RedactedNarrative: ACCIDENT
  On July 18, 2020, at approximately 1231 hours, Vessel 1 began to drift away from the rental buoy area. Vessel 1 turned on the ignition. When the ignition was turned, people on the vessel heard a loud boom and saw fire coming from the motor boat area. The fire quickly spread to the rest of the boat. All the occupants of the boat were able to get off the vessel.
  
  Fire personal was called and the fire was put out.
  
  MEDICAL
  Injured was treated for minor burns to his legs. Injured had been sitting on the motor cover when the explosion happened. He was looked at by EMS personnel and released at the scene.
  
  INVESTIGATION
  Over the course of July 18 and 19, I looked over the wreckage. I was unable to find any evidence of equipment failure or malfunction. Most of the boat was charred past the point of recognition.
  
  CONCLUSION
  After going over the boat and statements, I concluded that improper ventilation of the fuel system was the cause of the fire. The boat was refueled and did not have adequate time/equipment ran to disperse the fumes, causing the fumes to ignite when the boat was started. It is highly likely the blower was not ran for four minutes after fueling, as recommended by the operators manual, causing gas fumes to ignite.