As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE STARTING CHECKS, ENGINE FIRE LIGHT ILLUMINATED. SHUTDOWN ACFT, NO SIGN OF FIRE IN ENGINE COMPARTMENT. ENGINE FIRE LIGHT REMAINED ILUMMINATED. INSPECTED AND CLEANED THE ACCESSIBLE ELECTRICAL CONNECTOR IN THE FIRE DECTECTION SYSTEM. AFTER CLEANING, RECONNECTED THE CONNECTOR PLUG TO ENGINE DECK. FIRE LIGHT EXTINGUISHED. PERFORMED A FIFTEEN MINUTE GROUND RUN AND FUNCTION TEST OF THE FIRE DETECTION SYSTEM WITH NO DEFECTS NOTED.