EE WAS OPERATING A HAUL TRUCK. HE WAS BACKING UPAND COULDN'T SEE. HE STUCK HIS ARM OUT OF THE SIDE OF THE CANOPY TO TURN AROUND AND LOOK BACK, WHEN HIS ARM GOT PINCHED BETWEEN THE ROCK RIB AND HIS TRUCK. HE WAS TRANSPORTED TO THE E.R. FOR EVALUATION AND TREATMENT. HE WAS DIAGNOSED WITH A HAIRLINE FRACTURE OF THE ARM.