As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED FIRE WARNING LIGHT CAME ON IN-FLIGHT. THROTTLE WAS REDUCED AND LIGHT WENT OUT. TROUBLESHOT SYSTEM AND FOUND BROKEN PERI-SEAL ON INBOARD SIDE OF LEFT ENGINE ALLOWED BLEED AIR TO BLOW ON FIRE LOOP. NO ADDITIONAL PROBLEM FOUND. REPLACED 2 PERI-SEALS AND OPS TESTED OK.