As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT AT ABOUT 1600FT THE CARGO DOOR LIGHT ILLUMINATED. CREW RAN CHECKLIST AND RETURNED TO IAH. ON LANDING LEFT ENGINE DIDN'T GO INTO REVERSE AND HAD A LARGE YAW MOVEMENT. CARGO DOOR - PERFORMED ADJUSTMENT / TEST ON CARGO DOOR SWITCH 19DD IAW SAAB 340B AMM 52-70-00 OPS CHECKED GOOD. LEFT ENGINE - PERFORMED ENGINE RUNS IAW SAAB 340B AMM 71-00-00, NO FAULT FOUND.