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=Text=
=Text=
{{#Wiki_filter:PR.IC3R.IEY'..CELERATED RIDSPROCESSING)
{{#Wiki_filter:PR.IC3 R.I EY'..CELERATED RIDS PROCESSING)
REGULATORY INFORMATION DISTRIBUTION SYSTEM(RIDS}ACCESSION NBR:9410260086 DOC.DATE:
REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS}ACCESSION NBR:9410260086 DOC.DATE: 94/09/30 NOTARIZED:
94/09/30NOTARIZED:
NO DOCKET FACIL:50-315 Donald C.Cook Nuclear Power Plant, Unit 1, Indiana M 05000315 AUTH.NAME AUTHOR AFFILIATION JANISSE,J.D.
NODOCKETFACIL:50-315 DonaldC.CookNuclearPowerPlant,Unit1,IndianaM05000315AUTH.NAMEAUTHORAFFILIATION JANISSE,J.D.
Indiana Michigan Power Co.(formerly Indiana&Michigan Ele BUBLICK,,D.L.
IndianaMichiganPowerCo.(formerly Indiana&MichiganEleBUBLICK,,D.L.
Indiana Michigan Power Co.(formerly Indiana&Michigan Ele BLIND,A.A.
IndianaMichiganPowerCo.(formerly Indiana&MichiganEleBLIND,A.A.
Indiana Michigan Power Co.(formerly Indiana&Michigan Ele RECIP.NAME RECIPIENT AFFILIATION R  
IndianaMichiganPowerCo.(formerly Indiana&MichiganEleRECIP.NAME RECIPIENT AFFILIATION R


