Abstract: A church had hired a recreational services company to set up a fair with some amusement rides. A member of the public, a 16-year-old girl, was riding in a swing ride called a "Psycho Swing." The church had provided two volunteers to operate the swing. The swing was one-person, manually operated rigid swing, which can perform 360-degree revolutions. It was equipped with a braking device and had a strap on the left side. The rider, wearing a harness and holding onto the two vertical supports, stands on a platform that revolves around an axle. One of the volunteers hooked the swing's snaphooks to the harness on the girl and clamped her feet to the platform. The girl did a loop, went forward and backward, then slipped off, flipping and landing chest first, face down. She was still wearing the harness when she landed. She was hospitalized for her injuries. (No employees were injured in the accident.)