As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MSO - FLT 2583 - CARGO DOOR WARNING LIGHT CAME ON DURING CLIMB 20 MILES NORTH OF THE STATION. CREW RETURNED TO THE STATION. NO APPARENT PROBLEM WAS FOUND. CARGO DOOR SWITCHES AND CLICK CLACKS WERE INSPECTED, THE SWITCHES WERE CLEANED. NO DEFECTS WERE REPORTED. A TEST FLIGHT WAS COMPLETED WITH NO DEFECTS FOUND. (M)