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{{#Wiki_filter: | {{#Wiki_filter:ACCELERATED DIUTIONDEMONSTRATION SYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9106070303 DOC.DATE: | ||
91/05/03NOTARIZED: | |||
NODOCKETFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,Indiana&0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316AUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E. | |||
AmericanElectricPowerCo.,Inc.FITZPATRICK,E. | |||
AmericanElectricPowerServiceCorp.RRECIP.NAME RECIPIENT AFFILIATION MURLEY,T.E. | |||
OfficeofNuclearReactorRegulation, Director(Post870411 | |||
==SUBJECT:== | ==SUBJECT:== | ||
Respondstoltrreimportance ofNRCInfoNotice91-22.Highlights stepstakentoensurepersonnel maintianhighlevelofawareness ofpotential forcausesofshutdownrisksdescribed innotice.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR 2ENCL2SIZE:TITLE:ORSubmittal: | |||
GeneralDistribution NOTES:DDRECIPIENT IDCODE/NAME PD3-1LACOLBURN,T. | |||
INTERNAL: | |||
NRR/DET/ECMB 7DNRR/DOEA/OTSB11 NRR/DST/SELB 7ENRR/DST/SRXB 8EOC/LFMB01EXTERNALNRCPDRCOPIESLTTRENCL112211111111101'11RECIPIENT IDCODE/NAME PD3-1PDNRR/DET/ESGB NRR/DST8E2NRR/DST/SICB8H7 NUDOCS-ABSTRACT OGC/HDS2RES/DSIR/EIB NSICCOPIESLTTRENCL111111111.11011'1DNOTETOALL"RIDS"RECIPIENTS: | |||
DDPLEASEHELPUSTOREDUCEWASTEICONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISISFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED: | |||
LTTR18ENCL16 0I1,'~'Iggf4<<p=-e5Btt~II (P~AmericanEiectricPoServiceCorporation 1Riverside PlazaColumbus, OH43215SlÃMICNMKE,MR'NEC PO5ÃPQDr.T.E.HuxleyDirectorofNuclearReactorRegulation', | |||
U.S.NuclearRegulatory Commission Washington, D.C.20555m-si5/3'ay3,1991 | |||
==DearDr.Hurley:== | ==DearDr.Hurley:== | ||
E.E. | E.E.Fitzpatrick VicePresident NuciearOperations 6142232010Inresponsetoyourletterregarding theimportance ofNRCInformation Notice91-22,Iwouldliketohighlight thestepstakentoensurethatCookNuclearPlantpersonnel maintainahighlevelofawareness ofthepotential forandcausesoftheshutdownrisksdescribed inthenotice.I,too,amconcerned about,thetypesofeventsdescribed inthenoticeandhaveissuedaninternalmemorandum thatemphasizes theimportance ofthisissue.Plantmanagement alsorecognizes theimportance ofshutdownriskassessment. | ||
~~4>>~Dr.T.E.MurleyPage2May3,1991Inaddition, | Whi;lemeasureshave,beentakentoreduceshutdownrisksinthepast(unloading thecoreforthedurationoftheoutage,forexample), | ||
~~~p~I'V D.C. | wehaverecentlyinstituted formalized practices asaresultofourreviewoftheinformation noticeandinpreparation forarecentshort,plannedoutage.Theseeffortsincludemeasurestoensurethatplantpersonnel remainawareofthepotential foreventstooccurduringoutageconditions andprecautions toensurethattheprobability ofsucheventsissignificantly reduced.Becausetherecentshortoutagedealtwiththeinspection andminorrepairofamaintransformer, wewereparticularly interested inmaintaining highawareness ofthepotential forlossofpower.TheCookNuclearPlantoutagemanagement teamwasbriefedregarding eventsinvolving lossofACpowerwhileshutdownandwasgivencopiesofpertinent noticesandeventreportsfromNRCandINFO.Thesafetyandassessment department, asaresultoftheirreviewofNRCinformation noticesandINPOsignificant eventreports,published listsdetailing ACpowersuppliesandavailable backuppowersuppliesrequiredbythetechnical specifications, thetechnical specifications impactonexpectedsystemoutages,andrecentindustryeventsinvolving lossofACpowexwhileshutdown. | ||
