ML20111B283

Monthly Operating Rept for Apr 1996 for Callaway Plant Unit 1

ML20111B283
Person / Time
Site:	Callaway
Issue date:	04/30/1996
From:	Affilter R, Holmes M UNION ELECTRIC CO.
To:	NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
ULNRC-3376, NUDOCS 9605140309
Download: ML20111B283 (6)

Text

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I EuNT1?if M May 7,1996 Document Control Desk Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop PI-137 Washington,DC 20555 ULNRC-3376 Gentlemen:

DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT I FACILITY OPERATING LICENSE NPF-30 MONTHIN OPERATING REPORT APRIL 1996 ,

The enclosed Monthly Operating Report for April 1996 is submitted pursuant to Section 6.9.1.8 of the Callaway Unit 1 Technical Specifications.

R. D. Affolter Manager, Callaway Plant RDA/MAH/tdf Enclosure I

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. May 7,1996 Page 2 -)

ec: Mr. L. J. Callan Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-8064 NRC Resident Inspector ,

Ms. Kristine M. Thomas Licensing Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission '

Mail Stop 13-E-21 Washington, DC 20555 Manager, Electric Department Missouri Public Service Commission 3 PO Box 360 - .

Jefferson City, MO 65102

!Mr. Thomas A. Baxter Shaw, Pittman, Potts, & Trowbridge 2300 N. Street N.W.

Washington, DC 20037 i

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4 DOCKET NO.: 50-483 UNIT NAME: CALLAWAY UNIT I DATE: 5/7/96-COMPLETED BY: M. A. liolmes J TELEPilONE: 314/676-8842 FAX: 314/676-8562 I

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PART A - OPERATIONS SUMM ARV- ..

The plant operated at approximately 100 % for the entire month of April except for:

On 4/2/96, at 1045 CDT. a fuse in the 125vde power supply to the yellow train fast close solenoid on 'B' '

Main Feedwater Isolation Valve (MFIV), AEFV0040, failed and caused the MFIV to close. The licensed control room operators immediately recognized the closure of the isolation valve, and understanding the f" inability 'to maintain steam generator levels with this condition, initiated a manual reactor trip with the plant in I

Mode I at 100% reactor power.

On 4/12/96, at 15:00, power was reduced to approximately 64 % to repair tube leaks in the 'C' Feedwater Low Pressure lleater string.

On 4/20/96, at 2:30, power was reduced to 84 % for planned maintenance on the 'B' Condensate Pump.  !

PART B- PORY AND SAFETY VALVE

SUMMARY

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PART C AVERAGE DAILY UNIT POWER LEVEL 4

DOCKET NO: 50-483 UNIT: Callaway Unit 1 r

- DATE: 5!7/96 COMPLETED BY: M. A. Holmes  ;

TELEPIIONE: 314/676-8842 t FAX: 314/676-8562 i

MONTH FEBRUARY 1996  ;

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

I 1.169 17 1.161 2 1.087 18 1.156 s

722 19 1.152 j 3 i '

4 1.155 20 1.085 L

4 5 1.173 21 1.076 6 1.174 22 1.125 ,

7 1.124 23 1.169 8 1.173 24 1.160 9 1.172 25 1.158 i.

10 1.168 26 1.170 l 11 1.154 27 1.170 12 1.110 28 1.168 13 959 29 1.171  !

14 854 30 1.172 15 1.169 31 16 1.170 Page 2 of 4

1 4 PART D : r QPERATING DATA REPORT 7 * . DOCKET NO.: 50-483 l UNIT NAME: CALLAWAY U' NIT 1 DATE: 5/7/96 COMPLETED BY: M. A,llotmes TELEPilONE: 314/676-8842 .  !

