1CAN018703, Monthly Operating Rept for Dec 1986

Monthly Operating Rept for Dec 1986

ML20212P893
Person / Time
Site:	Arkansas Nuclear
Issue date:	12/31/1986
From:	Enos J, Gobell J ARKANSAS POWER & LIGHT CO.
To:	Bassett H NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
1CAN018703, 1CAN18703, NUDOCS 8703160316
Download: ML20212P893 (6)

Text

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OPERATING DATA REPORT

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DOCKET N0:

50-313 O'

DATE:

December 1986 COMPLETED BY:J. N. GoBell TELEPHONE:

(501)964-3251 OPERATING STATUS 1.

Unit Name: Arkansas Nuclear One - Unit 1 i

2.

Reporting Period:

December 1-31, 1985 3.

Licensed Thermal Power (MWt):

2,568 4.

NameplateRating(GrossMWe):

902.74 6.

MaximumDependableCapacity(GrossMWe):- 883

/l 5.

Design Electrical Rating (Net MWe): 850

_8_36 Maximum Dependable Capacity (Net MWe)(: ItemsNumber3Through7)Since -l 7.

If Changes Occur in Capacity Ratings 8.

Last Report, Give Reasons:

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Power Level To Which Restricted.

If Any (het MWe):

None

10. Reasons For Restrictions.

If Any: None 140NTil YR-TO-DATE CUMULATVE

11. Hours in Reporting Period....

"T4E0 8,760.0 105,499.0

12. Number of Hours Reactor was Critical.....................

71.8 5,536.5 71,199.8

13. Reactor Reserve Shutdown Hours........................

0.0 0.0

.i,044,0

14. Hours Generator On-Line......

4.5 5,447.7 69,705.8,

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15. Unit Reserve Shutdown Hours..

0.0 0.0 817.5

16. Gross Thermal Energy Generated (MWH)........................

9,837.0 11,138,531.0 h

?5,755.0

17. Gross Electrical Energy Generated (MWH)..............

610.0 3,792,135.0 54?,'d.860.0

18. Net Electrical Energy Generated (MWH)..............

-10,277.0 3,573,153.0 fi,6EG,036.0

19. Unit Service Factor..........

0.6 62.2 66.1

20. Unit Availability Factor.....

0.6 62.2 66.8

21. Unit Capacity Factor (UsingMDCNet)..............

-1.7 48.8 59.5

22. Unit Capacity Factor (UsingDERNet)..............

-1,6 48.0 57.6

23. Unit Forced Outage Rate......

78.6 8.1 14.2 24 Shutdowns Scheduled Over Next 6 Months (Tyns, Date, and Duration of Each):

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25.

If Shut Down At End of Report Period. Estimated Date of

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Startup:

26. Units in Test Status (Prior to Commercial Or.erati6n):

Forocast Achfeved INITIAL CRITICALITY INITIAL ELECTRICITY jI

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COMMERCIAL OPERATION

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JAVERAGE DAILY UNIT POWER LEVEL 4

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DOCKET N0:

50-313 UNIT:

One DATE:

December 1986 COMPLETED BY: J.-N. GoBell

/'l TELEPHONE:

-(501)964-3251 MONTH December 1986

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• M' DAY' AVERAGE DAILY POWER LEVEL 1>-

,(MWe-Net) i

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1.............

-4 2.............

4 3.............

-2 4.............

-4 a

5.............

-5 6.............

-4

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7.............

-4 f

8.............

-4,

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9.............

-5 J-10..........;.

-5 11............

-7 12............

-8 13............

-7 14

.....l...c..

-8 15

.....J......

-8 16...........~'

-8 17............

-8 18............

-9 19.............

-23 20............

-32

'21'............

-33

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22............

-33 23..........

-31 24." c;........

-13

' f 25............

-9 i

l,y 26............

-12 I

27............

-30

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28............

-34 T

291............

-34 I'

if" 30............

-34 l/

31............

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AVGS:

-14 f-INSTRUCTION I

1 On this format, list the average daily unit power level in MWe-Net for each day in reporting month. Compute to the nearest whole megawatt.

