RedactedNarrative: Operator of vessel 1 loaded 2 passengers from vessel 2 (anchored) as passengers onto vessel 1 and 2 passengers simultaneously picked up from vessel 2 and placed on the tube in personal floatation devices, which was in tow behind vessel 1 after safely clearing the area. 
  
  The Operator towed the tube and its passengers for several minutes and eventually returned to vessel 2 to drop off all passengers. When nearing vessel 2 operator encountered a large wave which caused mechanical failure to vessel 1 with a malfunction of the helm, throttle and shifter causing vessel 1 to suddenly accelerate until the operator regained control of the helm, throttle and shifter and reduced speed. Two injuries.
  
  Notes: case is open and being investigated.