In 1969, the USS Guitarro, a nuclear-powered attack submarine under construction, sank at Mare Island Naval Shipyard due to flooding in the forward sonar dome. A Navy investigation blamed shipyard ...
National Interest on MSN1mon
'We Left a Manhole Open': How a New Navy Nuclear Submarine Sank While DockedThe forward part of the submarine flooded after both the manhole cover and cofferdam protecting the sonar dome were removed, ...
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