THE EE WAS INA SLIGHTLY BENT-OVER POSITION, REACHED IN AND PULLED UP ON THE BOOM SWING LEVER TO SWING BOOM OUTWARDS TOWARD THE RIB. IN DOING SO, A SHORT DRILL STEEL FELL FROM THE TRAY, WENT IN UNDER THE LEVER, PREVENTING THE LEVER TO SELF CENTER, THE BOOM KEPT SWINGING AND CAUGHT THE EE BETWEEN THE CANOPY AND COAL RIB, RESULTING IN CONTUSION, SPRAIN/STRAIN TO LEFT RIB CAGE AND MID