RedactedNarrative: Vessel #1 was in the Coosa County section of Lake Martin in an area know as the "Narrows". The operator and sole occupant of the vessel left the operator station while the boat was still moving and in forward gear. As the operator went to the bow of the vessel to put a pedestal seat down the boat made a sharp turn to the right. This caused the operator to be thrown out of the boat on the port side. As the operator surfaced the vessel began to circle him. It circled him approximately four times before running over him and forcing him back under water. While under water the prop managed to catch his shirt and pulled him in. The operators right arm and part of his chest was then struck by the prop. The operator managed to get out of his shirt after the motor shut off and back into the boat. He then used a fire extinguisher to signal a nearby boat for help. The operator and boat were towed to a dock where emergency services were notified.