IR 05000331/2004002
| ML17215A866 | |
| Person / Time | |
|---|---|
| Site: | Duane Arnold  |
| Issue date: | 04/29/1985 |
| From: | WILLIAMS J W FLORIDA POWER & LIGHT CO. |
| To: | MILLER J R Office of Nuclear Reactor Regulation |
| References | |
| L-185-169, NUDOCS 8505030487 | |
| Download: ML17215A866 (4) | |
Text
'EGULATOR'FORMAT IONDISTRIBUTION STEM(RIDS)ACCESSION NBR:8505030487 DOC,DATE:
85/04/29'OTARIZED:
NOFACIL:50"389 St,LuciePlant~Unit2iFloridaPower8LightCo.AUTH~NAMEAUTHORAFFILIATION WILLIAMS~J
~N~FloridaPowerLLightCo,RECIP~NAMERECIPIENT AFFILIATION MILLER',R
~DivisionofLicensing DOCKET05000389
SUBJECT: Submitsresultsof850331-0402 eddycur>entinservice inspofSteamGenerators 2A8,2B,SteamGenerators 2A828had141118imperfectionsirespectively
~Areasofconcer,nwillbe'onitored atnexteddycurrentexam,DISTRIBUTION CODEoA047DCOPIESRECEIVED;LTR ENCLSIZE:I.ITITLE:ORSubmittal:
Inservice Inspection/Testing NOTES;OL:04/06/83 05000389RECIPIENT IDCODE/NAME',
NRRORB3BC01INTERNAL:
ACRS16ELD/HDS2NR4TEB14REGI04COPIESLTTRENCL'7101010111RECIPIENT IDCODE/NAME ADM/LFMBNRR/DE/MEB 15NRR/DL/TAPtlG RGN2COPIESLTTRENCL0111EXTERNAL:
LPDRNSIC0305111NRCPDR02TOTALNUMBEROFCOPIESREQUIRED:
LTTR27ENCL25 0rlfI~i,Sl'I Cj<<rFLORIDAPOWER&LIGHTCOMPANYApril29,1985L-85-169OfficeofNuclearReactorRegulation Attention:
Mr.3amesR.Miller,ChiefDivisionofLicensing U.S.NuclearRegulatory Commission Washington, D.C.20555
DeariVlr.Miller:
Ref:St.LucieUnit2DocketNo.50-389Unscheduled SteamGenerator Inservice InsectionResultsFromMarch31,1985thruApril2,1985,FPLperformed anunscheduled EddyCurrentInservice Inspection ofbothSteamGenerators forSt.LucieUnit2.Thisinspection wasperformed toaddressbothFPLandindustryconcernsregarding abnormalwearinthebatwingareaandwasnotrequiredpertheplanttechnical specifications.
Theinspection programwasdesignedtoboundtheareaofconcernandincludedinspection of303tubesinSteamGenerator 2Aand300tubesinSteamGenerator 2B.The2ASteamGenerator had101imperfections in86tubesand130tubesweremechanically plugged.38tubes,atorabove00%imperfection depth,wereplugged.08tubesfoundtohaveimperfection depthlessthan00%wereplugged.Inaddition, 08tubeswerepreventatively pluggedbecauseofthebatwingareaconcern.The2BSteamGenerator had118imperfections in69tubesand130tubesweremechanically plugged.38tubes,atorabove00%imperfection depth,wereplugged.31tubesfoundtohaveimperfection depthlessthan00%wereplugged.Inaddition, 61tubeswerepreventatively pluggedbecauseofthebatwingareaconcern.Theareaofconcern.willbemonitored atthenextEddyCurrentExamination todetermine furtherdegradation.
Attached, foryourinformation, pleasefindthesummaryresultsoftheinspection.
Verytrulyyours,J.W.Williams, 3r.GroupVicePresident NuclearEnergy3WW/SAV/mvt Attachment hcc:HaroldF.ReisDr.3.NelsonGracePNS-LI-85-170v pDR~OSO4878504g9~8N)OC~OSOOOQ89PDRPEOPLE...
SERVINGPEOPLE Attachment SummaryresultsofPSL-2ECTSteamGenerator ISIperformed fromMarch31,1985thruApril2,1985.SteamGenerator
/$2ATotalTubesTestedTotalimperfections<20%
'otalDegraded?20
-39%TotalTubesabovePluggingLimit<0%TotalTubesPreviously PluggedTotalTubesMechanically PluggedthisOutageSteamGenerator
/72B303153338130TotalTubesTestedTotalImperfections<20%
TotalDegradedTubes>20-39%TotalTubesabovePluggingLimiD00%TotalTubesPreviously PluggedTotalTubesMechanically PluggedthisOutageIndication Locations:
DiagonalBarColdlegQBottomDiagonalBarColdlegQTopDiagonalBarHotlegQBottomDiagonalBarHotlegQTopVerticalStrap//1SubTotalOtherArtifacts RecordedAre:3001912383130S/G>>Art011850266S/GIIBII381507126118DentsatDiagonalBarHotlegDentsatDiagonalBarColdlegQBottomDentatDiagonalBarColdlegQTopPermeability Variations