United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for April 6, 2004

Headquarters Daily Report

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REGION III

Davis-Besse Synchronized to Grid

Licensee/Facility:

FIRSTENERGY NUCLEAR OPERATING CO.
Davis-Besse
OAK HARBOR, Ohio
Dockets: 05000346
[1] B&W-L-LP
License No:
Notification:

MR Number: 3-2004-0027
Date: 04/06/2004

RIII- Via Teleconf. with Site

Discussion:

This information is current as of 10:00 a.m. (EDT) on April 6, 2004. The plant is currently in Mode 1 at 100% percent power. The plant performed a down-power evolution April 5 to establish plant conditions to support de-energizing the D2 non-essential 4.16 kV switchgear bus and replacement of a faulty feeder breaker to the D2 bus. The feeder breaker was identified as faulty when, during a routine breaker swap preventive maintenance evolution, the breaker failed to open using the remote control switch. Following the down-power evolution, the D2 bus was de-energized, and the breaker was removed from the enclosure. The D2 bus was re-energized via the normal alternate power source, and the plant returned to 100% power. The replacement breaker will be installed following completion of trouble-shooting efforts on the faulty breaker. Around-the-clock resident inspector coverage was utilized to monitor plant evolutions and maintenance activities.


The Davis-Besse Oversight Panel will continue to monitor plant activities utilizing enhanced inspection oversight coverage. For non-routine evolutions occurring after normal working hours, enhanced inspection oversight coverage will continue to be expanded to monitor these activities.


Regional Action: For Information Only

Accession Numbers:

Accession No Accession Date
ML040970333 04/06/2004

Contacts:

Name Office Abbrev Phone No E-Mail
THOMAS, C S R3 (419) 244-4494 CST1@nrc.gov
Page Last Reviewed/Updated Thursday, March 29, 2012