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E-M:/ NRC Begins Special Inspection @ Cook
- Subject: E-M:/ NRC Begins Special Inspection @ Cook
- From: Kay Cumbow <firstname.lastname@example.org>
- Date: Thu, 25 Sep 2008 12:19:55 -0400
- Delivered-to: email@example.com
- Delivered-to: firstname.lastname@example.org
- List-name: Enviro-Mich
- Reply-to: Kay Cumbow <email@example.com>
U.S. NUCLEAR REGULATORY COMMISSION
Office of Public Affairs, Region III
2443 Warrenville Road, Lisle, IL 60532
No. III-08-039 September 24, 2008
CONTACT: Viktoria Mitlyng (630) 829-9662
Prema Chandrathil (630) 829-9663 E-mail:
The Nuclear Regulatory Commission is conducting a special inspection at
the DC Cook Nuclear Power Station to review circumstances around a
turbine generator fire and degradation of the fire suppression system.
The two-unit plant is operated by American Electric Power and is located
in Stevensville, Mich.
On Sept. 20, 2008, a malfunction in the Unit 1 turbine generator resulted
in a fire and caused the operators to manually shut down the reactor. The
turbine generator transforms steam into electricity. All nuclear safety
systems functioned as expected and were not affected by the fire which
occurred in a building separate from the nuclear reactor.
The utility declared an unusual event, the lowest of NRC?s four emergency
classifications, when the fire could not be extinguished within 15
minutes. The fire was extinguished 25 minutes after it started. There
were no injuries and no hazard to the public.
After the fire was extinguished, operators received a signal indicating a
problem with the fire suppression system. The cause of the problem was a
rupture in the pipe which is a source of water for the plant?s fire
protection systems. Alternate sources of water were available for fire
suppression in case they were needed.
The four-person special inspection team will review the causes for the
turbine generator malfunction, the fire, and the problems with the fire
suppression system. The special inspection team will also review the
utility?s corrective actions.
?Plant operators took quick action to safely shut down the reactor and
activate the fire suppression system,? said Regional Administrator James
Caldwell. ?However, we seek to gain a more thorough understanding of what
caused the turbine problems and the fire, as well as the causes of the
degradation of the plant?s fire suppression system.?
The duration of a special inspection cannot be determined in advance. The
average duration of a special inspection is seven days. The inspection
report will be issued about 45 days after the inspection is complete. It
will be available through the NRC RIII Office of Public Affairs and at
the NRC web site:
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http://www.nrc.gov/public-involve/listserver.html. The NRC Home Page
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