As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AP/YD DISENGAGED DURING CLIMB. AP/YD FAIL MESSAGE DISPLAYED ON BOTH PFD'S. COMPLIED WITH EMERGENCY ABNORMAL CHECKLIST. ALSO ON DESCENT "YD NOT CENTERED" MESSAGE DISPLAYED ON BOTH PFD'S. INTERROGATED CDS FCS PAGE NO ASSOCIATED FAULTS FOUND RESET CIRCUIT BREAKERS AND COMPLIED WITH YAW DAMPER OP TEST IAW AMM TASK 22-11-36-710-801 OP TEST GOOD. RETURNED TO SERVICE. NO PARTS REPLACED.