechnical Specifications.

Inaccordance withthisCoderequirement andR.E.GinnaStationTechnical Specifications, eddycurrentexaminations shallbeperformed.

SteamGenerator Tubingshallbeexaminedtheirfulllength,atleastonceeveryfiveyears.

ADDITIONAL PROGRAM-SECTIONt1Revision0Page2of92TheSteamGenerator TubeInspection Programalsoincorporates therequirements ofUSNRCRegulatory Guide1.83,Revision1,datedJuly,1975,"Inservice Inspection ofPressurized WaterReactor.SteamGenerator Tubes"andtherecommendations oftheElectricPowerResearch.

(EPRI)-PWRSteamGenerator Inspection Guidelines, X'8t885~8gpxevkPgx'8li8xCiag 2.2Xasyectx'cek"'pxogram~

2.2.1TheprogramforeachXeegeet'y'en'may'C9~8 ofthefive-yearsshallinclude,asaminimum,.thefollowing requirements:

2.'.Arotatingrandomsamplingof20%ofalloperational tubesfortheirfulllength.g'h'S'Surrngi~lllR~!'PO<'.'~O@iuh'e!e jg8ha'3'"'3'Fp+!he-'*',;.+OnRP'3;:O'te'd

!Arotating, randomsampleof.20-.'ofeachtypeof.sleevedinlettubefortheirfulllength,including thesleevefromtheupperendthroughtheexpandedtransition ofthelowexend.-Alloperational tubesthathadapreviously identified SerOPee:;::.:candu'Oei degradation ofgreaterthan20';throughwalltotheextentofpreviously identified degradation.

However,ifaftertwo(2)consecutive inspections thesetubeshavenothadgreaterthan10-.furtherpenetration, theinspection frequency onthesetubesmaybeextendedto40months.

'ADDITlONAL, PROGRAMSECTlON11Revision0Page3of92.2..2Othertubesmaybeadded.totheprogrameachi'aspic'Ct'xoQ~@CpC3le asnecessary tomeetotherconcernsandareclassified as"ownerelected".

"OwnerElected"examinations arenotmandatory andmaybeperformed asdetermined bytheowner.2.2.3TheGinnaSteamGenerator Reliability Committee maychangetheaforementioned plantomeetoutageschedules, providedthatthechangesmeettherequirement ofRegulatory Guide1.83andSupplement 1:it!f!':i.::,i':ll"W,:.-'i:;::,:,,',ll:

'::!1i,:,2.3Examination Method:2.3.1EddyCurrent(Volumetric)

Examination techniques shallbeemployedtoperformtherequiredexaminations onSteamGenerator tubes.2.4Precpxency ofExaminations:

2.4.1Examinations shallbeperformed every-$!esp'e'Cp'ee'::,';:.,",;,O'JJ',.C3!8 totheextentrequiredandspecified within2.2,asaminimum.2.5Examination Evaluation:

2.5.1EddyCurrentevaluation shallbeperformed inaccordance with('8gpdeVe'5;,'-p'Wo'ee5~8'e.

ADDITIONAL PROGRAMSECTlON'1'tRevision0Page4of92.6Repair,Replacement andTestingRequirements 2.6.1-Repaircriteriaforsteamgenerato'r tubesis-basedontherequirements ofRegulatory Guide1.121,"BasesforPluggingDegradedPWRSteamGenerator Tubes".2.6.1.1Steamgenerator tubesthathaveimperfections greaterthan40percentthrough-wall asindicated byeddycurrent,shallbe'repaired bypluggingorsleeving..

2.6.1.2Steamgenerator sleevesthathaveimperfections greaterthan30percentthroughwallasindicated byeddycurrentshallberepairedbyplugging.

2.6.2Repairsbyweldedplugsandsleevesshallbeperformed inaccordance with88Cti'Op<@32:.

2.72.7.1'IScheduling:

EddyCurrentexamination schedules of'SteamGenerator,'ubes shallbeestablished withinSupplement 1,~/@he%%8'8~r'Vi'C8'.":."INO'C.t'ACE

~jP~NC'gX8N>~P3,"cN 2.8ReportsandRecords:2.8.1Applicable recordsshallbemaintained asspecified withinSection1andSe'C'tk<ML3,,'2::.

2.8.2.Within15daysfollowing thecompletion oftheevaluation ofeachinservice inspection ofsteamgenerator tubes,,thenumberoftubesrequiredbyParagraph 2.6.1abovetobepluggedorsleevedineachsteamgenerator shallbereportedtotheNRCinaSpecialReport.

te ADDITIONAL PROGRAMSECTION11Revision0Page5of9Thecompleteresultsofthesteamgenerator tubeinservice inspection shallbesubmitted totheBRCinRRNÃk$aSpecialReportwithin12monthsfollowing thecompletion oftheinspection.

