As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKE-OFF ON LEG , CREW OBSERVED BAGGAGE SMOKE WARNING ANNUNCIATION. FOLLOWING AFM PROCEDURES, CREW DECLARED AN EMERGENCY AND DIVERTED BACK TO DEPARTURE. ACFT LANDED AND CLEARED RUNWAY, CREW INSPECTED BAGGAGE COMPARTMENTS AND NO SMOKE OR FIRE WAS PRESENT. ON SITE, MX REPLACED FWD BAGGAGE SMOKE DETECTOR AND PERFORMED OPS CHECK OK. ACFT RETURNED TO SERVICE.