RedactedNarrative: On Saturday August 06, 2016 at 20:30, 2 vessels were cruising in the south fork river channel of Lake Wylie near Harbor Towne Marina.  Weather conditions were clear and calm with a small chop on the water.  Visibility was fair due to low light conditions.  Both of the vessels were displaying the proper navigation lights.  
   
  Alcohol was found on board both vessels, the two operators and two passengers had all been drinking.  
      
  At 20:35, vessel #1 overtook vessel #2 and passed to the port side.  Vessel #1 completed the pass and then made a starboard right turn into the path of vessel #2 breaking the navigation rules and immediately slowed down because of a large wake created by a passing pontoon boat.  Vessel # 2 maintaining its course and speed had no time to react and impacted vessel # 1 on the starboard side of the stern at an approximate 140 degree angle.  Vessel #2 impacted vessel #1 with the bow of the boat.  The initial impact was approximately 5ft from the stern on the starboard side of Vessel #1.  Vessel #2's estimated speed at the time of impact was 15 miles per hour.  Vessel #1's speed was less than 5 miles per hour.  
  
  On impact Vessel #2 hit and slid down the starboard side of vessel #1 and the bow impacted Operator1 on his right shoulder.  The force of the blow pushed Operator1 down and to the left where his chest impacted the top rail of the windshield causing it to break.  After impact, vessel #2 remained on top of vessel #1 at the starboard side windshield.  Vessel #2 was dislodged by a passing motorist.  Both vessels were driven to the boat ramp of Harbor Towne Marina located less than 100 yards from the accident location where Gaston County EMS and Fire Department arrived on scene.  Operator1, the operator of Vessel #1 was taken by ambulance to Caromont Regional Medical Center in Gastonia, NC.  Operator1 was taken to the emergency room and treated for chest and shoulder injuries. 
  
  As the investigator of this accident, I have concluded that the primary cause of this accident was contributed to careless and reckless operation and impairment of alcohol of vessel #1's operator, Operator1. 
  Vessel #1's operator overtook and passed vessel #2 along the port side.  Operator1 then made a sharp right turn recklessly steering in front of vessel #2 breaking the navigation rules to avoid a wave from a passing vessel. Vessel #2 maintained course and speed hitting the starboard side stern of vessel #1 and struck the driver of vessel #1.  Operator1 suffered injuries from the force of the impact thrusting him forward and into the windshield.  This accident could have been avoided if the impairment of alcohol was not present and the navigation rules were not broken.
  
  The other vessel (passing pontoon boat) mentioned in this narrative was not involved in this incident.  This incident only involved the 2 vessels mentioned in this report.
  
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