As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2016 - WHILE SITTING AT THE GATE THE CREW REPORTED A BAGGAGE SMOKE WARNING ON EICAS. THE CREW VERIFIED THAT THERE WAS NO SMOKE OR FLAMES PRESENT IN THE BAGGAGE COMPARTMENT, AND MAINTENANCE REMOVED AND REPLACED THE AFT BAGGAGE COMPARTMENT SMOKE DETECTOR, OPERATIONALLY TESTED WITH NO DEFECTS, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.