Abstract: At approximately 1:50 p.m. on January 7, 1991, Employee #1 and a coworker were on top of a construction manlift, securing the manlift power cable against the manlift structure, which had been raised about 30 feet . Employee #1 put his arm between the steel bracings of the structure and was wrapping tape around the cable and the steel bracings when the manlift jumped upward, pinning Employee #1's right arm against the steel bracing. He sustained a severe fracture, for which he was hospitalized. The manlift can only be operated from controls on top of the cab. Employee #1 later stated that he had set the manlift's operating controls to the 'off' position before starting work.