190-01007-C1
GTN Xi Part 23 AML STC Maintenance Manual
Rev. 1
Page 5-16
5.3.1.5 GAD 42 Alerts
Table 5-7 GAD 42 Alert Troubleshooting Guide
5.3.1.6 Traffic Related Alerts
Table 5-8 Traffic Alert Troubleshooting Guide
TRANSPONDER 1 – ADS-
B is not transmitting
position.
The transponder has
insufficient data to support
ADS-B.
Ensure the aircraft has a clear view of
the sky.
Refer to the transponder installation
manual.
TRANSPONDER 2 - ADS-
B is not transmitting
position.
The transponder has
insufficient data to support
ADS-B.
Ensure the aircraft has a clear view of
the sky.
Refer to the transponder installation
manual.
Alert Text
Possible Cause
Corrective Action
GAD 42 - GAD 42 configuration
needs service.
GAD 42 not powered up.
Ensure that the GAD 42 is
receiving power and is
connected to ground.
GTN Xi is not receiving data
from GAD 42.
Verify wiring between the
GTN Xi and the GAD 42.
GAD 42 - GAD 42 needs
service.
GAD 42 is reporting an internal
failure.
Contact Garmin technical
support.
Alert Text
Possible Cause
Corrective Action
TRAFFIC - Traffic device is
inoperative or connection to
GTN is lost.
Traffic device is not powered up.
Ensure the traffic device is
receiving power and is
connected to ground.
Verify the wiring between the
GTN Xi and the traffic device.
Raw ARINC 429 data can be
viewed on the
GTN Diagnostics
> ARINC Inputs
page in
Configuration mode.
Traffic device has failed.
TRAFFIC - Traffic device battery
low. Traffic device user config
settings not saved.
The connected traffic system is
reporting that it has a low
battery.
Traffic system may require
service. Refer to external traffic
system maintenance manual for
additional details.
TRAFFIC - TAS/TCAS has been
in standby for more than
60 seconds.
GTN Xi is in the airborne state
and the traffic device has been
in standby for more than
60 seconds.
Troubleshoot the traffic system.
Refer to traffic system
installation manual.
Alert Text
Possible Cause
Corrective Action
