RedactedNarrative: On September 4, 2016 at approximately 1159 hours, a recreational vessel had an electrical problem with the power trim on the engine shorting out and causing the vessel to catch on fire beginning underneath the engine cowling.  A good samaritan picked up the two passengers, we put out the fire with our vessels and sea tow brought the vessel into the dock. 
  
  On September 4, 2016, at approximately 1159 hours Officers were on water patrol at the head of St. Joe Bay when we received a call from dispatch concerning a boat fire approximately 1 mile from St. Joseph Point at the tip of the peninsula.  Officer was on water patrol as well and responded from Eagle Harbor.  
  
  We arrived on scene to find a 19' Kenner on fire that was anchored with no persons on board or around the vessel.  Sea Tow was on scene and had the owner on board their vessel.  We sprayed the vessel with our engines and extinguished the fire.  We then pulled up the anchor and allowed Sea Tow to bring the vessel back to the city ramp in Port St. Joe.  
  I interviewed subjects about their boating activity for the day.  
  
  Subject1 advised they were going off shore today to fish and he stopped the vessel to check the weather on his cell phone. While the vessel was at idle and just drifting he advised the engine just started trimming up by itself.  It trimmed all the way up to where the cowling was hitting his ice chest in the back of the boat.  
  
  He cut the power switch off to stop the engine from further trimming.  He heard the engine alarm go off and then began seeing smoke coming from the cowling area.  A good samaritan vessel came along and told them to get off the boat onto their vessel.  Subject1 anchored his vessel and he and his wife got onto the good samaritan vessel and called Sea Tow.  The good samaritan was taking them back into the City Marina when they met up with the Sea Tow vessel. Subject1 got into the Sea Tow boat and occupant went into the marina.  No one was injured however the vessel is a total loss.