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{{#Wiki_filter:HRCFORM366(5.92)U.S.NUCLEARREGULA'TORYCOMMISSIONLICENSEEEVENTREPORT(LER)APPROVEDBYOMBNO.3150.0104EXPIRES5/31/95ESTIMATEDBURDENPERRESPOHSEToCOMPLYWITHTHIINFORMATIONCOLLECTIONREQUEST:50.0HRS.FORWARCOHMENTSREGARDINGBURDENESTIHATEToTHIHFORMATIONANDRECORDSMANAGEMENTBRANCH(MHB7714),U.S.NUCLEARREGULATORYCOMHISSION,WASHINGTON,DC20555-0001,AND'IOTHEPAPERWORREDUCTIOHPROJECT(3150-0104),OFFICE0MANAGEHENTANDBUDGETWASHINGTONDC20503.FACILITYNAME(1)DonaldC.CookNuclearPlant-Unit1DOCKETNUMBER(2)50.315Page1of1TITLE(4)InterimLER-ProceduralOptionforWeighingofIceBasketsinModes3and4DeterminedtobeaPotentiallyUnanalyzedConditionEVENTDATE5LERNUMBER6REPORTDA'TE7OTHERFACILITIESINVOLVED8MONTH01DAYYEAR2998YEAR98SEQUENTIALHUHBER006REVISIONNUMBER00MONTHDAY0303YEARFACILITYNAMECook-Unit2FACILITYNAMEDOCKE'INUMBER50-316DOCKETNUMBEROPERA'TINGMODE(9)POWERLEVEL(10)0THSREPORTISSUBMITTEDPURSUANT20.2201(b)20.2203a120.2203(a)(2)(I)20.2203(a)(3)(l)20.2203a3ii20.2203(a)(4)50.73(a)(2)(iii)50.73a2iv50.73(a)(2)(v)73.71(b)73.710OTHERe11TOTHEREQUIREMENTSOF10CFR:Checkoneormor20.2203a2ii20.2203(a)(2)(iii)20.2203(a)(2)(iv)20.2203(a)(2)(v)X50.36c150.36(c)(2)50.73(a)(2)(l)50.73(a)(2)(ii)50.73a2vii50.73(a)(2)(viii)(A)50.73(a)(2)(viii)(B)50.73(a)(2)(x)(SpecifyinAbstractbetoMandinText,NRCFore366A)NAMELICENSEECONTACTFORTHISI.ER12Mr.PaulSchoepf,SafetyRelatedMechanicalEngineeringSuperintendentTELEPHONENUMBER(IncludeAreaCode)616/465-5901,x2408COMPETEONELINEFOREACHCOMPONENTFAILUREDESCRIBED'INTHISREPORT13CAUSESYSTEMCOMPONENTMANUFACTURERREPORTABLE'oHPRDSCAUSESYSTEHCOHPONENTMANUFACTURERREPORTABLEToNPRDSSUPPLEMENTALREPORTEXPECTED14XYES(Ifyes,corpteteEXPEC'IEDSUBMISSIONDATE).NoEXPECTEDSUBMISSIONDATE(15)MONTHDAYYEAR040398ABS'TRACT(Limitto1400spaces,i.e.,approximately15single-spacedtypeiirittenlines)(16)OnFebruary25,1998,anENSnotificationwasmadeinaccordancewith10CFR50.72(b)(2)(l)~foraconditionfoundwhilethereactorwasshutdown,whichifithadbeenfoundwhilethereactor'wasoperating,couldhaveresultedintheplantbeinginanunanalyzedcondition.ThisnotificationwastheresultofanissueraisedinlateJanuary,1998regardingthebasisforastepintheicebasketweighingprocedurewhichallowedforupto60basketstobeunpinnedatatimeforweighingduringModes3and4.Asearchforthebasisfortheproceduralstepallowingtheunpinningofthe60basketswasconductedandnodocumentationcouldbelocated.Itwassubsequentlydeterminedthattheplantcouldhavebeeninanunanalyzedconditionduringtheperiodswhenthatspecificportionoftheprocedurewasperformed,andtheFebruary25,1998notificationwasmade.ThisinterimLERisthereforesubmittedinaccordancewith10CFR50.73(a)(2)(l)(B),foranunanalyzedcondition.Theicecondenserconsistsof24bayscontaining81basketseach,arrangedina300degreearcbetweenthecontainmentandcranewalls.Thebasketsarerequiredtocontainaminimumweightofboratedice,andasurveillanceisperiodicallyperformedtoweigharepresentativesampleofthebasketstoassurethattheminimumweightrequirementismet.Toperformthissurveillance,thebasketsarephysicallyliftedandweighed.Theicebasketsarehelddownbyau-boltarrangementattachedtothelowersupportbeamwithaclevispin,whichisnecessarytopreventmovementofthebasketduringLOCAandseismicevents.Theclevispinmustberemovedtoliftandweighthebasket.IcebasketsarenolongerunpinnedduringModes3and4,andrecollectionofcognizantplantpersonnelisthatthisproceduraloptionhasnotbeenusedinmorethantenyears.Archiverecordsarebeingreviewedtoascertainthelasttimethebasketswereunpinnedinthismanner.Becauseonlinebasketunpinningisnolongernecessaryfortheperformanceofbasketweighing,theprocedurewillberevisedtoeliminatethisoption.ItisexpectedthatanupdatetothisinterimLERwillbesubmittedbyApril3,1998.q8Psi20055PDRADOCI4,0S}}
{{#Wiki_filter:HRCFORM366(5.92)U.S.NUCLEARREGULA'TORY COMMISSION LICENSEEEVENTREPORT(LER)APPROVEDBYOMBNO.3150.0104 EXPIRES5/31/95ESTIMATED BURDENPERRESPOHSEToCOMPLYWITHTHIINFORMATION COLLECTION REQUEST:50.0HRS.FORWARCOHMENTSREGARDING BURDENESTIHATEToTHIHFORMATION ANDRECORDSMANAGEMENT BRANCH(MHB7714),U.S.NUCLEARREGULATORY COMHISSION, WASHINGTON, DC20555-0001, AND'IOTHEPAPERWORREDUCTIOH PROJECT(3150-0104),
OFFICE0MANAGEHENT ANDBUDGETWASHINGTON DC20503.FACILITYNAME(1)DonaldC.CookNuclearPlant-Unit1DOCKETNUMBER(2)50.315Page1of1TITLE(4)InterimLER-Procedural OptionforWeighingofIceBasketsinModes3and4Determined tobeaPotentially Unanalyzed Condition EVENTDATE5LERNUMBER6REPORTDA'TE7OTHERFACILITIES INVOLVED8MONTH01DAYYEAR2998YEAR98SEQUENTIAL HUHBER006REVISIONNUMBER00MONTHDAY0303YEARFACILITYNAMECook-Unit2FACILITYNAMEDOCKE'INUMBER50-316DOCKETNUMBEROPERA'TING MODE(9)POWERLEVEL(10)0THSREPORTISSUBMITTED PURSUANT20.2201(b) 20.2203a120.2203(a)(2)(I) 20.2203(a)(3)(l) 20.2203a3ii20.2203(a)(4) 50.73(a)(2)(iii) 50.73a2iv50.73(a)(2)(v) 73.71(b)73.710OTHERe11TOTHEREQUIREMENTS OF10CFR:Checkoneormor20.2203a2ii20.2203(a)(2)(iii) 20.2203(a)(2)(iv) 20.2203(a)(2)(v)
X50.36c150.36(c)(2) 50.73(a)(2)(l) 50.73(a)(2)(ii) 50.73a2vii50.73(a)(2)(viii)(A) 50.73(a)(2)(viii)(B) 50.73(a)(2)(x)
