WHILE CHECKING FOR AN AIR LEAK IN THE AIR FILTER CABINET, A FITTING/LINE BROKE. THE EE WAS POSITIONED IN FRONT OF THIS LINE. THE AIR BLAST PUSHED THE EE'S HEAD BACK AGAINST METAL STRUCTURE WIT HIN THE AIR BOX. THE RIGHT SIDE OF THE EE'S EAR WAS CUT REQUIRING STITCHES TO CLOSE THE WOUND. DUST WAS ALSO BLOWN INTO THE LEFT EYE, WHICH WAS FLUSHED OUT.