G950 System Annunciations - Garmin G950 Pilot's Manual

SYSTEM OVERVIEW
If the system fails to detect a display problem, reversionary mode may be manually activated by pressing the
display backup button installed in the cockpit. Pressing this button again deactivates reversionary mode.

G950 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). Upon G950 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 G950 should be serviced by a Garmin-authorized
repair facility.
GIA 63W Integrated
Avionics Units
GEA 71 Engine
Airframe Unit
OR
GIA 63W Integrated
Avionics Unit
GDC 74A Air
Data Computer
10
Figure 1-7 G950 Reversionary Mode (Failed PFD)
Figure 1-8 G950 System Failure Annunciations
Garmin G950 Pilot's Guide for the Pilatus PC-6
NAV1 and COM1 (provided by the
failed PFD) Flagged Invalid
GIA 63W Integrated
Avionics Units
GDC 74A Air
Data Computer
GRS 77 AHRS
OR
GMU 44
Magnetometer
GIA 63W Integrated
Avionics Units
GTX 33 Transponder
OR
GIA 63W Integrated
Avionics Units
190-00870-02 Rev. A