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Aviation Alerts and Advisories

Approval of G500/G600 TXi Software Version 3.12


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


Optional. This service bulletin is optional and may be incorporated at the owner’s discretion.


AML STC SA02571SE , Master Drawing List Rev 11 includes the following:

  • Update TXi software from v3.03 to v3.12
  • Update AHRS software from v2.08 to v2.09
  • Update ADC software from v2.07 to v2.08
  • Update GEA 110 software from v2.10 to v2.20
  • Update GEA 71B Enhanced software from v2.21 to v2.60
  • Hardware updates to GEA 110 and GEA 71B Enhanced
  • DFC 90 interface approval (Cirrus SR20/22 only)
  • Garmin GI 275 interface and standby instrument approval
  • GMU 44B installation and interface approval
  • GNC 355 interface approval
  • Additional EIS sensor interface approvals
  • Add Piper PA-46R-350T (TCDS A25SO) to the AML

The TXi G500/G600 software v3.12 update includes the following changes:

  • Addition of GDU 1060 MFD/EIS layout
  • Addition of MFD engine page
  • Update CDI control to allow localizer autoswitch
  • Expansion of turbine EIS features including additional OEM engine sensor interfaces:
    • Add fuel quantity indication for supported single engine turbine aircraft
    • Turboprop Shaft Horsepower readout
    • Eleven-gauge turbine EIS Layout
    • Rudder trim gauge
    • Single and Twin Piston percent Horsepower support
    • Switched fuel quantity gauges
    • Vacuum pressure gauge
    • Fuel imbalance caution message
    • Digital display readouts for bar gauges
    • Cirrus EIS display layout
    • Installer deletion of exceedances
    • Mach field on PFD
  • Expansion of engine and tach timers
    • For new installations, tach time can be used to match the tach time of the removed tachometer
    • For currently fielded installations upgrading to TXi software v3.12, the following formula is recommended to establish the initial value:
      • Tach hours at time of TXi software v3.12 upgrade = Tach Hours at time of original TXi
      • EIS installation + TXi Flight Hours since time of installation.

ASDN Service Bulletin 20118 Rev B