ML17325B041

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Monthly Operating Rept for DC Cook,Nuclear Plant Unit 1 for Oct 1988.W/881107 Ltr
ML17325B041
Person / Time
Site: Cook American Electric Power icon.png
Issue date: 10/31/1988
From: Giles H, Harner J, Will Smith
INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
NUDOCS 8811180051
Download: ML17325B041 (12)
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Text

4,C CElZ RATED DISTR( BUTION DEMONS 4,TION SYSTEM REGULATE ZNFORMATZON DT/STRZSUTZO SYSTEM (RZDS) 8((</(I ACCESSION NBR:8811180051 DOC.DATE: ~La4 NOTARIZED: NO DOCKET FACIAL:50-315 Donald C. Cook Nuclear Power Plant, Unit 1, Indiana & 05000315 AUTH. NAME AUTHOR AFFILIATION GILES,H. Indiana Michigan Power Co. (formerly Indiana & Michigan Ele HARNERFJ.W. Indiana Michigan Power Co. (formerly Indiana & Michigan Ele SMITHFW.G. Indiana Michigan Power Co. (formerly Indiana & Michigan Ele RECIP.NAME RECIPIENT AFFILIATION

SUBJECT:

Monthly operating rept for Oct 1988. /881107 1 r.

DISTRIBUTION CODE: IE24D COPIES RECEIVED:LTR Nl SIZE:

TITLE: Monthly Operating Report (per Tech Specs)

NOTES:

RECIPIENT COPIES REC1PIENT COPIES ID CODE/NAME LTTR ENCL ID CODE/NAME LTTR ENCL PD3-1 LA 1 0 PD3-1 PD 5 5 SCOTT,W 1 0 INTERNAL: AEOD/DOA 1 1 AEOD/DSP/TPAB 1 1 ARM TECH ADV 2 2 NRR/DLPQ/PEB 11 1 1 NRR/DOEA/EAB 11 1 1 NRRJ3RE PB 10 1 1 NUDOCS-ABSTRACT 1 1 ~ G FILE 01 1 1 RGN3 1 1 EXTERNAL EG&G S IMPSON F F 1 1 EG&G WILLIAMSFS 1 1 LPDR 1 1 NRC PDR 1 1 NSIC 1 1 R

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NOZE I0 ALL 'RIDS" RECIPIENTS:

S PLEASE HEH? US TO REDUCE WASTEl (XMRCT 'IHE DOCUMEPZ COPQRL DESK RQGN Pl-37 (EZT. 20079) KO EIZMZNATE KKR NAME PRCH DISTRIBUTION LISTS MR DOVIMEÃIS HXJ DGNFT NEED)

TOTAL NUMBER OF COPIES REQUIRED:. LTTR 22 ENCL 20

N.R.C. OPERATING DATA REPORT DOCKET NO. 50-315 DATE 01-NOV-88 COMPLETED BY H. Giles TELEPHONE 616-465-5901 OPERATING STATUS

1. Unit Name D. C. Cook Unit '1
2. Reporting Period OCT 88 ',notes
3. Licensed Thermal Power (MWt) 3250
4. Name Plate Rating (Gross MWe) 1152
5. Design Electrical Rating (Net MWe) 1030 'i
6. Maximum Dependable Capacity (GROSS MWe) 1056
7. Maximum Dependable Capacity (Net MWe) 1020
8. If Changes Occur in Capacity Ratings (Items no. 3 through 7) Since Last Report Give Reasons
9. Power Level To Which Restricted.

If If Any (Net MWe)

10. Reasons For Restrictions. Any:

This Mo. Yr. to Date Cumm.

11. Hours in Reporting Period 745.0 7320.0 -.121272.0
12. No. of Hrs. Reactor Was Critical 672 8 ~ 6997 ' 88835.3
13. Reactor Reserve Shutdown Hours 0.0 0.0 463.0
14. Hours Generator on Line 660.0 6961.9 . 87199.4
15. Unit Reserve Shutdown Hours 0.0 0.0 321.0
16. Gross Therm. Energy Gen. (MWH) 1854946 20101392 253100390
17. Gross Elect. Energy Gen. (MWH) 589160 64S5680 82610350
18. Net Elect. Energy Gen. (MWH), 564727 6211779 79442777
19. Unit Service Factor 88.6 95.1 73.1
20. Unit Availability Factor 88. 6 95.1 73.1
21. Unit Capacity Factor (MDC Net) 74. 3 83.2 65.3
22. Unit Capacity Factor (DER Net) 73. 6 82.4 63.3
23. Unit Forced Outage Rate 11.4 4 4 8.1
24. Shutdowns Scheduled over Next Six Months (Type, Date,and Duration)-

Unit 1 C cle 10-11 Refuel 'n MJLCXRIlf Februar 15 1989.

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 88i 18005f PDR i ADO~< 881031' 05000315 PblU gE~9 I

i//

AVERAGE DAILY POWER LEVEL (MWe-Neh)

DOCKET NO. 50-315 UNIT ONE DATE 01-NOV-88 COMPLETED BY H. Giles TELEPHONE 616-465-5901 MONTH OCT 88 AVERAGE DAILY AVERAGE DAILY DAY POWER LEVEL DAY POWER LEVEL 1 896 17 898 2 899 18 899 3 899 19 539 4 900 20 231 5 898 21 829 6 896 22 902 7 897 23 901 8 897 24 899 9 899 25 900 10 896 26 899 11 564 27 903 12 0 28 903 13 0 29 903 14 61 30 903 15 616 31 902 16 900

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Cl 273 881011 68.1 . H 88-010-00 CJ XXXXXX The unit was shutdown as a precau-tionary measure due to concerns with the enviromental qualifications of the reactor vessel head vent and the Ipressurizer steam space vent solenoid valves conduit installatio being less than optimum.- A design change was implemented'to correct the conduit installation to meet enviromental qualification require-lie ments. The unit was returned to service 10-14-88 at 1748 hrs and reached 90X power (administrative power limit) on 10-15-88.

