As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE CLIMBING THROUGH FL350 LT AFCS FAILED. COULD NOT ENGAGE R AFCS OR YAW DAMPER. COULD NOT SELECT BETWEEN L & R AFCS. NO A/P OR YAW DAMPER OPERATION. REMOVED AND REPLACED WITH INSPECTED UNITS, BOTH NR 1&2 FLIGHT GUIDANCE COMPUTERS. OPS CHECK OF SYSTEM SHOWS NO DEFECTS. ALL WORK PERFORMED IAW HAWKER 800XP MM CHP- 34-22.