As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, HEARD A BANGING NOISE FROM THE NOSE GEAR AREA. RETURNED TO THE FIELD WITHOUT INCIDENT. MAINTENANCE FOUND THE RT NOSE LANDING GEAR DOOR UNLATCHED. INSPECTED THE DOOR AND THE LATCHING MECHANISM AND FOUND NO DEFECTS. THE DOOR WAS SECURED AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.