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G1000 System Maintenance Manual
Page 8-5
190-00903-00
Rev.
A
8.4
AHRS/AIR DATA BACKUP PATH TEST
TEST DESIRED
RESULT
Secondary AHRS/ADC path check:
1.
Remove power from PFD1.
2.
Remove power from GIA2.
3.
Check for desired results.
4.
Restore power to the PFD and GIA2.
The following should occur on the MFD when power
is removed from the PFD1 and GIA2:
a.
MFD switches to reversion mode.
b.
Attitude and Heading remain valid from AHRS.
c.
Airspeed, Altitude, Vertical Speed, and OAT
remain valid from Air Data Computer.
d.
Engine Instrumentation flags invalid.
e.
All COM & NAV fields flag invalid.
Secondary AHRS/ADC path check:
1.
Remove power from PFD2.
2.
Remove power from GIA2.
3.
Check for desired results.
4.
Restore power to the PFD and GIA2.
The following should occur on the MFD when power
is removed from the PFD2 and GIA2:
a.
MFD switches to reversion mode.
b.
Attitude and Heading remain valid from AHRS.
c.
Airspeed, Altitude, Vertical Speed, and OAT
remain valid from Air Data Computer.
d.
Engine Instrumentation flags invalid.
e.
All COM & NAV fields flag invalid.
8.5 FLIGHT
TEST
A flight test is recommended after the installation is complete to ensure satisfactory performance
of G1000.
8.6
VHF COM TESTS
Verify the communications capability on both the high and low ends of the VHF COM spectrum.
It may be required by the governing regulatory agency to verify operation of the COM
transmitter and receiver at the extents of the ground facility’s service volume (FAA AC 23-8A).
