
Garmin G1000 Cockpit Reference Guide for the Piper PA32
12-6
SECTION 12 – ANNUNCIATIONS
& ALERTS
A red ‘X’ may be the result of an LRU or an LRU function failure. The Figure 12-5 illustrates all possible flags and the
responsible LRUs.
Figure 12-5 G1000 System Failure Annunciations
GDC 74A Air Data
Computer
GTX 33 Transponder
OR
GIA 63/63W
Integrated Avionics
Units
GDC 74A Air Data
Computer
GEA 71 Engine
Airframe Unit
OR
GIA 63/63W
Integrated Avionics
Unit
GIA 63/63W
Integrated Avionics
Units
GRS 77 AHRS
OR
GMU 44
Magnetometer
GIA 63/63W
Integrated Avionics
Units
GIA 63/63W
Integrated Avionics
Units
System Annunciation Comment
Attitude and Heading Reference System is aligning.
Display system is not receiving attitude information from the AHRS.
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