PRODUCTS AFFECTED:
GTX 335/335R/345/345R (GTX 3X5(R)) units installed using Part 27 AML STC SR02124SE are affected.
CERTIFICATION AUTHORIZATION:
AML STC SR02124SE
COMPLIANCE:
Recommended: Garmin recommends the incorporation of this Service Bulletin at the next scheduled service interval.
PURPOSE:
This STC Service Bulletin provides notification of an update to STC SR02124SE, GTX 3X5(R) Part 27 AML STC, MDL Revision 2.
GTX 3X5(R) main software 2.54 provides the following:
- Added the ability to accept the magnetic heading from a traffic source to calculate true heading for ADS-B
- Added automatic enablement of the flight and trip timers whenever the squat switch is inactive for rotorcraft using a squat switch
- Added ability to connect the GTS via HSDB for GTS 8×0 v4.12, GTS 8×5 v3.12
- Added text displays NO COMM and EMERGENCY under 7600 and 7700 Squawk codes
- Added Traffic Audio Cancel/Update and Traffic Audio Mute discretes
- Fixed an issue that incorrectly decode aircraft length and width values
- Added GNS format to accept GPS and height above terrain data from a GNS 400W/500W Series device (GTX 335 only)
- Improved Air/Ground determination logic
- Improved traffic alerting when on ground or in an airport environment
- Updated ADS-B out encoding to improve position accuracy
- Fixed altitude reporting errors when using pressure altitude from a GAE
Other major details of the update include:
- Updated GTX 3X5 ADS-B software to v3.13
- Fixes an issue where some ADS-B traffic intruders may not be displayed when over 200 ADS-B intruders are within range
NOTE
Active TCAS surveillance is not affected by this issue.
- Updated GTX 3X5 GPS software to v7.0
- Added new GTX 3X5 NV transponder models
- Added new GTX 345(R) part numbers
- Approval of G500H TXi interface
- Approval of GTS 8XX interface over HSDB
- Approval of passive GPS splitter interface for VFR only helicopters
- Added new rotorcraft models to the AML
MDL Revision 2 includes an expansion to the AML. Under this update, the following models were added to STC SR02124SE.
Rotorcraft Make (TCDS Holder) – Airbus Helicopters Deutschland GmbH
Rotorcraft Model Designation – EC135P3, EC135T3
TCDS number – H88EU