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.