Abstract: On July 24, 2010, Employee #1, of DMS Window Cleaning and Metal Care Services Incorporated, was cleaning the windows on a four-story building by standing under each floor's window on an approximately 24 in. wide concrete ledge. Employee #1 stated he had set up all his fall protection down lines to structural beam projections along the edge of the roof and ran his boatswain's chair rigging through a roof drain and over a short parapet wall. For some reason, he fell 45 ft to the asphalt surface. He was hospitalized for treatment of a broken right ankle, broken left ribs, left wrist, left elbow, pelvis, L-3 vertabrae, and a punctured left lung.