ML20066E054

Monthly Operating Rept for Aug 1981

ML20066E054
Person / Time
Site:	Cook
Issue date:	09/02/1981
From:	Might M INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
Shared Package
ML20066E045	List: ML20066E043 ML20066E054
References
NUDOCS 8211120400
Download: ML20066E054 (6)

Text

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OPERATINC DATA ikE? ORT 1

DOCF.ET NO.

50 Sig DATE 0-9-R1 C051PLETED SY M.A. Miaht TELE?fiONE A16 aAG 6901 O? ERAT!NG STATUS Donald C. Cook 2

Nor:8

1. Uni:Name.

August 1981

2. Reporting ? :iod:

3391_

3. LicensedD.e==IPower(MW:):

l133

4. N:meplate R::in;(Cross MWe): _

1100

3. Design Eleci=1 R::ing(Nec MWe):

1082

6. M' %um Depend:ble Capsei:7 (Cross MWe):

7. Maxi==m Depe.=d ble C p:=i:7 (Ne: 31We):

S. If Chan;es Oc: urin C. paci:y R :!:gs (Items Number 3 Through 7) Since L2st Report. Give R: sons:

9. Power Level To Which Her::i::ed.If Any (Net MWe):

10. R= sons For R:s::i::fons.If Any:

This Month Y ao-Dart Cu=u!:tive 74 5,831 32,135

11. Hours In Reporting Period 711.1 3.992.6 91.717.7

12. Number Of Hou:s Rese:or W:s C:i:i=1 0

0 0

13. Re:c:or Reserve Shu:down Hou:s 704.7 3,899.8 20,939.4

14. Hours Gene = tar on.Line 0

0 0

15. Uni: R. serve Shutdown Ecu=s 2,338,703 12,771,976 66,391,610

16. Cross The==! Ener:y Gene =:ed (MWH)

17. Gross Ele =ic=1 Energy Ge=-:2::dG.tWH) 738,550 _

4,126,220 21,218,050 712,145 3,981,402 20.440.567

13. Net EIe=i=1 E:::;y Generz:sd C.t'.rr )

i 94.7 66.9-7 0_ r,

19. Unit Se:ri= F:ctor 94.7 66.9 70.6

20. Unit Av-2:bi1Lr F.c:or bd.5 63.1 65.7

21. Uni: C:pcity [:c:or (Using MDC Net) 87.0 62.1 65.0

22. Unit C:pcity F:::or (Using DER Net) 5.3 2.1 13.2

23. Unic Forced Ou: ge R:te l

24. Shutdowns Scheduled Over Nec 5 Mo:.:hs (Type. D:te. :nd Oc:::fon of E: chi:

Maintenance shutdown scheduled for October,1981 for twn wook<:.

25. If Sh : Dowrt At End Of Repor: Pe-iod. Estim: red D:te of St:r::p:

. 25. Units In Tes: 5 ::us iP:for to Ce==ercis! Ope =tio=r:

Foreest A dd-INITIA L CRITICA LJTY

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INITIAL E*.ECTRIC W CO?.:.'.:FJ.C:A:. 0? ERA 7;ON 8211120400 810914

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("I'7 3 gDRADOCK 05000316 PDR

AVERAGE DAILY UNIT POWER LEVEL DOCKET NO.

~ 50-316 UNIT 2

DATE 9-2-81 COMPLETED BY Ann Might TELEPHONE 616-465-5901 MONTH Auaust 1981 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-Net)

(MWe-Net) 1 1033 17 1043 2

1033 18 1048 3

1032 19 1058 4

1033 20 1055 5

1035 21 1038 6

1039 22 1037 7

204 23 1079 8

4 24 993 9

829 25 1031 10 1026 26 1032 1030 11 1028 27 1021 12 1027 28 13 1027 29 1019 14 987 30 1028 15 755 31 1027 16 1037 INSTRUCTIONS On this fonnat list the average daily unit power level in MWe-Net for each day in the rercrgiae arm 9h> Commece an Rha sceararmt h8%

UNITSilUTDOWNS AND POWER REDUCTIONS DOCKET NO.

50-316 UNIT N AhlE D.C. Cook - Unit 2 DATE 9-14-81 COMPLETED ny B.A. Svensson REPORT AIONTil August 1981 TELEPilONE (616) 465-5901 PAGE 1 of 1 e.

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Cause & Cosacclive No.

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Prevent Recussence I-g 6

100 810807 F

39.3 A

1 81-041/03L-0 CB VALVEX Removed unit from service due to RCS unidentified leak rate exceeding the Technical Specification allcwed leak rate of 1 gpm (1.49 gpm).

Leak was found to be a packing leak on Loop 1 RTD By-pass Valve No. RC-108Ll.

j Valve was repacked and leak rate was b.elow 1 gpm. Unit was returned to service on 810808 and 100% power reached on 810809.

101 810814 F

0 H

4 81-039/0lT-0 EB SUP0RT Power reduced from 100% power to 60%

due to an engineering review indicat-ing that the safety-related 4KV power l

busses had not been adequately sup-ported for their seismic class.

60%

power was reached at 0245 hours0.00284 days <br />0.0681 hours <br />4.050926e-4 weeks <br />9.32225e-5 months <br /> on 810815. At 0947 the seismic supports were temporarily repaired and power increase to 100% started.

