Accessing System Functionality; Menus - Garmin G3X Pilot's Manual

Loss of GPS, magnetometer, or air data inputs is communicated to the pilot by
message advisory alerts. Any failure of the internal AHRS inertial sensors results in loss
of attitude and heading information (indicated by red 'X' flags over the corresponding
flight instruments). If the G3X senses that the magnetic heading measurement is valid,
but possibly outside of the internal accuracy limits, the numeric heading value on the
PFD is display in yellow.
If GPS input fails, the AHRS can continue to provide attitude and heading information
to the PFD as long as magnetometer and airspeed data are available and valid.
If the magnetometer input fails, the AHRS continues to output valid attitude
information; however, the heading output on the PFD Page is flagged as invalid with
a red 'X'.
Failure of the air data input has no effect on the AHRS output while AHRS is receiving
valid GPS information. Invalid/unavailable airspeed data in addition to GPS failure
results in loss of all attitude and heading information. Likewise, loss of magnetometer
(heading) data, in combination with loss of GPS data results in a loss of all attitude
and heading information.

1.7 ACCESSING SYSTEM FUNCTIONALITY

MENUS

NOTE: Flight Log and Track Log must be accessed from the MFD in a Multiple
Display system.
The G3X has a dedicated MENU Key. Press once to display a context-sensitive list
of options for the page or the dedicated PFD. Press twice to display the Main Menu.
The Page Menu allows the user to access additional features or make setting changes
which specifically relate to the currently displayed page. The menu will display 'No
Options' when there are no options for the page selected.
Navigating the page menu:
1) Press the MENU Key once to display the Page Menu.
2) Turn or move the FMS Joystick to scroll through a list of available options
(a scroll bar always appears to the right of the window/box when the
option list is longer than the window/box).
190-01115-00 Rev. J Garmin G3X Pilot's Guide
System Overview
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