As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH THE AUTOPILOT ON, THE CONTROL YOKE JERKS FORWARD SHARPLY. THE JERK IS MILD DURING CRUISE INTERMITTENTLY. THE JERK IS MORE PRONOUNCED DURING THE DESCENT AND LEVEL OFF AT LOW ALTITUDE FOR THE APPROACH. REMOVED AND REPLACED NR 2 AHC COMPUTER. OPS CHECKS GOOD IAW 34-21-01.