As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE AP A FAIL CAS MESSAGE POSTED FOLLOWED 30 SECONDS LATER BY AP B FAIL CAS MESSAGE. BOTH MESSAGE REMAINED ON THE RESET OF THE FLIGHT REVIEWED CDMS FAULTS, FOUND PITCH TRIM FAULT ON LAST FLIGHT. REMOVED AND REPLACED HORIZONTAL STAB TRIM CONTROL UNIT. IAW MM CHAPTER 27-40-00. EICAS STAB RIGGING CHECKS GOOD. OPS CHECKS GOOD.