Using AXIS Flight Displays With an External GPS Navigator
If a 116C/NC fails and navigation reverts to a 116B, do not use the approach information provided by the internal navigation of the GDU™ 116B (VFR only) as a means of navigating any instrument approach. The consumer GPS provided in the GDU 116B AXIS™ flight display does not provide IFR qualified GPS data and is not suitable for IMC flight. These waypoints and associated course lines are made available for monitoring purposes only.
IFR external navigation may only be used if the CDI Source on the PFD is synced to the external navigation source.
No approach vertical guidance will be provided for published instrument procedures when loaded into the GDU 116B AXIS flight display.
If unsure whether or not your system uses an RS 232 connection for external GPS navigators contact your dealer or Garmin Product Support for clarification.
The GDU 116B internal GPS flight plan is for VFR use only.
In a configuration which includes one or more external GPS navigators (i.e., GTN or GNS Series), the AXIS flight display presents the selected external GPS Navigator’s flight plan and guidance information on the PFW and MFW. When an external navigator is configured the internal GPS can still be used for VFR navigation.