==SUBJECT:==
==SUBJECT:==
Monthlyoperating reptforSept1994forDCCookNuclearPlant,Unit1.W/941017 ltr.DISTRIBUTION CODE:IE24DCOPIESRECEIVED:LTR ENCLSIZE:TITLE:MonthlyOperating Report(perTechSpecs)NOTESRECIPIENT IDCODE/NAME PD3-1PDINTERNAL:
Monthly operating rept for Sept 1994 for DC Cook Nuclear Plant, Unit 1.W/941017 ltr.DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR ENCL SIZE: TITLE: Monthly Operating Report (per Tech Specs)NOTES RECIPIENT ID CODE/NAME PD3-1 PD INTERNAL: AEOD/SPD/RRAB NRR/DORS/OEAB RGN3 EXTERNAL: EG&G BRYCE,J.H NRC PDR COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 1 1 RECIPIENT ID CODE/NAME HICKMAN,J FILE CENTER 01=/rRCB-NOAC COPIES LTTR ENCL 1 1 1 1 1 1 1 1 D 0 C N NOTE TO ALL"RIDS" RECIPIENTS:
AEOD/SPD/RRAB NRR/DORS/OEAB RGN3EXTERNAL:
PLEASE HELP US TO REDUCE iVKSTE!CONTACT THE DOCL'if ENT CONTROL DESK, ROOhf PI-37 (EXT.504-083)TO ELI hf!NATE YOUR NAif L PRO%i DISTRIBUTION LISTS I'OR DOC!.0 IEN'I'S YOI: DON" I'L'ED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 10 ENCL 10 Indiana Michigan Power Company Cook Nuclear Plant One Cook Place Bridgrnan, Ml 49106 616 465 5901 October 17, 1994 U.S.Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.20555 Gentlemen:
EG&GBRYCE,J.H NRCPDRCOPIESLTTRENCL111111111111RECIPIENT IDCODE/NAME HICKMAN,J FILECENTER01=/rRCB-NOACCOPIESLTTRENCL11111111D0CNNOTETOALL"RIDS"RECIPIENTS:
Pursuant to the requirements of Donald C.Cook Nuclear Plant Unit 1 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the month of September 1994 is submitted.
PLEASEHELPUSTOREDUCEiVKSTE!CONTACTTHEDOCL'ifENTCONTROLDESK,ROOhfPI-37(EXT.504-083)TOELIhf!NATEYOURNAifLPRO%iDISTRIBUTION LISTSI'ORDOC!.0IEN'I'SYOI:DON"I'L'ED!TOTALNUMBEROFCOPIESREQUIRED:
Respectfully, A.A.Blind Plant Manager Attachment co NRC Region III D.R.Hahn R.C.Callen S.Hamming Z.G.Keppler INPO Records Center ANI Nuclear Engineering Department E.E.Fitzpatrick W.G.Smith, Jr.S.J.Brewer D.W.Paul S.H.Steinhart J.L.Leichner J.A.Isom D.G.Turner E.A.Smarrella J.C.Krieger D.F.Krause M.E.Russo 9410260086 940930 PDR ADOCK 05000315 R'DR N.R.C.OPERATING DATA REPORT DOCKET NO.50-315 DATE.04/Oct/94 COMPLETED BYJ D Janisse TELEPHONE 616-465-5901 OPERATING STATUS 1.Unit Name D.C.Cook Unit 1 2.Reporting Period September notes 3.Licensed Thermal Power (MWt)3250 4.Name Plate Rating (Gross MWe)1152 5.Design Electrical Rating (Net MWe)1020 6.Maximum Dependable Capacity (GROSS MWe)1056 7.Maximum Dependable Capacity (Net MWe)1000 8.If Changes Occur in Capacity Ratings (Items no.3 through 7)Since Last Report Give Reasons 9.'0.ower evei o ic estricte.Reasons For Restrictions.
LTTR10ENCL10 IndianaMichiganPowerCompanyCookNuclearPlantOneCookPlaceBridgrnan, Ml491066164655901October17,1994U.S.NuclearRegulatory Commission ATTN:DocumentControlDeskWashington, D.C.20555Gentlemen:
If Any: ny e e 11.Hours in Reporting Period 12.No.of Hrs.Reactor Was Critical 13.Reactor Reserve Shutdown Hours 14.Hours Generator on Line 15.Unit Reserve Shutdown Hours 16.Gross Therm.Energy Gen.(MWH)17.Gross Elect.Energy Gen.(MWH)18.Net Elect.Energy Gen.(MWH)19.Unit Service Factor 20.Unit Availability Factor 21.Unit Capacity Factor (MDC Net)22.Unit Capacity Factor (DER Net)23.Unit Forced Outage Rate 24.Shutdowns Scheduled over Next Six None is o.r.to ate 720.0 6552.0 720.0 4048.5 0.0 0.0 715.9 4007.0 0.0 0.0 2116670 11431649 678490 3643810 652628 3501826 99.4 61.2 99.4 61.2 90.6 53.4 88.9 52.4 0.0 0.0 Months (Type.Date.and umm.173112.0 129702.9 463.0 127615.6 321.0 374957424 121666470 117023624 74.6 74.6 67.3 65.6 5.9 Duration):
Pursuanttotherequirements ofDonaldC.CookNuclearPlantUnit1Technical Specification 6.9.1.10, theattachedMonthlyOperating ReportforthemonthofSeptember 1994issubmitted.
25.ut own n o eport erio.stimate ate o artup: 26.nits in est atus rior to ommercia INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION I peration: Forecast Achieved 0~I AVERAGE DAILY POWER LEVEL (MWe-Net)DOCKET NO.50-315 UNIT ONE DATE 10/Oct/94 COMPLETED BY J D Janisse TELEPHONE 616-465-5901 MONTH.September DAY 94/09/01 94/09/02 94/09/03 94/09/04 94/09/05 94/09/06 94/09/07 94/09/08 94/09/09 94/09/10 94/09/11 94/09/12 94/09/13 94/09/14 94/09/15 94/09/16 AVERAGE DAILY POWER LEVEL 1021 1020 1014 1017 744 949 1015 1014 1000 598 450 431 175 614 997 1009 DAY 94/09/17 94/09/18 94/09/19 94/09/20 94/09/21 94/09/22 94/09/23 94/09/24 94/09/25 94/09/26 94/09/27 94/09/28 94/09/29 94/09/30 AVERAGE DAILY POWER LEVEL 1009 1013 10051006 1012 1010 971 1024 1018 1017 1015 1014 1005 1006 DOCKET N UNIT NAME: COMPLETED BY: TELEPHONE:
