As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIT- FLIGHT 4324, AFTER ROTATION CARGO DOOR OPENED. RETURNED TO THE FIELD AND ACCOMPLISHED A UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE DOOR AND FOUND NO DEFECTS. COMPLIED WITH TEST OF DOOR AND PRESSURIZATION WITH NO DEFECTS. AIRCRAFT RETURNED TO SERVICE. NO PARTS REPLACED.