Garmin G900X Pilot's Manual - page 446
Garmin G900X Pilot’s Guide
190-00726-00 Rev. A
A-6
APPENDIX A
System Annunciation
Comment
Attitude and Heading
Reference System is aligning.
Display system is not receiving
attitude information from the
AHRS.
AHRS calibration incomplete or
configuration module failure.
GPS information is either
not present or is invalid for
navigation use. Note that
AHRS utilizes GPS inputs
during normal operation.
AHRS operation may be
degraded if GPS signals are not
present (see POH).
Display system is not receiving
airspeed input from air data
computer.
System Annunciation
Comment
Display system is not receiving
vertical speed input from the
air data computer.
Display system is not receiving
valid heading input from AHRS.
Display system is not receiving
altitude input from the air data
computer.
Display system is not receiving
valid true airspeed information
from air data computer.
Display system is not receiving
valid OAT information from air
data computer.
Display system is not receiving
valid transponder information.
Other Various Red X
Indications
A red ‘X’ through any other
display field (such as engine
instrumentation fields)
indicates that the field is not
receiving valid data.
Table A-2 G900X System Annunciations