RedactedNarrative: On July 3, 2015, at approximately 1:30 p.m. operator was attempting to leave his boat slip via vessel (LA-7943-FM). Upon starting the starboard motor an explosion occurred ejecting Operator from the vessel and into the water. Operator was subsequently transferred via Acadia Air Med to Baton Rouge General Hospital and treated for Second Degree burns to his lower lateral extremities. After the flames onboard the vessel were extinguished agents secured the vessel back in the boat slip located at the above address and began to investigate the incident’s origin. Witnesses at the scene reported hearing what sounded like a boat motor cranking and shortly afterwards hearing a loud boom shaking their windows in their homes.
   
  Other witnesses reported seeing Operator push the vessel away from the lift and crank one motor before witnessing the actual explosion. However, all witness accounts did verify that Operator was the only occupant onboard the vessel at the time of the incident and suffered severe burns to the lower parts of his legs.
   
  Investigators have determined the primary factors which led to this incidents occurrence and Operator’s subsequent injuries to be as follows:
  1- Failure to vent the engine compartment off for a sufficient amount of time both after fueling the vessel and before starting the engines
  2- Ignition of fuel vapor trapped within the engine compartment causing an explosion and subsequently burning the vessel.
   