ML021690199

May 2002 Monthly Operating Report for Davis-Besse Nuclear Power Station Unit 1

ML021690199
Person / Time
Site:	Davis Besse
Issue date:	06/12/2002
From:	Fast J FirstEnergy Corp
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
P-6-02-05
Download: ML021690199 (4)

Text

FirstEnery Davis-Besse NuclearPower Station 5501 North State Route 2 Oak Harbor,Ohio 43449-9760 June 12, 2002 CCN: P-6-02-05 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, May 2002 Davis-Besse Nuclear Power Station Unit 1 Enclosed is a copy of the Monthly Operating Report for the Davis-Besse Nuclear Power Station for the month of May 2002.

If you have any questions, please contact Aaron Quaderer at (419) 321-7384.

Very truly yours, J. Randel Fast Plant Manager Davis-Besse Nuclear Power Station ASQ/ljk Enclosure cc: D. V. Pickett NRC Project Manager J. E. Dyer NRC Region III Administrator C. S. Thomas NRC Senior Resident Inspector J'ý'q4

Docket Number 50-346 License Number NPF-3 P-6-02-05 Page 1 of 1 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 (419-321-7148) at Davis-Besse of any questions regarding this document or any associated regulatory commitments.

Commitments Due Date None

OPERATING DATA REPORT DOCKET NO. 50-0346 UNIT NAME Davis-Besse Unit 1 DATE 06/03/02 COMPLETED BY A.S. Quaderer TELEPHONE 419-321-7384 REPORTING PERIOD May, 2002 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 output 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 1,107.6 147,634.3 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 1,082.2 145,037.1 (Also called Service Hours). The total number of hours during the gross hours of the reporting period that the unit operated with breakers closed to the station bus.

The sum of the hours the generator 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). 0 927,296 119,115,911 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 hours 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 06/03/02 COMPLETED BY A. S. Quaderer REPORTING PERIOD: May, 2002 TELEPHONE (419) 321-7384 NO. DATE TYPE DURATION REASON (1) METHOD OF CAUSE/CORRECTIVE ACTIONS F: FORCED (HOURS) SHUTTING

&:SCHEDULED DOWN (2) COMMENTS 2 2/16/02 S: SCHEDULED 744.0 C, H 1 13th refueling outage, discovery of boric acid corrosion (cont.) on reactor vessel head

SUMMARY

The reactor was shutdown on February 16, 2002 to begin the 13th refueling outage. The plant remained shutdown throughout the month of May due to the discovery of boric acid corrosion on the reactor vessel head.

(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 Exami 5-Other (Explain)

F-Administrative G-Operational Error (Explain)

H-Other (Explain)