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AVER AGE D AILY UNIT POWER LEVEL.

DOCKET NO. 50-313

h UNIT Unit I

DATE 03-OR 70

COMPLETED BY C_N. Shively

TELEPHONE 501/968-2519

MONTil February

DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL(MWe-Net) t MWe Neti

1 0 812i7

2 0 18 810

3 019 809

4 0 80920

8115 39 21

6 347 22 809

7 60423 809

g 781 80824

9 810 25 806

10 80726 808

, 807 80827810

12 28 Rn7

13 80929 NA

14 81030 NA

78315 33 y,,

16 771

INSTRUCTIONS

On this format.hst the average daily unit power leselin MWe-Net for each day in the reporting inonth. Compute tothe nearest whole rnegawati.

(9/77)

7903?,905:t58

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OPERATLNG DATA REPORT

DOCKET NO. 50-313DATE 03-08-79

COMPLETED BY C.N. ShivelyTELEPHONE. 501 /o 6R-7519

OPERATING STATUS

1. Unit Name: Arkansas Nuclear One - Unit I Notes

2. Reporting Period: February 1-28 1979

3. Licensed Thermal Power (MWt): 25684. Nameplate Rating (Gross MWe): 902.745. Design Electrical Rating (Net MWe): 8506. Maximum Dependable Capacity (Gross MWe): 8837. Maximum Dependable Capacity (Net MWe): 916

8. If Changes Occur in Capacity Ratings (Items Number 3 Through 7) Since Last Report.Gise Reasons:NONE

9. Power Level To Which Restricted.lf Any (Net MWe): _NONE10. Reasons For Restrictions.lf Any: NA

This Month Yr.-to-Date Cumulative

i1. Hours In Reporting Period 679 0 1416.0 36787.012. Number Of Hours Reactor Was Critical 579.8 579.8 26289.913. Reactor Resene Shutdown Hours 92.2 614.4 2604.314. Hours Generator On.Line 555.9 559.9 25769.615. Unit Reserve Shutdown Hours n0 0.0 205.216. Gross Thermal Energy Generated (MWH) 1366623.0 1366623.0 62173332.017 Gross Electrical Energy Generated (MWH) 449720_.9___ , 449720.0 20690401.018. Net Electrical Energy Generated (MWH) 429230.0 429230.0 19739776.019. Unit Senice Factor 82.7 39.3 70.120. Unit Availability Factor 82.7 39.3 70.621. Unit Capacity Factor (Using MDC Net) 76 4 16 1 64.222. Unit Capacity Factor (Using DER Net) 75.1 35.7 63.123. Unit Forced Outage Rate 17.3 60.7 13.324. Shutdowns Scheduled Over Next 6 Months (Type. Date,and Duration of Each):

o hnai,1cd R o friol i no . 3/30/79. 8 weeks

25. If Shut Down At End Of Report Period. Estimated Date of Startup: NA26. Units in Test Status (Prior to Commercial Operation): Forecast Achieved

INITIA L CRITICA LITYINITIA L ELECTRICITYCOMMERCIA L OPER ATION

(9/77)

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UNIT SilUTDOWNS AND POWER REDUCTIONS DOCKET NO. 50-313UNIT NASIE ANO-I

DATE 7/7/74COMPLETED BY .C . . ShivelyREPORT SIONTil February

TELEPIIONE 501-968-2519*

-

.

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=- o 3 -s : ._ 87., .2 e E ,s( Licensec gy =^ Cause & Cor rectise.,

No. Date 3 ~g 4 ,3 g 5 Event a3 $? Ateinn ind5 N jdj Report : NC 5L Prevent Recurrence

6.

78-9 781231 F 116.1 A 1 N/A HA Turbin Main Low Pressure Turbine Failure'

(Continued from December, 1978)

.

I 2 3 4F: Forced Reason : hiethod: Estnbit G - InstructionsS. Scheduled A. Equipment Failure (Explain: I Manual for Preparation of Data

D-Maintenance of Test 2 Manual Scram. Entry Sheets for LicenseeC Rel'ucling 3 Automatie Scram. Event Report (LI:R) File int.'RI G-D Regulatory Restriction 4-Ot her ( E xplain ) 0101iE-Operator Trainmg1 License I:xannnationF-Admnustrati e 5 --

G-Operational Error (Expl.n.0 Estatui 1 Sanie Soma(9/77) li Other ( E xplaini

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" "#> -REFUELING INFORMATION,

1. Name of facility. Arkansas Nuclear One-Unit I

2. Scheduled date for next refueling shutdown. 03-30-79

3. Scheduled date for restart following refueling. 05-30-79

4. Will refueling or resumption of operation thereafter require atechnical specification change or other license amendment?If answer is yei, what, in general, will these be?If answer is no, has the reload fuel design and core configurationbeen reviewed by your Plant Safety Review Committee to determinewhether any unreviewed safety questions are associated with thecore reload (Ref. 10 CFR Section 50.59)?

vne, Tneen- en vnsa a,ena 11 o 7Renn

5. Scheduled date(s) for submitting proposed licensing action andsupporting information. 11 o-78 (Aren,1)

6. Important licensing considerations associated with refueling, e.g.,new or different fuel design or supplier, unreviewed design orperformance analysis methods, significant changes in fuel design,new operating procedures.

Will voin,a 64 frnch fun 1 ,cen-kline ,m1 nnarnen for ,nnrnv4-,*nty 16months.

7. The number of fuel assemblies (a) in the core and (b) in the spentfuel storage poel, a) 177 b)112

8. The present licensed spent fuel pool storage capacity and the sizeof any increase in licensed storage capacity that has been requestedor is planned, in number of fuel assemblies.

present 590 increase size by 0

9. The projected date of the last refueling tha: can be dischargedto the apent fuel pool assuming the present licensed capacity.

DATE: v,rch 1988.

8

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NRC MONTHLY OPERATING REPORT

Operating Summary - February,1979

UNIT I

The Unit was placed on line following repair of the Low Pressure Turbine.It was necessary to rebalance the turbine during startup. The Unit opera-tion proceeded to 100% reactor power and operated without any significantoccurrences until 2/9 when the temperature rise across the condenser ex-ceeded the Appendix B Technical Specification limit of 15 DEGF. The hightemperature rise was due to a restriction of circulating water flow causedby a collection of trash and fish on the inlet tube sheets. The circulat-ing water inlet valves are being cycled, as necessary, to allow debris towash off; thus improving the flow rate. (Reference Non-Routine Report No.50-313/79-1.) On 2/15, the power level was reduced for a short period oftime to allow maintenance on the P8 A and B heater drain pumps. The Unitoperated throughout the remainder of the month without incident.