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{{#Wiki_filter:AECDISTRIBUTIONFORPART50DOCKETMATERIALTEMPORARYFORMFROM'iagaraMohawkPowerCorpoSyracuse~N.Y.13202FJ.SchneiderDATEOFDOC:tion8<<1-72DATEREC'D8.-42LTRFIiRMORPTTo:Mr.SkovholtORIGCC('ENTAECPDR~SENTLOCALPDRCLASS:UPROPINFODEIPTION:Ltrreportinganincidenton7-27-72~regardinganincreasingrecirculationsystva5Wpackingleakagewithinthedrywell."NoCYSREC'DENCLOSURES:DOCKETNo:0220PLANTNAMES:NineMble00NOTREMOVEII%NO'RFtIHFoaACTIONINFORMATION-2ABBUTLERLW/CopiesCLARK(L)W/CopiesGOLLER(L)W/CopiesKNIELLW/CopiesSCHWENCER(L)W/CopiesSTOLZ(L)W/CopiesVASSALLOLW/CopiesH.DENTONW/CopiesSCHEMEL(L)W/-=-Copies-ZIEMANNLW/9CopiesCHITtAtOOD(FM)W/CopiesDICKER(ENVIRO)--=--=--W/-=CopiesKNIGHTONENVIROW/CopiesW/CopiesW/CopiesiNTERNALDISTRXBUTIONGHAECPDRVOGCpROOMP-506AWNi&i'TZING/STAr(('ASEGIAl4BUSSO~BOYD-L(Btla)DEYOUNG-L(PWR)~SKOVHOLT-LP.COLLINSREGOPR.SPILEIhREGIOH(2)~ioRRISvSTEELETECHREVIEW+HENDRXEg/SCHROEDER~MACCARYLANGEPAWLICKX,SHAOVKNUTHv'TELLOiMOORE~THOMPSON>TEDESCOvLONG~LAINASBENAROYAlrVOLL14ER~ENTON(4)GRXMESGAMMXLLKASTNERBALIJQU)FINEEHVIROMOLL?RDICKERKNIGHTONYOUNGBIOOD'ROJL'CTLEADERHARLESSPSMSMILEXNUSSBAUMERLICASST.SERVICEMASONWIISONKARISMITHGEARINDXGGSTEETSWADESHAFERBROWNJAPIHDBRAITMANSALTZMANPIAHSMODOHALDDUDEC~MILES~1-'LOCALPDROsweoNY~l-mIE(LAUGHL-.NVl<<NSIC(BUCHANAN)1-ASLB-Yoaz/SAYREWOODWARD/HEST.~16CYSACRSHOLDINGEXTERNALDXSTBIBUTXON(X(5)(9)-NATIONALLAB>sANL/ORNL/PNL1-R.CARROLL-OC~GTB3271>>R.CATLIN)A-170-GT1CONSULANT'SNEWMARK/BLUAA/AGABIAN1-PDR-SAN/LA/NY,1-GERALDLELLUCHEBROOKHAVENNAT.LAB1BOLANDpIDAHOFALLS~IDAHO(50>>331Only)l-aD..mrzza..F-3o9GT F~~(~'\-*~~~o~IP('i c;.'t"'05~0E-.~>~IN'tuG<>gal~9~IJUITORy.,f~~ambjRegtitafory',.FfteCy-..NIAGARA~&#x17d;MOHAWK300ERIE8OUIEVARDWESTSYRACUSE,H.Y.IS202NIAGARAMOHAWKPOWERCORPORATIONAugust1,1972Mr.DonaldJ.SkovholtAssistantDirectorforReactorOperationsDivisionofReactorLicensingUnitedStatesAtomicEnergyCommissionWashington,D.C.205458
{{#Wiki_filter:AECDISTRIBUTION FORPART50DOCKETMATERIALTEMPORARY FORMFROM'iagara MohawkPowerCorpoSyracuse~
N.Y.13202FJ.Schneider DATEOFDOC:tion8<<1-72DATEREC'D8.-42LTRFIiRMORPTTo:Mr.SkovholtORIGCC('ENTAECPDR~SENTLOCALPDRCLASS:UPROPINFODEIPTION:Ltrreporting anincidenton7-27-72~regarding anincreasing recirculation systva5Wpackingleakagewithinthedrywell."
NoCYSREC'DENCLOSURES:
DOCKETNo:0220PLANTNAMES:NineMble00NOTREMOVEII%NO'RFtIH FoaACTIONINFORMATION
-2ABBUTLERLW/CopiesCLARK(L)W/CopiesGOLLER(L)
W/CopiesKNIELLW/CopiesSCHWENCER(L)
W/CopiesSTOLZ(L)W/CopiesVASSALLOLW/CopiesH.DENTONW/CopiesSCHEMEL(L)W/-=-Copies-ZIEMANNLW/9CopiesCHITtAtOOD(FM
)W/CopiesDICKER(ENVIRO)
--=--=--W/-=CopiesKNIGHTONENVIROW/CopiesW/CopiesW/CopiesiNTERNALDISTRXBUTION GHAECPDRVOGCpROOMP-506AWNi&i'TZING/STAr(('ASE GIAl4BUSSO
~BOYD-L(Btla)
DEYOUNG-L(PWR)
~SKOVHOLT-L P.COLLINSREGOPR.SPILEIhREGIOH(2)~ioRRISvSTEELETECHREVIEW+HENDRXEg/SCHROEDER
~MACCARYLANGEPAWLICKX,SHAOVKNUTHv'TELLOiMOORE~THOMPSON>TEDESCOvLONG~LAINASBENAROYAlrVOLL14ER~ENTON(4)GRXMESGAMMXLLKASTNERBALIJQU)FINEEHVIROMOLL?RDICKERKNIGHTONYOUNGBIOOD
'ROJL'CTLEADERHARLESSPSMSMILEXNUSSBAUMER LICASST.SERVICEMASONWIISONKARISMITHGEARINDXGGSTEETSWADESHAFERBROWNJAPIHDBRAITMANSALTZMANPIAHSMODOHALDDUDEC~MILES~1-'LOCAL PDROsweoNY~l-mIE(LAUGHL-.N Vl<<NSIC(BUCHANAN) 1-ASLB-Yoaz/SAYRE WOODWARD/HE ST.~16CYSACRSHOLDINGEXTERNALDXSTBIBUTXON (X(5)(9)-NATIONAL LAB>sANL/ORNL/PNL 1-R.CARROLL-OC~
GTB3271>>R.CATLIN)A-170-GT1CONSULANT'S NEWMARK/BLUAA/AGABIAN 1-PDR-SAN/LA/NY, 1-GERALDLELLUCHEBROOKHAVEN NAT.LAB1BOLANDpIDAHOFALLS~IDAHO(50>>331 Only)l-aD..mrzza..F-3o9GT F~~(~'\-*~~~o~IP('i c;.'t"'05~0E-.~>~IN'tuG<
>gal~9~IJUITORy
.,f~~ambjRegtitafory',.
FfteCy-..NIAGARA~&#x17d;MOHAWK300ERIE8OUIEVARDWESTSYRACUSE, H.Y.IS202NIAGARAMOHAWKPOWERCORPORATION August1,1972Mr.DonaldJ.SkovholtAssistant DirectorforReactorOperations DivisionofReactorLicensing UnitedStatesAtomicEnergyCommission Washington, D.C.205458


