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Aviation Alerts and Advisories

GI 275 Multi-Function Instrument Software Version v2.41 Update


Aircraft modified with the GI 275 Multi-Function Instrument AML STC SA02658SE, MDL Revision 12 or earlier with a single pitot-static system that are equipped with dual GI 275 ADAHRS (Air Data & Attitude Heading Reference System) products [011-04489-10, 011-04489-20] installed as the only means to determine aircraft attitude.


STC SA02658SE MDL Revision 13


Mandatory: This STC Service Bulletin must be incorporated for affected installations. This service bulletin is recommended for all other installations.


This modification is only warranty reimbursable for installations described in the Products Affected section.
Warranty reimbursement deadline is February 28, 2022.
Note: Installations completed after September 24, 2021 are not eligible for warranty reimbursement.


This STC Service Bulletin provides notification of STC SA02658SE Master Drawing List Revision 13 update which includes GI 275 Expansion Board Software improvement to provide additional robustness for the GI 275 ADAHRS solution.

ASDN Service Bulletin 2183 Rev A