GI 275 Multi-function Instrument systems installed under the GI 275 Part 23 AML STC SA02658SE are affected.
STC SA02658SE MDL Revision 9
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 9 update which includes GI 275 Software Version 2.21.
GI 275 Software Version 2.21 includes a fix for discrete outputs with 3rd party analog autopilot interfaces.