As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK, CRACK INDICATION ON PREVIOUS REPAIR OF NR 3 SLAT OUTBOARD ACTUATOR SUPPORT RIB. REMOVED NR 3 SLAT ACCESS PANEL IAW SRM 51-30-2. REMOVED CRACKED RIB IAW SRM 51-30-2. LOCATED AND DRILLED NEW RIB IAW SRM 51-30-5. INSTALLED NEW RIB IAW SRM 51-30-2. REINSTALLED ACCESS PANELS AT NR 3 SLAT IAW SRM 51-30-2.