Respectfully, A.A.BlindPlantManagerAttachment coNRCRegionIIID.R.HahnR.C.CallenS.HammingZ.G.KepplerINPORecordsCenterANINuclearEngineering Department E.E.Fitzpatrick W.G.Smith,Jr.S.J.BrewerD.W.PaulS.H.Steinhart J.L.LeichnerJ.A.IsomD.G.TurnerE.A.Smarrella J.C.KriegerD.F.KrauseM.E.Russo9410260086 940930PDRADOCK05000315R'DR N.R.C.OPERATING DATAREPORTDOCKETNO.50-315DATE.04/Oct/94 COMPLETED BYJDJanisseTELEPHONE 616-465-5901 OPERATING STATUS1.UnitNameD.C.CookUnit12.Reporting PeriodSeptember notes3.LicensedThermalPower(MWt)32504.NamePlateRating(GrossMWe)11525.DesignElectrical Rating(NetMWe)10206.MaximumDependable Capacity(GROSSMWe)10567.MaximumDependable Capacity(NetMWe)10008.IfChangesOccurinCapacityRatings(Itemsno.3through7)SinceLastReportGiveReasons9.'0.owereveioicestricte.ReasonsForRestrictions.
DATE: PAGE 50-315 D.C.Cook Unit 1 D.L.Bublick (616)465-5901 October 7,1994 Page.1 of 2 MONTHLY OPERATING ACTIVITIES
IfAny:nyee11.HoursinReporting Period12.No.ofHrs.ReactorWasCritical13.ReactorReserveShutdownHours14.HoursGenerator onLine15.UnitReserveShutdownHours16.GrossTherm.EnergyGen.(MWH)17.GrossElect.EnergyGen.(MWH)18.NetElect.EnergyGen.(MWH)19.UnitServiceFactor20.UnitAvailability Factor21.UnitCapacityFactor(MDCNet)22.UnitCapacityFactor(DERNet)23.UnitForcedOutageRate24.Shutdowns Scheduled overNextSixNoneiso.r.toate720.06552.0720.04048.50.00.0715.94007.00.00.02116670114316496784903643810652628350182699.461.299.461.290.653.488.952.40.00.0Months(Type.Date.andumm.173112.0129702.9463.0127615.6321.0374957424 121666470 117023624 74.674.667.365.65.9Duration):
-SEPTEMBER 1994 HIGHLIGHTS The unit entered this reporting period in Mode 1 at 1004 RTP.The unit exited this reporting period in Mode 1 at 100>RTP.There were no challenges to the pressurizer safety valves or power operated relief valves.Gross Electrical generation for'the month of September was 678490 MWH.DETAILS 9-5-94 0845 Commenced Reactor power reduction due to problems with 1-WMO-13 (f13 Circ.Water Pump Discharge).
25.utownnoeporterio.stimateateoartup:26.nitsinestatusriortoommerciaINITIALCRITICALITY INITIALELECTRICITY COMMERCIAL OPERATION Iperation:ForecastAchieved 0~I AVERAGEDAILYPOWERLEVEL(MWe-Net)
Valve actuator appeared to be working itself loose.9-6-94 9-9-94 9-10-94 9-11-94 9-12-94 1000 1350 1400 1942 1450 1730 0825 2031 Reactor power at 494 RTP.Commenced reactor power increase to 1004 RTP.Reactor power stabilized at 1004 RTP.Commenced Reactor power reduction for Biocide application in the Circ.Water System.Started Circ.Water System Biocide application.
DOCKETNO.50-315UNITONEDATE10/Oct/94 COMPLETED BYJDJanisseTELEPHONE 616-465-5901 MONTH.September DAY94/09/0194/09/0294/09/0394/09/0494/09/0594/09/0694/09/0794/09/0894/09/0994/09/1094/09/1194/09/1294/09/1394/09/1494/09/1594/09/16AVERAGEDAILYPOWERLEVEL10211020101410177449491015101410005984504311756149971009DAY94/09/1794/09/1894/09/1994/09/2094/09/2194/09/2294/09/2394/09/2494/09/2594/09/2694/09/2794/09/2894/09/2994/09/30AVERAGEDAILYPOWERLEVEL1009101310051006101210109711024101810171015101410051006 DOCKETNUNITNAME:COMPLETED BY:TELEPHONE:
Reactor power stabilized at 50%RTP.Circ.Water System Biocide application complete.Commenced Reactor power reduction to allow oil addition to gl3 RCP, repair of West MFP Suction Strainer and repairs to the Main Turbine Trip Solenoid.9-13-94 0335 0742 0938 1435 Reactor power stabilized at 30>RTP.Commenced Reactor power reduction.
DATE:PAGE50-315D.C.CookUnit1D.L.Bublick(616)465-5901October7,1994Page.1of2MONTHLYOPERATING ACTIVITIES
Reactor power stabilized at 15~RTP.Commenced Reactor power increase.
-SEPTEMBER 1994HIGHLIGHTS Theunitenteredthisreporting periodinMode1at1004RTP.Theunitexitedthisreporting periodinMode1at100>RTP.Therewerenochallenges tothepressurizer safetyvalvesorpoweroperatedreliefvalves.GrossElectrical generation for'themonthofSeptember was678490MWH.DETAILS9-5-940845Commenced Reactorpowerreduction duetoproblemswith1-WMO-13(f13Circ.WaterPumpDischarge).
