Figure 7-2 - Pitch/Roll Offset Calibration In Progress; Figure 7-3 - Pitch/Roll Offset Completion Status - Garmin G3X Touch Maintenance Manual

NOTE
The GSU 25D pitch/roll offset procedure has a 30 second countdown timer that resets if the aircraft
moves.
6. When the calibration has completed "Success" or "Failure" will be displayed; select the DONE
softkey to return to the ADAHRS Calibration screen.
NOTE
Magnetometer Calibration must be completed after each ADAHRS pitch/roll offset calibration.
NOTE
The subsequent ADAHRS and magnetometer procedures are carried out with the aircraft engine
running. Start and operate the aircraft engines in accordance with Pilot's Operating Handbook (POH) or
Aircraft Flight Manual (AFM).
7.2.1.2 Magnetometer Calibration
NOTE
The Pitch/Roll Offset Compensation procedure in section 7.2.1.1 must be completed prior to performing
this procedure.
Use a compass rose or calibrated magnetic sight compass to calibrate the magnetometer. Ensure that
the aircraft and compass are located away from magnetic interference sources including buildings. The
accuracy of the ADAHRS cannot be guaranteed if the calibration is not performed in an area that is free
of metallic structure or objects.
With the aircraft stationary, initiate the magnetometer calibration procedure as follows:
1. Start the aircraft engine per the POH/AFM.
2. Taxi the aircraft to a desired calibration area.
Maintenance Manual
G3X Touch EFIS Part 23 AML STC
Figure 7-2 – Pitch/Roll Offset Calibration in Progress
Figure 7-3 – Pitch/Roll Offset Completion Status
Page 79
190-02472-02
Revision 2