RedactedNarrative: Vessel #1 was attempting to pull alongside a dock. Operator of vessel #1 was attempting to line up his boat with the dock by changing his throttle control from the forward position to the neutral position then to the reverse position. 
  
  After boat #1 was lined up, the operator of boat #1 changed the position of the throttle control from the reverse position to the neutral position then to the forward position. When the operator of boat #1 engaged the throttle control into the forward position the 115 HP Mercury revved up and accelerated forward causing boat #1 to collide into the dock and into boat #2 and boat #3 that were tied to the dock. 
  
  There was heavy damage to boat #l's pontoons at the front of the boat. The damage to boat #2 was to the port side rear deck and deck trim. The damage to boat #3 was to the starboard side rear deck and deck trim.