AS EE WAS CUTTING SWITCH AND CONTROL CABLES FOR DOOR THAT WAS BEING TAKEN OUT OF SERVICE, THE SHIEVE FOR THE DOOR WAS HOOKED OVER ROD TRUSS. THE TRUSS CAME LOOSE FROM ANCHOR POINT, FELL ON THE SAFETY LATCH ROPE RELEASE THAT ALLOWED THE DOOR TO FALL. EE'S LEFT HAND WAS CAUGHT BETWEEN DOOR AND DOOR FRAME, DOOR FELL ON BOTH FEET AND INJURED RIGHT THUMB AS WELL.