As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - FLIGHT ATTENDANTS REPORTED LOOSE CEILING PANEL AND AIR LEAK IN AFT CABIN. EMERGENCY DECLARED FLIGHT RETURNED MIA LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. FOUND OVERHEAD AIR DISTRIBUTION DUCT BETWEEN ROW 27 AND ROW 30 DAMAGED. REPLACED DUCT BETWEEN ROWS 27 AND 30. SYSTEM GROUND CHECK NORMAL OPERATION.