What was found
AUTOPILOT MADE UN-COMMANDED MOMENTARY PITCH INPUTS AT FL230 AND THEN AGAIN AT 4000'MSL. FOUND ELEVATOR TRIM SERVO CLUTCH SLIPPING-OUT OF TOLERANCE. ADJUSTED THE SERVO CLUTCH TO MAINTENANCE MANUAL SPECS.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AUTOPILOT MADE UN-COMMANDED MOMENTARY PITCH INPUTS AT FL230 AND THEN AGAIN AT 4000'MSL. FOUND ELEVATOR TRIM SERVO CLUTCH SLIPPING-OUT OF TOLERANCE. ADJUSTED THE SERVO CLUTCH TO MAINTENANCE MANUAL SPECS.