. FAX: 314/676-8562 ,

OPERATING STATUS:

(APR) (YTD) (CUM)

1. REPORTING PERIOD:

GROSS llOURS IN REPORTING PERIOD: 720 2,904.0 99,589.5 2 CURRENTLY AUTilORIZED POWER LEVEL (MWt): 3565 MAX. DEPEND. CAPACITY (MWe-Net): 1125 DESIGN ELECTRICAL RATING (MWe-Net): 1171

3. POWER LEVEL TO WillCil RESTRICTED (IF ANY)(MWe-Net): 100 %

4. REASONS FOR RESTRICTION (IF ANY):

Tills MONTil YR TO DATE CUMULATIVE

5. NUMBER OF llOURS REACTOR WAS CRITICAL 705.9 2,889.9 88,015.4

'6. REACTOR RESERVE SilUTDOWN ilOURS 0 0 0

7. IlOURS GENERATOR ON-LINE 701.0 2,866.0 86,507.4 t

8. UNIT RESERVE SilUTDOWN llOURS 0 0 0

9. GROSS TiiERMAL ENERGY GENERATED (MWil 2,415,714 10,048,782 293,007,500

10. GROSS ELECTRICAL ENERGY GENERATED 817,812 3,433,315 99,954,169 (MWII)

11. NET ELECTRICAL ENERGY GENERATED 788,508 3,287,006 95,110,378 e (MWII)

12. REACTOR SERVICE FACTOR 98.0 99.5 88.4

13. REACTOR AVAILABILITY FACTOR 98.0 99.5 88.4 ,

14. UNIT SERVICE FACTOR 97.4 98.7 86.9

15. UNIT AVAILABILITY FACTOR 97.4 98.7 86.9

16. UNIT CAPACITY FACTOR (Using MDC) 97.3 100.6 84.9

17. UNIT CAPACITY FACTOR (Using Design MWe) 93.5 96.7 81.6

18. UNIT FORCED OUTAGE RATE 2.64 1.31 2.31

19. SilUTDOWNS SCllEDULED OVER NEXT 6 MONTliS (TYPE, DATE, AND DURATION OF EACil):

Refineling Date: 10/12/96 Duration: 42 days

20. IF SilUT DOWN AT END OF REPORTING PERIOD, ESTIMATE DATE OF STARTUP:

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PART E ,

UNIT SHUTDOWNS AND POWER REDUCTIONS -

DOCKET NO.: 50-483 UNIT NAME: CALLAWAY UNIT I DATE- 5/7/96 COMPLETED BY: M. A. Holmes TELEPHONE: 3141676-8842 FAX: 314/676-8562 REPORT MONTH: APRIL 1996 METHOD OF TYPE SHUTTING DOWN F: FORCED DURATION THE REACTOR OR CORRECTIVE NO. DATE S: SCHEDULED (HOURS) REASON REDUCING POWER ACTIONS / COMMENTS 3 960402 F 19 A 2 See Summary below.

4 960412 S 0 B 4 See Summary below.

SUMMARY

3: On 4/2/96, at 1045 CDT, a fuse in the 125vde power supply to the yellow train fast close solenoid on 'B' Main Feedwater Isolation Valve (MFIV),

AEFV0040, failed and caused the MFIV to close. The licensed control room operators immediately recognized the closure of the isolation valve, and understanding the inability to maintain steam generator levels with this condition, initiated a manual reactor trip with the plant in Mode I at 100% reactor power.

4: On 4/12/96, at 15:00, power was reduced to approximately 64 % to repair tube leaks in the 'C' Feedwater Low Pressure Heater string.

REASON METHOD A: EQUIPMENT FAILURE (EXPLAIN! 1: MANUAL B. MAINT. OR TEST 2: MANUAL SCRAM C: REFUELING 3: AUTOMATIC SCRAM D: REGULATORY RESTRICTION 4: OTHER (EXPLAIN)

E: OPERATOR TRAINING AND LICENSE EXAMINATION F: ADMINISTRATION G: OPERATIONAL ERROR (EXPLAIN)

H: OTHER(EXPLAIN)

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