What was found
AIR TURNBACK. AFTER TAKEOFF, AFT CARGO DOOR LIGHT ILLUMINATED. ACFT WOULD NOT PRESSURIZE. ADJUSTED AFT CARGO DOOR AFT ROLLER LOCK PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK. AFTER TAKEOFF, AFT CARGO DOOR LIGHT ILLUMINATED. ACFT WOULD NOT PRESSURIZE. ADJUSTED AFT CARGO DOOR AFT ROLLER LOCK PER MM.