The marine board consists of five members who will investigate all aspects of the casualty including, but not limited to, the pre-accident historical events relating to the accident, the regulatory compliance of Stretch Duck 07, crewmember duties and qualifications, weather conditions and reporting, and Coast Guard oversight.
Source: Investigations & Casualty Analysis
Link: 8/1/2018: Commandant convenes marine board of investigation into loss of Stretch Duck 07