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{{#Wiki_filter:KX, Status. Update Regarding the CrystalRiver U nit it3Steam Generator Replacement Outage Crystal River Unit 3 ("CR3") enteredi 'a pla nned unit outage obn aspart f the Steaim.Ge-ner*ato~rR Replcmno"G" jc for that unit. CR3 was: scheduled to return to service on Decembeir 19 2009. Duifrin 'thetouirse of the project, however, PEF disco~vere'd:
{{#Wiki_filter:KX, Status. Update Regarding the CrystalRiver Unit                                      it3Steam Generator Replacement Outage Crystal River Unit 3 ("CR3") enteredi 'a pla nned unit outage obn Seitember*26e26,      *29 aspartf the Steaim.Ge-ner*ato~rRReplcmno"G"                   jc for that unit. CR3 was: scheduled to return to service on Decembeir 19 2009. Duifrin 'thetouirse of the project, however, PEF disco~vere'd:
*c racking in the section of the~containment:
    *cracking in the section of the~containment: wall .that was opened for the SGR project. After.
wall .that was opened for the SGR project. After.investigation, PEF discovered a' "dedam inatio n" of some of the in the section:of the containment wall near the SGR'opening.
investigation, PEF discovered a' "dedam inatio n" of some of the concret* in the section:of the containment wall near the SGR'opening. PEF informed the Nuclear Regulatory Commission
PEF informed the Nuclear Regulatory Commission
("NRC") of this. discovery and *beghna root cause evalu ation to *detetrmmin'e thel cau.seeof the de-Theco pany and its engineeringctractors are nearing.cornpletion of an. exhaustive*review of the.,root Icause of the de-raination"   ii in the unit's exteior containment structure'.. The analysis tea idntiied ovr 7 difernt~otential,root cause failure modes for the de-lmnto                 n has narrowed this list to a handfulof remaining failure modes. Although the analysis-is not c6mplete;, th;.eremaining variables appear to point toward the interplay between several factors.
("NRC") of this. discovery and root cause evalu ation to thel cau.se eof the de-Theco pany and its engineeringctractors are nearing.cornpletion of an. exhaustive*review of the.,root Icause of the de-raination" in ii the unit's ext eior containment structure'..
We expect to:.have this review comp eted by the end ofJianuary, 2010.
The analysis tea idntiied ovr 7 difernt~otential, root cause failure modes for the de-lmnto n has narrowed this list to a handfulof remaining failure modes. Although the analysis-is not c6mplete;, th;.e remaining variables appear to point toward the interplay between several factors.We expect to:.have this review comp eted by the end ofJianuary, 2010.The Company has to complete the r 1pairstothe building.structure.
The Company has a:lso:deveLoped,*aworkplan to complete the r             1pairstothe building.structure.
We are mobilizing our effo rts ,to :b.egin therepairs, which we expect to commence once we have further insight from our root cause a~nalysis.
We are mobilizing our effo rts ,to:b.egin therepairs, which we expect to commence once we have further insight from our root cause a~nalysis. The NRC has-aldesignia'ted team ifexperts in. place to evalluatea:nd observe our enIt Iire.-approap     t hsise.W aerqet etnswt h NRC trepresenta tives to updatethem on ourtwork processes and ire keeping them fully informed':(as to our plans. We.will provide the root:cause analysis to the NRC when it is, completedas:well as our plan- to repair the structure'.
The NRC has-aldesignia'ted team if experts in. place to evalluatea:nd observe our enIt Iire.-approap t hsise.W aerqet etnswt h NRC trepresenta tives to updatethem on ourtwork processes and ire keeping them fully informed':(as to our plans. We.will provide the root:cause analysis to the NRC when it is, completedas:well as our plan- to repair the structure'.
At present; wecdo'not havea firm return'to servicedate forICR3,.nor do we have finalized estimates'on rIhepair,`ad* replachemnt power costs, which will'be:in;large part a functionwof schedule. *nce-ourrepair plans have beeien finalized we Will pr6Ovide'thfose es'tim`atestto you, o1mptly. Based on w~hat we kno.watthis'tim'e, we do e~xpecf.that all repairs will becomplet ed
At present; wecdo'not havea firm return'to servicedate forICR3,.nor do we have finalized estimates'on replachemnt power costs, which will'be:in;large part a functionwof schedule.
    ;pr1 so that C1R3 willreturn to service by mid-year.
plans have beeien finalized we Will pr6Ovide'thfose es'tim`atestto you,;pr1 o 1mptly. Based on w~hat we kno.wat this'tim'e, we do e~xpecf. that all repairs will becomplet ed so that C1R3 willreturn to service by mid-year.Our currentO cus is on returning CR3,to service safely and.;quickly.
Our currentO cus is on returning CR3,to service safely and.;quickly. Once CR3 returns to service, PEF plans.to ask the Florida Public Service Commission to opeh a docketed matter regardinglt his outage so that the Commission and all interested parties ýcan:reiviewall the relevant factS and informiation:.regarding the outagie,ý,the' root cause, andtthe ~epair process.
Once CR3 returns to service, PEF plans.to ask the Florida Public Service Commission to opeh a docketed matter regardinglt his outage so that the Commission and all interested parties ýcan:reiviewall the relevant factS and informiation:.regarding the outagie,ý,the' root cause, andt the ~epair process.The Company isCconfidenit  
The Company isCconfidenit :that it will'be able to continue ito meet, peakload and reserve margin requirements througi company-ownedtpurchasesifgeneration and               neededa'sit didd'uring
:that it will'be able to continue ito meet, peakload and reserve margin requirements througi company-owned generation and tpurchasesif neededa'sit didd'uring
* ea~kýre~cords ear~liertthisý month.}}
* ea~kýre~cords ear~liertthisý month.}}

