RedactedNarrative: On 5/27/16 V1 was traveling north-west from the Wagon Wheel boat ramp located on the south side of Lake Tetonkaha (also referred to as West Oakwood Lake). V1 was traveling at speeds of twenty five to thirty miles per hour.  O1 was seated at the helm in the stern of V1.  P1 was seated at the bow of V1 on a swivel type foam seat attached to a pedestal.  P1 was facing towards the Stern of V1 in the seated position.  P1 was seated directly in front of O1 while V1 was under-way.   O1 field of view was slightly obstructed by P1.
   
  V1 traveled approximately ½ of a mile before approaching the far east point of Lake Tetonkaha.   The east point separates Lake Tetonkaha from Round Lake.  V1 made physical contact with a large group of submerged rocks with its skeg and propeller on the south side of the point.  As V1 made contact with the submerged rocks P1 rolled over the port side making contact with V1’s trolling motor.  The trolling motor sustained damage to its rear mounting piece.  The seat P1 was located on became detached from its pedestal and was recovered on the port side of V1. 
   
  P1 entered the water head-first.  The depth of the water is estimated to be approximately three feet.  P1 was then forced under V1’s hull resulting in P1 making contact with the rotating propeller.  Before V1 came to a complete stop its Yamaha style motor was still running and therefore its propeller was still in rotation.  P1 sustained major trauma to his right arm as he made contact with the propeller.  P1 right arm suffered severe lacerations in addition to bone fracture/breakage. P1 was conscious throughout these series of events. 
   
  P1 was able to return to the surface where O1 assisted him.  A couple witnesses helped lift P1 into their watercraft.  O1 attached a tourniquet to P1 right arm.
   
  P1 was transported to the lake access where emergency personnel treated the injuries. 
  