(SpecifyinAbstractbetoMandinText,NRCFore366A)NAMELICENSEECONTACTFORTHISI.ER12Mr.PaulSchoepf,SafetyRelatedMechanical Engineering Superintendent TELEPHONE NUMBER(IncludeAreaCode)616/465-5901, x2408COMPETEONELINEFOREACHCOMPONENT FAILUREDESCRIBED
'INTHISREPORT13CAUSESYSTEMCOMPONENT MANUFACTURER REPORTABLE
'oHPRDSCAUSESYSTEHCOHPONENT MANUFACTURER REPORTABLE ToNPRDSSUPPLEMENTAL REPORTEXPECTED14XYES(Ifyes,corpteteEXPEC'IED SUBMISSION DATE).NoEXPECTEDSUBMISSION DATE(15)MONTHDAYYEAR040398ABS'TRACT (Limitto1400spaces,i.e.,approximately 15single-spaced typeiiritten lines)(16)OnFebruary25,1998,anENSnotification wasmadeinaccordance with10CFR50.72(b)(2)(l)
~foracondition foundwhilethereactorwasshutdown, whichifithadbeenfoundwhilethereactor'was operating, couldhaveresultedintheplantbeinginanunanalyzed condition.
Thisnotification wastheresultofanissueraisedinlateJanuary,1998regarding thebasisforastepintheicebasketweighingprocedure whichallowedforupto60basketstobeunpinnedatatimeforweighingduringModes3and4.Asearchforthebasisfortheprocedural stepallowingtheunpinning ofthe60basketswasconducted andnodocumentation couldbelocated.Itwassubsequently determined thattheplantcouldhavebeeninanunanalyzed condition duringtheperiodswhenthatspecificportionoftheprocedure wasperformed, andtheFebruary25,1998notification wasmade.ThisinterimLERistherefore submitted inaccordance with10CFR50.73(a)(2)(l)(B),
foranunanalyzed condition.
Theicecondenser consistsof24bayscontaining 81basketseach,arrangedina300degreearcbetweenthecontainment andcranewalls.Thebasketsarerequiredtocontainaminimumweightofboratedice,andasurveillance isperiodically performed toweigharepresentative sampleofthebasketstoassurethattheminimumweightrequirement ismet.Toperformthissurveillance, thebasketsarephysically liftedandweighed.Theicebasketsarehelddownbyau-boltarrangement attachedtothelowersupportbeamwithaclevispin,whichisnecessary topreventmovementofthebasketduringLOCAandseismicevents.Theclevispinmustberemovedtoliftandweighthebasket.IcebasketsarenolongerunpinnedduringModes3and4,andrecollection ofcognizant plantpersonnel isthatthisprocedural optionhasnotbeenusedinmorethantenyears.Archiverecordsarebeingreviewedtoascertain thelasttimethebasketswereunpinnedinthismanner.Becauseonlinebasketunpinning isnolongernecessary fortheperformance ofbasketweighing, theprocedure willberevisedtoeliminate thisoption.ItisexpectedthatanupdatetothisinterimLERwillbesubmitted byApril3,1998.q8Psi20055 PDRADOCI4,0S}}

