RedactedNarrative: Vessel 1, AL-3493-ML, was traveling on plane (near full throttle- 50-55mph) with two occupants on board when it struck a floating log. The engine was knocked free from its mount, and rebounded back over the operator and passenger seating area with the propeller still turning. The engine/propeller struck the passenger in the head and the operator in the left leg causing lacerations and other injuries to both, as well as additional damage to the vessel. Subjects were transported by myself (located nearby), Marine Police, to Mallard Creek Recreation Area Boat Ramp, where they were picked up and transported to Decatur General Hospital by Lawrence County EMS. Vessel was towed by "Tow Boat US" to Ingalls Harbor and turned over to a family friend by permission of the owner/operator.