ML20237K597

Monthly Operating Rept for Mar 1987

ML20237K597
Person / Time
Site:	Cook
Issue date:	03/31/1987
From:	Climer, Will Smith, St Amand J INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC
References
NUDOCS 8708190328
Download: ML20237K597 (6)

Text

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N.R.C OPERATING DATA REPORT 5

DOCKET NO.

50-316 4

DATE 4/3/87 COMPLETED BY CLIMER TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit 2

2. Reporting Period MAR 87 l notes l

3. Licensed Thermal Power (MWt) 3411 l l

4. Name Plate Rating (Gross MWe) 1133 l l

5. Design Electrical Rating (Net MWe) 1100 l l

6. Maximum Dependable Capacity (GROSS MWe) 1100 l l

7. Maximum Dependable Capacity (Net MWe) 1060 -----------------------

8. If Changes Occur in Cr;acity Ratings (Items no. 3 through 7) Since Last Report Give Reasons

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9. Power Level To Which Re tricted. If Any (Net MWe)

10. Reasons For Restrictions. If Any:

This Mo.

Yr. to Date Cumm.

11. Sours in Reporting Period 744.0 2160.0 81048.0

12. No. of Hrs, Reactor Was Critical 63.1 1479.1 56068.4

13. Reactor Reserve Shutdown Hours 0.0 0.0 0.0

14. Hours Generator on Line 62.4 1478.4 54721.7

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Therm. Energy Gen. (MWH) 159603 3974977 169666181

17. Gross Elect. Energy Gen. (MWH) 51850 1324740

$5542780

18. Net Elect. Energy Gen. (MWH) 49572 1270058 53504894 8.4 68.4 69.6

19. Unit Service Factor

20. Unit Availability Factor 8.4 68.4 69.6

21. Unit Capacity Factor (MDC Net) 6.3 55.5 64.2

22. Unit Capacity Factor I. DER Net) 6.1 53.5 62.7

23. Unit Forced Outage Rate 91.6 31.6 15.3 2 4.. Shutdowns 3cheduled over Next Six Months (Type. Late,and Duration).

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Fc.rcast Acnieved INITIAL CRITIC;..

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DOCKET NO.

50--316.

UNIT TWO DATE 3/4/87 COMPLETED BY CLIMER TELEPHONE 616-465-5901 MONTH FEB 87 AVERAGE DAILY AVERAGE DAILY

' DAY POWER LEVEL DAY POWER LEVEL 1

863

.17 863 2

863 18 864 3

859 19 864 4

859 20 865 5

862 21 861 6

862 22 865 l

7 862 23 860 8

864 24 863 9

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DOCKET NO:

50-316 UNIT NAME:

D.C. Cook Unit 2 COMPLETED BY:

J. L. St. Amand TELEPHONE:

(616) 465-5901 DATE: April 10, 1987 PAGE:

1 of 1

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MONTHLY OPERATING ACTIVITIES - MARCH 1987 HIGHLIGHTS The reporting period began _with the unit in Mode 1 at the 80% power limit administrative 1y imposed to minimize steam generator tube degradation. A unit shutdown began on 3-3-87 due to increasing primary to secondary leakrates. A reactor trip occurred from less than 1% power due to a high spike on the N-31 source range detector. The reporting period ended with the unit in Mode 5 at half-loop.

Estimated start-up date is April 15, 1987.

Gross Electrical Generation for the month of March was 51,850 MWH.

SUMMARY

3-1-87 The reporting period began with the unit in Mode 1 at 80%

power.

3-3-87 At 0517, a unit shutdown was started due to increasing primary.

to secondary leakrate measuring.302 gpm.

At 1440, the generator was taken off line, Mode 2 was entered.

At 1505, all control rods were inserted.

At 1507, shutdown bank D rods were inserted.

At 1511, a reactor trip occurred from less than 1% power due to a high spike on N-31 source range detector.

3-4-87 At 0237, Mode 4 was entered.

At 1416, Mode 5 was entered.

3-10-87 At 2100, in Mode 5, half-loop was achieved.

l The reporting period ended in Mode 5 at half-loop.

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DOCKET NO.

50-316 I

UNIT NAME D.C. Cook - Unit 2 DATE April 10, 1987 COMPLETED BY J. L. St. Amand TELEPHONE (616) 465-5901 PAGE 1 of 1 MAJOR SAFETY-RELATED MAINTENANCE MARCH, 1987 M-1 The #4 Boric Acid Transfer Pump was ound leaking at the flange and shaft seal. The pump was rebuilt, orified to operate correctly, and returned to service.

M-2 Several component cooling water system leaks from cracked welds were found and repaired.

M-3 100 percent eddy current examinations were performed on the steam generators.

110 tubes were plugged based on the results of the testing.

-M-4 The Steam Generator manway bolt hole threads were found to be damaged upon removal of the manway covers. Repairs were completed by Westinghouse.

M-5 Rod L13 of Shutdown Bank "C" did not move during rod insertion.

Investigation showed a faulty connection at disconnect #8 on board assembly #4. The connector was disassembled and inspected, no abnormalities were found. The connector was reassembled and verified to work properly.

M-6 Essential service water to East Auxiliary Feed Pump Valve 2-WM0-754 failed to close properly when being cycled for valve testing.

Inspection showed the stationary block for the Torque switch loose, and the open limit switch incorrectly set.

Both problems were repaired and the valve verified to operate correctly before returning to service.

16C-1 Channel 1ofg-31,sourcerangedetectorwasfound ingicating10 counts per second while N-32 channel 2 was indicating 10 and decreasing.

Investigation showed the detector for N-31 to be defective. The detector was replaced and calibrated prior to returning it to service, u

I&C-2 The Ammeter for the intermediate range nuclear instrumentation was observed not working properly. The ammeter was i

found to be defective. Replaced' ammeter, performed calibration, and performed surveillance test prior to returning to service.

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INDIANA _ &_nflCHIGAN ELEGIBIS_ COMPANY 1*

y DONALD C. COOK NUOLEAR PLANT P.O. Box 458, Bridpnan, Michigan 49106 (616) 465-5901-April 10, 1987-Director, Office Of Management.Information and Program Control U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Gentlemen:

Pursuant to the requirements of Donald C. Cook Nuclear Plant Unit.2 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the Month of March, 1987 is submitted..

Sincerely, W. G. Smith, Jr.

Plant Manager WGS/jd cc:

J. E. Dolan M. P. Alexich R. W. Jurgensen R. O. Bruggee R. C. Callen C. A. Erikson D. W. Paul D. R. Hahn J. J. Markowsky E. A. Morse PNSRC File' INP0 Records Center ANI' Nuclear Engineering Department T. R. Stephena NRC Region III B. L. Jorgensen S. L. Hall D. A. Timberlake

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