As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT WAS GNDED. AFTER TAKEOFF CREW RECEIVED A GEAR DOOR OPEN MSG & RETURNED WHERE THE ACFT LANDED SAFELY WITH NO OTHER INCIDENTS REPORTED. NO EMER WAS DECLARED. ACCOMPLISHED FIM TASK 32-30-00-815-813 & FOUND THE RT MLG TRUCK POSITION, TILT, ACTUATOR WHICH WAS REPLACED IAW AMM 32-32-15-401. A SATISFACTORY OPERATIONAL CHECK OF THE LG DOORS WAS ACCOMPLISHED IAW AMM 32-35-00-501.