ThisSpecialReportshallinclude:(a)Numberoftubesinspected andextenttowhichinspected.

(b)Locationandpercentpenetration foreachimperfection, andofwall-thickness indication ofan(c)Identification oftubespluggedorsleeved.Ifthenumberoftubesinagenerator fallingintocategories (a)or(b).belowexceedsthecriteria, thenresultsoftheinspection shallbeconsidered aReportable Eventpursuantto10CFR50.73.Oralnotification totheNRCStaffshall'beaccomplished'ithin 48hours,butnosoonerthanthenextnormalworkingdayafterthefinalreviewoftheeddycurrentresults.Awrittenfollowupreportshallprovideadescription ofinvestigations conducted todetermine thecauseofthetubedegradation andcorrective measurestakentoprecluderecurrence.

Categories (a)and(b)are:(a)Morethan10percentofthetotaltubesinspected aredegraded(imperfections greaterthan20percentofthenominalwallthickness).

However,previously degradedtubesmustexhibitatleast10percentfurtherwallpenetration tobeincludedinthiscalculation.

C0

<<ADDITIONAL PROGRAMSECTION11Revision0Page6of9'b)Norethan1percentofthetotaltubesinspected aredegraded(imperfections greaterthantherepairlimit).3.03.1General:Theaugmented inservice inspection programforReactorCoolantPumpFlywheels incorporates therequirements oftheUSNRCRegulatory Guide1.14,Revision1,datedAugust1975,entitled"ReactorCoolantPumpFlywheelIntegrity".

3.2Examination Requirements:

3.2~1"Examinations shallbeperformed onallactiveReactorCoolantPumpFlywheels andAnti-Rotation, Pawls.3.3Examination Method,:3.3.1ReactorCoolantPumpFlywheels shallbeexaminedusingUltrasonic andSurfaceexamination techniques.

3.3.2ReactorCoolantPumpAnti-Rotation PawlsshallbeexaminedusingSurfaceexamination techniques.

3~3.3Ultrasonic andSurfaceexaminations shallconformtoandbeperformed inaccordance withSection1ofthisprogram.

'CADDITlONAL PROGRAMSECT1ON11Revision0Page7of93.4Frequency ofExaminations:

3.4.1Examinations shallbeperformed onalloperating ReactorCoolantPumpPlywheelandAnti-Rotation Pawlsonceeachperiod.13.5Examination Evaluation:

3.5.1Examination evaluations shallbeperformedinaccordance withSection1ofthisprogram.3.5.2Unacceptable examinations shallbereport'ed.

forevaluation,and appropriate corrective action.3.6Repair,Replacement andTestingRequirements 3.6.1RepairsandReplacements shallbeperformed inaccordance with~88Ct'ieli~g!3',

asapplicable.

3.7Scheduling:

3.7.1Examination schedules shallbeestablished withinSuPPiement Z.,.themezne'etS,i'Ce@znSPeetacn<<PX'Ogtem-:.:X',1:an.

3.8ReportsandRecords:3.8.1Applicable recordsshallbemaintained asspecified inSectioni:ade:;-:,:

eSticoin'2

ADDITlONAL PROGRAMSECTION11Revision0Page8of9General:Asspecified withintheFederalRegister, 10CFRPart50,Vol.57,No.152datedAugust6,1992,aspecificaugmented examination programisrequiredforASNESectionXICategoryB-A,ShellWeldsof"Pressure Retaining WeldsinReactorVessel".Examination Recpxirements:

Examinations shallbeperformed onallASNESectionXICategoryB-A,ItemB1.0,ShellWeldsof"Pressure Retaining WeldsinReactorVessel"thatarenotrequiredbytheCode.Examination Method.:Ultrasonic examinations shallconformandbeperformed inaccordance withSection1ofthisprogram.Frequency ofExaminations:

Examinations shallbeperiormedonceduringtheInspection Interval.

ExaminationEva1uation:

Examination Evaluations shallbeperformed inaccordance withSection1ofthisprogram.

'w~ADD1TIONALPROGRAMSECT!ON11Revision0Page9of9Unacceptable examinations shallbereportedforevaluation andappropriate corrective action.Repair,Replacement andTestingRecpxirements (4.6.1RepairsandReplacements shallbeperformed inaccordance withSect'a'o~ti;,;:1'2:,

asapplicable.

Scheduling:

Examination schedules shallbeestablished withinSupplement 1,::,t58FX's'eptlXC8~sXgfSy'O'CdiCXf..":.":PX'agxlaN:;,;Plan@

ReportsandRecords:4!.8.1Applicable'ecords shall,bemaintained's specified withinSection1and8'8~C54~On's"'42:,.

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