ML18219D348

05/15/1978 Letter Monthly Operating Report for April 1978

ML18219D348
Person / Time
Site:	Cook
Issue date:	05/15/1978
From:	Shaller D American Electric Power, Indiana Michigan Power Co, (Formerly Indiana & Michigan Power Co)
To:	Office of Nuclear Reactor Regulation
References
Download: ML18219D348 (9)

Text

n5'9 /~ f0 REGULATORY INFORMATION DlSTRIBUTION SYSTEM (RIDS>

DISTRIBUTION FOR INCOMING MATERIAL 50-315 REC: ORG: SHALLER D V DOCDATE: 05/15/78 NRC IN 8c MI PWR DATE RCVD: 05/19/78 DOCTYPE: LETTER NOTARIZED: NO COPIES RECEIVED

SUBJECT:

LTR 1 ENCL 1 FORWARDING SUBJECT FACILITY"S MONTHLY OPERATING REPT FOR THE MONTH OF APRIL 1978.

PLANT NAME: COOK UNlT 1 REVIEWER DISTRIBUTOR INITIAL: ~

INITIAL: X JM DISTRIBUTION OF THIS MATERIAL IS AS FOLLOWS 4++++<<<<<4<<+<<<+

NOTES:

I 5 E 3 CYS ALL MATERIAL MONTHLY OPERATING REPORT FOR GRAY BOOK PREPARATION.

(DISTRIBUTION CODE A003)

FOR ACTION: , BR CHI ENCER4<W/2 ENCL INTERNAL: REG F 44W/ENCI NRC PDR+4W/ENCL FOR A ++W/2 ENCL EXTERNAL: LPDRiS ST. JOSEPH'I44W/ENCL TI C++W/ENCL I

NS C++W/ENCL BNL(NATLAB)++W/ENCL ACRS CAT B44W/0 ENCL DISTRIBUTION: LTR 10 ENCL 10 CONTROL NBR: 781 040 SIZE: iP+6P END

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INDI NA & MICHIGANPONE8 COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 r')

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May 15, 1978 WCD C'

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V (g Director, Office of Management Information C7 and Program Control U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Gentlemen:

Pursuant to the requirements of Donald C. Cook Nuclear Plant Unit 1 Technical Specification 6.9.1.6, the attached Monthly Operating Report for the Month of April, 1978 is submitted.

Sincerely, D. V. Shaller Plant Manager DVS:ab Attachment cc: R. W. Jurgensen NRC Region III K. R. Baker R. C. Callen R. Wal sh S. J. Mierzwa J. E. Dolan R. J. Vollen G. E. Lien K. W. Brown J. M. Hennigan P. W. Steketee A. F. Kozlowski J. G. Stietzel PNSRC File 78i3P0p~>

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DOC)'""T 40

&ADIT OqPL TED IIY V. T. Gillett g i PHOqE 6 16 465 5901 April 1978 DAY AVERAGE DAILYPOWER LEVEL DAY AVERAGE DAlLYPOWER LEVEL (MK~iher ) (MWe.'quiet) 1044 17 0 1044 0 2

1044 0 19 1047 0 20 0

'3 o54 0 0 0 0 0 24 0 15 0 10 0 26 0 0 27 0 12 0 2S 0 13 0 0 0 0 15 0 31 0

16 INSTRUCTIONS On this format. list he ave; ee dail) unit popover level in Mt'.Yet for each day in the reporttnz ntonth. Ciimpute tu'he nearest v'hole m gaivatt.

('i) r77 }

OPERATIiNG DATA REPORT DOCI'~T YO.

527B COMPLETED BY II' ~ Oillatt TELEPHONE ~C~j '+01 OPERATING STATUS Donald C. Cook 1 Notes

l. Urut Name:

2. Reporting Period: APi>1 1978

3. Licensed Thermal Power (MWt): 3250

4. Namep!ate Rating (Gross MNe): 1089 S. Design Electrical Rating (Net MÃe)';

Maximum Dependable Capacity (Gross MÃe):

7. Maximum Dependable Capacity (Net MNe):

8. If Changes Occur'n Capacity Ratings (Items Number 3 Through 7) Since Last Report, Give Reasons:

9. Power Level To which Restricted, If Any (Net MWe):

10. Reasons For Restrictions. If Any:

This Month Yr:to-Date Cumulative .

