Fifties Frogs Magazine

Vol 7

Pg 7

The Search Ends For The USS Thresher SSN 593
 

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In Memory of QM1 Norman G. Lanouette, USN (SS), who went down with the Thresher SSN 593.

A great team-mate of mine. Don B.

The Search Ends For The USS Thresher SSN 593

September 7, 1963

The Bathyscaph Trieste

The bathyscaph Trieste had been purchased from the French who had pioneered the concept of deep-diving submersibles. The Trieste had already descended to 36,000 feet in the Marianas Trench two years before, so 8,000 feet would present no problem. The submersible arrived on the scene June 21, 1963. and over the next several weeks made a series of 10 dives to various selected sites on the ocean floor.

During the final series of dives the Trieste located and successfully filmed a large and definite piece of the Thresher on September 6. 1963. A part of her hull showing her draft marks and her number "593."  The search was officially ended. It was clear that an implosion had spread the submarine over a very large area of the ocean bottom and further expense and searching was unwarranted.

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Cont-

A formal Navy court of inquiry absolved any of the Thresher’s officers and men of any blame for the incident and recommended a number of changes in how pipes, fittings, and other potentially unreliable pieces of equipment, should be examined and tested in the future. The legacy of Thresher and her crew was simple: Do the best that is humanly possible to ensure that naval ships are accident-proof. Over the last three decades that legacy has resulted in improved safety in submarine
operations. The Thresher may have suffered an untimely death, but she will always be remembered.

Used by permission from Great Naval Disasters, by Kit and Carolyn Bonner,1998, MBI publishing Co. Osceola, WI 54020, 0-7603-09-594-3 p. 137-138.

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