As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 3039, RIC TO BOS. WHILE CLIMBING THROUGH FL180 THE CREW RECEIVED A BAGGAGE DOOR OPEN EICAS MESSAGE. THE QRH WAS FOLLOWED AND IT WAS DECIDED TO RETURN TO BOS. THERE WAS NO CHANGE IN PRESSURIZATION AND THE AIRCRAFT LANDED WITHOUT INCIDENT. THE BAGGAGE DOOR WAS VERIFIED CLOSED AND THE INDICATION WAS PLACED ON MEL. THE CORRECTIVE ACTION WILL BE SUBMITTED AS A SUPPLEMENT TO THIS REPORT.