As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB OUT CREW REPORTED, MAIN CARGO DOOR LIGHT ILLUMINATED AT FL280. PRESSURIZATION OK. CREW ELECTED AIR TURN BACK TO KLAL WITH AN EMERGENCY DECLARATION. LANDING WAS WITHOUT INCIDENT AND NO ADDITIONAL PRECAUTIONARY ACTIONS NOTED. FAULT TRANSFERRED TO DEFERRAL MAINTENANCE ITEM 52639 PER ATI MINIMUM EQUIPMENT LIST 52-71-01-02. CORRECTIVE ACTION DUE 26 JUNE 2024. AIRCRAFT RESUMED SERVICE.