ML17325B205

Monthly Operating Rept for Apr 1989 for DC Cook Nuclear Plant Unit 2.W/890504 Ltr

ML17325B205
Person / Time
Site:	Cook
Issue date:	04/30/1989
From:	Giles H, Will Smith INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
NUDOCS 8906120240
Download: ML17325B205 (15)

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DISCIRIBUTION DEMONSTRATION SYSTEM REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)

ACCESSXON NBR:8906120240 DOC.DATE: 89/04/30 NOTARIZED: NO DOCKET N FACIL:50-316 Donald C. Cook Nuclear Power Plant, Unit 2, Xndiana & 05000316 AUTH. NAME AUTHOR AFFILIATION GILES,H. Indiana Michigan Power Co. (formerly Indi'ana & Michigan Ele SMITH,W.G. Indiana Michigan Power Co. (formerly Indiana & Michigan Ele RECIP.NAME RECIPIENT AFFILIATION R Monthly operating rept for for Cook Nuclear I

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Apr 1989 DC Plant Unit 2.W/890504 .ltr. D

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~I 0 j Power Company Cook Nuclear Plant One Cook Place Bridgman, Ml 49106 616 465 5901 lNEMS!NA useaamz PQWElR U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 May 4, 1989 Gentlemen:

Pursuant to the requirements of Donald C. Cook Nuclear Plant Unit 2 Technical Specification 6.9.1.10, the attached Monthly Operating Report for the month of April 1989 is submitted.

Sincerely, W. G. Smith, Jr.

Plant Manager l<GS/jd cc: B. A. Svensson NRC Region III D. R. Hahn EPRI Nuclear Safety Analysis Center R. C. Callen S. L. Hall INPO Records Center ANI Nuclear Engineering Department D. H. Williams, Jr.

M. P. Alexich J. F. Kurgan J. J. Markowsky D. A. Timberlake D. W. Paul T. 0. Argenta S. H. Steinhart B. L. Jorgensen J. R. Sampson D. S. Climer E. A. Smarrella Dolly Krieger T. R. Stephens 8906i20240 S90430 PDR ADOCK 050003i6 R PDC A(pP I

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N.R.C. OPERATING DATA REPORT DOCKET NO. 50-316 DATE 1-MAY-89 COMPLETED BY H. Giles TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit 2

2. Reporting Period APR 89,'notes

3. Licensed Thermal Power (MWt) 3411

4. Name Plate Rating (Gross MWe) 1133

5. Design Electrical Rating (Net MWe) 1100

6. Maximum Dependable Capacity (GROSS MWe) 1100

7. Maximum Dependable Capacity (Net MWe) 1060

8. If Changes Occur in Capacity Ratings (Items no. 3 through 7) Since Last Report Give Reasons

9. Power Level To Which Restricted. If Any (Net MWe)

10. Reasons For Restrictions. If Any:

This Mo. Yr. to Date Cumm.

11. Hours in Report ing Period 719.0 2879.0 99311.0

12. No. of Hrs Reactor

~ Was Critical 719.0 1114.4 64709.5

13. Reactor Reserve Shutdown Hours 0.0 0.0 O.D

14. Hours Generator on Line 719.0 1064.7 63274.7

15. Unit Reserve Shutdown Hours 0.0 0.0 0.0

16. Gross Therm. Energy Gen. (MWH) 2288800 3064060 192630437

17. Gross Elect. Energy Gen. (MWH) 752650 998530 62894750

18. Net Elect. Energy Gen. (MWH) 725838 959650 60544315

19. Unit Service Factor 1DO.O 37.0 65.2

20. Unit Availability Factor 100.0 37.0 65.2

21. Unit. Capacity Factor (MDC Net) 95.2 31.4 58.9

22. Unit Capacity Factor (DER Net) 91.8 30. 3 57.4

23. Unit Forced Outage Rate 0.0 0.3 14.3

24. Shutdowns Scheduled over Next Six Months (Type, Date, and Duration):

25. If Shut Down At End of Report Period, Estimated Date of Startup:

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

Forcast Achieved INITIAL CRITICALITY INITIAL ELECTRICITY COMMERCIAL OPERATION

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AVERAGE DAILY POWER LEVEL (MWe-Net)

DOCKET NO. 50-316 UNIT TWO DATE 1-MAY-89 COMPLETED BY H. Giles TELEPHONE 616-465-5901 MONTH APR 89 AVERAGE DAILY AVERAGE DAILY DAY POWER LEVEL DAY POWER LEVEL 1 894 17 1091 2 1083 18 1095 3 1092 19 1083 4 1093 20 1065 5 1091 21 532 6 1093 22 971 7 1065 23 1097 8 563 24 1101 9 998 25 1106 10 1085 26 1093 11 1084 27 1100 12 1082 28 1100 13 1066 29 1099 14 542 30 1099 15 717 16 1099

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Rcp))tl 4 @event IIecnttc)xc 191 890401 4 N/A zz zzzzzz A power reduction from 100'4 reactor thermal power {RTP) to 65% RTP was commenced on 3/31/

in preparation for condenser inspection..

Reactor power reached 65+ RTP at 1320 hours0.0153 days <br />0.367 hours <br />0.00218 weeks <br />5.0226e-4 months <br /> on 4/1/89. During the inspection a total of one tube was replugged hnd 50 tubes rerolled in the condensers. The same day at 1345 a power increase was commenced with 10(A RTP being reached at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> the same day.

