Abstract: At approximately 8:20 a.m. on September 28, 2006, Employee #1 was working as part of a decommissioning crew that disassembled scaffold rigging and cleaned up a site once the scaffold work had been completed. He was helping coworkers remove the suspension scaffold outrigger beam from its 6 ft tall support frame. Employee #1 was stepping up onto the parapet wall at the edge of the roof when he attempted to grab onto a 5 ft long I-beam to balance himself. The beam came off its support frame (scaffold bench) as Employee held it, and he and the beam fell 11 stories to the ground. Employee #1 was killed. Subsequent investigation found that the clamp that secured the I-beam had been removed when the outrigger beam was being disassembled. Employee #1 had not been sufficiently trained in fall protection and scaffold safety. At the time of the accident he was wearing a fall protection harness but he was not tied off.