As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
GRU - LEFT NUMBER FOUR DOOR WAS OPENED WITH ESCAPE SLIDE IN ARMED POSITION. SLIDE DROPPED DOWN ON THE UPPER STEP OF THE TRUCK STAIRS. PLACARDED LEFT NUMBER FOUR DOOR AND REPLACED LEFT NUMBER FOUR ESCAPE SLIDE AT MIA. SYSTEM GROUND CHECKED NORMAL OPERATION.