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Aviation Alerts and Advisories

GI 275 Multi-function Instrument Software Version 2.04


GI 275 Multi-function Instrument installed under the GI 275 Part 23 AML STC SA02658SE are affected.




Optional: This STC Service Bulletin may be incorporated at the owner’s discretion and is not warranty reimbursable.


This STC Service Bulletin provides notification of STC SA02658SE Master Drawing List revision 3 update.

Updates include:

  • Clarifications, improvements, and corrections to the STC Installation Manual.
  • Added a configuration to disable Course Selection output as well as a configuration to receive Selected Course from the Navigator or an interfaced EFIS when the GI 275 is a secondary navigation indicator.
  • Added improvements for installations in aircraft panels with higher vibration.
  • Corrected the red band airspeed marking for advanced Vne configurations.
  • Corrected Database system message on CDI only configurations.
  • Corrected ADC system message when installed with TXi that has RVSM enabled.
  • Corrected the flight director display for the Century 2000, IV, and 41 Autopilots. Refer to Garmin Service Letter 2054.
  • Additional eligibility of the Citation 525 aircraft models to install a GI 275 to serve as a secondary HSI or as a backup display for navigational functions.

ASDN Service Bulletin 2064 Rev A