==DearMr.Skovholt:==
==DearMr.Skovholt:==
Re:ProvisionalOperatingLicense:DPR-17DocketNo.:50-220AppendixA(TechnicalSpecifications3.3.1aand3.3.1b)ofProvisionalOperatingLicenseDPR-17forNineMilePointNuclearStation,UnitOlstates:3.3.1a"Aftercompletionofthestartuptestprogramanddemonstrationofplantelectricaloutput,theprimarycontainmentatmosphereshallbereducedtolessthanfivepercentoxygenwithnitrogengaswheneverthereactorcoolantpressureisgreaterthan110psigandthereactorisinthepoweroperatingcondition,exceptas.specifiedin"b"below."3.3.1b"Withinthe24hourperiodsubsequenttoincreaseofthereactorcoolantpressureabove110psigwheneverthereactorisinthepower.operatingconditj.on,thecontainmentatmosphereoxygenconcentrationshallbereducedtolessthanfivepercentbyweightandmaintainedinthiscon-dition.Deinertingwascommenced24hourspriortoamajorrefuelingoutageorotherscheduledshutdown."AnorderlyshutdownofUnit81,NineMilePointNuclearStationwasbegunonJuly27,1972duetoincreasingrecirculationsystemvalvepackingleakagewithinthedrywell.Followingrepackingoftheaffectedvalves,theunitwasrestartedonJuly30,1972andreached110psigat0700thatday.  
 
