As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI WITH ACFT PARKED WAITING FOR TAKEOFF CLEARANCE RT ENGINE NACELLE OVERHEAT CAME ON. FIRE EXTINGUISHER USED, ONLY ONE SHOT. PERFORMED GVI OF RT ENGINE FOR FIRE AND NO DEFECTS NOTED AT THIS TIME. PERFORMED OPERATIONAL TEST OF ENGINE FIRE DETECTION SYSTEM IAW ATR JIC NR 26-12-00. REMOVED AND REPLACED NR 2 ENGINE FIRE BOTTLE IAW W/C EX NR 26-21-71-RAI-10000 AND REMOVED AND REPLACED NR 2 ENGINE FIRE BOTTLE CARTRIDGE IAW JIC NR 26-21-72.