Latest revision as of 19:48, 13 November 2019

Status Update Regarding the Crystal River Unit 3 Steam Generator Replacement Outage
ML101060327
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 04/09/2010
From:
- No Known Affiliation
To:
Office of Nuclear Reactor Regulation
References
FOIA/PA-2010-0116
Download: ML101060327 (1)


Text

KX, Status. Update Regarding the CrystalRiver Unit it3Steam Generator Replacement Outage Crystal River Unit 3 ("CR3") enteredi 'a pla nned unit outage obn Seitember*26e26, *29 aspartf the Steaim.Ge-ner*ato~rRReplcmno"G" jc for that unit. CR3 was: scheduled to return to service on Decembeir 19 2009. Duifrin 'thetouirse of the project, however, PEF disco~vere'd:

  • cracking in the section of the~containment: wall .that was opened for the SGR project. After.

investigation, PEF discovered a' "dedam inatio n" of some of the concret* in the section:of the containment wall near the SGR'opening. PEF informed the Nuclear Regulatory Commission

("NRC") of this. discovery and *beghna root cause evalu ation to *detetrmmin'e thel cau.seeof the de-Theco pany and its engineeringctractors are nearing.cornpletion of an. exhaustive*review of the.,root Icause of the de-raination" ii in the unit's exteior containment structure'.. The analysis tea idntiied ovr 7 difernt~otential,root cause failure modes for the de-lmnto n has narrowed this list to a handfulof remaining failure modes. Although the analysis-is not c6mplete;, th;.eremaining variables appear to point toward the interplay between several factors.

We expect to:.have this review comp eted by the end ofJianuary, 2010.

The Company has a:lso:deveLoped,*aworkplan to complete the r 1pairstothe building.structure.

We are mobilizing our effo rts ,to:b.egin therepairs, which we expect to commence once we have further insight from our root cause a~nalysis. The NRC has-aldesignia'ted team ifexperts in. place to evalluatea:nd observe our enIt Iire.-approap t hsise.W aerqet etnswt h NRC trepresenta tives to updatethem on ourtwork processes and ire keeping them fully informed':(as to our plans. We.will provide the root:cause analysis to the NRC when it is, completedas:well as our plan- to repair the structure'.

At present; wecdo'not havea firm return'to servicedate forICR3,.nor do we have finalized estimates'on rIhepair,`ad* replachemnt power costs, which will'be:in;large part a functionwof schedule. *nce-ourrepair plans have beeien finalized we Will pr6Ovide'thfose es'tim`atestto you, o1mptly. Based on w~hat we kno.watthis'tim'e, we do e~xpecf.that all repairs will becomplet ed

pr1 so that C1R3 willreturn to service by mid-year.

Our currentO cus is on returning CR3,to service safely and.;quickly. Once CR3 returns to service, PEF plans.to ask the Florida Public Service Commission to opeh a docketed matter regardinglt his outage so that the Commission and all interested parties ýcan:reiviewall the relevant factS and informiation:.regarding the outagie,ý,the' root cause, andtthe ~epair process.

The Company isCconfidenit :that it will'be able to continue ito meet, peakload and reserve margin requirements througi company-ownedtpurchasesifgeneration and neededa'sit didd'uring

  • ea~kýre~cords ear~liertthisý month.