Morning Report for November 7, 2003

Headquarters Daily Report

• REGION III

REGION III

DUANE ARNOLD ENERGY CENTER MANUAL SHUTDOWN DUE TO HIGH REACTOR COOLANT CONDUCTIVITY

Licensee/Facility: NUCLEAR MANAGEMENT CO., LLC Duane Arnold HUDSON, Wisconsin Dockets: 05000331 [1] GE-4 License No:

Notification: MR Number: 3-2003-0034 Date: 11/06/2003 Tel. Call with Res. Inspctrs

Discussion:

At 1:34 a.m. (CST) on November 7, 2003, the licensee inserted a manual reactor shutdown while at 45 percent power due to high reactor coolant conductivity. All systems responded as anticipated with the exception of the turbine generator which did not trip on reverse power as expected. Control room operators manually tripped the turbine generator. The turbine generator did not motor as a result of this event.

The licensee is investigating the cause of the high conductivity.

The residents inspectors are monitoring the activities.

Region III (Lisle, IL) was informed of this shutdown by the Senior Resident Inspector at 2:35a.m. (CST) on November 7, 2003.


Regional Action: Information Only

Accession Numbers:

Accession No	Accession Date
ML033110589	11/07/2003

Contacts:

Name	Office Abbrev	Phone No	E-Mail
BURGESS, B L	R3	(630) 829-9629	BLB@nrc.gov