190-01007-C1
GTN Xi Part 23 AML STC Maintenance Manual
Rev. 1
Page 7-23
7.4 Enabled Features
Refer to Section 3.2.4 for guidance on enabling features.
7.4.1 Terrain Configuration and Checks (For Units with Terrain Alerting/TAWS Only)
Reconfigure terrain settings per the configuration checkout log. The terrain configuration settings are
located under the GTN Options menu.
7.4.1.1 Terrain System Check
While on the ground, power on the GTN Xi following normal power-up procedures. Power on the audio
panel.
NOTE
A 3D GPS position fix is required to conduct the check.
1. Navigate to the
Terrain
page from the Normal mode home page.
2. Touch the
Menu
key.
3. Touch the
Test Terrain
or
Test TAWS
key.
4. Wait until the Terrain Alerting/TAWS self-test completes (10-15 seconds) to hear the Terrain/
TAWS system status aural message.
The aural message “Terrain System Test OK” or “TAWS System Test OK” will be annunciated
if the Terrain/TAWS system is functioning properly
The aural message “Terrain System Failure” or “TAWS System Failure” will be annunciated if
the Terrain/TAWS system is NOT functioning properly. “Terrain Fail” or “TAWS FAIL” will
appear in amber on the screen
If no audio message is heard, then a fault exists within the audio system or associated wiring and the
Terrain/TAWS capability must be considered non-functional. Verify continuity of wiring from GTN Xi to
audio panel as specified in
GTN Xi Part 23 AMC STC Installation Manual
(P/N 190-01007-C0).
7.5 Configuration Module
Upon replacing a configuration module with a new configuration module unit, no further action is
required. Installation of a used configuration module is not recommended.
