As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED A BAGGAGE SMOKE INDICATION IN FLIGHT ON EICAS AND EXT/BAGG PUSHBUTTON. THE ACFT RETURNED TO DEPARTURE WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE ACFT AND RESECURED A LOOSE WIRE ON THE SMOKE DETECTOR PANEL, AND R & R RELAYS K0629 AND K0625. OPS CHECKS WERE COMPLETED WITH NO DEFECTS NOTED AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.