How can I switch off the yaw damper in an Airbus A350? How can I switch off the yaw damper in an Airbus A350? 
In the A320, this can be done by switching off the FAC, but the A350 doesn't have a FAC switch; it has prim and sec instead of FAC and ELAC.
On the simulator normally you can simulate the failure of the yaw damper actuators which has the same effect as switching off the yaw damper.
On the aircraft you can’t do it from the cockpit panels without switching off lot of other functions