United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for February 2, 2006

Headquarters Daily Report

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REGION III

DUANE ARNOLD ENERGY CENTER (DAEC) DECLARATION OF UNUSUAL EVENT

Licensee/Facility:

NUCLEAR MANAGEMENT CO., LLC
Duane Arnold
PALO, Iowa
Dockets: 05000331
[1] GE-4
License No:
Notification:

MR Number: 3-2006-0002
Date: 02/01/2006

tel.call from Res Ins. & Lic.

Discussion:

On February 1, 2006, at 1937 CST, DAEC declared an Unusual Event due to a loss of normal telephone communications system (all but one microwave circuit) and the verified inability to use this circuit to contact State and county authorities. Subsequently, Linn County and Benton County were able to be notified of the Unusual Event by microwave circuit, and Iowa Homeland Security and Emergency Management was notified by cell phone. Temporary communications were established via cell phones. The loss of communications was due to a failed relay in the Cedar Rapids QWEST Communications equipment.

Normal communications and microwave service were restored at 2030 CST. The licensee satisfactorily completed testing of their Offsite Agencies Notification Weekly surveillance test at 0101 CST February 2, 2006, and terminated the Unusual Event at 0107 CST.

Accession Numbers:

Accession No Accession Date
ML060330626 02/01/2006

Contacts:

Name Office Abbrev Phone No E-Mail
BROWN, CAREY E R3 (630) 829-9605 CEB1@nrc.gov
Page Last Reviewed/Updated Thursday, March 29, 2012