Garmin G900X Pilot’s Guide
190-00726-00 Rev. J
12
SYSTEM OVERVIEW
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
In the event of a display failure, the G900X System automatically switches to reversionary (backup) mode. In
reversionary mode, all important flight information is presented on the remaining display(s) in the same format
as in normal operating mode.
•
PFD1 failure
– MFD enters reversionary mode; PFD2 remains in normal mode.
•
MFD failure
– PFD1 and PFD2 enter reversionary mode.
•
PFD2 failure
– PFD1 and the MFD remain in normal 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 1-1), 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 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.
If the system fails to detect a display problem, reversionary mode may be manually activated by pressing the
Audio Panel’s red
DISPLAY BACKUP
Button. Pressing this button again deactivates reversionary mode.
Figure 1-8 G900X Two Display Reversionary Mode (Failed PFD)
DISPLAY BACKUP
Button Manually Activates/
Deactivates Reversionary Mode on Both Displays
NAV1 and COM1 (provided by the
failed PFD) Flagged Invalid
Figure 1-9 G900X Three Display Reversionary Mode (Failed PFD1)
DISPLAY BACKUP
Button
Manually Activates/Deactivates Reversionary Mode on All Displays
NAV1 and COM1 Flagged Invalid (provided by the failed PFD)
Содержание G900X
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