Abstract: Employee # 1 and two coworkers were disconnecting a tool joint. One coworker had removed the make-up tongs; the other coworker still had the break-out tongs on the drill pipe. The wire rope safety line to the break-out tongs became caught and the driller bumped the rotary table (engaged the rotary clutch) to pull the safety line loose. When the rotary table was bumped, the safety line gave and the break-out tongs swung toward Employee # 1 just as he moved into the arc of the tong's handle. The tongs struck Employee #1's midsection, throwing him against the laydown machine post, and crushing his chest and back. He was killed.