190-01754-01 Rev. 4
FAA Approved AFMS or Supplemental AFM for the Garmin G3X Touch EFIS
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7-5
Lateral Deviation Indication
The CDI can display two sources of navigation: GPS or NAV (VOR, localizer) depending on the
external navigator(s) configured. Color indicates the current navigation source: magenta (for GPS)
or green (for VOR and LOC). The full-scale limits for the CDI are defined by a GPS-derived distance
when coupled to GPS. When coupled to a VOR or localizer (LOC), the CDI has the same angular
limits as a mechanical CDI. If the CDI exceeds the maximum deviation on the scale (two dots) while
coupled to GPS, the crosstrack error (XTK) is displayed below the white aircraft symbol.
In addition to the flight instruments, the PFD also displays supplemental information, including the
Outside Air Temperature (OAT), wind data, User Timer, and G-Meter.
7.5 Display of PFD information on MFD
MFDs installed as part of the G3X touch system can display PFD information if manually selected by
the pilot, or will automatically do so if the installed PFD display fails. The display of PFD information
on an MFD is a duplication of the original PFD information and is not an independent compilation of
data from other sources.
7.6 Engine Indication System
The G3X Touch EIS displays engine, electrical, and other system parameters. Additional EIS
information can be viewed by selecting the Eng Page on the MFD.
Green bands on the instruments indicate normal ranges of operation; amber and red bands indicate
caution and warning, respectively. When unsafe operating conditions occur, the corresponding caution
readout will display solid amber and the warning readout will flash red. An aural alert is also issued
with a flashing red warning. If sensory data to an instrument becomes invalid or unavailable, a red
“X” is displayed across the instrument.
7.7 Communication / Navigation / Surveillance System
The Communication/Navigation/Surveillance (CNS) system includes the audio interface,
communication radios, navigation radios, and Mode S transponder. These functions can be accessed
from the boxes that make up the CNS Data Bar located at the top of the PFD and/or MFD.
CNS Data Bar
7.8 Remote Transponder Interface