11. Hours In Reporting Period 719 2, 879 29,183.0

12. Number Of Hours Reactor Was Critical 2,172.4 22 795.1

13. Reactor Reserve Shutdovm Hours 0 0 463. 0

14. Hours Gener tor On-Line 2,159.9 22, 129. 7"

15. Unit Reserve Shutdown Hours 0 0 321. 0

16. Gross Therm" I Energy Generated (IPI)YH) 438 253 6 643 238 58 199 431

17. Gross Electrical Energy Generated (M>VH) 146,010 2,196,130 18,961,220

18. Net Electrical Energy Generated (M'6'H) 141,097 2,117,081 18,167,295

19. Unit Service Factor 18.8 75.0 79.6

20. Unit Availability Factor 18.8 75.0 79.6

21. Unit Capacity Factor (Using iLfDC Net) 18.8 70.4 68.7

22. Unit Capacity Factor (Using DER Net) 18.6 69.8 63. 7

23. Unit Forced Outage Rate 0 5.9 6.8

24. Shutdowns Scheduled Over Next 6 ibfonths (Type. Date. and Duration of Each l:

25. If Shut Down At End Of Report Period. Estimated Date of Startup.'6, Units In Test Status (Prior to Commercial Operation): Forecast Achieved INITIAL CRITICALITY IN ITIA L ELECTRICITY COM;"IIERCIALOPERATION

DOCKET NO. 50-'315 UNIT SHUTDOWNS AND POWER REDUCTIONS UNIT NAh'IE DATE Apri 1, 978 COMPLETED DY B.A REPoRT h(oN'fH 1 TELEPHONE 5901 rj 0 Liccnscc C

~l/1 Cause k. Corrcclivc Ni). l)atc Vl rj o z gr)c Evcnl cj 2 ~

Action to Rcport 4 0 Prcvcnt Rccurrcnce

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127 780406 585. 0 C 2 ZZ ZZZZZZ Vnit removed from service for Cycle II-III Refueling Outage. Method of shutting down was generator trip test from 1004 power.

I I': Forced Reason: hie thod: Exhibit G - Instructions S: Scheduled A-Ei)uipmcnt Failure (Explain) I hlanual for Preparation ol Data II-h(aintenance or Test 2-Manual Scranl. Entry Shecls for Lice>>scc C-Refuclinl, 3 Anton)attc Scrlun Event Report (LER) File (NORE G.

D-Rellulato)y Restriction 4 Olhcf (Explain) Ol 6l )

F..Opi-'fJ li)f t rain)nl; k Llccnsc I)xJnllnalli)n F-Administ rat ivc G.Opcfallon Jl Elrof (EXPIJln) 'Exhibit I Salnc Source

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('>/77) I I.Other (Explai>>)

~ UNIT SHUTDOWNS AND POWER REDUCTIONS

~ ~

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INSTRUCTIONS This report should describe all plant shutdowns during the in accordance with the table appearing on the report torm.

report period. In addition, it should be the source of explan- If category 4 must be used, supply brief comments.

ation of significant dips in average power levels. Each signi.

ficant reduction in power level (greater than 20% reduction LICENSEE EVENT REPORT ~. Reference the applicable in average daily power level for the preceding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) reportable occurrence pertaining to the outage or power should be noted, even though the unit may not have been reduction. Enter the first four parts (event year, sequential shut down completely>. For such reductions in power level, report number, occurrence code and report type) of the five the duration should be listed, as zero, the method of reduction part designation as described in Item 17 of Instructions for should be listed as 4 (Other), and the Cause and Corrective Preparation of Data Entry Sheets for Licensee Event Report Action to Prevent Recurrence column should explain. The (LER) File (NUREG4161). This information may not be Cause and Corrective Action to Prevent Recurrence column immediately evident for all such shutdowns, of course, since should be used to provide any needed explanation to fully further investigation may be required to ascertain whether or describe the circumstances of the outage or power reduction.

not'a reportable occurrence was involved.) If the outage or power reduction will not result in a reportable occurrence.

iVUMBER. This column should indicate the sequential num- the positive indication of this lack oi'orrelation should be ber assigned to each shutdown or significant reduction in power noted as not applicable (iV/A).

for that calendar year. When a shutdown or significant power SYSTEM CODE. The system in which the outage or power reduction begins in one report period and ends in another.

reduction originated should be noted by the two digit code of an entry should be made for both report periods to be sure all shutdowns or significant power reductions are reported.

Exhibit G Instructions for Preparation of Data Entry Sheets

~

Until a unit has achieved its first power generation, no num- for Licensee Event Report (LER) File (NUREG416l).

ber should be assigned to each entry. Systems that do not fit any existing code should be designa-ted XX. The code ZZ should be used for those events where DATE. This column should indicate the date of the start a system is not applicable.

of each shutdown or significant power reduction. Report as year, month. and day. August i4. 1977 would be reported COMPONEiVT CODE. Select the most appropriate component as 770814. When a shutdown or significant power reduction from Exhibit I - Instructions for Preparation of Data Entry begins in one report period and ends in another, an entry should Sheets for Licensee Event Report (LER) File (NUREG4161).

be made for both report periods to be sure all shutdowns using the following critieria:

or significant power reductions are reported.