Additionally, ashutdownriskprofilewaspublished andrevieweddaily.Apictorial representation ofthestatusofcriticalequipment wasprovidedanddiscussed eachmorningduringtheoutagetoreinforce furtheritsimportance tosafety.Anexampleofthepictoxial representation isattached. | |||
9106070303 910503PDR''ADOCK050003159PDR k~ | |||
~~4>>~Dr.T.E.MurleyPage2May3,1991Inaddition, theplantmanagerissueddirectives requiring plantmanagerapprovalofallnon-routine activities withintheswitchyard andrequiring thatanadditional powersupplyabovethoserequiredbythetechnical specifications bemaintained throughout theoutage.Duringtheoutage,theroadwayleadingtothepreferred offsitepowersupplytransformers wasclosedandthetransformer areawascordonedofftolimitaccess.Concretebarrierswereinstalled toprotectreservetransformers frominadvertent impactandadesignated spotterwasrequiredduringanycranemovementinthetransformer area.Theoutagemanagement teamperiodically inspected thetransformer ariddieselgenerator airintakeareasforsafetyhazards,loosedebris,andfirehazards.Asanaddedprecaution, priortoremovingadieselgenerator trainfromserviceformaintenance, theoppositetrain'sdieselgenerator wasruntoverifyitsoperability. | |||
Thisverification wasinadditiontoanytechnical specification requirements. | |||
ACookNuclearPlantshutdownissuestaskforcehasbeenconvenedtoexamineissuesaffecting plantsafetyduringshutdown. | |||
Areassuchasreactivity control,decayheatremoval,andreactorvesselprotection arebeingexaminedtodetermine theadequacyofourcurrentpractices andtosuggestimprovements. | |||
Thetaskforceisrepresented bypersonnel fromavarietyofdepartments including operations, outageplanning, maintenance, nuclearsafetyandlicensing, andshifttechnical advisors. | |||
Inaddition, theplantmanagerisamemberoftheNUMARCshutdownriskassessment team.Weintendtocontinuethepractices described aboveandtoimplement, throughformalprocedure, therecommendations resulting fromtheplantshutdownissuestaskforce.Theresultofthesecontrolsisthattheissuessurrounding non-routine plantconfigurations remainintheforeground duringplantoutages.Itisourintentto,andourbeliefthatthesemeasureswill,preventthetypesofeventsdescribed inInformation Notice91-22fromoccurring atCookNuclearPlant.Ifyourequireadditional information regarding CookNuclearPlantpractices, pleasecontactme.Sincerely, rdhAttachment | |||
~~~p~I'V D.C.COOKNUCLEARPLANTCRITICALPARAMETERS 4/25/91REACTORCOOLANTSYSTEMINVENTORY EMERGENCY DIESELGENERATORS BORATIONFLOWPATHESWPUMPSUNACCEPTABLE REGIONCHARGINGPUMPSPUMPS','+'+'+' | |||
POWERSOURCES'HR PUMPSParameter AccetableRaneRCSInventory (621-614ft)BorationFlowPathsAvail(l-2)ChargingPumpsAvail(1-2)OffSitePowerSources(1-2)RHRPumpsOperable(1-2)CCWPumpsOperable(1-2)ESWPumpsOperable(1-2)DieselGenerators Operable(1-2)No.>621ft2122212CommentsPZR>17%levelWESTPumpOutofS'erviceEASTPumpOutofServiceSTATUSOFCHANGES:WestCCPhasbeenRemovedfromServicetoLeakTestCS-299W t~e~0~~~0}} | |||
Revision as of 07:42, 29 June 2018
| ML17329A039 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 05/03/1991 |
| From: | FITZPATRICK E AMERICAN ELECTRIC POWER CO., INC., AMERICAN ELECTRIC POWER SERVICE CORP. |
| To: | MURLEY T E Office of Nuclear Reactor Regulation |
| References | |
| IEIN-91-022, IEIN-91-22, NUDOCS 9106070303 | |
| Download: ML17329A039 (8) | |
Text
ACCELERATED DIUTIONDEMONSTRATION SYSTEMREGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS)ACCESSION NBR:9106070303 DOC.DATE:
91/05/03NOTARIZED:
NODOCKETFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,Indiana&0500031550-316DonaldC.CookNuclearPowerPlant,Unit2,Indiana&05000316AUTH.NAMEAUTHORAFFILIATION FITZPATRICK,E.
