BASED ON INFORMATION TO DATE:  
P1 was traveling upstream in Old Hickory Lake in his Ranger bass boat on 05/20/2009 at 08:30 a.m.  He was traveling at roughly 55 mph.  The water was calm and smooth.  As he was traveling he hit a submerged object.  P1 says that he never saw the object.  As he hit, P1 was ejected from the boat.  He was wearing his life jacket and had his kill switch lanyard clipped to it.  The loop that the lanyard was clipped to on the life jacket broke as he was ejected.  Thus the kill switch was never activated on the boat.  The boat turned during the collison and headed toward the Gallatin Steam Plant where the barges tie up at.  The boat hit the bank and ramped into the woods.  The boat was completely out of the water. P1 floated down stream to Bull Creek, where he was able to get out of the water.
GALLATIN                      