Garmin G1000 NXi Supplemental Maintenance Manual page 78

Invalid Data Field
ATTITUDE FAIL
G1000 Supplemental Maintenance Manual
Textron Nav III Series
190-02128-04
Associate
d LRU(s)
•
Ensure that a cell phone or a device using cell phone
technology is not turned on (even in a monitoring state) in
the cabin.
•
Cycle GSU 75 power to restart initialization.
•
Ensure GSU 75 connecter is secure and proper wire
harness strain relief is provided.
•
Ensure the GSU 75is fastened down tightly in its mounting
rack and that the mounting rack is not loose (CAUTION -
do not loosen the mounting rack hardware to the airframe
shelf or the aircraft will need to be re-leveled and the
PITCH/ROLL OFFSET procedure performed).
•
Ensure GPS has acquired at least four satellites, has a 3D
GSU 75
navigation solution, and a DOP of less than 5.0. This is
particularly important for an ATTITUDE FAIL that appears
(if installed)
during ground operation only.
•
Perform an Engine Run-Up Test to check if engine
vibration is causing the GSU 75 to go offline.
•
Load configuration files to the PFD, MFD, GIA1, and GIA2.
•
Calibrate the GSU 75 (Pitch/Roll Offset and Magnetometer
Calibration).
•
Replace GSU 75.
✓
If problem persists replace GSU 75 configuration
module.
✓
Contact Garmin Aviation Product Support if condition
continues after replacing the GSU 75 and config
module for additional assistance
Solution
.
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