DOCKET N UNIT NAME: COMPLETED BY: TELEPHONE:
Valveactuatorappearedtobeworkingitselfloose.9-6-949-9-949-10-949-11-949-12-9410001350140019421450173008252031Reactorpowerat494RTP.Commenced reactorpowerincreaseto1004RTP.Reactorpowerstabilized at1004RTP.Commenced Reactorpowerreduction forBiocideapplication intheCirc.WaterSystem.StartedCirc.WaterSystemBiocideapplication.
DATE PAGE: 50-315 D.C.Cook Unit 1 D.L.Bublick (616)465-5901 October 7,1994 Page 2 of 2 MONTHLY OPERATING ACTIVITIES
Reactorpowerstabilized at50%RTP.Circ.WaterSystemBiocideapplication complete.
-SEPTEMBER 1994 1710 1945 0505 Reactor power stabilized at 304 RTP.Commenced Reactor power increase.Reactor power stabilized at 1004 RTP.
Commenced Reactorpowerreduction toallowoiladditiontogl3RCP,repairofWestMFPSuctionStrainerandrepairstotheMainTurbineTripSolenoid.
UNIT SHUTDOWNS AND POWER REDUCTIONS Report Month: SEPTEMBER 1994 UNIT NAME DATE: COMPLETED BY: TELEPHONE:
9-13-940335074209381435Reactorpowerstabilized at30>RTP.Commenced Reactorpowerreduction.
PAGE: D.C.COOK UNIT, 1 Oct 7, 1994 D.L.Bublick (616)465-5901 Page 1 of 1 DURATION NO.DATE TYPE HOURS METHOD OF SHUTTING DOWN REASON~REACTOR~LICENSEE EVENT SYSTEM COMPONENT CAUSE AND CORRECTIVE ACTION REPORT NO CODE CODE~TO PREVENT RECURRENCE 311 940905 S 3.8 N/A N/A N/A After decreasing and stabilizing Reactor Power at 49%RTP on 940905, maintenance activities commenced on 1-WMO-13 (813 Circ.~Water Pump Discharge) valve actuator.The reactor was returned to 100%RTP on 940906 at 1400.312 940910 S 313 940913 S 17.6 N/A N/A N/A N/A N/A N/A N/A After increasing and stabilizing reactor power at 100%RTP on 940906, reactor power was reduced to 50%RTP on 940910 to support.Zebra Mussel cleanup in the Circ.Water System.The Reactor was returned to 100%RTP on 940915 at 0505.After decreasing and stabilizing Reactor Power at 15%RTP on 940913, oil addition commenced to f13 RCP.The reactor was returned to 100%RTP on 940915 a 0505.1 F: Forced S: Scheduled 2 Reason: A: Equipment Failure (Explain)B: Maintenance or Test C: Refueling D: Regulatory Restriction E: Operator Training and License Examination F: Administrative G: Operational Error (Explain)H: Other (Explain)3 Method: 1: Manual 2: Manual Scram 3: Automatic Scram 4: Other (Explain)4 Exhibit G-Instructions for preparation of data entry sheets for Licensee Event Report (LER)File (NUREG 1061)5 Exhibit I Same Source r i~r A}}
Reactorpowerstabilized at15~RTP.Commenced Reactorpowerincrease.
DOCKETNUNITNAME:COMPLETED BY:TELEPHONE:
DATEPAGE:50-315D.C.CookUnit1D.L.Bublick(616)465-5901October7,1994Page2of2MONTHLYOPERATING ACTIVITIES
-SEPTEMBER 1994171019450505Reactorpowerstabilized at304RTP.Commenced Reactorpowerincrease.
Reactorpowerstabilized at1004RTP.
UNITSHUTDOWNS ANDPOWERREDUCTIONS ReportMonth:SEPTEMBER 1994UNITNAMEDATE:COMPLETED BY:TELEPHONE:
PAGE:D.C.COOKUNIT,1Oct7,1994D.L.Bublick(616)465-5901Page1of1DURATIONNO.DATETYPEHOURSMETHODOFSHUTTINGDOWNREASON~REACTOR~LICENSEEEVENTSYSTEMCOMPONENT CAUSEANDCORRECTIVE ACTIONREPORTNOCODECODE~TOPREVENTRECURRENCE 311940905S3.8N/AN/AN/AAfterdecreasing andstabilizing ReactorPowerat49%RTPon940905,maintenance activities commenced on1-WMO-13(813Circ.~WaterPumpDischarge) valveactuator.
Thereactorwasreturnedto100%RTPon940906at1400.312940910S313940913S17.6N/AN/AN/AN/AN/AN/AN/AAfterincreasing andstabilizing reactorpowerat100%RTPon940906,reactorpowerwasreducedto50%RTPon940910tosupport.ZebraMusselcleanupintheCirc.WaterSystem.TheReactorwasreturnedto100%RTPon940915at0505.Afterdecreasing andstabilizing ReactorPowerat15%RTPon940913,oiladditioncommenced tof13RCP.Thereactorwasreturnedto100%RTPon940915a0505.1F:ForcedS:Scheduled 2Reason:A:Equipment Failure(Explain)
B:Maintenance orTestC:Refueling D:Regulatory Restriction E:OperatorTrainingandLicenseExamination F:Administrative G:Operational Error(Explain)
H:Other(Explain) 3Method:1:Manual2:ManualScram3:Automatic Scram4:Other(Explain) 4ExhibitG-Instructions forpreparation ofdataentrysheetsforLicenseeEventReport(LER)File(NUREG1061)5ExhibitISameSource ri~rA}}

