As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACTUATOR CAUTION LIGHT ILLUMINATED CENTER POSITION ON THE CAD WITH CORRESPONDING AMBER Y ON PFD. TROUBLESHOOTING REVEALED YAW SEMA IS BAD CAUSING ACTUATOR FAIL ON CAD AND AMBER Y ON PFD, HAS CODE YAWEMA INVAL. REMOVED AND REPLACED SEMA ACTUATOR IAW AMM 67-20-00, 4-8.