ML20236W037

Monthly Operating Rept for Aug 1987

ML20236W037
Person / Time
Site:	Cook
Issue date:	08/31/1987
From:	Climer, Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC
References
NUDOCS 8712070239
Download: ML20236W037 (7)

Text

- _ _ _ _ _ - _ _ -

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N.R.C. OPERATING DATA. REPORT DOCKET NO.

50'-315 DATE 973/87 COMPLETED BY CLIMER-

' TELEPHONE 816-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit'l

2. Reporting Period AUG 87L!?otes l

C

-3.-Licensed Thermal Power (MWt)~

3250'l~

.l-

4. Name. Plate Rating (Gross-MWe)-

1152 l l

5..' Design Electrical, Rating (Net MWe) 1030 l' l.

7. Maximum Dependable Capacity.(Net MWe) 1020' 6.. Maximum. Dependable Capacity'(GROSS MWe) 1056 l

8. If Changes Occur in Capacity: Ratings (Items.no. 3 through17) Since Last Report Give' Reasons

9. Power Level To Which Restricted. If Anyi(Net MWe)

10. Reasons For Restrictions. If:Any:

l l

This:Mo.

Yr. lx) Date=

Cumm.

l 11'. Hours in Reporting Period 744.0-5831.0 111023.0 1

12. No. of Hrs. Reactor Was Critical 0.0' 3908.7 79734.5-l

13. Reactor Reserve Shutdown Hours 0.0-0.0 463.0

14. Hours. Generator on:Line 0.0 3886.3 78204.9 l'

15.. Unit Reserve Shutdown' Hours 0.0.

0. 0.

321.0 L-

16. Gross Therm. Ene:gy Gen. (MWH)

O.

10823586~

227456094 L

17. Gross Elect. Energy Gen. (MWH) 0' 3465460:

74361330 l

18. Net Elect. Energy Gen. (MWH) 0 3323568 71520799

19. Unit Service Factor 0.0 66;6 71.7

20. Unit Availability Factor 0.0 66.6-71.7

21. Unit Capacity Factor.(MDC Net) 0.0 55.9

'64 3

22. Unit Capacity Factor (DER Net) 0.0-55.3 62.1

23. Unit Forced Outage Rate 0.0 8.5 8.6 L

24. Shutdowns Scheduled over Next Six Months (Type,Date,and~ Duration):

i l

25. If Shut Down At End of-Report Period, Estimated Date of:Startup:

l Unit current 1v shutdown for evele 9-10 rnfunline.

Far4mnenM ce n v rim Aoem in 9-16-87,

26. Units in Test Status (Prior to Commercial Operation):

Forcast.

Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION i

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COMPLETED BY..

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UNIT NAME:i'D.:C.. Cook Unit 1

' COMPLETED'BY:: J.LL'.-St.1Amand' 1

2 TELEPHONE:

(616):465-5901, iDATE: Sept. - 8, - 1987..

"PAGE:: 11of:2:

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1 MONTHLY OPERATING ACTIVITIES'- AUGUST 1987 a1 HIGHLIGHTS:

'M

l The reporting period! began with the dnit in Mode 6 with Core [ Unloading!in-c progress'..

J-An Unusual Event'. was entered on. August; 3,!1987; lasting through. August '5,1987',

due to inoperable essential service water' pumps, rendering both Diesel l Generators' inoperable. 'The event was terminated:upon' returning the'westLESW.-

pump and > theJAB Diesel to ' service;

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The core was. reloaded land'the reactor vessel; upper internals set.. Control:

. rods were' latched 'and ' drag tested. The reactor vessel head was. replaced;on!

August' 18, 1987.

..'n Blackout and Engineered ~ Safety Features' Response' time testing wasiconducted-throughout;the month.,

4 -<

p Mode 5 was entered at 2330 hours0.027 days <br />0.647 hours <br />0.00385 weeks <br />8.86565e-4 months <br />,on August 22, 1987.

