entire team wanted to express their condolences also. as a senior investigator, i have witnessed the personal impact associated with these types of events. and my primary goal is to prevent a similar occurrence by making the necessary recommendations to enhance the safety of the maritime domain world wide. upon receiving notification that the submersible titan had suffered a catastrophic failure with the loss of the five lives on board, the coast guard declared a major marine casualty and convened an investigation referred to as an m.b.i. on june 23rd. i am serving as a chair for the investigation. an m.b.i. is the highest level of investigation the coast guard conducts. it enables the u.s. to fully leverage investigative resources coast guard-wide and capitalize on an extensive network of cooperative relationships with