Chapter Luncheon, October 30, 2019 at 11:30am

Presentation and Discussion on the USS THRESHER (SSN 593) Disaster and the Lawsuit against the Navy to Release the THRESHER Report Speaker: Captain Jim Bryant, USN (Ret.) Note: Networking 11:30-12pm, Lunch 12pm


Please join us on October 30, 2019 for apresentation and discussion on the USS THRESHER (SSN 593) Disaster and the Lawsuit against the Navy to Release the THRESHER Report by Captain Jim Bryant, USN (Ret.)

THRESHER was the first nuclear submarine to sink and remains the worst submarine disaster in terms of number of lives lost.  The most advanced submarine in the world sank April 10, 1963 during a routine deep dive after a shipyard overhaul, shocking the world. 

The presentation expands on Bryant’s article, published in the July 2018 edition of Proceedings magazine: “Declassify the THRESHER Data.”  During the presentation, we will discuss the new technologies that made THRESHER a significant threat to the rapidly expanding Soviet submarine force, and we will also discuss the inadequate preparation for increasing test depth from 700 to 1,300 feet. 

The timeline of the deep dive will be examined looking at the Naval Court of Inquiry (NCOI) conclusions that are inaccurate, including the idea that major flooding caused the sinking, the question of why the main ballast tank blow did not surface the boat, and the enigma of the underwater telephone communication from THRESHER reporting “experiencing minor difficulties.”

We will discuss why Admiral Rickover was blamed for the loss and how he successfully defended his nuclear propulsion program.  It is speculated that a control surface casualty was a significant factor in the loss—and not the “inadequate design of the nuclear controls for the power plant” nor Rickover’s strict procedures protecting the reactor.

We will discuss Bryant’s lawsuit against the Navy on releasing the still classified, 56-year old NCOI report on THRESHER.

Read the full bio of Captain Jim Bryant, USN (Ret.) HERE

Location: Dave and Buster's Mission Valley, 2931 Camino Del Rio N, San Diego, CA 92108


  • 11:30-12:00pm - Networking
  • 12:00pm - Lunch 

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Please note, we invite speakers from different backgrounds and with different messages for the benefit of our chapter members.  We aim to get engaging speakers to encourage luncheon attendance and participation.  The opinions or messages of the speakers are their own and don't reflect the opinions of the USNAAASD Chapter, the board or its members.  We do not endorse any speaker, their message or any products they may represent.

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