Reversionary Mode - Garmin G1000 NXi Pilot's Manual

SYSTEM OVERVIEW

REVERSIONARY MODE

The system alerts the pilot when backup paths are utilized by the LRUs. Refer to the Appendices for
NOTE:
further information regarding system-specific alerts.
In the event of a display failure, the system can be manually switched to reversionary (backup) mode (all
remaining displays enter reversionary mode). In reversionary mode, all important flight information is presented
on the remaining display(s) in the same format as in normal operating mode.
If a display fails, the appropriate IAU-display Ethernet interface is cut off. Thus, the IAU can no longer
communicate with the remaining display (refer to Figure 1-5), and the NAV and COM functions provided to the
failed display by the IAU are flagged as invalid on the remaining display. The system reverts to backup paths for
the ADAHRS/AHRS, ADC, Engine/Airframe Unit, and Transponder, as required. The change to backup paths
is completely automated for all LRUs and no pilot action is required.
Reversionary mode may be manually activated by pressing the Audio Panel' s red DISPLAY BACKUP Button.
Pressing this button again deactivates reversionary mode.
10
DISPLAY BACKUP Button
Manually Activates/Deactivates Reversionary Mode on All Displays
Figure 1-5 Reversionary Mode (Failed PFD)
Garmin G1000 NXi Pilot's Guide for Cessna Nav III
NAV1 and COM1 Flagged Invalid (provided by the failed PFD)
190-02177-00 Rev. A