Text

Monthly Operating Rept for May 1984
	ML20092L917
Person / Time
Site:	Cook
Issue date:	05/31/1984
From:	Gillett W, Will Smith; INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	; NRC OFFICE OF RESOURCE MANAGEMENT (ORM)
References
	NUDOCS 8407020073
	Download: ML20092L917 (8)
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1. Uni:N:cte: Donald C. Cook 2

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2. Repor:i ; ?::ied:.

May, 1984

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n 00CXET t10. 50-316 UtlIT 2 DATE ' 6/1/84 i

CCMPLETED BYli. T. Gillett TELEPH0!iE 616/465-5901 e

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. M0 tith May, 1984 i

DAY-AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWE-Net)

(MWe-Net) 1 17 4

2 18 i-

.3 19 4

20 5

t 21 i

6 22 7

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10 25 t

11 27-

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28 13 29

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~INSTRUCTICNS

'On this format list the average daily unit pcwer level in MWe-Net for each day in. the recortinc month.

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d-liOCKET NO. _ 'iG-316

. LJNITSiltilDOWNS AND POWER REDUCTIONS UNIT NAME D. C.' Cook-Unit 2

'DATE 5-11-84

- HEPORT MONTil May,'1984' COMPI ETED itY.~ B. - A. Svensson -

TE!1PiiONE : 616/465-5901 Page :1 of 1_

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147 840310 S-744 B&C 1

'N.A.

ZZ ZZZZZZ-The-Unit was removed from service on 840310 for scheduled on 840310 for scheduled Cycle IV-V refueling /

maintenance outage. Refueling activities have been completed and-prepara_tions for the containment integrated leak rate test are presently in progress, Estimated return to service date is 840628, i

1 3

-1 12: l'us ccil Reason:

Methanl:

lishibis G - Instincsi.uis S: St hcalnical

. A l'ignepmer. I;aihne (fixplain)

. I Manual hu Psepaiasion of Data is-Maintenance ni Test 2 Manual Sesans.

linisy Sheets fm I.iccusec C.itefuchng 3 Antomatic Scram.

liven Repine it.I!N)l' ale INtlHi&

li.Hegulainiy Hestsicsimi Othes (limplain) 01611 1 -Ope atos Training & license I;maminatina I: Ailminist ative 5

G Opciational Es sus liixplain t

'lixhthit 1 - Same S nuce es/77)

II Olhes (lixplain r

Docket No.:

50-316

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Unit Namo D. C. Cook Unit 2 Completed By:

G. J. Peak Telephone:

(616) 465-5901 Date:

6/11/84 Page:

1 of 1 MONTHLY OPERATING ACTIVITIES - MAY 1984 Highlights:

The Unit entered the. reporting period with the core completely unloaded and all-fuel in the spent fuel pit.

The fuel was moved back into the vessel and the vessel head and associated equipment was subsequently reinstalled.

Diesel Generator AB failed this. reporting period as it. tripped on overspeed.

This was the fourth failure of a Unit 2 Diesel in the last 100 valid tests and in accordance with Technical Specification 4.8.1.1.2a the testing frequency of both Unit 2 Diesels is now three days.

As the reporting period came to an end, the~ Unit was-in Mode 5 with the Reactor Coolant System at the halt loop elevation.

Summary:

5/3/84

-The movement of fuel from the spent tuel pit to the vessel began at 1239. hours.

5/7/84 The fuel shuffle was complete at 1123 hours0.013 days 0.312 hours 0.00186 weeks 4.273015e-4 months .

5/8/84-An inadvertant safety injection occurred at 1536 hours0.0178 days 0.427 hours 0.00254 weeks 5.84448e-4 months during a surveillance test.

5/9/84 The reactor head was set on the vessel flange at 1622 hours0.0188 days 0.451 hours 0.00268 weeks 6.17171e-4 months , and the reactor coolant system was drained to half loop at 2147 hours0.0248 days 0.596 hours 0.00355 weeks 8.169335e-4 months .

5/13/84 Mode 5 was entered at 1102 hours0.0128 days 0.306 hours 0.00182 weeks 4.19311e-4 months .

5/14/84 An Unusual Event was declared at 0446 hours0.00516 days 0.124 hours 7.374339e-4 weeks 1.69703e-4 months due to both Diesel Generators being inoperable.

CD Diesel Generator was declared operable at 0833 hours0.00964 days 0.231 hours 0.00138 weeks 3.169565e-4 months and the Unusual Event was terminated at 0840 hours0.00972 days 0.233 hours 0.00139 weeks 3.1962e-4 months .

The Control Room Cable Vault Halon System remains inoperable as of 1707 hours0.0198 days 0.474 hours 0.00282 weeks 6.495135e-4 months on 4/14,C3.

The backup CO System remains operable.

2

Y DOCKET NO.

50 - 316 UNIT NAME D.

C. Cook -Unit No. 2 ga. ;.

DA"5 6-11-84

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U'dPLETED BY B. A.

Svensson UdLEPHONE (616) 465-5901 PAGE 1 of 2 I

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-MAJOR SAFETY-RELATED MAINTENANCE MAY, 1984

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'M-1

. QRV-161, 75 'GPM letdown orifice isolation was leaking air.around.the actuator.

The actuator diaphragm was replaced.