Re:Provisional Operating License:DPR-17DocketNo.:50-220AppendixA(Technical Specifications 3.3.1aand3.3.1b)ofProvisional Operating LicenseDPR-17forNineMilePointNuclearStation,UnitOlstates:3.3.1a"Aftercompletion ofthestartuptestprogramanddemonstration ofplantelectrical output,theprimarycontainment atmosphere shallbereducedtolessthanfivepercentoxygenwithnitrogengaswheneverthereactorcoolantpressureisgreaterthan110psigandthereactorisinthepoweroperating condition, exceptas.specified in"b"below."3.3.1b"Withinthe24hourperiodsubsequent toincreaseofthereactorcoolantpressureabove110psigwheneverthereactorisinthepower.operating conditj.on, thecontainment atmosphere oxygenconcentration shallbereducedtolessthanfivepercentbyweightandmaintained inthiscon-dition.Deinerting wascommenced 24hourspriortoamajorrefueling outageorotherscheduled shutdown."
AnorderlyshutdownofUnit81,NineMilePointNuclearStationwasbegunonJuly27,1972duetoincreasing recirculation systemvalvepackingleakagewithinthedrywell.Following repacking oftheaffectedvalves,theunitwasrestarted onJuly30,1972andreached110psigat0700thatday.  
)~~~~I4I4~~
)~~~~I4I4~~
Mx.DonaldJ.Skovho1tUnitedStatesAtomicEnergyCommission0Page2AnagreementhadbeenmadepriortoshutdownwithNationalCylinderGas,anitrogengassupplierinConshohocken,Pa.fordeliveryoftwotrucksofnitrogenonJuly30,1972.Normalinertingrequires4-6hoursandcouldeasilybeaccomplishedthatday,wellwithintherequired24hours.However,unknowntostationpersonnel,thegassupplierwashavingdifficultyinobtainingdriversforthenecessarytwotrucksofnitrogen.ThestartupoftheUnitbeyond110psigcontinued,basedupontheprioragreementthatnitrogenwouldbearrivingforinertingthatday.Atmidnight,July30,1972withnonitrogenforinertingonsite,itwasdeemednecessarybystationpersonneltoholdthermalpowerto1200MN(t)andnotcontinuewiththenormalscheduledstartupuntilthedrywellwasinerted.ThefirsttruckofnitrogenarrivedatthestationthemorningofJuly31,1972andinertingbeganimmediately.Thedrywellatmospherewasreducedtolessthanfivepercentoxygenat134Sthatday,reaching3.9percentat1400.Thestartupscheduledthencontinued.Thedrywellatmosphereremainedwithinspecificationfollowinginertingandwiththearrivalofthesecondtrucklateintheevening,July31,1972wasreducedtoitspresentlevelofonepercentbyweightofoxygen.Verytrulyyours,F.J.Schn'eiderVicePresidenteOperations 1tllJt}}
Mx.DonaldJ.Skovho1tUnitedStatesAtomicEnergyCommission 0Page2Anagreement hadbeenmadepriortoshutdownwithNationalCylinderGas,anitrogengassupplierinConshohocken, Pa.fordeliveryoftwotrucksofnitrogenonJuly30,1972.Normalinertingrequires4-6hoursandcouldeasilybeaccomplished thatday,wellwithintherequired24hours.However,unknowntostationpersonnel, thegassupplierwashavingdifficulty inobtaining driversforthenecessary twotrucksofnitrogen.
ThestartupoftheUnitbeyond110psigcontinued, basedupontheprioragreement thatnitrogenwouldbearrivingforinertingthatday.Atmidnight, July30,1972withnonitrogenforinertingonsite,itwasdeemednecessary bystationpersonnel toholdthermalpowerto1200MN(t)andnotcontinuewiththenormalscheduled startupuntilthedrywellwasinerted.ThefirsttruckofnitrogenarrivedatthestationthemorningofJuly31,1972andinertingbeganimmediately.
Thedrywellatmosphere wasreducedtolessthanfivepercentoxygenat134Sthatday,reaching3.9percentat1400.Thestartupscheduled thencontinued.
Thedrywellatmosphere remainedwithinspecification following inertingandwiththearrivalofthesecondtrucklateintheevening,July31,1972wasreducedtoitspresentlevelofonepercentbyweightofoxygen.Verytrulyyours,F.J.Schn'eider VicePresident eOperations 1tllJt}}

