As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BHM - INFLIGHT DFW-JAX. CREW REPORTED FORWARD FUSELAGE VIBRATION DURING FLIGHT. EMERGENCY DECLARED FLIGHT DIVERTED BHM LANDED WITHOUT INCIDENT. FOUND FORWARD LAVATORY SERVICE DOOR PANEL HAD ONE LATCH NOT SECURE. MAINTENANCE SECURED DOOR. SYSTEM GROUND CHECK NORMAL OPERATION.