.
Flight Control Panel
Yaw Damper Switch

OFF –

Disengages yaw damper.

ON –

  • Engages main yaw damper to main rudder power control
    unit if the B FLT CONTROL switch is in the ON position

  • Engages the standby yaw damper to standby rudder
    power control unit if both the A and B FLT CONTROL
    switches are in the STBY RUD position.