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Garmin G1000 Cockpit Reference Guide for the Mooney M20M & M20R
12-6
SECTION 12 – ANNUNCIATIONS
& ALERTS
A red ‘X’ may be the result of an LRU or an LRU func-
tion failure. The Figure 12-3 illustrates all possible flags
and the responsible LRUs.
12.4 G1000 SYSTEM MESSAGE
ADVISORIES
This section describes various G1000 system message
advisories. Certain messages are issued due to an LRU or an
LRU function failure. Such messages are normally accom-
panied by a corresponding red ‘X’ annunciation as shown
previously in the G1000 System Annunciation section.
Figure 12-3 G1000 System Failure Annunciations
GDC 74A Air Data
Computer
GTX 33 Transponder
OR
GIA 63 Integrated
Avionics Units
GDC 74A Air Data
Computer
GEA 71 Engine
Airframe Unit
OR
GIA 63 Integrated
Avionics Unit
GIA 63 Integrated
Avionics Units
GRS 77 AHRS
OR
GMU 44
Magnetometer
GIA 63 Integrated
Avionics Units
GIA 63 Integrated
Avionics Units
NOTE: This Section provides information regard-
ing G1000 message advisories that may be dis-
played by the system. Knowledge of the aircraft,
systems, flight conditions, and other existing
operational priorities must be considered when
responding to a message. Always use sound
pilot judgment. The Aircraft Flight Manual takes
precedence over any conflicting guidance found
in this section.