RedactedNarrative: VESSEL CAUGHT FIRE AFTER ENGINE IGNITION AT DOCK, THEN DRIFTED AFLAME UNTIL EXTINGUISHED FY TAMPA FIRE AND RESCUE
  
  All three occupants reported that the vessel was at dock, at the time of the incident. All three reported that vessel operator OP1 vented the vessel for 2-3 seconds prior to ignition, OP1 stated that he heard the vent operate at the time of use.
  
  Witness stated that when the vessel was started he heard a low "whump" that he described as being similar to the sound of "somebody jumping off the dock onto the deck" And that the operator then opened a hatch or compartment and the fire then was visible. He stated that the fire was slow at first and the occupants had time to "retrieve little things like wallets and phones" before the vessel became engulfed and began to drift. 
  
  The operator OP1 stated he attempted to extinguish the fire with the onboard fire extinguisher, but was unsuccessful. 
  
  The vessel drifted approximately a quarter mile north of the boat ramp before coming to rest aground on the west bank of river after being extinguished. 
  
  Vessel owner recovered vessel hulk and returned it to boat ramp.