What was found
FLT 4927 - MIA-PID - PILOT REPORTED NR 3 ENGINE OIL PRESSURE LIGHT ILLUMINATED AND OIL PRESSURE DROPPED. ON FINAL IN TO PID, OIL PRESSURE CONTINUED TO DROP. PILOT SHUT DOWN NR 3 ENGINE. THE AIRCRAFT WAS INSPECTED AND FOUND TO BE SAFE FOR 3 ENGINE FERRY TO FLL MAINTENANCE BASE. UPON ARRIVAL, AT FLL, NR 3 ENGINE OIL CHECK DIP STICK INDICATED NO OIL. ENGINE WAS REMOVED AND REPLACED. OPERATIONAL CHECK GOOD AND AIRCRAFT RETURNED TO SERVICE. DEFECTIVE ENGINE RETURNED TO OVERHAUL FACILITY FOR REPAIR.