As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOS - FLT 4579 - CREW REPORTED A BAGGAGE SMOKE WARNING WHILE ON TAXIWAY. FIRE BOTTLE WAS FIRED THEN A VISUAL CHECK THROUGH THE PEEPHOLE SHOWED NO FIRE. THE INDICATION WENT OUT AT THIS TIME. MAINTENANCE COULD NOT DUPLICATE DISCREPANCY. AN OPERATIONAL CHECK WAS COMPLIED WITH IAW EMB MM WITH NO DEFECTS NOTED. THE FIRE BOTTLE WAS REPLACED AND THE AIRCRAFT WS RETURNED TO SERVICE. (M)