As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LWR EICAS DISPAY INOP IN LEFT POSITION. AIR TURN BACK PERFORMED. AICRAFT GROUNDED BY MAINTENANCE. REMOVED AND REPLACED THE RIGHT EICAS COMP, THE BOTTOM EICAS DSIP. SWITCH MODULE AND THE EICAS SIGNAL CONSOLIDATION CARD IAW AMM 31-41-01, 31-41-04, AND 31-41-07 ALL OPS TESTS GOOD AT THIS TIME AIRCRAFT REMAINS ETOPS 180