AmericanElectricPowerCo.,Inc.FITZPATRICK,E.
AmericanElectricPowerServiceCorp.RRECIP.NAME RECIPIENT AFFILIATION MURLEY,T.E.
OfficeofNuclearReactorRegulation, Director(Post870411
SUBJECT:
Respondstoltrreimportance ofNRCInfoNotice91-22.Highlights stepstakentoensurepersonnel maintianhighlevelofawareness ofpotential forcausesofshutdownrisksdescribed innotice.DISTRIBUTION CODE:AOOIDCOPIESRECEIVED:LTR 2ENCL2SIZE:TITLE:ORSubmittal:
GeneralDistribution NOTES:DDRECIPIENT IDCODE/NAME PD3-1LACOLBURN,T.
INTERNAL:
NRR/DET/ECMB 7DNRR/DOEA/OTSB11 NRR/DST/SELB 7ENRR/DST/SRXB 8EOC/LFMB01EXTERNALNRCPDRCOPIESLTTRENCL112211111111101'11RECIPIENT IDCODE/NAME PD3-1PDNRR/DET/ESGB NRR/DST8E2NRR/DST/SICB8H7 NUDOCS-ABSTRACT OGC/HDS2RES/DSIR/EIB NSICCOPIESLTTRENCL111111111.11011'1DNOTETOALL"RIDS"RECIPIENTS:
DDPLEASEHELPUSTOREDUCEWASTEICONTACTTHEDOCUMENTCONTROLDESK,ROOMPl-37(EXT.20079)TOELIMINATE YOURNAMEFROMDISTRIBUTION LISISFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:
LTTR18ENCL16 0I1,'~'Iggf4<<p=-e5Btt~II (P~AmericanEiectricPoServiceCorporation 1Riverside PlazaColumbus, OH43215SlÃMICNMKE,MR'NEC PO5ÃPQDr.T.E.HuxleyDirectorofNuclearReactorRegulation',
U.S.NuclearRegulatory Commission Washington, D.C.20555m-si5/3'ay3,1991
DearDr.Hurley:
E.E.Fitzpatrick VicePresident NuciearOperations 6142232010Inresponsetoyourletterregarding theimportance ofNRCInformation Notice91-22,Iwouldliketohighlight thestepstakentoensurethatCookNuclearPlantpersonnel maintainahighlevelofawareness ofthepotential forandcausesoftheshutdownrisksdescribed inthenotice.I,too,amconcerned about,thetypesofeventsdescribed inthenoticeandhaveissuedaninternalmemorandum thatemphasizes theimportance ofthisissue.Plantmanagement alsorecognizes theimportance ofshutdownriskassessment.
Whi;lemeasureshave,beentakentoreduceshutdownrisksinthepast(unloading thecoreforthedurationoftheoutage,forexample),
wehaverecentlyinstituted formalized practices asaresultofourreviewoftheinformation noticeandinpreparation forarecentshort,plannedoutage.Theseeffortsincludemeasurestoensurethatplantpersonnel remainawareofthepotential foreventstooccurduringoutageconditions andprecautions toensurethattheprobability ofsucheventsissignificantly reduced.Becausetherecentshortoutagedealtwiththeinspection andminorrepairofamaintransformer, wewereparticularly interested inmaintaining highawareness ofthepotential forlossofpower.TheCookNuclearPlantoutagemanagement teamwasbriefedregarding eventsinvolving lossofACpowerwhileshutdownandwasgivencopiesofpertinent noticesandeventreportsfromNRCandINFO.Thesafetyandassessment department, asaresultoftheirreviewofNRCinformation noticesandINPOsignificant eventreports,published listsdetailing ACpowersuppliesandavailable backuppowersuppliesrequiredbythetechnical specifications, thetechnical specifications impactonexpectedsystemoutages,andrecentindustryeventsinvolving lossofACpowexwhileshutdown.