TheReactorCoolantPumpHatchboltswehefoundnotto'beinstalledas designed, raising questions as to the hatches' ability to seal'and maintain; upper..and lower volume separation.in the' event.ofia LOCA..t Analysis-and.

y repairs are in progress.

i The reporting period ended with the unit.in Mode 5; the cycle.9-10 refueling' outage continuing.

Gross Electrical Generation for' the month of August was 0 MWH.-

)

SUMMARY

II 8-1-87 0000 Unit in Mode 6.. core unloading in progress; j

0210 Core is unloaded.

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8-3-87 0820 Entered Unusual Event. Both ESW pumps are inoperable, causing both Emergency Diesel Generators to be inoperable. Note: The AB Diesel is still functional with ESW from Unit 2.

8-5-87 1210 Tenninated Unusual Event. West ES'W pump and AB Diesel Generator are operable.

8-10-87 1936-Started core reload.

8-13-87 1141 Core reload completed.

8-14-87 0251 Upper internals set.

j 8-18-87 0155 Reactor head.' set.-

8-22-87 2330' Entered Mode 5.

8-26-87 2140 Four hour. report made to NRC on faulty Reactor Coolant Pump Hatch bolts not, installed as designed.

'1 The reporting period ended with the un'it in Mode 5, cycle 9-10 refueling.

outage in progress.

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.,1 DOCKET NO'

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. UNIT NAME D. C. Cook - Unit No'.11 DATE

-Sept. 8, 1987. /

. COMPLETED BYJ JJ. L. St. Amand TELEPHONE.

-(616):465-5901

' ' PAGE '-

1 of-1 MAJOR SAFETY-RELATED MAINTENANCE.'

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, AUGUST,19'87-1 M-1

'The east ce'ntrifuga14 charging pump was'found tb have a burnt: power..

cable.followin'g' the pump's failure,to' start. ? When the ' cable was ',

pulled out,'a substance suspected.to be: fuel oil wasL noticed on the

- cable. The. replacement cable.was routed through'a-spare conduit and; the pump verified to op'erate acceptably-befoFe. returning to 'serviceo-1 Investigation continues to find the source of the substance.

M-2 Several reactor coolant pump hatch bolts' were found to be installed, in a configuration different from design. raising. questions as'to the ability to maintain separation of upper and-lower containment-volumes in the event of a LOCA.

the bolts.~were reworked to an i

~

l approved design. Analysis is being' conducted.on the "as-found" condition.

M-3 While replacing the auxiliary.feedwater regulating valves, metal beads were discovered in the motors. The motors were returned:to:

the' manufacturer for cleaning and inspection... The operators were inspected, cleaned where necessary,'and all.' components verified to operating acceptably following reassembly.

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& MICHIGAN ELECTRLC_COMEAN.$

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. DONALD C. COOK NUCLEAR PLANT.

' P.O. Box 458, Bridgman, Michigan 49106 J

(616) 465 5901 '

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o September 9,;1987s.

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' Director, Office Of' Management $1nformation-1 a

and Program Control-

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'U. S.' Nuclear Regulatory Commission

' Washington,'D.- C.

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G'entlemen:

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'E Pursuant to the requirements;of Donald C. Cook Nuclear' Plant-Unit 1 Technica1L lj Specification'6.9.1.10, the attached Monthly Operating Report for/the.Monthlof'

';j August'-, 1987 is submitted.

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' Sincerely,

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.o W. G. Smith, Jr.

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Plant Manager WGS/jd cc:

J. E. Dolan M. P. Alexich-

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-R. W. Jurgensen p

R. O. Bruggee 9

-@4 R. C. Callen C. A. Erikson D. W. Paul D. R. Hahn J. J. Markowsky E. A. Horse'

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%s PNSEC File IS s

C*p}

s INP0 Records Center ANI Nuclear Engineering Department T.

R.' Stephens h1C Region III.

B. L. Jorgensen S', 1.. Hall D.-A. Timberlake s

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