As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXPERIENCED A FWD CARGO DOOR WARNING AT 1200 FT AND RTF. ACCOMPLISHED A VISUAL INSPECTION OF DOOR WITH NO FINDINGS. MX FOUND THE POSITION SENSOR 30WV WAS FOUND FOULED, THE SENSOR WAS CLEANED AND THE INDICATION SYSTEM WAS CONFIRMED FUNCTIONAL IAW TSM 52-361-00-810-A.