As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON GPS APPROACH, VFR CONDITIONS, THE PILOT NOTICED THAT THE FLIGHT COMMAND INDICATOR WAS OSCILLATION VERTICALLY PRIOR TO THE AUTO PILOT DISCONCERTING. THE APPROACH WAS CARRIED OUT MANUALLY WITH OUT INCONTINENT. MAINTENANCE REPLACED THE FLIGHT COMMAND INDICATOR WAS REPLACED AND THE SYSTEM WAS GROUND FUNCTION CHECKED SERVICEABLE.