As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE RT ENGINE FIRE WARNING LOOP (A) LIGHT ILLUMINATED. SHORTLY, AFTER THE FIRE WARNING LOOP (B) ILLUMINATED WITH FULL ENGINE FIRE INDICATIONS. MAINTENANCE FOUND BROKEN COUPLING ON THE COWL ANTI-ICE DUCT, REMOVED AND REPLACED DUCT ASSEMBLY IAW MM 75-10-5. OPERATIONAL AND LEAK CHECK GOOD.