As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
JAX/BHM - FLT 5380 - IN-FLIGHT, THE CABIN DOOR ANNUNCIATOR ILLUMINATED. THE CREW DECLARED AN EMERGENCY AND RETURNED TO JAX WITH NO FURTHER INCIDENTS. MAINTENANCE REPAIRED A BROKEN WIRE HARNESS IN THE DOOR, OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (X)