What was found
FLT NR 680 - MCO - THE NR 3 ENGINE FIRE WARNING LIGHT ILLUMINATED SHORTLY AFTER TAKEOFF FROM MLG. THE NR 3 ENGINE THROTTLE WAS REDUCED TO IDLE AND THE FIRE LIGHT EXTINGUISHED. THE AIRCRAFT WAS DIVERTED TO MCO, AS A PRECAUTIONARY MEASURE, WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NO EVIDENCE OF FIRE. THE NR 3 ENGINE 8TH STAGE SADDLE DUCT WAS FOUND RUPTURED. THE 8TH STAGE DUCT WAS REMOVED AND REPLACED. THE ENGINE WAS RUN AND OPERATION CHECKED GOOD. (M)