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274 881019 16. 9 .A 3 88-0 1 1-00 lA A reactor trip occurred, .caused by a spurious reactor coolant pump breaker open indication (k trip coincidence) that was induced by a failed power available bulb on a solid state protection system cabinet. After repairs the unit was returned to service on 10-20-88 at 0820 hours0.00949 days <br />0.228 hours <br />0.00136 weeks <br />3.1201e-4 months <br /> and reached 90% power (administrative power limit) on 10-21-88.

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DOCKET NO: 50-315 UNIT NAME: D. C. Cook Unit 1 COMPLETED BY: J. W. Harner TELEPHONE: (616) 465-5901 DATE: Nov. 7, 1988 PAGE: lof 2 MONTHLY OPERATING ACTIVITIES - OCTOBER 1988 H

HIGHLIGHTS:

The unit entered the reporting period at the administrative power limit of 90Ã. On October 10, 1988 the unit was shut down as a precautionary measure due to concerns with the environmental qualifications of the reactor vessel head vent and the pressurizer steam space vent solenoid valves conduit installation being less than optimum. A design change was implemented to correct the conduit installation to meet environmental qualification requirements. The unit was returned to service 10-14-88 at 1748 hrs and reached 90K power (administrative power limit) on 10-15-88.

On October 19, 1988 a reactor trip occurred, caused by a spurious reactor coolant pump breaker open indication (1/4 trip coincidence) that was induced by a failed power available bulb on a solid state protection system cabinet.

After repairs the unit was returned to service on 10-20-88 at 0820 hours0.00949 days <br />0.228 hours <br />0.00136 weeks <br />3.1201e-4 months <br /> and reached 90% power (administrative power limit) on 10-21-88.

The reporting period ended with the unit operating at the 90% administrative power limit.

Gross electrical generation for the month of October, 1988 was 589,160 MWH.

DETAILS 10-11-88 1045 Started reactor shutdown due to environmental concerns with the reactor vessel head vent and pressurizer steam space vent solenoid valves conduit installation.

1048 During the shutdown the normal boration lines were found to be inoperable due to blockage.

1146 The questioned vent valves were tagged closed and de-energized to comply with the technical specification action statement.

2140 Turbine generator removed from parallel by manual turbine trip.

2208 RCS entered Mode 3.

4 10-12-88 0645 Reactor coolant system cooldown was stopped at approximately 360'F.

10-14-88 1046 Reactor critical.

1748 Unit paralleled to the grid.

10-15-88 2055 Reactor power at 905.

10-19-88 1522 Reactor trip occurred caused by a spurious reactor coolant pump breaker open indication.

10-20-88 0252 Reactor critical.

0820 Unit paralleled to the grid.

1720 Reactor power held at 485 for excessive quadrant power tilt ratio.

2223 Resumed reactor power ascension to 905.

10-21-88 1040 Reactor power at 90%.

10-24-88 1715 The incore flux detector thimble tube leak detection system started alarming (The thimble J-1 was determined to be leaking.

The tube was cut and capped on 10-25-88 which provided complete isolation of leak).

DOCKET NO. 50-315 UNIT NAME . Cook - Unit Mo. 1 DATE Nov. 7, 1988 COMPLETED BY TELEPHONE 616 465-5901 PAGE 1 o 1 MAJOR SAFETY-RELATED MAINTENANCE OCTOBER 1988 The secondary side manway cover of the No. 4 steam generator was leaking. Leak repair was successfully performed by Furmanite injection.

Leak on incore flux detector thimble J-1 was repaired by cutting and capping the thimble tube.

724030: The 1CD-2 battery charger will not mainta'in load and voltage.

Found the current control module to be defective. Replaced module and adjusted the voltage.

735597: The quick exhaust valve on XRV-221 starting air valve on Unit 1AB diesel generator has a gasket leak.

Replaced with a new one.

735541: The 1CD diesel generator trip control cylinder is fully extended with no trip signal to energize.

Found regulator defective and replaced with a new one.

q4 Indiana Michigan Power Company Cook Nuclear Plant P.O. Box 458 Bridgrnn, Ml 49106 616 465 5901 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, D.C. 20555 November 7, 1988 Gentlemen:

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~ q~ 'll Pursuant to the requirements of Donald'. Cook Nuclear Plant Unit 1 Technical Specification 6.9. 1. 10, the attached Monthly Operating Report for the month of October 1988 is submitted.

Sincerely, W. . mi Plant Manager WGS/jd CC: D. 'H; Williams, Jr.

M. P. Alexich C. A. Erikson J. J. Markowsky D. A. Timberlake R. F. Kroeger B. L. Jorgensen M. J. Parvin J. R. Sampson E. A. Smarrella Dolly Krieger T. R. Stephens D. S. Climer R. C. Callen D. W. Paul D. R. Hahn S. L. Hall INPO Records Center ANI Nuclear Engineering Department NRC Region III EPRI--Nuclear Safety Analysis Center

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