Abstract: At approximately 10:30 a.m. on October 3, 1989, Employee #1 and Employee #2 were reviewing a set of blueprints lying on the deck of the FMC Link Belt HTC-50, hydraulic truck mounted crane. They were located within the swing radius of the rear of the rotating super-structure. The crane operator and two ironworkers/signalers had just completed the hoisting/lifting operation of a load of bar. As the crane swung back to the left to lower the load to the unloading position directly over the rear of the crane, the counterweight of the rotating superstructure struck Employee #1 in the chest killing him.