(2023) Service Bulletin 23004 Rev B: Approval of G500/G600 TXi Main Software v3.50, GSU 75/GRS 79 AHRS Software v2.12, GMU 44B Software v2.01, and EIS sensor updates

PRODUCTS AFFECTED:

G500/G600 TXi systems installed using Part 23 AML STC SA02571SE are affected.

CERTIFICATION AUTHORIZATION: 

STC SA02571SE MDL Revision 26

COMPLIANCE:

Mandatory: For installations with the Integrated Standby System, STC Service Bulletin 23004 must be accomplished within 6 months or the next scheduled service interval; whichever occurs first.

Optional: For all installations without the Integrated Standby System, STC Service Bulletin 23004 may be incorporated at the owner’s discretion.

PURPOSE:

Major details of the update are:

• Added support for the GDL 60
  
• Updated TXi main software to version 3.50:
  

NOTE
If installed, GI 275 Software Version 2.60 (or later) and GTN™ Xi Software Version 20.30 (or later) is required before updating to TXi Software Version 3.50.

NOTE
Database sync routing is affected by this change. Systems with GTN™ (v6.72 or earlier) or GPS 175/GNC® 355/GNX™ 375 (v3.20 or earlier) interfaced to G500/G600 TXi (v3.50 or later) or GI 275 (v2.60 or later) no longer support database sync. Databases will need to be loaded onto each GTN and GPS 175/GNC 355/GNX 375 unit. This limitation will be fixed in future GTN and GPS 175/GNC 355/GNX 375 software versions.

• • Support for digitally signed databases
    
  • 100 Mbit transfer speed (on ground only) which improves the security and efficiency of the system
    
  • Added support for Dual-Cue flight director depiction
    
  • Heading units (True, Magnetic) will now synchronize with an interfaced GI 275
    
  • The MAG ANOM annunciation is now configurable between yellow, white, and disabled
    
  • PC-12 aircraft with fuel quantity displayed on the EIS will now allow for fuel temperature to be displayed as a user-selectable option
    
• Updated GSU 75/GRS 79 AHRS software to version 2.12:
  
  • Corrected some Mag Var and GPS aiding issues
    
  • Fixed AHRS Reset on Takeoff issue described in Garmin Service Alert 22033
    
• Updated GMU 44B Software Version 2.01 to improve efficiency with no functional changes
  

There are no new aircraft models being added to the STC SA02571SE.

WARRANTY INFORMATION:

For installations with the Integrated Standby System, this modification is warranty reimbursable with a deadline of July 31, 2023.

For all installations without the Integrated Standby System, this modification is not warranty reimbursable.