6 / 20

In order to know in which mode the auto-throttle is engaged, the crew will check the:

1 – auto-throttle ARM switches
2 – auto-throttle disengage switches
3 – autopilot mode control panel
4 – mode annunciator panel (FMA)

The combination that regroups all of the correct statements is:

  • A
    3.
  • B
    2, 4.
  • C
    1,3
  • D
    4.
The FMA is usually located on the top of the PFD and displays the active and the armed modes of the autopilot and auto-throttle system. The flight crew uses this system to check and confirm any selection made on the autopilot control panel. On a large commercial aircraft, the auto-throttle system usually has the following modes of operation: SPEED/MACH mode (holding of IAS/Mach number) and THRUST mode (N1 or EPR hold). In fact, the autopilot pitch channel and the auto-throttle system work together. The operating mode of one will determine the operating mode of the other.
From left to right, the FMA indicates the:
  • Auto-thrust mode and autobrake modes (on more complex aircraft such as the A350).
  • Autopilot/FD vertical modes.
  • Autopilot/FD lateral modes.
  • Approach capabilities (=autoland capabilities) and autopilot designator (1, 2, 1+2) and auto-thrust engagement status.

Your Notes (not visible to others)



This question has appeared on the real examination, you can find the related countries below.

Keyboard Shortcut Use Keyboard Shortcuts