As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CENTER AUTOPILOT WILL NOT ENGAGE AND FIRST OFFICER FLT DIRECTOR BARS LOST WHEN CENTER FLT DIRECTOR ENGAGED. CENTER FCC INOPERATIVE. REPLACED CENTER FLIGHT CONTROL COMPUTER AS PER AMM. OPS CHECKED NORMAL. ALSO ACCOMPLISHED AUTOPILOT FLIGHT CONTROL TEST AS PER AMM. OPS CHECKED NORMAL.