As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STL - FLT 7442 - RIGHT ENGINE FIRE WARNING ON RUNWAY BEFORE TAKEOFF, FLIGHT CREW FIRED FIRE BOTTLES AND EVACUATED AIRCRAFT. MAINTENANCE INSPECTED ENGINE AND FOUND NO EVIDENCE OF FIRE, MAINTENANCE THEN REMOVED AND REPLACED ZONE 1 FIRE LOOP, OPERATONAL CHECK GOOD. (X)