RedactedNarrative: Vessel 1 was traveling north bound on the ICW of Biscayne Bay. While the vessel was traveling through the feather beds off of black ledge, the occupants and operator hear a loud noise. The vessel turned sharply and threw victims into the water. 2 Victims were thrown backwards.
  The engine came off the transom bolts. Causing the vessel to turn sharply and throw the occupants off.
  
  Operator  was thrown overboard and sustained fractured ribs and a bruised hip.
  Occupant1 was thrown overboard.
  Occupant2 was thrown backward in the vessel.
  Occupant3 was thrown overboard. The vessel then struck victim in the lower neck and upper back. victim was transported by Miami Dade Fireboat 1 to Matheson Hammock boat ramp. She was taken by Miami Dade Squad 8 rescue truck to South Miami hospital.  She was treated and released.
  Occupant4 hit his head on the t-top support poll. He complained of headaches and was taken into the emergency room and released later that day. He possibly sustained a concussion.
  
   Precision Marine inspected the vessel and reported that the bolts on the vessel are standard thread bolts. The nuts used to secure the engine to the bolts were a yellow/brass in color according to the Owner. According to Precision Marine based on the color description the nuts were metric. ; 
  
  
NameOfBodyOfWater: BISCAYNE BAY
NearestCityTown: MIAMI                         