ML20076H074

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Monthly Operating Rept for Sept 1994 for Oyster Creek Nuclear Generating Station
ML20076H074
Person / Time
Site: Oyster Creek
Issue date: 09/30/1994
From: J. J. Barton, Edelmann P
GENERAL PUBLIC UTILITIES CORP.
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
C321-94-2160, NUDOCS 9410210069
Download: ML20076H074 (7)


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Route 9 South Forked River, New Jersey 08731-0388 609 971-4000 Writer's Direct Dial Number:

L C321-94-2160 October 12, 1994 U.S. Nuclear Regulatory Commission ATrN: Docuinent Control Desk Washington, D.C. 20555

Dear Sir:

Subject:

Oyster Creek Nuclear Generating Station Docket No. 50-219 Monthly Operating Report - September,1994 In accordance with the Oyster Creek Nuclear Generating Station Opemting License No.

DPR-16, Appendix A, Section 6.9.1.C, enclosed are two (2) copies of the Monthly Operating Data (gray book information) for the Oyster Creek Nuclear Generating Station.

If you should have any questions, please contact Brenda DeMerchant, Oyster Creek Licensing Engineer at (609) 971-4642.

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.J.

larton

'ic President and Director i

y ter Creek JJB/BDEM: jc Attachment cc:

Administrator, Region 1 Senior NRC Resident Inspector Oyster Creek NRC Project Manager (C:\\wp51\\demercha\\MOR-RPT.SEP) 9410210069 940930 PDR ADOCK 05000219 R

PDR GPU Nuclear Corporation is a subsidiary of General Pubhc Utrhties Corporation I j i

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SUMMARY

September.1994 Oyster Creek entered September at full power and maintained full power operation until September 9,1994 when the shutdown for the fifteenth refueling outage began. The generator was taken off-line at 2:49 AM September 10, 1994. The plant generated 127,456 net megawatt hours for the month of September.

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i MONTIILY OPERATING REPORT LICENSEE EVENT REPORT The following Licensee Event Report was submitted during the month of September,1994:

LER 94-015 On August 8,1994 at approximately 1100 hours0.0127 days <br />0.306 hours <br />0.00182 weeks <br />4.1855e-4 months <br />, both Containment Spray and Emergency Service Water systems were declared inoperable due to lower than expected flow rates for Emergency Service Water pumps due to a release of biological material within the system that plugged the flow sensing element. A 30 hour3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br /> plant shutdown was commenced per Technical Specifications. System 2 was then started, run, and declared opemble after continued operation raised the indicated flow to within the operability limit. The reactor was returned to full power prior to completion of the shutdown. The cause of this event was determined to be the release of Blue Mussel shells and other biological debris into the system.

Immediate corrective action was taken to clean, inspect, and return the systems to operability. Additional corrective actions are planned to inspect and clean Emergency Service Water piping during the upcoming refueling outage and install inspection ports in the affected systems to assist in the early detection of possible future biological concerns

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OPERATING DATA REPORT OPERATING STATUS j

1.

DOCKET:

50-219 I

2.

REPORTING PERIOD:

9/94

3. UTILITY CONTACT:

PAUL G.

EDELMANN (609-971-4097) 4.

LICENSED THERMAL POWER (MWt):

1930

5. NAMEPLATE RATING (GROSS MWe):

687.5 x 0.8 = 550 6.

DESIGN ELECTRICAL RATING (NET MWe).

650 7.

MAXIMUM DEPENDABLE CAPACITY (GROSS MWe) :

632

8. MAXIMUM DEPENDABLE CAPACITY (NET MWe):

610 9.