A. If a component failed,use the component directlyinvolved.

TYPE. Use "F" or "S" to indicate either "Forced" or "Sche-duled," respectively, for each shutdown or significant power B. If not a component failure, use the related component:

reduction. Forced shutdowns include those required to be e.g.. wrong valve operated through error: list valve as initiated by no later than the weekend following discovery component.

of an off.normal condition. It is recognized that some judg-ment is required in categorizing shutdowns in this way. In C. If a chain of failures occurs, the first component to mal-general. a forced shutdown is one that would not have been function should be listed. The sequence of events, includ-completed in the absence of the condition for which corrective ing the other components which fail, should be described action was taken. under the Cause and Corrective Action to Prevent Recur-rence column.

DURATION. Self-explanatory. When a shutdown extends Components that do not fit any existing code should be de.

beyond the end ot a report period, count only the time to the signated XXXXXX. The code ZZZZZZ should be used for end of the report period and pick up the ensuing down time events where a component designation is not applicable.

in the following report periods. Report duration of outages rounded to the nearest tenth of an hour to facilitate summation.

CAUSE &, CORRECTIVE ACTION TO PREVENT RECUR-The sum of the total outage hours plus the hours the genera-RENCE. Use the column in a narrative fashion to amplify or tor was on line should equal the gross hours in the reporting explain the circumstances of the shutdown or power reduction.

period. The column should include the specific cause for each shut-down or significant power reduction and the immediate and REASON. Catep>rize by letter designation in accordance contemplated Iong term corrective action taken. if appropri-with the table appearing on the report t'orm. If category H ate. This column should also be used for a description of the must be used. supply brief comments.

major safety.rehted corrective maintenance performed during the outage or power reduction including an identification of iiIETHOD OF SHUTTING DOW>V THE REACTOR OR REDUCING POWER. Categt>rize by number designaiion the critical path activity and a report of any single release of radioactivity vr single radiation exposure specitically associ ~

INote that this differs t'rom ihe Edison Electric Institute ated with the outage which accounts for more than 10 percent IEEI) definitions ot'Forced Partial Outage" and "Sche- of the allowable annual values.

duled Partial Outag<<." F>>r ihes<< t<<ru>~. EEI uses a change oi For long textual reports continue narrative on separate paper

0 iIW as the break point. F>>r larger pow<<r reactors. 30 >IIW an>I rei<<rene<< tlie shutdown or power reduction for this is t>>>> small a change ti> warrant <<xplanaiio>>. llarraiiv<<.

(9/77

Docket No.: 50-315 Unit Name: D. C. Cook Unit 1 Date: May 15, 1978 Completed By': R. S. Keith Telephone: (616) 465-5901 OPERATING EXPERIENCE - APRIL, 1978 Hi hli hts The Unit continued to operate at 1004 power until it was removed from service at 1500 hours0.0174 days <br />0.417 hours <br />0.00248 weeks <br />5.7075e-4 months <br /> on April 6, 1978 by conducting a generator trip.

The Cycle II - III Refueling Outage started on April 7, 1978.

~Somman 4/1/78 The Unit entered the month operating at 100K power.

4/6/78 Unit tripped off the line from 1004 power by a planned gen-erator trip.

4/7/78 Cycle II - III Refueling Outage started Reactor Coolant System pl aced in Mode 5.

4/8/78 Started disassembly of "C" Turbine and Main Generator.

4/15/78 Reactor Head studs detentioned.

4/21/78 Reactor vessel head was removed.

Started filling reactor cavity.

Lowered water level in reactor cavity to repair a leak on the seal table.

4/22/78 Started filling reactor cavity.

4/23/78 Upper internals were removed from the Reactor.

Upper internals placed back in Reactor. Pumping down Reactor cavity to repair leak on reactor cavity seal ring.

4/27/78 Reactor cavity was flooded, upper internals were removed and preparations for fuel shuffle were completed. Between 4/23/78 and 4/27/78 the reactor cavity had been flooded and drained several times to repair leaks on cavity seal ring.

1 DOCKET NO. 50 - 315 UNIT NAME D. C. Cook - Unit No. 1 DATE 5-15-78 COMPLETED BY B. A. Svensson TELEPHONE 616 465-5901 MAJOR SAFETY-RELATED MAINTENANCE APRIL, 1978 NOTE: Unit No. 1 has been shut down for Cycle II - III Refuel-ing Outage for the entire month of April, 1978. Major safety-related maintenance items performed during the outage will be reported separately at the end of the outage.