AIRPLANE
OPERATIONS
MANUAL
AUTOPILOT
REVISION 36
2-19-10
Page
15
Code
01
AOM-145/1114
This submode is annunciated by the ROL label and GA label, both on
the PFD, and it is canceled if any of the following conditions occur:
Glide slope capture.
The ALT, SPD, VS, or FLC mode is selected.
Transition to capture Altitude Preselect mode occurs.
Air data computer source selection is changed.
Once a positive rate of climb has been achieved, this submode
commands a pitch angle of 10° nose up. If transition to Speed Hold
Mode occurs, IAS mode annunciator replaces the GA mode
annunciator.
Transition from Go Around Submode to Speed Hold Mode
automatically occurs:
If, at anytime, the speed is lower than 1.23 VS. In this case,
1.23 VS is targeted, replacing the pre-selected speed target.
If this speed can not be maintained, altitude is held.
If, 20 seconds after Go Around engagement, the speed is
higher than 170 KIAS. In this case, 170 KIAS is targeted,
replacing the pre-selected speed target.
If, 20 seconds after Go Around engagement, the speed is up
to 5 kt higher or lower than the pre-selected speed target,
which, in this case, is maintained.
The Go Around Submode ignores a pre-selected altitude below the
airplane, and a pre-selected altitude above the airplane is captured if it
is higher than the Go Around submode engagement altitude plus
400 ft (pressure altitude). This feature is provided to avoid the airplane
leveling off if the pilot has not readjusted the pre-selected altitude to
the new missed approach altitude.
WINDSHEAR ESCAPE GUIDANCE MODE
The Windshear Escape Guidance mode is provided in order to recover
from a windshear situation.
For further information on windshear detection and escape guidance
system, refer to Section 2-4 – Crew Awareness.
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