Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe
Flight Crew Diverted; General Declared Emergency
Aircraft
While at cruise at 40;000 FT we has a CAS message stating we has lost our autopilot; yaw damper and ventral rudder; a dutch roll started and an emergency descent was initiated and ATC advised of our actions. Aircraft was descended to 10;000 FT where we leveled off and diverted. ATC was advised of same and a normal landing was made. While in the emergency descent ATC was clearing us to flight levels that we could not stop at; we advised ATC to turn us if they needed and they did.
EMB505 Captain at FL400 experiences failure the autopilot followed by the yaw damper and the ventral rudder. An emergency descent is initiated and the flight diverts to a suitable airport.