Text

Monthly Operating Rept for Nov 1981
	ML20066E062
Person / Time
Site:	Cook
Issue date:	12/03/1981
From:	Might A; INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	;
Shared Package
ML20066E048	List: ML20066E047; ML20066E062;
References
	NUDOCS 8211120403
	Download: ML20066E062 (7)
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CPERAT:NC DAT R..? ORT DOC:CT NO.

50-316 oA7z 12-1-81 C O M P' E d '.v A. Micht TZI E?HONg 616-664-6901 C?? RATING STATUS Donald C. Cook Plant 2

No:=s

1. Uai: b. me:

November 1981

2. Reporting ?::fod:

3391

3. U::=3edn--t Powe(MW ):

II33

4. N==pla = R :i=;(Cross Mwe):

1100

5. Desi ps Ee=:i=1 R::ia (Nec MWe):

1118 i

6. 5!-" se:= Depe:td:ble C:psci:y (Cross SIWE):

1082

7. Mn - m Dep==d:bl Qp: f:7(Net Mwe):

5,. If C.::gs Oc=r in C: pac:y R :isgs (1::=s Numh:: 3 n:oc;h D Sine: Lu: R:per:. Give R::. sons:

9. Power Leve! To WM '- K=s=ic:d,If Any (N :.h"Ne):

10. R= sons For R. =i::fons.If.8ary:

His Month

' Yr.ao.Catt Cu-- 7-Se 720 8,016 34,320

11. Ecurs In Repor:isz ?::iod 720 5.535.9 21.281 I' Numh=r Of Hou:s R==or Was Cri= :1 0

0 0

13. Rc=or Rese. e shn:down Ho=:s 720 5,437.4 22,477

14. Ecurs Gener-:: Ca.Use 0

0 0

15. Unic R.se:ve 5*autdown Ect:::

2,435,848

_1_7.923.322 71 g42 956

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16. Cross nc=:1 I :::y C4==::::d (MWH)

17. Gross Ire==i=l zoe: 7 Cece::::d s,Mwa) 798,310__,

5.791.460 22.883.290 770,905_

5,588,765 22.047.930

13. Net Ele==i=1I:=;y Ce===: d (MwH) 100

67. 8_ _

70.6

19. Unit Servic: F:=ar 100 67 6 70.6 F

20. Ucie Ar-il: hie:7 :c:or 99 64.4 65.8 2I. Uni:C:pacity ":cor(Usim:MDCNet) 97.3 63.4 65.1 2'-. Unit Qpscity. :=or (Using DEK Ne I 0

11.8 14.6

'3. Unit For: d Ou::ge R2g,

-2*.Shutdowns Scheduled Over Nex: 5 Machs (Type.Date.:nd Oc:::fon of Z:ch):

5. If Shu: Dowrt At End Of Report Period. Esti==:ed D:te of Star: p:

. 25. Units la Tes: S :: s I?nor to Ce=:== is! Op ::: font:

Foreest Achieved INITIA L CRIT *CAUTY

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AVERAGE DAILY UNIT POWER LEVEL

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i DOCKET NO.

50-316

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UNIT unit #2 DATE 12-3-81 N

COMPLEYEDBY A. Might s

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TELIP$0NE 616-465-5901 i

MONTH NOVEMBER 1981 e

N h

OAY AVERAGE DAILY POWER LEVEL DAY AVERAGI DAILY POWER LEVEL

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(MWE-Net)

(MWe-Net) u 1

1082 17 1071 2

1083 18 1069 3

1080 19 1072 I ;\\

4 2

1078 20

' s l'075 4

7 5

1078 21 1070 6

1073 '

22 1072 7

1077 23 1072 7

7.

8 1070 24 1070 9

1079 25 1068 10 1073 25 1067 11

'.1077 27 1024 s

28 10'38 12 1070 13 1069 29 =

1064 '

2 14 1066 30 1071 15

'1071 31 16

,1072 s.

s s

.c INSTRUCTIOhS

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,0rc this famat list the average daily unit p w'er level in MWe-Net for each day in the reporting month. ' Compute to the neares,t whole megawatt.

1

1 DOCKET NO.

50-316 UNIT SilUTDOWNS AND l'OWEll ItEDUCTIONS UNIT N AhlE D.C. Cook-Unit 2 DATE 12-11-81 COMPLETED llY B

A_ Sventenn ItErollT hlONill November 1981 TEl.EPilONE 616/465-5901 "t

.$ E 3

.E Licensee

,E t, b,

Cause & Corrective No.

Date Q

gg g

,gg5 Event gg 8.]

Aciion so

$E 5

3@j lleport sr ed u

!U Prevent itecurrence E

e-u eo None There were no unit shutdowns or significant power reductions during the month. The unit operated with a Capacity Factor of 99.0% (using MDC Net).

I 2

3 17: Fenced Itcason:

Method:

Exhibit G -Instructions S: Scheduleil A-liiinipinens Failure (Explain) 1-Manual for Prepaiation of Data.

11 Maintenance of Test 2 Manual Scrain.

Entry Shecis for 1.icensee C Refueling 3-Automatic Scram.

Event Report (l.lill)17ile,(NLiiti:G-D Itegulatory Itestriction 4-Olher (Explain) 0161) li Operator l' raining & License lixamination F Administrative 5

G. Operational th ror (Explain)

~Exhibil 1 - Same Somce P8/77)

Il Other (Explain) 1 i

Docket No.:

50-316 Unit Name:

D. C. Cook Unit #2 Completed By:

C. E. Murphy Telephone:

(616)465-5901 Date:

December 10, 1981 Page:

1 of MONTHLY OPERATING ACTIVITIES - NOVEMBER, 1981 Highlights:

The Unit entered this reporting period operating at 100%

power and has operated through the entire period, except for those periods of time as detailed in the summary.

