As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CARGO DOOR WARNING LIGHT CAME ON IN FLIGHT, CREW DESCENDED AND DEPRESSURIZED, AND THE LIGHT WENT OUT. CREW LANDED AT CLOSEST AIRPORT. FOUND CARGO DOOR HANDLE NOT COMPLETELY STOWED WHEN CHECK AT ARRIVAL. INSPECTED CARGO DOOR AND LATCHES, CLEANED AND LUBED SWITCHES. DOOR OPS CHECK GOOD. NO FURTHER PROBLEMS NOTED WITH THE DOOR. (NM05200502388) (K)