As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING T/S OF 'B' AUTOPILOT ELEVATOR ACTUATOR FOUND CORROSION ON 'A' ELEVATOR AUTOPILOT ACTUATOR. CONNECTOR #. GROUNDED - YES. REMOVED AUTOPILOT ELEVATOR ACTUATOR "A" REF B737-800 AMM 22-11-26-00-801. INSTALLED NEW "A" AUTOPILOT ACTUATOR. LEAK CHECK OK. REF AMM 22-11-26-400-801 AND AMM 27-31-00-840-802. COMPLETED ALL TESTING OF THE A CHANNEL ELEVATOR AUTOPILOT ACTUATOR PER AMM 22-11-26/401. ALL TESTS NORMAL.