As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 1018 - MIA-STX - DURING FLIGHT NR 3 ENGINE FIRE INDICATION CAME ON, SHUTDOWN NR 3 ENGINE AND LIGHT WENT OUT, DIVERTED TO SJU AIRCRAFT LANDED SAFELY WITHOUT INCIDENT. FOUND FAULTY FIRE WARNING LOOP, REPLACED LOOP SYSTEM OPS CHECKED GOOD. (M)