190-02177-02 Rev. A
Garmin G1000 NXi Pilot’s Guide for the Cessna NAV III
SY
STEM
O
VER
VIEW
FLIGHT
INSTRUMENTS
EIS
AUDIO P
ANEL
& CNS
FLIGHT
MANA
GEMENT
HAZARD
AV
OID
ANCE
AFCS
ADDITIONAL
FEA
TURES
APPENDICES
INDEX
9
SYSTEM OVERVIEW
Current database information includes the valid operating dates, cycle number and database type. When this
information has been reviewed for currency (to verify that no databases have expired), the pilot is prompted to
continue. Pressing the
ENT
Key
acknowledges this information and displays the ‘Map - Navigation Map’ Page.
NORMAL OPERATION
NOTE:
In normal operating mode, backlighting can only be adjusted from the PFD (see Section 1.5). In
reversionary mode, it can be adjusted from the remaining display.
In normal operating mode, the PFD presents graphical flight instrumentation (attitude, heading, airspeed,
altitude, vertical speed), replacing the traditional flight instrument cluster (see the Flight Instruments Section
for more information). The MFD normally displays a full-color moving map with navigation information (see
the Flight Management Section), while the left portion of the MFD is dedicated to the Engine Indication System
(see the EIS Section). Both displays offer control for COM and NAV frequency selection.
Figure 1-5 System Normal Operation
REVERSIONARY MODE
NOTE:
The system alerts the pilot when backup paths are utilized by the LRUs. Refer to the Appendices for
further information regarding system-specific alerts.
In the event of a display failure, the system automatically switches to reversionary (backup) mode. In
reversionary mode, all important flight information is presented on the remaining display 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, 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 at any time by pressing the Audio Panel’s red
DISPLAY BACKUP
Button. Pressing this button again deactivates reversionary mode.
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