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Aviation Alerts and Advisories

G500/G600 TXi GDU Software Version 3.22, Expansion of EIS Features and Data, and other misc additions


G500/G600 TXi PFD/MFD/EIS display systems installed using Approved Model List (AML) Supplemental Type Certificate (STC) SA02571SE are affected.


STC SA02571SE MDL Revision 15


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 an update to the AML STC SA02571SE Master Drawing List (MDL) Revision 15.

MDL revision 15 includes the following changes:

  • New EIS gauge layout and interfaces for twin turbine EIS to support eligible aircraft models including the Textron Aviation Inc. King Air 90 series and Textron Aviation Inc. Model 425
  • Approved GDU software v3.22
  • Expanded piston EIS interfaces

Piper PA-46-500TP aircraft are held at the prior STC revision until a model specific update is completed.

G500/G600 TXi software v3.22 includes the following changes:

  • Expansion of EIS Features and Data
  • Twin Engine Turbine EIS gauges and functions
  • Added installation approval for De-Ice pressure sensors for piston EIS
  • Added pilot-selectable G-Meter to the PFD
  • MFD remote control of a GTN NAV/COMM radio frequency

ASDN Service Bulletin 2165 Rev A