As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF THE CREW RECEIVED A FLAP FAIL MESSAGE ON EICAS. RAN THROUGH THE APPROPRIATE CHECK LISTS AND RETURNED TO IAH AND LANDED WITHOUT INCIDENT. MAINTENANCE CHECKED THE CMC FOR MESSAGES AND FOUND A RT TRANSMISSION FAIL CMC. THE RIGHT FLAP TRANSMISSION BRAKE AND THE FLAP SYSTEM OPERATED NORMALLY.