WHEN INSTALLING BOOM HOIST CABLE ON MAIN DOECK STIFFLEG, EE HAD TO STAND ON TOP OF HOIST DRUM AREA TO SHIFT WRAPPED CABLE INTO PLACE. WITH THE USE OF A 4' BAR HE PUSHED ON THE BAR TO MOVE CABL E. WHEN THE CABLE MOVED INTO PLACE IT JUMPED AND THE BAR SLIPPED AND HE FELT A SNAP IN RIGHT SHOULDER.