As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 ENGINE FIRE WARNING DURING TAXI - OPENED #2 ENG COWLS AND TR'S ALLOWIING HALOGEN VAPORS TO DISPERSE PER AMM 72-00-00-200-819-A. DISCOVERED #1 FUEL NOZZLE B-NUT HAD BROKEN TORQUE (SAFETY WIRE INTACT) AND LEAKING FUEL PROVIDING THE SOURCE OF THE FIRE. REPLACED ALL DAMAGED COMPONENTS, RETORQUED ALL FUEL NOZZLES AND RESAFETIED. REF AMM 71-00-00-710-815-A. LEAK CHECK GOOD. OPS CHECK ON ALL COMPONENTS AND ENGINE RUN GOOD. A/C OK FOR SVC.