ML033210356

October 2003 Monthly Operating Report for Davis-Besse

ML033210356
Person / Time
Site:	Davis Besse
Issue date:	11/13/2003
From:	Bezilla M FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
CCN: P-6-03-10
Download: ML033210356 (4)

Text

FirstEnergy Oavis-Besse Nuclear Power Station 5501 North State Route 2 Oak Harbor, Ohio 43449-9760 November 13, 2003 CCN: P-6-03-10 Docket No. 50-346 License No. NPF-3 Document Control Desk U. S. Nuclear Regulatory Commission One White Flint North 11555 Rockville Pike Rockville, MD 20852-2738 Ladies and Gentlemen:

Monthly Operating Report, October 2003 Davis-Besse Nuclear Power Station Unit I Enclosed is a copy of the Monthly Operating Report for the Davis-Besse Nuclear Power Station for the month of October 2003.

Please direct questions to Brian D. Boles, Manager - Plant Engineering at (419) 321-7302.

Very truly yours,

-a4d9 14 V///7 / _/

Mark B. Bezilla /

Plant Manager Davis-Besse Nuclear Power Station MDZ/Ijk Enclosures cc: DB-1 NRC/NRR Senior Project Manager DB- 1 Senior Resident Inspector NRC Region III Administrator 5--69A

Docket Number 50-346 License Number NPF-3 P-6-03-10 Page 1 of I COMMITMENT LIST The following list identifies those actions committed to by Davis-Besse Nuclear Power Station in this document. Any other actions discussed in the submittal represent intended or planned actions by Davis-Besse. They are described only as information and are not regulatory commitments. Please notify the Manager - Regulatory Affairs (419-321-8450) at Davis-Besse of any questions regarding this document or any associated regulatory commitments.

Commitments Due Date None

OPERATING DATA REPORT DOCKET NO. 50-346 UNIT NAME Davis-Besse Unit 1 DATE 11(03/03 COMPLETED BY M.D. Zawacki TELEPHONE 419-321-7692 REPORTING PERIOD October, 2003 YEAR TO MONTH DATE CUMULATIVE 1 Design Electrical Rating (Mwe-Net). 906 The nominal net electrical output of the unit specified by the utility and used for the purpose of plant design.

2 Maximum Dependable Capacity (Mwe-Net) 882 The gross electrical ouput as measured at the output terminals of the turbine-generator during the most restrictive seasonal conditions minus the normal station service loads.

3 Number of Hours the Reactor Was Critical. 0.0 0.0 147,634.3 The total number of hours during the gross hours of the reporting period that the reactor was critical.

4 Number of Hours the Generator Was On Line. 0.0 0.0 145,037.1 (Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers dosed to the station bus.

The sum of the hours the gerator was on line plus the total outage hours should equal the gross hours In the reporting period.

5 Unit Reserve Shutdown Hours 0.0 0.0 5,532.0 The total number of hours during the gross hours of the reporting period that the unit was removed from service for economic or similar reasons but was available for operation 6 Net Electrical Energy (MWH). 0 0.0 119,131,798 The gross electrical output of the unit measured at the output terminals of the turbine-generator minus the normal station service loads during the gross hour of the reporting period, expressed In mega-watt hours. Negative quantities should not be used.

UNIT SHUTDOWNS DOCKET NO. 50-346 UNIT NAME Davis-Besse #1 DATE 11/03/03 COMPLETED BY M.D. Zawacki REPORTING PERIOD: October. 2003 TELEPHONE (419) 321-7692 NO. DATE TYPE DURATION REASON (1) METHOD OF CAUSE/CORRECTIVE ACTIONS F: FORCED (HOURS) SHUTTING

SCHEDULED DOWN (2) COMMENTS 1 2116/02 S: SCHEDULED 745.0 C,H 1,4 13 RFO work on the reactor vessel pressure retaining head revealed degradation and corrosion. As a result, the reactor vessel pressure retaining head was replaced and an effort to remove dry boric acid deposits from containment was initiated. The plant remained shutdown due to various modifications which included (but not limited to): the Decay Heat Valve Pit, the Emergency Sump, and the Containment Air Coolers. Currently, along with additional work required prior to restart, the DBNPS is Involved in the resolution of Issues with the High Pressure Injection Pumps.

SUMMARY

The reactor was shutdown on February 16, 2002 to begin the 13th refueling outage. Corrosion and degradation was found on the head and it has since been replaced. The reactor remained shutdown through the month of October (due to continuing work), however, the plant entered Mode 3 on September 15, 2003, to conduct a Reactor Coolant System inspection. On October 4, 2003 the plant re-entered Mode 5.

• (1) Reason: (2) Method:

A-Equipment Failure (Explain) 1-Manual B-Maintenance or Test 2-Manual Trip/Scram C-Refueling 3-Automatic Trip/Scram D-Regulatory Restriction 4-Continuation E-Operator Training & License Exam 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)