Ahrs/Adc Backup Path Test - Garmin Diamond DA 40 Maintenance Manual

8.4

AHRS/ADC Backup Path Test

Step
Secondary AHRS/ADC path check:
1. Remove power from PFD.
2. Remove power from GIA2.
3. Check for desired results.
4. Restore power to the PFD and GIA2.
G1000/DA 40 System Maintenance Manual
190-00303-03
Desired Result
The following shall occur on the MFD when power is
removed from the PFD and GIA2:
MFD switches to reversion mode.
Attitude and Heading remain valid from AHRS.
Airspeed, Altitude, Vertical Speed, and OAT remain
valid from Air Data Computer.
Engine Instrumentation flags invalid.
All COM & NAV fields flag invalid.
Page 8-3
Revision 6