Abstract: At approximately 11:50 a.m. on October 10, 1997, Employee #1, age 18, a laborer with the J.R. Daniels Company, was engaged in the erection of a pre-engineered metal building. The construction crew had rolled out trusses, spaced 3 ft apart, and then sheets of insulation over paper. Metal decking was then placed over the top to form the surface of the roof. Employee #1 was working with the insulation, trimming the ends at a joint, when he arose, took a step, and fell 27 ft to the ground. He was taken by ambulance to U.C. Davis Medical Center, where he was hospitalized with a fractured wrist and a crushed ankle. Employee #1 was not tied-off, had little or no training in fall protection, and had no experience in the work being done at the time of the accident.