As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EZE - FLT 900 - DURING FLIGHT, FIRE DET 3 FAIL ALERT ILLUMINATED. ENGINE FIRE AURAL WARNING SOUNDED FOR THREE SECONDS. NR 3 ENGINE SHUTDOWN AND AGENT DISCHARGED. REPLACED LOWER LOOP-B DETECTOR FDCU NR 3 AND FIRE EXTINGUISHER CONTAINER. SYSTEM GROUND CHECK NORMAL OPERATION. (M)