As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON INITIAL DESCENT NR 2 ENGINE FIRE WARNING CAME ON. COMPANY PROCEDURES FOLLOWED AND ENGINE WAS SECURED. FOUND WIRE CHAFFING AT RT FWD MAIN WIRE BUNDLE AT 3 O'CLOCK POSITION. WHEN MOVING BUNDLE, FIRE WARNING WOULD GO ON AND OFF DEPENDING ON THE POSITION OF BUNDLE. REPLACED WIRE. FIRE WARNING SYSTEM OPS CHECK NORMAL IAW MM 26.