As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-16 CHECK .1250 INCH CRACK WAS FOUND ON NR 4 SLAT ACTUATOR CLOSE OUT DOOR, WBL 279.25. MAINTENANCE REMOVED CRACKED NR 4 SLAT ACTUATOR CLOSE OUT DOOR; FABRICATED A NEW REPLACEMENT DOOR; INSTALLED REPAIR PART IAW BMM 20--050-011-2, FIG. 203.