100% power was reached at 1937 on 810815.

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F: Fmceti Reason:

Melhml:

Exhibit G. Instructions S: Schetinleil A Equipment Failme(Explain) 141 annal for Preparasion of Data li Maintenance of Test 24tanual Scram.

linity Sheets fus 1.icensee C Refueling 3 Automatic Scram.

Event Repose (i.l!R) File INURl!G-D.Regulaimy Resiniction 4 Other (Explain) 0161)

I! Operator isaining & License Examinailon F Ailminislealive 5

G.Opesailonal Einor (Explain)

' Exhibit i. Same Soun e 19/77) ll Other (Explaini i

Docket No.: 50-316 Unit Name:

D. C. Cook Unit #2 Completed By:

D. R. Campbell Telephone:

(616) 465-5901 Date:

September 14, 1981 Page:

1 of,1 MONTHLY OPERATING ACTIVITIES - AUGUST,1981 Highlights:

The Unit entered this reporting period at 100% reactor power.

On August 7,1981 the Unit was shutdown to repair a packing leak on a RTD manifold isolation valve, when the RCS leak rate was cal-culated to be 1.49 GPM, tripped t'urbine generator at 0556 hour0.00644 days <br />0.154 hours <br />9.193122e-4 weeks <br />2.11558e-4 months <br />.

The Unit was reparalleled at 2113, August 7, 1981 and brought back to 100% reactor power by 1430 hours0.0166 days <br />0.397 hours <br />0.00236 weeks <br />5.44115e-4 months <br />, August 9, 1981.

Power was reduced on August 14,1981 to 60% reactor power, when it was determined that the emergency bus breaker cabinets were.not seismically adequate. _ Repairs were made and the Unit brought back to 100% power by 1937 hours0.0224 days <br />0.538 hours <br />0.0032 weeks <br />7.370285e-4 months <br />, August 15, 1981,.

The Unit was at essentially 100% power for the remainder of the reporting period.

Generatio6:

738,550 MWH.

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DOCKET NO.

50 - 316 UNIT NAME D. C. Cook - Unit No. 2 DATE 9-14-81 COMPLETED BY B. A. Svensson TELEPHONE (616) 465-5901 PAGE 1 of 2 MAJOR SAFETY-RELATED MAINTENANCE AUGUST, 1981 M-1 Reactor coolant loop No.1 RTD bypass loop valve, RC-108L1 had a packing leak.

Repacked the valve with grafoil packing.

M_- 2_

The interlocks for the inner door of the 612' elevation airlock did not work.

Reinstalled interlock helper spring and tested.

M-3 The north safety injection pump mechanical seal heat exchanger was leaking.

Replaced the line from the heat exchanger to the seal and all of the fittings.

M-4 The tapered pins on 2AB and 2CD diesel fuel rack assembly at the bell crank shaft were worn and bent.

Replaced the tapered pins and retested the engines.

M-5 No. 3 boric acid transfer pump was leaking.

Replaced the mechanical seal, gasket and frame adapter.

Reset impeller clearance and had pump tested.

C&I-l All control rods and shut-down rods with the exception of Banks C&D would not move in or out.

When the rod control alarm reset pushbutton was de-pressed, the " Urgent Failure Alarm" was received.

It was then noticed that Group 1 and Group 2 rods of control bank D were out of step by one step.

Manual stepping of the master cycler brought control bank D rods back into synchronism. The rods were tested and surveillance test was performed to verify correct rod movement.

C&I-2 Containment Air Particulate Monitor R-ll, filter paper no-motion alarm was received every half hour for several minutes duration. The filter paper slow-motion drive motor had seized, disrupting proper movement.

Replacement of the motor corrected the problem.

C&I-3 Source Range Nuclear Instrumentation Channel, N-31 was giving erroneous readings.

Investigation disclosed that triaxial cable connectors on the NI electronics drawer in the control rocm were faulty.

One cable sends high voltage to the N-31 detector preamplifier, and the other cable returns a signal to the electronics drawer.

The two connectors were cleaned and N-31 readings returned to normal.

C&I-4 With all power range nuclear instrumentation channels in agreement within M, the channel deviation light on the NI drawer was intermittently flashing. Annunciator 10, channel deviation was not received. Comparators for Channels N41, N42, N43 and N44 were found to be in calibration speci-fications.

Relay NC 46BX on the annunciator was defective and was re-placed.

The system was verified to be functioning correctly by decreasing N41 power by 2% and noting that the deviation alarm was received.

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DJCKET NO.

50 - 316 UNIT NAME

'D. C. Cook - Unit No. 2 DATE-9-14-81 COMPLETED BY B. A. Svensson

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TELEPHONE (616) 465-5901 PAGE 2 of 2 MAJOR SAFETY-RELATED MAINTENANCE AUGUST,1981 C&I-5 Radiation Monitor R-15 for the steam jet ejector failed due to a de-fective test / calibrate circuit board. A replacement board was installed and the electronics drawer was calibrated to restore R-15 to operability.

C&I-6 Control Bank Rod D4, rod. position indication displayed 215 steps with the digital demand counter at 202. The RPI channels primary and secondary voltages were measured and recorded. The CRDM ventilation discharge tem-perature was displayed by the P150 as 179.5 F.

The signal conditioning 2

module was calibrated to provide the correct output.

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