EE STATED HE LIFTED A TWO PIECE METAL PLATE GUARD COVER ON #693 DC SHUTTLE TO SEE HOW MUCH CABLE WAS LEFT IN CABLE REEL.WHILE LIFTING THE LEFT GUARD COVER TO UPRIGHT POSITION AND WHILE ATTEMPT ING TO LIFT THE OTHER GUARD COVER THE COVER ON LEFT SIDE FELL. EE GOT HIS LEFT HAND CAUGHT BETWEEN COVER DOOR AND SHUTTLE CAR RESULTING IN LACERATION THAT REQUIRED SUTURES.