As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FIRE HANDLE ILLUMINATED ON TAXI THEN EXTINGUISHED. INSPECTED FIRE LOOP NO DEFECTS NOTED, INSPECTED NR 1 ENGINE FOUND NO EVIDENCE OF FIRE. INSPECTED FIRE LOOP WIRING HARNESS FOUND INSOLATION CHAFED FROM GROUND WIRE. SECURED CHAFED SECTION WITH F4 TAPE. PERFORMED 30 MINUTE GROUND RUN AT ALL POWER SETTINGS NO FIRE INDICATION NOTED. REPAIRED GROUNDING WIRE ON LEFT ENGINE FIRE LOOP.