Additionally, ashutdownriskprofilewaspublished andrevieweddaily.Apictorial representation ofthestatusofcriticalequipment wasprovidedanddiscussed eachmorningduringtheoutagetoreinforce furtheritsimportance tosafety.Anexampleofthepictoxial representation isattached.
9106070303 910503PDRADOCK050003159PDR k~
~~4>>~Dr.T.E.MurleyPage2May3,1991Inaddition, theplantmanagerissueddirectives requiring plantmanagerapprovalofallnon-routine activities withintheswitchyard andrequiring thatanadditional powersupplyabovethoserequiredbythetechnical specifications bemaintained throughout theoutage.Duringtheoutage,theroadwayleadingtothepreferred offsitepowersupplytransformers wasclosedandthetransformer areawascordonedofftolimitaccess.Concretebarrierswereinstalled toprotectreservetransformers frominadvertent impactandadesignated spotterwasrequiredduringanycranemovementinthetransformer area.Theoutagemanagement teamperiodically inspected thetransformer ariddieselgenerator airintakeareasforsafetyhazards,loosedebris,andfirehazards.Asanaddedprecaution, priortoremovingadieselgenerator trainfromserviceformaintenance, theoppositetrain'sdieselgenerator wasruntoverifyitsoperability.
Thisverification wasinadditiontoanytechnical specification requirements.
ACookNuclearPlantshutdownissuestaskforcehasbeenconvenedtoexamineissuesaffecting plantsafetyduringshutdown.
Areassuchasreactivity control,decayheatremoval,andreactorvesselprotection arebeingexaminedtodetermine theadequacyofourcurrentpractices andtosuggestimprovements.
Thetaskforceisrepresented bypersonnel fromavarietyofdepartments including operations, outageplanning, maintenance, nuclearsafetyandlicensing, andshifttechnical advisors.
Inaddition, theplantmanagerisamemberoftheNUMARCshutdownriskassessment team.Weintendtocontinuethepractices described aboveandtoimplement, throughformalprocedure, therecommendations resulting fromtheplantshutdownissuestaskforce.Theresultofthesecontrolsisthattheissuessurrounding non-routine plantconfigurations remainintheforeground duringplantoutages.Itisourintentto,andourbeliefthatthesemeasureswill,preventthetypesofeventsdescribed inInformation Notice91-22fromoccurring atCookNuclearPlant.Ifyourequireadditional information regarding CookNuclearPlantpractices, pleasecontactme.Sincerely, rdhAttachment
~~~p~I'V D.C.COOKNUCLEARPLANTCRITICALPARAMETERS 4/25/91REACTORCOOLANTSYSTEMINVENTORY EMERGENCY DIESELGENERATORS BORATIONFLOWPATHESWPUMPSUNACCEPTABLE REGIONCHARGINGPUMPSPUMPS','+'+'+'
POWERSOURCES'HR PUMPSParameter AccetableRaneRCSInventory (621-614ft)BorationFlowPathsAvail(l-2)ChargingPumpsAvail(1-2)OffSitePowerSources(1-2)RHRPumpsOperable(1-2)CCWPumpsOperable(1-2)ESWPumpsOperable(1-2)DieselGenerators Operable(1-2)No.>621ft2122212CommentsPZR>17%levelWESTPumpOutofS'erviceEASTPumpOutofServiceSTATUSOFCHANGES:WestCCPhasbeenRemovedfromServicetoLeakTestCS-299W t~e~0~~~0