PRODUCTION TECHS WERE REINSTALLING DOOR ON FM1 2ND COMPARTMENT WHEN THE LIFTING CHAIN BROKE. WHEN THE LIFTING CHAIN BROKE IT STRUCK AN EMPLOYEE IN THE LEFT HAND CAUSING LACERATION TO THE PINKY AND RING FINGER. THE EMPLOYEE WAS WEARING GLOVES AT THE TIME OF THE INCIDENT. THE EMPLOYEE WAS TAKEN TO THE HOSPITAL FOR MEDICAL CARE.