What was found
AFTER TAKEOFF OUT OF BHM THE CABIN DOOR POPPED OPEN. RETURNED TO BHM. SECURED THE CABIN DOOR AND CONTINUED WITH FLIGHT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER TAKEOFF OUT OF BHM THE CABIN DOOR POPPED OPEN. RETURNED TO BHM. SECURED THE CABIN DOOR AND CONTINUED WITH FLIGHT.