ML20137X823

Monthly Operating Rept for Mar 1997 for Oyster Creek Nuclear Generating Station

ML20137X823
Person / Time
Site:	Oyster Creek
Issue date:	03/31/1997
From:	Dougher J, Roche M GENERAL PUBLIC UTILITIES CORP.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
6730-97-2110, NUDOCS 9704220181
Download: ML20137X823 (7)

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{ GPU Nuclear, Inc.  !

( U.S. Route #9 South l NUCLEAR Post Office Box 388 Forked River. NJ 08731-0388 Tel 609 9714000 i

April 14, 1997 6730-97-2110 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555

SUBJECT:

Oyster Creek Nuclear Generating Staticn Docket No. 50 '219 Monthly Operating Report - March,1997 In accordance with the Oyster Creek Nuclear Generating Station Operating License No. DPR-16, Appendix A, Section 6.9.1, enclosed are two (2) copies of the Monthly Operating Data (Gray Book information) for the Oyster Creek Nuclear Generating Station.

Ifyou should have any questions, please contact Ms. Brenda DeMerchant, Oyster Creek Regulatory Affairs Engineer, at 609-971-4642.

Very truly yours, l

Michael B. Roche Vice President & Director  !

Oyster Creek j MB"JBDeM/gl  ;

I i Enclosures

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I cc: Administrator, Region I(2 copies) i NRC Project Manager l NRC Resident Inspector 9704220181 970331 PDR ADOCK 05000219 lilllllll'lllllIll3I R PDR  ;

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MONTHLY OPERATING REPORT i

? Licensee Event Reports - March,1997

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LER 97-002 was filed March 27.1997 On January 22,1997, during calibration of the Reactor Building Ventilation Exhaust Radiation monitors, the trip setpoints of the monitors, which initiate a Reactor Building Ventilation Isolation and start the Standby Gas Treatment System, were inappropriately adjusted to values higher than allowed by Technical Specificat:ons.

This condition was not discovered until February 28,1997.

The safety significance of this event is considered minimal because the Reactor Building Isolation and Standby Gas Treatment System initiation would still have occurred, and offsite dose rates wou'd still have been maintained well below 10CFR20 limits.

The root cause of this event is personnel error. Corrective actions include resetting the monitors to the proper setpoint, verification that other improper calibrations had not been performed, and refresher training for all Instrument and Controls tecimicians.

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AVERAGE DAILY PGWER LEVEL NET MWe Docket Number .: 50-219 Unit: Oyster Creek #1 Report Date: April 3,1997 Compiled By: John D. Dougher Telephone Number:- (609) 971- 2130 i

Month: March,1997 DAY MW DAY MW 1

1 640 16 643 1 2 641 17 640 3 640 18 642 4 641 19 640 5 641 20 641 6 639 21 640 ,

1 7 617 22 641 8 608 23 641 ,

I 9 612 24 637 10 610 25 643 4 11 624 26 641 12 635 27 638 13 636 28 640 14 640 29 639 15 640 30 638 31 639 i

. OPERATING DATA REPORT

, OPERATING STATUS

1. Docket: 50-219

2. Reporting Period: March,1997

3. Utility

Contact:

John D. Dougher (609) 971- 2130 ,

4. Licensed Thermal Power (MWt): 1930

5. Nameplate Rating (Gross MWe): 687.5 x 0.8 = 550 l

6. Design Electrical Rating (Net MWe): 650 ,

7. Maximum Dependable Capacity (Gross MWe): 641

8. Maximum Dependable Capacity (Net MWe): 619

- 9. If changes occur above since last report, give reasons: None j

10. Power Level to Waich Restricted, If Any (Net MWe): None

11. Reason for Restricte. I/ Any: None MONTH YEAR CUMULATIVE

12. Report Period Hours 744.0 2160.0 239064.0

13. Hours Rx Critical 744.0 2160.0 163748.8

14. Rx Reserve Shutdown Hours 0.0 0.0 918.2 l

15. Hours Generator On-Line 744.0 2160.0 160077.8 l

16. Ut Reserve Shutdown Hours 0.0 . 0.0 0.0 17, Gross Thermal Energy (MWh) 1425300 4126272 278040353

18. Gross Electric Eenergy (MWh) 490301 1420239 93349506

19. Net Electric Energy (MWh) 472938 1370412 89578978

20. Ut Service Factor 100.0 100.0 67.0

21. Ut Available Factor 100.0 100.0 67.0

22. Ut Capacity Factor (MDC Net) 102.7 102.5 61.1

23. Ut Capacity Factor (DER Net) 97.8 97.6 57.6

24. Ut Forced Outage Rate 0.0 0.0 9.7

25. Forced Outage Hours 0.0 0.0 17137.4

26. Shutdowns Scheduled Over Next 6 Months (Type,Date, Duration): None

27. If Currently Shutdown, Estimated Startup Date: N/A j

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, Oystcr Creck Station #1 Docket No. 50-219 REFUELING INFORMATION - MARCH.1997 Name of Facility: Oyster Creek Station #1  ;

1 Scheduled date for refueling shutdown: September 1998 Scheduled date for restart following refueling: October 1998 Will refueling or resumption of operation thereafter require No a Technical Specification change or other license amendment?

Important licensing considerations associated with refueling, e.g., new or different fuel design or supplier,  !

unreviewed design or performance analysis methods, significant changes in fuel design, new operating procedures:

1. General Electric Fuel Assemblies - Fuel design and performance analysis methods have been approved by the NRC.

The number of fuel assemblies (a) in the core =

560 (b) in the spent fuel storage pool = 2236 (c) in new fuel storage vault = 8 The present licensed spent fuel pool storage capacity and the size of any increase in licensed storage capacity that has been requested or is planned, in number of fuel assemblies:

Present Licensed Capacity: 2645 The projected date of the last refueling that can be discharged to the spent fuel pool assuming the present licensed capacity:

Full core discharge capacity to the spent fuel pool was lost after the 1996 refueling outage.

SUMMARY

. March 1997 l l

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1 i During the month of March the plant generated 472,938 Mwh net electric which was l 102.7% ofits MDC rated capacity.

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UNIT SHUTDOWNS AND POWER REDUCTIONS '

DOCKET NO: 50-219 UNIT NAME: Ovster Creek DATE: March 31.1997 COMPLETED BY: ' David M. Enan TELEPHONE: 609/971-4818 REPORT MONTH: March.1997 TYPE METHOD OF SHUTTING CORRECTIVE ACTIONS / COMMENTS No. DATE F: Forced DURATION REASON DOWN THE REACTOR OR S: Scheduled thours) (1) REDUCING POWER (2)

There were no significant shutdowns or power reductions during this reporting period.

SUMMARY

(1) REASON (2) METHOD

a. Equipment Failure (Explain) e. Operator Training & Lic Exam 1. Manual

b. Maintenance orTest f. Administratist 2. Manual Scram

c. Refueling g. Operational Error (Explain) 3. Automatic Scram

d. Regulatory Restnction h. Other(Explain) 4. Other (Explain)

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