As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RETURNED TO FIELD DUE TO LEFT MAIN GEAR DOOR NOT UPLOCKED AFTER GEAR RETRACTION. SUPPLEMENTAL DATA UPDATE FOUND LH MAIN GEAR DOOR PROXIMITY SENSOR (29GA) AND CONNECTOR DAMAGED. REPLACED SENSOR AND CONNECTOR. ALSO DETERMINED LH MAIN LANDING GEAR UPLOCK ASSEMBLY NOT WORKING CORRECTLY. REPLACED UPLOCK ASSEMBLY.