This bulletin is applicable to GTX 3000 units with software version 3.20 or previous software versions not installed in a Garmin Integrated Flight Deck system (G5000, G3000, G2000, G1000, G1000H, G950, G900X, Cirrus Perspective™, and Embraer Prodigy® Integrated Flight Deck Systems). The GTX 3000 current software version can be retrieved using the GTX install tool.
Optional: This Service Bulletin may be incorporated at the owner’s discretion and is not warranty reimbursable.
This Service Bulletin incorporates new unit Software Version 3.30 for GTX 3000 units. Software Version 3.30 incorporates the following functionality:
- Improved the ARINC 735B TCAS interface to reduce bus dropouts when switching the active transponder.
- Added the GNS serial format to accept GPS and height above terrain data from GNS 400W/500W Series devices.
- Added Transponder Format 3 serial format to automatically switch the transponder to standby when input is lost.
- Added the capability to receive GPS, ADS-B Out, and Enhanced Surveillance parameters from Universal FMS devices (UNS-1Ew, UNS-1Espw, UNS-1Fw, and UNS-1Lw).