Revision as of 08:15, 6 July 2018

Monthly Operating Rept for Sept 1994 for DC Cook Nuclear Plant,Unit 1.W/941017 Ltr
ML17332A350
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 09/30/1994
From: BLIND A A, BUBLICK D L, JANISSE J D
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 9410260086
Download: ML17332A350 (9)
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Text

PR.IC3 R.I EY'..CELERATED RIDS PROCESSING)

REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS}ACCESSION NBR:9410260086 DOC.DATE: 94/09/30 NOTARIZED:

NO DOCKET FACIL:50-315 Donald C.Cook Nuclear Power Plant, Unit 1, Indiana M 05000315 AUTH.NAME AUTHOR AFFILIATION JANISSE,J.D.

Indiana Michigan Power Co.(formerly Indiana&Michigan Ele BUBLICK,,D.L.

Indiana Michigan Power Co.(formerly Indiana&Michigan Ele BLIND,A.A.

Indiana Michigan Power Co.(formerly Indiana&Michigan Ele RECIP.NAME RECIPIENT AFFILIATION R

SUBJECT:

Monthly operating rept for Sept 1994 for DC Cook Nuclear Plant, Unit 1.W/941017 ltr.DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR ENCL SIZE: TITLE: Monthly Operating Report (per Tech Specs)NOTES RECIPIENT ID CODE/NAME PD3-1 PD INTERNAL: AEOD/SPD/RRAB NRR/DORS/OEAB RGN3 EXTERNAL: EG&G BRYCE,J.H NRC PDR COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 1 1 RECIPIENT ID CODE/NAME HICKMAN,J FILE CENTER 01=/rRCB-NOAC COPIES LTTR ENCL 1 1 1 1 1 1 1 1 D 0 C N NOTE TO ALL"RIDS" RECIPIENTS:

