As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ROTATION, THE DOOR LIGHT ON THE CREW ALERTING PANEL AND THE MASTER CAUTION ILLUMINATED. THE CREW ELECTED TO RETURN TO DEPARTURE, NO EMERGENCY WAS DECLARED. LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE FWD CARGO DOOR AND DOOR VENT LATCH. VERIFIED DOOR CLOSES & LATCHES, DOOR UNLOCK LIGHT EXTINGUISHED WHEN DOOR CLOSED. NO DEFECTS NOTED. OPS CHECKED GOOD.