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SYSTEM OVERVIEW
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.
G1000 SYSTEM ANNUNCIATIONS
When an LRU or an LRU function fails, a large red 'X' is typically displayed over the instrument experiencing
failed data (Figure 1-8 displays all possible flags and responsible LRUs). The G1000 System alerts the pilot
when backup paths are utilized by the LRUs. Upon G1000 power-up, certain instruments remain invalid as
equipment begins to initialize. All instruments should be operational within one minute of power-up. If any
instrument remains flagged, the G1000 should be serviced by a Garmin-authorized repair facility.
GEA 71
Engine
Airframe Unit
OR
GIA 63/63W
Integrated
Avionics Unit
GDC 74A
Air Data
Computer
10
Figure 1-7 G1000 Reversionary Mode (Failed PFD)
GIA 63/63W Integrated Avionics Units
GTX 33 Transponder OR GIA 63/63W
Integrated Avionics Units
Figure 1-8 G1000 System Failure Annunciations
Garmin G1000 Pilot's Guide for the Diamond DA40/40F
NAV1 and COM1 (provided by the
failed PFD) Flagged Invalid
DISPLAY BACKUP Button Manually Activates/
Deactivates Reversionary Mode on Both Displays
GDC 74A
Air Data
Computer
Database
Mismatch in the
PFD and MFD
GRS 77 AHRS
OR GMU 44
Magnetometer
GIA 63/63W
Integrated
Avionics Units
190-00592-06 Rev. A
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