ML040970333

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Synchronized to Grid
ML040970333
Person / Time
Site: Davis Besse Cleveland Electric icon.png
Issue date: 04/06/2004
From: Thomas C
NRC/RGN-III
To:
References
MR 3-2004-0027
Download: ML040970333 (1)


Text

PRIORITY ATTENTION REQUIRED MORNING REPORT - REGION III Morning Report Date: APR 06, 2004 Licensee/Facility: Notification:

FIRSTENERGY NUCLEAR OPERATING CO. MR Number: 3-2004-0027 Davis-besse Date: 04/06/2004 Oak Harbor, Ohio RIII- Via Teleconf. with Site Dockets: 050-00346

[1] B&W-L-LP

Subject:

Davis-Besse Synchronized to Grid 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

Contact:

Org: Phone No: Email:

THOMAS, C S R3 (419) 244-4494 CST1@nrc.gov