Pilatus PC-12 NGX, Pilot'S Information Manual

Page: 275 / 625

Automatic Flight Control System Failures 3-22-50
AFCS uncommanded deviation from flight path
Abrupt control and/or airplane motion
Accomplish steps 1 and 2 simultaneously.
1. Airplane Control Wheel............... GRASP FIRMLY and regain aircraft
control
2. Autopilot Disengage switch......... PRESS to disengage the autopilot (pilot
or copilot yoke)
3. Aircraft........................................ RETRIM manually as necessary
4. A/P SERVO circuit breaker
(Avionic 1 Bus
L
Z2).....................
PULL
WARNING
DO NOT ATTEMPT TO RE-ENGAGE THE AUTOPILOT FOLLOWING AN
AUTOPILOT OR AUTOTRIM MALFUNCTION.
Abnormal disconnect
Flashing red AP on PFD and continuous “Cavalry Charge” aural warning
1. Airplane Control Wheel............... GRASP FIRMLY and regain aircraft
control
2. Autopilot Disengage switch......... PRESS to disengage the autopilot (pilot
or copilot yoke)
3. Aircraft......................................... RETRIM manually as necessary
4. Aircraft......................................... If no AFCS associated CAS messages
attempt to re-engage autopilot once
--- END ---
CAS Caution messages
AP HOLD LH (RH) WING DN , or AP HOLD NOSE UP (DN) , or YD HOLD NOSE
LEFT (RIGHT)
1. Airplane Control Wheel and
rudder pedals.............................. Grasp and position feet to gain aircraft
control
2. Autopilot Disengage switch......... PRESS to disengage the autopilot (pilot
or copilot yoke)
3. Aircraft......................................... RETRIM manually as necessary
Note
When the AFCS is manually disengaged, an aural warning is given and the PFD
AP flashes red for 2.5 seconds.
Continued on next page
Section 3 - Emergency Procedures (EASA Approved)
APEX Failures
Pilot's Operating Handbook Report No: 02406
Issue date: Mar 06, 2020
Page 3-22-27
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