As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT APPROX 12000 MSL FWD CARGO DOOR WARNING LIGHT ILLUMINATED. RETURNED TO FIELD. LANDING UNEVENTFUL. PERFORMED VISUAL INSPECTION OF FWD BAG DOOR UPON ARRIVAL AT GATE FOUND EXTERIOR HANDLE NOT FULLY SEATED PERFORMED OPS TEST OF FWD BAG DOOR IAW AMM 52-32-00-710-801 DOOR AND DOOR WARNING SYS OPERATED NORMALLY OK FOR CONTINUED SERVICE. NO PARTS REPLACED.