RedactedNarrative: The watercraft was pulling a 3-person tube with a 59-foot rope. The operator was making S-turns with the boat causing the tube to cross over the wake back and forth. 
  
  The operator estimated they were 300 yards directly west from 6701 Minnewashta Parkway, Chanhassen, MN. There was a 14-year-old on board acting as a spotter, and three 14-year-olds on the tube. 
  
  The operator indicated he was making a turn to his port side, which caused the tube to cross from the port-side wake towards the starboard side. The spotter and occupants of the tube stated that when the tube hit the boat's wake, the starboard side of the tube dug into the water, causing the port side to lift. 
  
  The victim was seated on the starboard side of the tube. His arm entered the water, causing it to be pulled back, injuring the shoulder, and the victim was ejected from the tube. The victim was transported by ambulance to the medical center. All were wearing life jackets and alcohol was not a factor.