As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT AROUND 23,000 FEET AUTOPILOT FAIL AND RUDDER 1-2 FAIL. COMPLIED WITH AOM 1 PROCEDURES LEAD US TO TURN SYS 1 AND 2 OFF. NORMAL OPS WITH SYS 2 OFF.. EXCESSIVE YAW WITH BOTH SYS OFF. TURNED SYS 1 BACK ON AND PROCEEDED TO DIVERSION AIRPORT UNDER NORMAL CONDITIONS. REMOVED AND REPLACED NR 2 RUDDER PRESSURE SWITCH IAW AMM 27-23-04. OPS CHECK AND LEAK CHECK GOOD.