As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED AFTER TAKEOFF AND GEAR RETRACTION, GEAR WARNING ANNUNCIATOR LIGHT AND GEAR DISAGREE EICAS MESSAGE ILLUMINATED. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. REPLACED RIGHT SYSTEM NUMBERS ONE AND TWO GEAR UPLOCK SENSORS. SYSTEM GROUND CHECK NORMAL OPERATION.