RedactedNarrative: At approximately 11:51 AM Central Time on May 29th, Operator1 had just completed filling his 41.5' Sea Ray cabin cruiser with over 100 gallons of fuel (gasoline-300 gal. total capacity) at Hu-B's Marina on Lake Barkley in Kuttawa, KY. According to Operator1 during interview, he had started the port engine without issue and then turned on the starboard engine igniting fuel vapors within the engine compartment. He and two dockhands described a loud "boom" followed by smoke coming from the port and starboard side vents. Only a few minutes later and after pushing off the fuel dock, fire became visible from the starboard vents. At this time Operator1 felt confident that he heard his Halon fire extinguisher system activate and consequently extinguish all fire on board. The vessel was then towed a short distance out from the marina to the break-wall and tied up waiting for first responders from KDFWR, Lyon County EM and Kuttawa Fire Dept. No injuries were sustained and there was no damage to any other property aside from the boat.   
  
  During interview, Operator1 claimed to have vented his hold removing fuel vapors. However, a witness statement from one of the dockhands indicated Operator1 either didn't vent the fuel vapors at all before ignition or didn't leave them on long enough. 
  
  