IF CHANGES OCCUR ABOVE SINCE LAST REPORT, GIVE REASONS:

NONE

10. POWER LEVEL TO WHICH RESTRICTED, IF ANY (NET MWe).

NONE

11. REASON FOR RESTRICTION, IF ANY:

NONE MONTH YEAR CUMULATIVE

12. REPORT PERIOD HOURS 720.0 6551.0 217151.0
13. HOURS RX CRITICAL 223.9 5776.0 145375.0
14. RX RESERVE SHUTDOWN HRS 0.0 0.0 918.2
15. HRS GENERATOR ON-LINE 218.8 5717.4 141919.1
16. UT RESERVE SHTDWN HRS 0.0 0.0 0.0
17. GROSS THERM ENERGY (MWH) 408442 10785252 243898629 1E. GROSS ELEC ENERGY (MWH) 134461 3571502 81815816
19. NET ELEC ENERGY (MWH) 127456 3433179 78480893
20. UT SERVICE FACTOR 30.4 87.3 65.4
21. UT AVAIL FACTOR 30.4 87.3 65.4
22. UT CAP FACTOR (MDC NET) 29.0 85.9 59.0
23. UT CAP FACTOR (DER NET) 27.2 80.6 55.6
24. UT FORCED OUTAGE PATE O.0 5.5 10.3
25. FORCED OUTAGE HRS 0.0 332.5 16289.8
26. SHUTDOWNS SCHEDULED OVER NEXT 6 MONTHS (TYPE, DATE, DURATION) 15-R OUTAGE, SEPTEMBER. 10, 1994, 65 DAYS 27 IF CURRENTLY SHUTDOWN, ESTIMATED STARTUP DATE:

14 NOV 94

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l AVERAGE DAILY POWER LEVEL NET MWe DOCKET #.

.50-219 UNIT.

....... OYSTER CREEK #1 REPORT DATE.

10-04-94 COMPILED BY

. PAUL G.

EDELMArm TELEPHONE #

.609-971-4097 MONTH:

SEPTEMBER, 1994 l

DAY E

DAY E

1.

609 16.

0 2.

611 17.

0 3.

607 18.

0 4.

615 19.

0 5.

618 20, 0

6.

618 21.

0 7.

615 22.

0 l

8.

614 23.

0 9.

473 24.

0 10.

7 25.

0 11.

0 26.

0 12.

0 27.

0 13.

0 28.

0 14.

0 29.

0 15.

0 30.

0 31.

1 Oyster Creek Station #1 Docket No. 50-219 i

REFUELING INFORMATION - SEPTEMBER, 1994 Name of Facility: Oyster Creek Station #1 Scheduled date for next refueling shutdown:

September 10, 1994 Scheduled date for restart following refueling:

Currently projected for November 14, 1994 Will refueling or resumption of operation thereafter require a Technical Specification change or other license amendment?

No l

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:

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

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1 The number of fuel assemblies (a) in the core 0

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(b) in the spent fuel storage pool 2600 (c) in dry storage 32

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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:

2600 Planned Increase in Licensed Storage Capacity:

45 The actual fuel storage capacity of the spent fuel pool is 2645 assemblies.

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

Based on a reload of 172 bundles, full core discharge capacity to the spent fuel pool will be lost after the 1994 refueling outage.

UNIT SHUTDOWNS AND POWER REDUCTIONS DOCKET NO:

50-219 UNIT NAME: Ovster Creek DATE:

October 7.

1994 COMPLT'D BY:Brenda DeMerchant TELEPHONE:

609-971-4642 REPORT MONTH: September, 1994 TYPE METHOD OF SHUTTING DOWN F: Forced DURATION THE REACTOR OR REDUCING CORRECTIVE ACTIONS /

No.

DATE S: Scheduled (Hours)

REASON (1)

POWER (2)

COMMENTS Plant manually 7

940909 S

501.2 c

1 shutdown to commence f

15th refueling outage.

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i Summary :

(1) REASON (2) METHOD a.

Equipment Failure (Explain) e.

Operator Training & Lic Exam.

1.

Manual b.

Maintenance or Test f.

Administrative 2.

Manual Scram c.

Refueling g.

Operational Error (Explain) 3.

Automatic Scram d.

Regulatory Restriction h.

Other (Explain) 4.

Other (Explain)

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