AECM-86-0139, Monthly Operating Rept for Apr 1986

Monthly Operating Rept for Apr 1986

ML20205P557
Person / Time
Site:	Grand Gulf
Issue date:	04/30/1986
From:	Hobbs S, Kingsley O MISSISSIPPI POWER & LIGHT CO.
To:	Taylor J NRC OFFICE OF ADMINISTRATION (ADM), NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
AECM-86-0139, AECM-86-139, NUDOCS 8605210454
Download: ML20205P557 (4)

Text

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Attachment to I

AECM-86/0139 l

DOCKET NO.

50-416 DATE 5/15/86 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 OPERATING STATUS 1.

Unit Name:

GGNS Unit 1 l Notes:

l 2.

Reporting Period:

April 1986 l

l 3.

Licensed Thermal Power (MW ):

3833 MWT l

l 4.

Nameplate Rating (Gross MW ):

1372.5 MWE l

l l

5.

Design Electrical Rating (Iet MW ):

1250 MWE l

l 6.

Maximum Dependable Capacity (GroIs MW ):

1157 MWE l l

7.

Maximum Dependable Capacity (Net MW )I 1108 MWE l l

8.

If Changes Occur in Capacity RatingI (Items Number 3 Through 7) Since Last Report. Give Reasons:

NA 9.

Power Level To Which Restricted, If Any (Net NW ): 60 percent (-700 MWE-Net)

10. Reasons For Restrictions, If Any: Planned administrative power reduction for economic and load dispatch considerations.

Power level may exceed 60 percent depending as system load demand.

This Month Yr to Date Cumulative i

11. Hours In Reporting Period 720 2,880 13,377

12. Number of Hours Reactor Was Critical 633.2 2,556.2 9,281.4

13. Reactor Reserve Shutdown Hours 0

0 0

14. Hours Generator On-Line 609.7 2,451.6 8,198.6

15. Unit Reserve Shutdown Hours 0

0 0

16. Gross Thermal Energy Generated (MWH) 1,472,892 6,225,433 22,181,926

17. Gross Electrical Energy Generated (MWH) 432,360 1,860,420 6,632,730

18. Net Electrical Energy Generated (MWH) 408,299 1,754,086 6,229,798

19. Unit Service Factor 84.7 85.1 70.5

20. Unit Availability Factor 84.7 85.1 70.5

21. Unit Capacity Factor (Using MDC Net) 51.2 55.0 54.5

22. Unit Capacity Factor (Using DER Net) 43.4 48.7 48.5

23. Unit Forced Outage Rate 15.3 14.9 12.5

24. Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):

Refueling Outage scheduled for September, 1986

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

NA

26. Units In Test Status (Prior to Commercial Operation).

Forecast Achieved l

INITIAL CRITICALITY 08/18/82 INITIAL ELECTRICITY 10/20/84

{

COMMERCIAL OPERATION

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07/01/85 l

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Attachm:nt to AECM-86/0139 DOCKET NO.

50-416 UNIT 1

DATE 5/15/86 COMPLETED BY S. H. Hobbs TELEPHONE 601-969-2458 MONTH April 1986 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MW -Net)

(MW -Net)

I 636 17 734 2

641 18 710 3

640 19 702 4

646 20 697 5

650 21 712' 6

640 22 717 7

505 23 720 8

0 24 706

)

9 0

25 704 10 0

26 700 11 0

27 661 12 113 28 693 13 598 29 692 14 659 30 693 j

15 714 31 i

16 730 i

f

)

4

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Attachment to

~ i AECM-86/0 139 I

UNIT SHUTDOWNS AND POWER REDUCTIONS l

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-416 4

UNIT NAME Unit 1 DATE S/15/86 3

COMPLETED BY S.

H.

Hobbs TELEPHONE 601-969-2458 REPORT MONTH April 1986 l

N l

Method or Licensee Cause & Corrective I No.

Date Type Du ra t ion Reason Shutting Down Event System Component Action I

(1)

Hours I (2)

Reactor Report #

Code Code Prevent Recurrence I

I (3)

(4)

(5) 86-07 4/7/86 F

110.3 G

2 86-011 SB RV A Main Steam Line Safety Relief 4

I Valve inadvertently lif ted as a result or a maintenance work activity. The SRV could not be verified closed within 2 minutes l

which mandated a Technical l

I I

Specification requi red shutdown.

I I

I l

Corrective actions include l

'reinstruction, personal i

disciplina ry action, and further i

I evaluation on reducing SRV reclosure times. A reci rculation I

pump seal was replaced during the outage.

i-I 2

3 4

F: Fo rced Reason:

Method:

Exhibit G - Instructions i

S: Scheduled A-Equipment Fa i lure 1-Manual for Preparation of Data (Explain) 2-Manual Scram Entry Sheets for Licensee B-Maintenance or Test 3-Au toma t ic Sc ram Event Report (LER)

C-Refueling 4-Continued File (NUREG-0161) 8 D-Regulatory Restriction 5-Reduced load E-Ope ra to r T ra i n i ng &

6-Other.

Licensing Examination L

F-Admi n i st ra t ive 5

G-Operationa l Error Exhibit 1-Same Source (Explain)

H-Other (Expla in)

• in accordance with NUREG 1022 l

4 i

l J16AECM86050902 - 8

.. _. -.. _ ~.. -. _ _ -.. _, - _ _,..... - -. - _. - - _, ~ ~ ~ - _ _... -. _.-_ _ -., -.. - - _.

MISSISSIPPI POWER & LIGHT COMPANY Helping Build Mississippi P. O. B O X 16 4 0, J A C K S O N, MIS SIS SIP PI 39215-1640 May 15, 1986 O. D. KINGSLEY, JR.

VICE PRESIDENT NUCLE AR OPERATIONS Mr. James M. Taylor, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D. C.

20555 Attention:

Document Control Desk

SUBJECT:

Grand Gulf Nuclear Station Unit 1 Docket No. 50-416 License No. NPF-29 Monthly Operating Report AECM-86/0139 In accordance with 10CFR50.36, Mississippi Power & Light Company (MP&L) is providing twelve copies of the Monthly Operating Report for Grand Gulf Nuclear Station Unit 1 for April,1986 (attachment).

If you have any questions or require additional information, please contact this office.

Yours

uly,

/

\\

ODK:bms Attachment cc: Mr. T. H. Cloninger (w/a)

Mr. R. B. McGehee (w/a)

Mr. N. S. Reynolds (w/a)

Mr. H. L. Thomas (w/o)

Mr. R. C. Butcher (w/a)

Dr. J. Nelson Grace, Regional Administrator (w/a)

U. S. Nuclear Regulatory Commission Region II 101 Marietta St., N. W., Suite 2900 Atlanta, Georgia 30323 1

Chief (w/2)

)

Office of Resource Management O. S. Nuclear Regulatory Commission Washington, D. C.

20555 g

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1 J16AECM86050902 - 1 Member Middle South Utilities System

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