RedactedNarrative: On Thursday, September 1st 2016 at about 0645hrs, a single vessel accident with two people on board occurred on Lake Joanna in Lake County, FL.  The vessel involved (V-1), a 1995 14’ Coleman Jon boat with a 20hp Mercury tiller handle motor.  The passenger/victim was sitting on the bow of the vessel.  Operator made a sharp turn causing Occupant to fall/jump out of the vessel. Occupant was struck by the vessel as he resurfaced and sustained two lacerations on the right side of his head and a fractured skull near the lacerations. Occupant was air lifted to Central Florida Regional Medical Center in Sanford, FL. ;