Skier fell, operator reported that the skier had a problem getting her ski on after she pulled up and assisted her with her ski the skier was located to the starboard stern side of the boat.  Operator pushed the skier away from the boat and she started the engine and heard a noise and shut the engine off.  The skier was struck by the propeller. The operator shut the engine off and called 911 and provided medical care for the skier.
Three Lakes