RedactedNarrative: A PWC WITH TWO OCCUPANTS WAS TRAVELLING SOUTHBOUND ON LAKE SHEEN WHEN THEY TOOK AN ABRUPT EASTBOUND TURN, CAUSING BOTH TO BE THROWN FROM THE SKI. THE OPERATOR WAS UNINJURED BUT THE PASSENGER SUFFERED SEVERE CHEST PAIN (LATER FOUND TO BE A COLLAPSED LUNG AND BROKEN RIBS). PASSENGER WAS TRANSPORTED TO THE HOSPITAL FOR TREATMENT.