ML20212P213

Monthly Operating Rept for Dec 1986

ML20212P213
Person / Time
Site:	Maine Yankee
Issue date:	12/31/1986
From:	Lizotte W, Taylor J, Whittier G Maine Yankee
To:	Hartfield R NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
8375L-GDW, GDW-87-05, GDW-87-5, MN-87-01, MN-87-1, NUDOCS 8703160030
Download: ML20212P213 (5)

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< OPERATING DATA REPORT Dockct No.:' 50-309 Dato: 06/Jan/87 Completed By: WILLIAM LIZOTTE Telephone: 207-882-6321 1.' Unit Name....................................... Maine Yankee

2. Reporting Period................................ December 1986 l 2630

3. Licensed Thermal Power (MWt)....................

4. Nameplate Rating (Gross MWe).................... 864

5. Design Electrical Rating (Not MWe).............. 825

6. Maximum Dependable Capacity (Gross MWe)......... 850

! 7. Maximum Dependable Capacity-(Net MWe)........... 810 ,

8. If Changes in Capacity Ratings (Items Number 3-7)

Since Last Report, Give Reasons:

NO CHAN8ES

-9. Power Level to Which Restricted, if Any (Net MWe) NO RESTRICTIONS

10. Reasons for Restrictions, if Any:

1 THIS MONTH YEAR-TO-DATE CUMULATIVE

11. Hours In Reporting Period 744.00 8.760.00

12. Number of Hours Reactor Was Critical........... 744.00 7.791.17 100.128.89

13. Reactor Reserve Shutdown Hours.................. O.00 O.00 O.00

14. Hours Generator On-1ine.. 744.00 7.695.03 97.339.e9

15. Unit Reserve Shutdown

Hours.................. 0.00 0.00 0.~ O0

16. Gross Thermal Energy Generated (MWH)........ 1.920.708.00 19.256.631.00 221.257.312.00

17. Gross Electrical Energy .

Generated (MWH)........ 642.910.00 6.461.290.00 72.701.010.00

18. Net Electrical Energy Generated (MWH)........ 622.405.00 6.241.756.00 69.428.071.00

19. Unit Service Factor...... 100.00 87.84 78.51

20. Unit Availabilty Factor.. 100.00 87.84 79.26 l

21. Unit Capacity Factor i (Usi ng MDC Net) . . . . . . . . 103.28 87.97 70.86

22. Unit Capacity Factor (Using DER Net)........ 101.40 86.37 69.01

23. Unit Forced Outage Rate.. 0.00 1.97 6.49

24. Shutdowns Scheduled Over Next 6 Months i Date Type Duration 3/28/87 REFUELING OUTAGE 3/28/87-5/10/87

'25. If Shutdown at End of Report Period, Estimated Date of Startup: N/A 8703160030 861231 PDR ADOCK 05000309 34 R PDR %6 i il'

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e AVERAGE DAILY UNIT POWER LEVEL -

FOR DECEMBER 1986 Docket No.: 50-309 Unit: Maine Yankee Date: 02/Jan/87, Completed By: WILLIAM LIZOTTE Telephone: 207-882-6321 D _y Avg. Daily Power Level Day Avg. Daily Power Level (MWe-Net) (MWe-Net) 1 .................... 828 16 .................... 852 2 .................... 658 17 .................... 855 3 .................... 561 18 .................... 856 4 .................... 842 19 .................... 853 5 .................... 852 20 .................... 854 6 .................... 856 21 .................... 852 7 .................... 850 22 .................... 854 8 .................... 853 23 .................... 856 9 .................... 853 24 .................... 852 10 .................... 856 25 .................... 855 11 .................... 853 26 ....................

852 i

l 12 .................... 854 27 .................... 852 t

13 .................... 855 28 .................... 853 i

14 .................... 851 29 .................... 854 l

15 .................... 852 30 .................... 854-31 .................... 857 l

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9 UNIT SHUTDOWNS AND POWER REDUCTIONS Dockst No.: 50-309 FOR DECEMBER 1996 Unit: Maine Yankee Date: 06/Jan/87 Completed By: WILLIAM LIZOTTE Telephone: 207-902-6321 i Page: 1 of 1 l

Number L.R. to 35%

i Date 861202 Type (1) F Duration (Hours) O R;ason (2) F Method (3) 4 LER # 86-000-0 System Code (4) AA Component Code (5) BLOWER-Z THE CONTROL ROOM

, BREATHING AIR TRAINS PROVIDED INADEQUATE Ccuse and VENTILATION.

Corrective Action CHECK VALVES WERE REPLACED.

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l 1. TYPE: 2. REASON: (cont) 4. SYSTEM CODE:

j (F)orced F-Administrative Exhibit G-Instructions l (S)cheduled G-Operational Error for Preparation of Data

- H-Other (Explain) Entry Sheets for

! 2. REASON Licensee Event Report A-Equipaent Failure 3.. METHOD: (LER) ~ File (NUREG.0161)

D-Maintenance or Test 1-Manual C-Refueling 2-Manual Scram 5. COMPONENT CODE:

l 3-Automatic Scram Exhibit I-Same source l

D-Regulatory Restriction E-Operator Training & 4-Other (Explain) as above.

License Examination i

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Docket No 50-309

. Unit Name Maine Yankee Date: 02/Jan/87 -

Completed by: J.M. Taylor Telephone: 207-882-6321 Report Months December, 1986 NARRATIVE

SUMMARY

OF OPERATING EXPERIENCE At the begining of the month, the plant was at 97% power due to the use of motor driven main feedwater pumps.

On December 2nd, power was reduced to 35% due to an inadequate flow rate in both control room breathing air trains.

. On December 3rd, the turbine driven main feedwater pump was returned to service.-

On December 3rd, power was increased to 97%.

On December 4th, power was increased to 99%.

On December 5th, power was increased to 100%.

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Power remained at 100% for the remainder Gf the month.

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f MAIRE HARHEE ATOMICPOWERCOMPARUe avavg,ay,?n"e%, 1 h (207) 623-3521 e

January 8, 1987 MN-87-01 GDH-87-05 Office of Resource Management United States Nuclear Regulatory Commission Hashington, D.C. 20555 Attention: Mr. Richard A. Hartfield, Chief Management Information Branch

References:

(a) License No. DPR-36 (Docket No. 50-309)

(b) NUREG-0020, Licensed Operating Reactors Status Summary Report

Subject:

Maine Yankee Monthly Statistical Report Gentlemen:

Enclosed you will find the Monthly Statistical Report for the Maine Yankee Atomic Power Station for December, 1986.

Very truly yours, HAINE YANKEE ATOMIC POWER COMPANY 0/./9 N G. D. Whittier, Manager Nuclear Engineering and Licensing GDH/hbg Enclosure cc: Mr. Ashok C. Thadani Mr. Richard H. Vollmer Mr. Pat Sears Mr. Cornelius F. Holden sd 8375L-GDH j d,

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