As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, FLIGHT ATTENDANT REPORTED SMOKE ALARM IN RIGHT LAVATORY GOING OFF WITH A BURNING SMELL. CREW DECLARED AN EMERGENCY AND THE FLIGHT WAS RETURNED TO ATL. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE RIGHT GROUND COOLING FAN AND LAVATORY SMOKE DETECTOR, OPERATIONAL CHECK NORMAL.