RedactedNarrative: Vessel 1, identified by Florida registration (FL5518PB), was traveling South in the ICW directly West of Cap's Restaurant at approximately 5:15 PM. Operator 1 was operating the 20 horsepower tiller motor of Vessel 1 by using a pvc tiller steer extension. As Operator passed the docks of Cap's Restaurant traveling approximately 10 mph, the pvc tiller steer extension broke off. As the pvc tiller steer extension broke off,  Operator inadvertently increased throttle speed to 20 mph. 
  
  This abrupt increase in throttle speed caused the bow of Vessel 1 to rise quickly. Operator explained after the bow of Vessel 1 quickly rose, Vessel 1 turned starboard and flipped. 
  
  Operator was ejected out of Vessel 1 from the starboard side. A good samaritan vessel quickly picked up Operator. Vessel 1 completely sunk and was not visible. I confirmed this to be true.  The good samaritan vessel located Vessel 1 with a side scan sonar in approximately 34 feet of water. At the time of the boating accident, it was approximately 1 hour after low tide. Operator advised he would attempt to recover Vessel 1 at a later time. Operator was evaluated on scene by EMS. No injuries were sustained.
  