Revision as of 23:18, 29 June 2018

Nine Mile Point Unit 1 - Letter Reporting an Orderly Shutdown on July 27, 1972 Due to Increasing Recirculation System Valve Packing Leakage within the Drywell
ML17037C130
Person / Time
Site: Nine Mile Point Constellation icon.png
Issue date: 08/01/1972
From: Schneider F J
Niagara Mohawk Power Corp
To: Skovholt D J
US Atomic Energy Commission (AEC)
References
Download: ML17037C130 (6)
v • d • e


Text

AECDISTRIBUTION FORPART50DOCKETMATERIALTEMPORARY FORMFROM'iagara MohawkPowerCorpoSyracuse~

N.Y.13202FJ.Schneider DATEOFDOC:tion8<<1-72DATEREC'D8.-42LTRFIiRMORPTTo:Mr.SkovholtORIGCC('ENTAECPDR~SENTLOCALPDRCLASS:UPROPINFODEIPTION:Ltrreporting anincidenton7-27-72~regarding anincreasing recirculation systva5Wpackingleakagewithinthedrywell."

NoCYSREC'DENCLOSURES:

DOCKETNo:0220PLANTNAMES:NineMble00NOTREMOVEII%NO'RFtIH FoaACTIONINFORMATION

-2ABBUTLERLW/CopiesCLARK(L)W/CopiesGOLLER(L)

W/CopiesKNIELLW/CopiesSCHWENCER(L)

W/CopiesSTOLZ(L)W/CopiesVASSALLOLW/CopiesH.DENTONW/CopiesSCHEMEL(L)W/-=-Copies-ZIEMANNLW/9CopiesCHITtAtOOD(FM

)W/CopiesDICKER(ENVIRO)

--=--=--W/-=CopiesKNIGHTONENVIROW/CopiesW/CopiesW/CopiesiNTERNALDISTRXBUTION GHAECPDRVOGCpROOMP-506AWNi&i'TZING/STAr(('ASE GIAl4BUSSO

~BOYD-L(Btla)

DEYOUNG-L(PWR)

~SKOVHOLT-L P.COLLINSREGOPR.SPILEIhREGIOH(2)~ioRRISvSTEELETECHREVIEW+HENDRXEg/SCHROEDER

~MACCARYLANGEPAWLICKX,SHAOVKNUTHv'TELLOiMOORE~THOMPSON>TEDESCOvLONG~LAINASBENAROYAlrVOLL14ER~ENTON(4)GRXMESGAMMXLLKASTNERBALIJQU)FINEEHVIROMOLL?RDICKERKNIGHTONYOUNGBIOOD

'ROJL'CTLEADERHARLESSPSMSMILEXNUSSBAUMER LICASST.SERVICEMASONWIISONKARISMITHGEARINDXGGSTEETSWADESHAFERBROWNJAPIHDBRAITMANSALTZMANPIAHSMODOHALDDUDEC~MILES~1-'LOCAL PDROsweoNY~l-mIE(LAUGHL-.N Vl<<NSIC(BUCHANAN) 1-ASLB-Yoaz/SAYRE WOODWARD/HE ST.~16CYSACRSHOLDINGEXTERNALDXSTBIBUTXON (X(5)(9)-NATIONAL LAB>sANL/ORNL/PNL 1-R.CARROLL-OC~

