As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE "A" AUTOPILOT DISENGAGES WHEN SELECTED IN COMMAND MODE (FAULT CODE 221-080-00). ACFT GROUNDED. REPLACED AUTOPILOT ELEVATOR ACTUATOR 'A' (M1020) IAW AMM 22-11-26 PAGE BLOCK 401. ACCOMPLISHED LEAKS CHECK AND AUTOPILOT ELEVATOR ACTUATOR TEST ARE GOOD.