As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#483, BOS-RDU. (AIRCRAFT DECLARED AN EMERGENCY AND PERFORMED AN AIR TURN BACK TO BOS) 'AUTO PILOT FAIL INFLIGHT AILERONS VERY DIFFICULT TO MOVE MANUALLY; FOUND AILERON TRIM ACTUATOR SLOW TO MOVE - OCCAISONALLY UNRESPONSIVE. REMOVED AND REPLACED AILERON TRIM ACTUATOR IAW AMM 27-14-01. OPS CHECKS GOOD.