EE was carrying rockdust through a door on the E Mains belt at 15 rm. The door was spring loaded and caused the door to strike his right shoulder. The EE cont. to work and complained of some pain. An MRI revealed degenerative conditions atrophy and a tear in the right rotator cuff. EE had previous rotator cuff surgery for the same shoulder. EE was taken off work as an occ illness.