The valve was tested and j

returned to service.

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'M-2 QRV-160, 45lGPM letdown orifice isolation was j

leaking air around.the actuator.

The actuator diaphragm was replaced.

The' valve was tested and I

returned.tx) service.

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i EM-3 The West Centrifugal-Charging Pump _ developed

. inboard and~ outboard mechanical-seal leakage.-

. i Both inboard and outboard shaft sleeve 0-rings were replaced.

The pump was tested and returned-

.tx) service.

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' M-4

'.The West-Centrifugal Charging Pump was inspected-for. cladding damage. -Two.very' minor indications

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were found'which.did not require. repair.

The pump was-reassembled, tested and returned to service.

M-5 Valve N-159, Nitrogen to Pressurizer Relief' Tank was leaking by excessively.

The valve was disassembled, seat l lapped and' reassembled with:a new. plug, spring:and gasket.

LM-6 Inspection of the East Centrifugal Charging Pump

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casting revealed. cracks in the' cladding.

The' i

. cracks were ground-out and filled with. weld.

The-pump was 'then reassembled :using new seals and a new' outboard bearing.- Functional testing was performed and the pump _was returned to service.

j M-7.

CCW-243-72 was' leaking by. excessively.

The valve was disassembled ~and cleaned.

Seating surfaces-were checked with'Dyken Hi-Spot Blue and were found to have a proper; contact pattern..

The valve Lwas then reassembled'and returned to service.

l M-8

' Inspection of 2-WMO-734 East CCW Heat Exchanger

Outlet' valve revealed a cracked seat.

The valve was removed'and a new Pratt valve installed.

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sf M-9 IMO-314, 2 East-Residual Heat Removal Pump discharge crosstielwould not close.

The bevel gear'which' enables manual operation was replaced and the starter coil-was tightened.

Functional l testing was performed satisfactorily and the valve

. war returned to service.

.M-10'

. Check valve #CS-321 was observed to be leaking

~ through1 excessively.

A new disc and_ gasket _were installed.

CEI-1 LLeak atiseal' table-#C-8.

Tightened _ connector to stop the: leak.

- C&I 'N-32.is erratic and reading high.: Remade cable connectors, replaced detector, replaced spacers-and : readjusted for STP..STP indicated operability.

. C&I-3 East RHR Hx outlet regulator valve IRV-310 would not operate..The positioner was repaired by

. replacing the pilot stem and valve seat and the'

" valve'was-checked for operation.

C&I-4'

. Critical control room power inverter failed when a_ capacitor in the "C-1" group shorted.

All-eight capacitors in the "C-1" group were replaced.

A blown-100' amp fuse was changed, the. inverter's frequency-was adjusted to 60 hz and the inverter was returned to. service.'

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b Page 2 of 2

s IIOCKETNo. 50-316.

81 Nil' SIR 13pOWNS ANA)POWEst IREintlCTIONS UPET NAnsE D.C. Cook - Unit 2 DATE 5-7-84 ItEFORI44GNIIG APRIL, 1984 COMPT.ETEll ey B.A. Svensson TELErf80NE 616/465-5901 6/11/84 PAGE 1 of 1 c

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147 840310 S

719 B&C 1

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ZZ ZZZZZZ The Unit was removed from service on 840310 for scheduled Cycle IV - V refueling / maintenance outage.

Re-fueling activities are presently in progress. Estimated return to ser-vice date is 840620.

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I:. l'enced Iteasens; Mceh =l:

linledue G - Insasutsaimis i

S: &l cdideal A l'ignepnicea 1 adme (1.nplanel i Manual fos Psepasasi m al llata j

is Maisdesiance or Tess -

2 Manual Sciam.

linsay St.cces fin liensec O ltefueling 3-Automatic Ssam.

livent Repius ll liRI17de INilHI G-D Negidaenay Hestsactiene 4 Delace ll.~splaml 0161)

I Opceasoe Isaining & i kcuse 1 manianassim 12 Adnumstsatsvc 5

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,,;",,, IN0 LANA & MICHIGAN ELECTRIC COMPANY DONALD C. COOK NUCLEAR PLANT P.O. Box 458, Bridgman, Michigan 49106 (616) 465-5901 June 11, 1984 Director, Office of Management Information and Program Control U.

S. Nuclear Regulatory Commission Washington, D. C.

20555 Gentlemen:

Pursuant to the requirements of Donald C. Cook Nuclear Plant Unit 2 Technical Specification 6.9.1.6, the attached Monthly Operating Report for the Month of May, 1984 is submitted.

We have also attached a revised copy of the Unit Shutdowns and Power Reductions Report for the months of April, 1984 which has been corrected to show 719 hours0.00832 days 0.2 hours 0.00119 weeks 2.735795e-4 months in the " Duration" column.

Sincerely, LM W. G.

Smith, Jr.

Plant Manager

.WGS cg Attachments cc:

J. E. Dolan M.

P. Alexich R. W. Jurgensen NRC Region III E.

R. Swanson R. O. Bruggee (NSAC)

R. C. Callen S. J. Mierzwa R.

F. Kroeger B.

H. Bennett J. D. Huebner J. H. Hennigan A. F. Kozlowski R. F. Hering J. F. Stietzel PNSRC File INPO Records Center ANI Nuclear Engineering Department

$?

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ML20092L917

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