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Aviation Alerts and Advisories

GPS 175/GNX 375/GNC 355 main software version 3.11

PRODUCTS AFFECTED:

GPS 175, GNX 375, GNC 355, or GNC 355A installed under GPS 175/GNX 375/GNC 355 Part 23 AML STC SA02636SE are affected.

CERTIFICATION AUTHORIZATION:

AML STC SA02636SE

COMPLIANCE:

Recommended: Compliance with this STC Service Bulletin is recommended at the next scheduled maintenance interval.

PURPOSE:

This STC Service Bulletin provides notification of an update to STC SA02636SE GPS 175/GNX 375/GNC 355 Part 23 AML STC MDL Revision 10.

Major details of the update are:

  • Updated GPS 175/GNX 375/GNC 355 main software to v3.11. This software corrects the inaccuracies of traffic targets position and fixes software issues in the GNX 375 identified in Service Advisory 2157. The software update also fixes software issues in GPS 175 and GNC 355 units.

ASDN Service Bulletin 2180 Rev A