PLEASE HELP US TO REDUCE iVKSTE!CONTACT THE DOCL'if ENT CONTROL DESK, ROOhf PI-37 (EXT.504-083)TO ELI hf!NATE YOUR NAif L PRO%i DISTRIBUTION LISTS I'OR DOC!.0 IEN'I'S YOI: DON" I'L'ED!TOTAL NUMBER OF COPIES REQUIRED: LTTR 10 ENCL 10 Indiana Michigan Power Company Cook Nuclear Plant One Cook Place Bridgrnan, Ml 49106 616 465 5901 October 17, 1994 U.S.Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C.20555 Gentlemen:

Pursuant to the requirements of Donald C.Cook Nuclear Plant Unit 1 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the month of September 1994 is submitted.

Respectfully, A.A.Blind Plant Manager Attachment co NRC Region III D.R.Hahn R.C.Callen S.Hamming Z.G.Keppler INPO Records Center ANI Nuclear Engineering Department E.E.Fitzpatrick W.G.Smith, Jr.S.J.Brewer D.W.Paul S.H.Steinhart J.L.Leichner J.A.Isom D.G.Turner E.A.Smarrella J.C.Krieger D.F.Krause M.E.Russo 9410260086 940930 PDR ADOCK 05000315 R'DR N.R.C.OPERATING DATA REPORT DOCKET NO.50-315 DATE.04/Oct/94 COMPLETED BYJ D Janisse TELEPHONE 616-465-5901 OPERATING STATUS 1.Unit Name D.C.Cook Unit 1 2.Reporting Period September notes 3.Licensed Thermal Power (MWt)3250 4.Name Plate Rating (Gross MWe)1152 5.Design Electrical Rating (Net MWe)1020 6.Maximum Dependable Capacity (GROSS MWe)1056 7.Maximum Dependable Capacity (Net MWe)1000 8.If Changes Occur in Capacity Ratings (Items no.3 through 7)Since Last Report Give Reasons 9.'0.ower evei o ic estricte.Reasons For Restrictions.

If Any: ny e e 11.Hours in Reporting Period 12.No.of Hrs.Reactor Was Critical 13.Reactor Reserve Shutdown Hours 14.Hours Generator on Line 15.Unit Reserve Shutdown Hours 16.Gross Therm.Energy Gen.(MWH)17.Gross Elect.Energy Gen.(MWH)18.Net Elect.Energy Gen.(MWH)19.Unit Service Factor 20.Unit Availability Factor 21.Unit Capacity Factor (MDC Net)22.Unit Capacity Factor (DER Net)23.Unit Forced Outage Rate 24.Shutdowns Scheduled over Next Six None is o.r.to ate 720.0 6552.0 720.0 4048.5 0.0 0.0 715.9 4007.0 0.0 0.0 2116670 11431649 678490 3643810 652628 3501826 99.4 61.2 99.4 61.2 90.6 53.4 88.9 52.4 0.0 0.0 Months (Type.Date.and umm.173112.0 129702.9 463.0 127615.6 321.0 374957424 121666470 117023624 74.6 74.6 67.3 65.6 5.9 Duration):

25.ut own n o eport erio.stimate ate o artup: 26.nits in est atus rior to ommercia INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION I peration: Forecast Achieved 0~I AVERAGE DAILY POWER LEVEL (MWe-Net)DOCKET NO.50-315 UNIT ONE DATE 10/Oct/94 COMPLETED BY J D Janisse TELEPHONE 616-465-5901 MONTH.September DAY 94/09/01 94/09/02 94/09/03 94/09/04 94/09/05 94/09/06 94/09/07 94/09/08 94/09/09 94/09/10 94/09/11 94/09/12 94/09/13 94/09/14 94/09/15 94/09/16 AVERAGE DAILY POWER LEVEL 1021 1020 1014 1017 744 949 1015 1014 1000 598 450 431 175 614 997 1009 DAY 94/09/17 94/09/18 94/09/19 94/09/20 94/09/21 94/09/22 94/09/23 94/09/24 94/09/25 94/09/26 94/09/27 94/09/28 94/09/29 94/09/30 AVERAGE DAILY POWER LEVEL 1009 1013 10051006 1012 1010 971 1024 1018 1017 1015 1014 1005 1006 DOCKET N UNIT NAME: COMPLETED BY: TELEPHONE:

