As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED DUE TO EIFI COMP MON YELLOW EICAS WITH IAS FLAG. AIRSPEED & ALT DIFFERENCE BETWEEN CAPTAIN & FIRST OFFICERS INDICATION & THE STANDBY. AN EMER WAS DECLARED. SWAPPED ADCS & PROBLEM CLEARED. NO EVIDENCE OF MOISTURE NOTED. SYS WAS TESTED AT MULTIPLE AIRSPEEDS & ALTITUDES WITH NO DEFECTS NOTED.