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NRC MONTHLY OP RATING REPORT s

OPERATING

SUMMARY

DECEMBER 1986 ' i r

s UNIT-ONE N

Unft One began the month of December in cold shutdown continuing the IR7 refueling outage. On the thirty-first at 0302 hours0.0035 days <br />0.0839 hours <br />4.993386e-4 weeks <br />1.14911e-4 months <br />, the unit was placed on line and began power escalation. At 0717 hours0.0083 days <br />0.199 hours <br />0.00119 weeks <br />2.728185e-4 months <br /> on the thirty-first with the unit at approximately 20% power, the reactor tripped due to integrated control-system problems. The unit was placed back on lir.e at 2350 hours0.0272 days <br />0.653 hours <br />0.00389 weeks <br />8.94175e-4 months <br /> on the thirty-first and ended the month operating at approximately 15% power.

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5 UNIT SHUTDOWNS AND POWER REDUCTIONS.

REPORT FOR DECEMBER-1986, DOCKET NO 50-313 UNIT NAME AND Unit 1 DATE December 1986 COMPLETED BY J. N. GoBell TELEPHONE (501)964-3251 Method of Licensee Cause &' Corrective Duration Shutting Event.

System Component

' Action to-No.

Date Typel (Hours)

Reason 2 Down Reactor 3 Report #

Code 4 Code 5 Prevent Recurrence 8609 12/01/86 S 723 C

4 N/A N/A N/A Continuation of' refueling outage IR7..

8610 12/31/86 F 16.5 A

3 1-LER-86-008 AB CPU Reactor trip dua to ICS problems.

1 2

3 4

F:

Forced Reason:

Method:

Exhibit G - Instructions-S: Scheduled A-Equipment Failure (Explain) 1-Manual for Preparation of Data B-Maintenance or Test 2-Manual Scram.

Entry Sheets for Licensee C-Refueling 3-Automatic Scram.

Event Report (LER) File (NUREG-D-Regulatory Restriction 4-Continuation 1022)

E-Operator Training &

5-Load Reduction License Examination 9-Other 5

F-Administrative Exhibit I - Same Source G-Operational Error (Explain)

H-Other (Explain) 6

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DATE: December 1986 REFUELING INFORMATION 1.

Name of facility: Arkansas Nuclear One - Unit 1 2.

Scheduled date for next refueling shutdown. April 1988 3.

Scheduled date for restart following refueling. June 1988 4.

Will refueling or resumption of operation thereafter require a technical specification change or other license amendment? If answer is yes, what, in general, will there be? If answer is no, has the reload fuel design and core configuration been reviewed by your Plant Safety Review Committee to determine whether any unreviewed safety questions are associated with the core reload (Ref. 10 CFR Section 50.59)?

Unknown at this time. Cycle design has not been finalized.

5.

Scheduled date(s) for submitting proposed licensing action and supporting information.

If necessary, March 1988.

6.

Important licensing considerations associated with refueling, e.g.

new or different fuel design or supplier, unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures.

Zircaloy spa a r grids, reconstitutable upper end fittina, gray axial power shaping rod assemblies, and "retainerless" assembly design.

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The number of fuel assemblies (a) in the core and (b) in the spent fuel i

storage pool, a) 177 b) 448 8.

The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is

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planned, in number of fuel assemblies.

present 968 increase size by 0 i

9.

The projected date of the last refueling that can be discharged to the l

spent fuel pool assuming the present licensed capacity.

DATE:

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!lil ARKANSAS POWER & LIGHT COMPANY POST OFFICE BOX 551 UTTLE ROCK ARKANSAS 72203 (501) 371-4000 January 15, 1987 ICAN018703 Mr. Harold S. Bassett, Director Division of Data Automation and Management Information

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Office of Resource Management ~

U. S. Nuclear Regulatory Commission Washington, D. C.

20555

SUBJECT:

Arkansas Nuclear One - Unit 1 Docket No. 50-313 License No. DPR-51 Monthly Operating Report

Dear Mr. Bassett:

The Arkansas Nuclear One - Unit 1 Monthly Operating Report for December 1986 is attached.

Very truly yours, I

J. T Enos, Manager Nucl. ar Engineering and Licensing JTE:MCS:sg Attachment cc: Mr. Robert D. Martin Regioral Administrator U. S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 1000 Arlington, TX 76011 Mr. James M. Taylor, Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission

>j Washington, DC 20555

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MEMBEA MiDOLE SOUTH UTIUTIES SYSTEM