As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FMC DISAGREE LIGHT ON CAT F/O EHSI DOING WITH A/P AT AND FMC LIGHT ON MODE ANUNCIATOR PANEL. ACFT GROUNDED. A/T LOGGED NO FAULTS IN HISTORY REF BITE PROCEDURE 22-31 TASK 801. CURRENT STATUS TEST PASSED REF MM 22-31-00. VERIFIED NO FMC FAILURES INFLIGHT.