As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CARGO DOOR LIGHT ILLUMINATED IN FLIGHT. CORRECTIVE ACTION & OTHER PERTINENT INFORMATION: PERFORMED OPS CHECK OF MAIN CARGO DOOR IAW AEI CARGO CONVERSION B737 AMM 52-37-01, OPS CHECK GOOD, DOOR VERIFIED LOCK ON GROUND, NO MORE DEFECTS NOTED.