DATE: PAGE 50-315 D.C.Cook Unit 1 D.L.Bublick (616)465-5901 October 7,1994 Page.1 of 2 MONTHLY OPERATING ACTIVITIES

-SEPTEMBER 1994 HIGHLIGHTS The unit entered this reporting period in Mode 1 at 1004 RTP.The unit exited this reporting period in Mode 1 at 100>RTP.There were no challenges to the pressurizer safety valves or power operated relief valves.Gross Electrical generation for'the month of September was 678490 MWH.DETAILS 9-5-94 0845 Commenced Reactor power reduction due to problems with 1-WMO-13 (f13 Circ.Water Pump Discharge).

Valve actuator appeared to be working itself loose.9-6-94 9-9-94 9-10-94 9-11-94 9-12-94 1000 1350 1400 1942 1450 1730 0825 2031 Reactor power at 494 RTP.Commenced reactor power increase to 1004 RTP.Reactor power stabilized at 1004 RTP.Commenced Reactor power reduction for Biocide application in the Circ.Water System.Started Circ.Water System Biocide application.

Reactor power stabilized at 50%RTP.Circ.Water System Biocide application complete.Commenced Reactor power reduction to allow oil addition to gl3 RCP, repair of West MFP Suction Strainer and repairs to the Main Turbine Trip Solenoid.9-13-94 0335 0742 0938 1435 Reactor power stabilized at 30>RTP.Commenced Reactor power reduction.

Reactor power stabilized at 15~RTP.Commenced Reactor power increase.

DOCKET N UNIT NAME: COMPLETED BY: TELEPHONE:

DATE PAGE: 50-315 D.C.Cook Unit 1 D.L.Bublick (616)465-5901 October 7,1994 Page 2 of 2 MONTHLY OPERATING ACTIVITIES

-SEPTEMBER 1994 1710 1945 0505 Reactor power stabilized at 304 RTP.Commenced Reactor power increase.Reactor power stabilized at 1004 RTP.

UNIT SHUTDOWNS AND POWER REDUCTIONS Report Month: SEPTEMBER 1994 UNIT NAME DATE: COMPLETED BY: TELEPHONE:

PAGE: D.C.COOK UNIT, 1 Oct 7, 1994 D.L.Bublick (616)465-5901 Page 1 of 1 DURATION NO.DATE TYPE HOURS METHOD OF SHUTTING DOWN REASON~REACTOR~LICENSEE EVENT SYSTEM COMPONENT CAUSE AND CORRECTIVE ACTION REPORT NO CODE CODE~TO PREVENT RECURRENCE 311 940905 S 3.8 N/A N/A N/A After decreasing and stabilizing Reactor Power at 49%RTP on 940905, maintenance activities commenced on 1-WMO-13 (813 Circ.~Water Pump Discharge) valve actuator.The reactor was returned to 100%RTP on 940906 at 1400.312 940910 S 313 940913 S 17.6 N/A N/A N/A N/A N/A N/A N/A After increasing and stabilizing reactor power at 100%RTP on 940906, reactor power was reduced to 50%RTP on 940910 to support.Zebra Mussel cleanup in the Circ.Water System.The Reactor was returned to 100%RTP on 940915 at 0505.After decreasing and stabilizing Reactor Power at 15%RTP on 940913, oil addition commenced to f13 RCP.The reactor was returned to 100%RTP on 940915 a 0505.1 F: Forced S: Scheduled 2 Reason: A: Equipment Failure (Explain)B: Maintenance or Test C: Refueling D: Regulatory Restriction E: Operator Training and License Examination F: Administrative G: Operational Error (Explain)H: Other (Explain)3 Method: 1: Manual 2: Manual Scram 3: Automatic Scram 4: Other (Explain)4 Exhibit G-Instructions for preparation of data entry sheets for Licensee Event Report (LER)File (NUREG 1061)5 Exhibit I Same Source r i~r A

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