Abstract: At approximately 4:16 p.m. on May 17, 2006, Employee #1 and other coworkers were installing additional cross bracing onto an existing communication tower so the tower could handle heavier antenna loads. Employee #1 was at the 55-ft level removing an existing bolt to install the new cross brace when he leaned back in his positioning harness. Apparently, Employee #1 had connected to a cross brace with a missing bolt which enabled his hook to slide off the brace. Employee #1 fell and struck the edge of a roof, and then to the ground. He was hospitalized for treatment of fractured legs, ankles, lumbar spine, and wrist.