RedactedNarrative: Operator 1 had just completed fueling up vessel 1 and was plowing as they were preparing to get vessel 1 up to speed on the plane. As operator 1 started to get vessel 1 to accelerate to get up on plane the motor started to bog down as if vessel 1 was flooding. 
  Operator 1 idled vessel 1 down and tried to accelerate vessel 1 again, as the operator did this vessel 1 backfired causing the motor engine compartment to explode. This caused passenger 5 to sustain injuries from the explosion. Vessel 1 exploded due to fuel leak around the seal of the fuel sending unit on the top of the fuel tank. There was no other injuries from the explosion and vessel 1 sustained damage to engine compartment.