As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING NR 4 L/E SLAT INBD RIB IS CRACKED WHERE ACTUATOR MOUNTS TO RIB. REMOVED CRACKED RIB IN NO. 4 L/E SLAT WHERE ACTUATOR MOUNTS IAW FED EX B727 SRM, REV102, 51-30-2 AND COVE PANEL FOR ACCESS IAW B727 SRM 51-30-2. LOCATED AND DRILLED TWO RIBS IAW B727 SRM 51-30-5. INSTALLED RIBS AND COVE PANELS IAW B727 SRM 51-30-2.