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(2012) Service Bulletin 1203: GTN 650 and GTN 750 Notification of Mod Level 1


COMPLIANCE

Mandatory

PURPOSE

Some GTN 650 and GTN 750 Navigation Systems require either upgrading to Mod Level 1 to improve the reliability of the VHF navigation receiver, or marking of Mod Level 1 on the serial tag to indicate the previously upgraded, but unmarked Mod Level status.

PRODUCTS AFFECTED

All GTN 650/750 Units that have not been verified as having been upgraded to Mod 1.

DESCRIPTION

Service Bulletin 1203 provides instructions to inspect the serial number of the GTN 650/750 to determine its disposition as related to the Mod Level 1 requirement.


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