As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - DURING CRUISE, CREW REPORTED THAT THE UPPER DISPLAY UNIT FAILED. THE CREW DECLARED AND EMERGENCY AND RETURNED TO PHX. THE PAX DID NOT BRACE, THE LANDING WAS UNEVENTFUL. MAINTENANCE REMOVED AND REPLACED BOTH EICAS DISPLAY UNITS AND REPAIRED A BROKEN WIRE. EICAS DISPLAYS OPS CHECK WAS GOOD PER T/C R1B31602. THE AIRCRAFT WAS RETURNED TO SERVICE. DISPLAY - P/N - 622-7999-003 - S/N 2399 - TSR - 68515.