Design Flaw At San Onofre Power Plant Revealed
By Michael Blood / HuffPost / June 19, 2012
AN JUAN CAPISTRANO, Calif. — A botched computer analysis resulted in design flaws that are largely to blame for unprecedented wear in steam tubes at the San Onofre nuclear power plant, but it isn’t clear how the problems can be fixed, federal regulators said.
The preliminary findings by a team of Nuclear Regulatory Commission investigators were disclosed Monday night nearly five months after the seaside plant was shut down following a break in a tube that carries radioactive water. There is no date to restart either of its two reactors.
The problems center on excessive tube wear in steam generators that were installed at San Onofre during a $670 million overhaul in 2009 and 2010. Tests found some tubes were so badly corroded that they could fail and possibly release radiation, a stunning finding inside the virtually new equipment.






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