Revision as of 07:38, 29 June 2018

LER 98-006-00:on 980129,determined That Procedural Option for Weighing of Ice Baskets in Modes 3 & 4 Was Potentially Unanalyzed Condition.Cause Undeterminate.Procedure Will Be Revised
ML17334A676
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 03/03/1998
From: SCHOEPF P
AMERICAN ELECTRIC POWER CO., INC.
To:
Shared Package
ML17334A675 List:
References
LER-98-006, LER-98-6, NUDOCS 9803120055
Download: ML17334A676 (1)
v • d • e


Text

HRCFORM366(5.92)U.S.NUCLEARREGULA'TORY COMMISSION LICENSEEEVENTREPORT(LER)APPROVEDBYOMBNO.3150.0104 EXPIRES5/31/95ESTIMATED BURDENPERRESPOHSEToCOMPLYWITHTHIINFORMATION COLLECTION REQUEST:50.0HRS.FORWARCOHMENTSREGARDING BURDENESTIHATEToTHIHFORMATION ANDRECORDSMANAGEMENT BRANCH(MHB7714),U.S.NUCLEARREGULATORY COMHISSION, WASHINGTON, DC20555-0001, AND'IOTHEPAPERWORREDUCTIOH PROJECT(3150-0104),

OFFICE0MANAGEHENT ANDBUDGETWASHINGTON DC20503.FACILITYNAME(1)DonaldC.CookNuclearPlant-Unit1DOCKETNUMBER(2)50.315Page1of1TITLE(4)InterimLER-Procedural OptionforWeighingofIceBasketsinModes3and4Determined tobeaPotentially Unanalyzed Condition EVENTDATE5LERNUMBER6REPORTDA'TE7OTHERFACILITIES INVOLVED8MONTH01DAYYEAR2998YEAR98SEQUENTIAL HUHBER006REVISIONNUMBER00MONTHDAY0303YEARFACILITYNAMECook-Unit2FACILITYNAMEDOCKE'INUMBER50-316DOCKETNUMBEROPERA'TING MODE(9)POWERLEVEL(10)0THSREPORTISSUBMITTED PURSUANT20.2201(b) 20.2203a120.2203(a)(2)(I) 20.2203(a)(3)(l) 20.2203a3ii20.2203(a)(4) 50.73(a)(2)(iii) 50.73a2iv50.73(a)(2)(v) 73.71(b)73.710OTHERe11TOTHEREQUIREMENTS OF10CFR:Checkoneormor20.2203a2ii20.2203(a)(2)(iii) 20.2203(a)(2)(iv) 20.2203(a)(2)(v)

X50.36c150.36(c)(2) 50.73(a)(2)(l) 50.73(a)(2)(ii) 50.73a2vii50.73(a)(2)(viii)(A) 50.73(a)(2)(viii)(B) 50.73(a)(2)(x)

(SpecifyinAbstractbetoMandinText,NRCFore366A)NAMELICENSEECONTACTFORTHISI.ER12Mr.PaulSchoepf,SafetyRelatedMechanical Engineering Superintendent TELEPHONE NUMBER(IncludeAreaCode)616/465-5901, x2408COMPETEONELINEFOREACHCOMPONENT FAILUREDESCRIBED

'INTHISREPORT13CAUSESYSTEMCOMPONENT MANUFACTURER REPORTABLE

'oHPRDSCAUSESYSTEHCOHPONENT MANUFACTURER REPORTABLE ToNPRDSSUPPLEMENTAL REPORTEXPECTED14XYES(Ifyes,corpteteEXPEC'IED SUBMISSION DATE).NoEXPECTEDSUBMISSION DATE(15)MONTHDAYYEAR040398ABS'TRACT (Limitto1400spaces,i.e.,approximately 15single-spaced typeiiritten lines)(16)OnFebruary25,1998,anENSnotification wasmadeinaccordance with10CFR50.72(b)(2)(l)

~foracondition foundwhilethereactorwasshutdown, whichifithadbeenfoundwhilethereactor'was operating, couldhaveresultedintheplantbeinginanunanalyzed condition.

Thisnotification wastheresultofanissueraisedinlateJanuary,1998regarding thebasisforastepintheicebasketweighingprocedure whichallowedforupto60basketstobeunpinnedatatimeforweighingduringModes3and4.Asearchforthebasisfortheprocedural stepallowingtheunpinning ofthe60basketswasconducted andnodocumentation couldbelocated.Itwassubsequently determined thattheplantcouldhavebeeninanunanalyzed condition duringtheperiodswhenthatspecificportionoftheprocedure wasperformed, andtheFebruary25,1998notification wasmade.ThisinterimLERistherefore submitted inaccordance with10CFR50.73(a)(2)(l)(B),

foranunanalyzed condition.

Theicecondenser consistsof24bayscontaining 81basketseach,arrangedina300degreearcbetweenthecontainment andcranewalls.Thebasketsarerequiredtocontainaminimumweightofboratedice,andasurveillance isperiodically performed toweigharepresentative sampleofthebasketstoassurethattheminimumweightrequirement ismet.Toperformthissurveillance, thebasketsarephysically liftedandweighed.Theicebasketsarehelddownbyau-boltarrangement attachedtothelowersupportbeamwithaclevispin,whichisnecessary topreventmovementofthebasketduringLOCAandseismicevents.Theclevispinmustberemovedtoliftandweighthebasket.IcebasketsarenolongerunpinnedduringModes3and4,andrecollection ofcognizant plantpersonnel isthatthisprocedural optionhasnotbeenusedinmorethantenyears.Archiverecordsarebeingreviewedtoascertain thelasttimethebasketswereunpinnedinthismanner.Becauseonlinebasketunpinning isnolongernecessary fortheperformance ofbasketweighing, theprocedure willberevisedtoeliminate thisoption.ItisexpectedthatanupdatetothisinterimLERwillbesubmitted byApril3,1998.q8Psi20055 PDRADOCI4,0S

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