San Onofre Cascading Steam Generator Failures Created by Edison

San Onofre Cascading Steam Generator Failures Created by Edison

Imprudent Design and Fabrication Decisions Caused Leaks in 2012. Cramming 377 more tubes into each replacement generator than were in the original generators held affected reliability and safety. 

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Steam Generator Failures at San Onofre

Steam Generator Failures at San Onofre

The Need for a Thorough Root Cause Analysis Requires No Early Restart. Fairewinds recommends that Units 2 and 3 remain shut down until a thorough Root Cause Analysis determines the cause of rapid tube failures are understood and repaired, reliability is assured, and radioactive releases are prevented.

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