As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FLT CTRL FAULT AFCU INOP DURING CLIMB CREW HAD FLIGHT CONTROL ADVISORY POST ON EICAS DURING CLIMB - FLIGHT CREW HAD ADVISORY - FLT CTRL FAULT WITH INFO 27 FLT CTRL FAULT AFCU INOP AND MAINTENANCE MESSAGE - HSTA (MPE1) POSITION SENSOR 3 RVDT ELECTRICAL FAULT/REPORTED BY PFCC. AFCU REPLACED FAULT CLEARED AND AIRCRAFT RELEASED. AFCU P/N C05500008-003 (TC# 20190607008)