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 ON DESCENT. LOADMASTER VISUALLY VERIFIED CARGO DOOR WAS CLOSED AND LATCHED. LIGHT EXTINGUISHED AT APPROX 2.0 PSI CABIN DIFF PRESSURE. DEFERRED MAIN CARGO DOOR INDICATION PER MEL 52-71-1-2. PLACARD INSTALLED MPM 52-11-1 C/W. VERIFICATION OF MAIN CARGO DOOR CLOSED AND LOCKED MUST BE C/W PRIOR TO EACH DEPARTURE.