RedactedNarrative: Vessel #1 was approaching the North Marina slip to dock when Victim #1 left Vessel #1 from the bow to catch Vessel #1. Victim #1 slipped off the dock into the water and began to swim behind Vessel #1 to board from the stern ladder. When Operator #1 with limited vessel experience was approaching the slip Operator #1 placed Vessel #1 in reverse and struck Victim #1's left foot with propeller. Victim #1 was transported to the hospital where Victim #1's left leg was amputated at the knee.