As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EICAS MSG: AUTOPILOT, DURING DESCENT AND APPROACH. AUTOPILITO MAIN AND ALTERNATE STABILIZER TRIMS WERE LOST DURING APPROACH. AUTOPILOT INOPERATIVE DURING APPROACH. CORRECTIVE ACTION: REMOVED AND REPLACED LH FCC COMPUTER, PERFORMED OPERATIONAL TEST NORMAL. REMOVED AND REPLACED LH SAM COMPUTER, PERFORMED OPERATIONAL TEST AS PER AMM 27-09-00/22-22-00.