Abstract: Employee #1 was working from a Skyhook Aerial Crane with a man-basket attached to the end of the boom. Employee #1 was approximately 80 ft in the air cutting brackets that held a sign. Another crane was used to lift the sign once the sign was cut away from its support. The large sign was actually two signs bolted together and held in place by six brackets. Four brackets held the lower sign and two brackets held the upper sign. Employee #1 was going to cut the four lower brackets with an oxy-acetylene torch and then reposition his aerial lift on top to cut the final two brackets. This way Employee #1 would be above the sign when making his last cuts. When the fourth bracket was cut on the lower sign, it became detached from the upper sign and fell striking the aerial lift. Employee #1 was not wearing a harness and was bounced out of the basket and fell 80 ft to the ground. Employee #1 died from injuries sustained in the fall.