As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A AFTER LANDING RECEIVED LVL 3 ENG 3 FIRE DET ALERT. FOLLOWED PROCEDURE W/FIRE AGENT DISCHARGED. REMOVED AND REPLACED NR 3 ENG UPPER FIRE DETECTOR LOOP ASSY PER MM 26-11-03-4. REMOVED AND REPLACED FDCU PER MM 26-11-02-4. P/N ON/OFF 8038-02-03. S/N OFF 297 FOR FDCU.