192 890408 N/A zz zzzzzz A power reduction from 100'< RTP to 55+ RTP was commenced on 4/8/89 in preparation to re" move and check the main feedpump condensers for tube leaks. At 0416 hours0.00481 days <br />0.116 hours <br />6.878307e-4 weeks <br />1.58288e-4 months <br /> on 4/9/89 reactor power was at 55% RTP. During the inspection there were no tubes found to be leaking but a diaphragm was replaced along; with some bolts on the manways. A power ascention was commenced on the same day at 2110 hours0.0244 days <br />0.586 hours <br />0.00349 weeks <br />8.02855e-4 months <br />. Reactor power reached 10(A RTP on 4/10/89 at 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br /> after a chemistry hold at 8(A RTP.

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kent<<tl a ,ttevcnt kcettttcttiz 193 890414 N/A ZZ ZZZZZZ On 4/14/89 at 2200 hours0.0255 days <br />0.611 hours <br />0.00364 weeks <br />8.371e-4 months <br /> a power reduction from 100+ RTP to 55% was commenced to remove and check the main feedpumps condensers for tube leaks. Reactor Thermal power reached 55'TP at 0340 hours0.00394 days <br />0.0944 hours <br />5.621693e-4 weeks <br />1.2937e-4 months <br /> on 4/15/89. During"M" the inspection one tube was'replugged on the main feedpump condenser and two tubes were plugged on the "E" main feedpump condenser.

A power ascension was commenced on 4/16/89 to 100+ RTP with the reactor reaching 100@ RTP at 2205 hours0.0255 days <br />0.613 hours <br />0.00365 weeks <br />8.390025e-4 months <br /> the same day.

194 890421 0 H N/A ZZ ZZZZZZ On 4/21/89 at 2205 hours0.0255 days <br />0.613 hours <br />0.00365 weeks <br />8.390025e-4 months <br /> a power reduction to 55'4 RTP was commenced to remove the main feed pump condensers for tube leak checks'n 4/22/89 at 0350 hours0.00405 days <br />0.0972 hours <br />5.787037e-4 weeks <br />1.33175e-4 months <br /> reactor power reached 56<t RTP. A power ascention to 10(A RTP was.

commenced on 4/23/89 at 0120 hours0.00139 days <br />0.0333 hours <br />1.984127e-4 weeks <br />4.566e-5 months <br /> after re-placing two plugs in the "E" feedpump condens and one plug in the "M" feedpump condenser.

The unit reaching 100tt RTP at 1115 hours0.0129 days <br />0.31 hours <br />0.00184 weeks <br />4.242575e-4 months <br /> the same.day.

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I DOCKET NO: 50-316 UNIT NAME: D.C. Cook Unit 2 COMPLETED BY: T. R. Stephens TELEPHONE: (616) 465-5901 DATE: May 4, 1989 PAGE: lof2 MONTHLY OPERATING ACTIVITIES - APRIL 1989 HIGHLIGHTS The unit entered the reporting period at 94% rated thermal power (RTP). A power reduction to 65K RTP was underway to remove a condenser half for inspec-tion for possible tube leaks. During the inspection the total of 1 tube was replugged and 50 tubes rolled in the condenser. Following the inspection the unit was taken to 100K RTP which was achieved later the same day 4-1-89. On 4-8-89 a power reduction to to 55% RTP to remove the main feedpumps to check their condensers for possible tube leaks. During the inspection there were no tubes found to be leaking, but a diaphragm was replaced along with some bolts on the manway. Following the inspections the unit was returned to 100K RTP.

On 4-14-89 power was again reduced to allow the removal of the main feed pump to check their condensers for possible tube leaks. During the inspection 1 tube was replugged on the "W" main feedpump condenser and 2 tubes were plugged on the "E" main feedpump condenser. Following the inspection power was returned to 100K RTP. On 4-21-89 power was reduced to 56K RTP to again check the main feedpump condensers. The inspection resulted in 1 tube being re-plugged on the "W" MFP and 2 tubes on the "E" MFP. A power ascention was begun to return the unit to 100% RTP. Full power was achieved on 4-23-89 and remained there for the balance of the reporting period.

DETAILS 4-1-89 0005 Reactor power at 90K RTP.

1015 Starting power reduction to 655 RTP to change out a main feedpump tube oil filter.

1320 Reactor power at 65K RTP.

1345 Starting power ascension to lOOX RTP.

2200 Reactor power at lOOX RTP.

4-5-89 1440 Discovered leak in the north east main turbine oil tank oil cooler. Possible oil leak to Non-Essential Service Water.

1725 Notified NRC via ENS that coast guard notified of oil spill.

4-8-89 2100 Commenced power reduction to 55% in preparation of removing main feed pumps to check feed pump condensers'or debris, and tube leaks.

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4-9-89 0416 Reactor power at 55% RTP.

2110 Started power ascension to lOOX RTP.

4-10-89 0215 Reactor power at 80% RTP and holding for chemistry.

0640 Commencing power ascension to 100K RTP.

1115 Reactor power at 100K RTP.

4-14-89 2200 Started power decrease to 555 RTP in preparation of removing main feedpumps from service and perform main condenser leak checks.

4-15-89 0340 Reactor power at 55% RTP.

4-16-89 1215 Started power ascension to 100% RTP.

2205 Reactor power at 100% RTP.

4-21-89 2205 Began reducing RTP to 55K to remove main feed pump condensers for leak check and debris.

4-22-89 0350 Stopped reactor power at 56K RTP.

4-23-89 0120 Started reactor power increase back to 100K RTP.

1115 Reactor power at 100K RTP.

4 DOCKET NO. 50-316 UNIT NAME D.C.Cook-Unit No. 2 DATE 4. 1999 COMPLETED BY T. R. Ste hens TELEPHONE 616 465-5901 PAGE lof1 MAJOR SAFETY-RELATED MAINTENANCE APRIL 1989 There were no significant safety related maintenance problems reported during the month of April.

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