Total electrical generation for this month was 798,310 mwh.

SUMMARY

11-03-81 "AB" Emergency Diesel was out of service for a.

8 hour9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months period for C & I technicians to inspect the control circuitry.

11-04-81 "AB" Emergency Diesel was again out of service for a 9 hour1.041667e-4 days 0.0025 hours 1.488095e-5 weeks 3.4245e-6 months period while the technicians continued with the control circuitry check-out.

Containment isolation valve DCR-340 (#4 Steam Generator Blowdown Valve) was inoperable for 18 hours2.083333e-4 days 0.005 hours 2.97619e-5 weeks 6.849e-6 months and again for 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months on November 5.

A faulty solonoid was replaced and the valve operated satisfactorily.

The Containment Area Fire Detection Thermistor strings were inoperable for a 3 hour3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months period due to a failure of the 12 volt power supply.

11-07-81 Reactor Power was reduced to 96% for periods of 11-13-81 3.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months to perform Turbine Valve Testing.

11-12-81 The East RHR Pump was inoperable for a 1.5 hour5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months period,for lubrication.

11-20-81 Reactor Power was reduced to 97% for a period of 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months to perform Turbine Valve Testing.

R-11 and R-12 (Containment Air Particulate and Radio Gas Detectors) were inoperable for a period' of 12.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months due to a change being made to the 50 lb. Control Air Supply Header.

QCR-300 (Letdown Isolation Valve) was inc.rerable for a period of 2.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months when the 85 lb. air gply was accidentally cut.

(Valve failed shut)

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11-23-81 The East RHR Pump was inoperable for a 10.5-hour period due to high discharge flow on an ISI Test.

11-24-81 MRV-222 (No. 2 Steam Generator Stop Valve Dump Valve) was out of service for 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months due to repair leaks. This was again removed from service for 15 minutes the same day for restroking.

11-27-81 Reactor Power was reduced 'to 96% for a period of 4.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months due to high differential on the traveling screens.

Reactor Power was reduced to 85% for a period of 7.25 hours2.893519e-4 days 0.00694 hours 4.133598e-5 weeks 9.5125e-6 months again due to the lake conditions creating traveling screen problems.

Turbine Valve Testing was performed during this period.

11-28-81 MRV-242 (No. 4 Steam Generator Stop Valve Dump Valve) was out of service for-4 hours to repair leaks.

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DOCKET NO.

50-316 UNIT NAME D. C. Cook - Unit No. 2 DATE 12-14-81 COMPLETED BY B. A. Svensson TELEPHONE

_(616) 465-5901 PAGE 1 of 2 MAJOR SAFETY-RELATED MAINTENANCE NOVEMBER,1981 M-1 DCR-340, #4 S/G blowdown containment isolation valve, would not close in the allowable time. Replaced valve stem and gaskets.

Repacked valve and had it tested.

M-2

4 steam generator stop valve dump valve, MRV-242, was leaking by. Replaced the seat ring, stem and disc. Reassembled with new gaskets and the valve was stroked and tested.

M-3

2 steam generator stop valve dump valve, MRV-222, was leaking.

by. Replaced the valve internals and reassembled with new gaskets.

The valve was stroked and tested.

C&I-l IFI-310 the East residual heat removal system low range flow, indicated 400 gpm during a zero flow condition. The bellows were refilled and the transmitter was returned to normal service.

Correct indication of the transmitter was verified.

C&I-2 QTI-040 Reactor Coolant Pump No. 4, No.1 seal leak off temperature indication, was indicating low. The resistance to current converter required calibration. The associated alarm module TB-167, No.1

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seal outlet temperature high was also recalibrated.

C&I-3 The Flux Mapping System "F" detector drive would not function as required. The channels comparator board was replaced and a function test to demonstrate operability was performed.

C&I-4 One of the Containment Fire 1 Detection System 12 volt power supplies was found failed. A spare power supply was installed and nornal operation was verified.

C&I-5 MFC-131 Steam Generator No. 3 main steam flow protection channel 1, failed to the low end of scale. The associated bistables were placed in the trip mode. The problem was investigated and found to be in the sensing lines to the transmitter. The sensing lines were blown down and the indication returned to the correct value.

The associated bistables we.re returned to normal.

C&I-6 The annunciator and status light for turbine valve closed, was received with the valve open. The cause was traced to the switch on Stop Valve D.

The proximity limit switch on Stop Valve D was replaced with a spare. The failure of the switch was attributed to vibration.

DOCKET NO.

50-316 UNIT NAME D. C. Cook - Unit No. 2 DATE 12-14-81 COMPLETED BY B. A. Svensson TELEPHONE (616) 465-5901 PAGE 2 of 2 MAJOR SAFETY-RELATED MAINTENANCE NOVEMBER,1981 C&I-7 DCR-340 Containment Isolation Valve for Steam Generator #4 blowdown, open indication would remain illuminated with the valve in the closed position.

The operation of DCR-340 was tested and found to be slow in response.

The valve was re-worked and the actuation solenoid was replaced due to air leakage. The limit switches were adjusted to provide correct indication and proper stroke time was verified.

C&I-8 During the performance of 2 THP-4030 STP.ll4 Pressurizer Pressure Protection Set IV, bistable PB-456E was found to have drifted high.

The bistables setpoint was monitored and was found to have drifted again.

Investigation into the problem identified a loose termination as the cause of the problem. The termination was tightened and the bistable maintained the correct setpoint.

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ML20066E062

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