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[ISN] Security computer at San Onofre mysteriously shuts down


By Jason Felch
Los Angeles Times
July 16, 2011

A security computer at the San Onofre nuclear generating plant near San Clemente mysteriously shut down early Saturday morning, prompting the plant manager to issue an "unusual event" report.

The computer, which monitors gates and doors as one part of the plant's overlapping security systems, was restarted 45 minutes later without incident, and there were no threats to the plant's security, officials said.

"This was a very minor situation," said Pete Dietrich, chief nuclear officer for Southern California Edison, which operates the San Onofre plant. "At first blush, it involves a potential software glitch."

The "unusual event" declaration is the lowest of four levels of reportable emergencies, said Gil Alexander, a spokesman for SoCal Edison.


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