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Aviation Alerts and Advisories

GTN Xi COM/NAV Radios

PRODUCTS AFFECTED:

GTN 6XX/7XX Xi products with main software version 20.11 that are interfaced to a Garmin GTX 33/330(ES) using the RS-232 GTX Mode S format are affected.

COMPLIANCE:

Recommended: Compliance with this service bulletin is recommended at the next scheduled maintenance opportunity.

PURPOSE:

Pilots flying or taxiing along a 180-degree true track may see the GTN Xi COM/NAV radios Red X.

NOTE
The GTN Xi COM/NAV radios still transmit and receive on their tuned frequencies but are not able to be controlled from the GTN Xi display.

ASDN Service Bulletin 2117 Rev B