As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE IN HEAVY MAINTENANCE PERFORMING INSPECTIONS IT WAS NOTED THAT THE NR 3 SLAT HAS AN INTERNAL ATTACH FITTING CRACKED. THE SLAT ACTUATOR INBD AND OTBD RIBS WERE REMOVED AND REPLACED. NO OTHER DEFECTS WERE NOTED. AIRCRAFT WAS RETURNED TO SERVICE.