GTB3271>>R.CATLIN)A-170-GT1CONSULANT'S NEWMARK/BLUAA/AGABIAN 1-PDR-SAN/LA/NY, 1-GERALDLELLUCHEBROOKHAVEN NAT.LAB1BOLANDpIDAHOFALLS~IDAHO(50>>331 Only)l-aD..mrzza..F-3o9GT F~~(~'\-*~~~o~IP('i c;.'t"'05~0E-.~>~IN'tuG<

>gal~9~IJUITORy

.,f~~ambjRegtitafory',.

FfteCy-..NIAGARA~ŽMOHAWK300ERIE8OUIEVARDWESTSYRACUSE, H.Y.IS202NIAGARAMOHAWKPOWERCORPORATION August1,1972Mr.DonaldJ.SkovholtAssistant DirectorforReactorOperations DivisionofReactorLicensing UnitedStatesAtomicEnergyCommission Washington, D.C.205458

DearMr.Skovholt:

Re:Provisional Operating License:DPR-17DocketNo.:50-220AppendixA(Technical Specifications 3.3.1aand3.3.1b)ofProvisional Operating LicenseDPR-17forNineMilePointNuclearStation,UnitOlstates:3.3.1a"Aftercompletion ofthestartuptestprogramanddemonstration ofplantelectrical output,theprimarycontainment atmosphere shallbereducedtolessthanfivepercentoxygenwithnitrogengaswheneverthereactorcoolantpressureisgreaterthan110psigandthereactorisinthepoweroperating condition, exceptas.specified in"b"below."3.3.1b"Withinthe24hourperiodsubsequent toincreaseofthereactorcoolantpressureabove110psigwheneverthereactorisinthepower.operating conditj.on, thecontainment atmosphere oxygenconcentration shallbereducedtolessthanfivepercentbyweightandmaintained inthiscon-dition.Deinerting wascommenced 24hourspriortoamajorrefueling outageorotherscheduled shutdown."

AnorderlyshutdownofUnit81,NineMilePointNuclearStationwasbegunonJuly27,1972duetoincreasing recirculation systemvalvepackingleakagewithinthedrywell.Following repacking oftheaffectedvalves,theunitwasrestarted onJuly30,1972andreached110psigat0700thatday.

)~~~~I4I4~~

Mx.DonaldJ.Skovho1tUnitedStatesAtomicEnergyCommission 0Page2Anagreement hadbeenmadepriortoshutdownwithNationalCylinderGas,anitrogengassupplierinConshohocken, Pa.fordeliveryoftwotrucksofnitrogenonJuly30,1972.Normalinertingrequires4-6hoursandcouldeasilybeaccomplished thatday,wellwithintherequired24hours.However,unknowntostationpersonnel, thegassupplierwashavingdifficulty inobtaining driversforthenecessary twotrucksofnitrogen.

ThestartupoftheUnitbeyond110psigcontinued, basedupontheprioragreement thatnitrogenwouldbearrivingforinertingthatday.Atmidnight, July30,1972withnonitrogenforinertingonsite,itwasdeemednecessary bystationpersonnel toholdthermalpowerto1200MN(t)andnotcontinuewiththenormalscheduled startupuntilthedrywellwasinerted.ThefirsttruckofnitrogenarrivedatthestationthemorningofJuly31,1972andinertingbeganimmediately.

Thedrywellatmosphere wasreducedtolessthanfivepercentoxygenat134Sthatday,reaching3.9percentat1400.Thestartupscheduled thencontinued.

Thedrywellatmosphere remainedwithinspecification following inertingandwiththearrivalofthesecondtrucklateintheevening,July31,1972wasreducedtoitspresentlevelofonepercentbyweightofoxygen.Verytrulyyours,F.J.Schn'eider VicePresident eOperations 1tllJt

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