GWX 70 FPGA Version 1.2 for Non-GX000 Integrated Flight Deck Installations Only
All GWX 70 Weather Radar systems with FPGA version 1.1 (or earlier) and interfaced to a G500, G600, GTN 7XX, GMX 200, or other 3rd party flight display systems are affected by this bulletin.
The current GWX 70 FPGA version can be viewed using the GWX 70 Install Tool (refer to the MODIFICATION INSTRUCTIONS section of this bulletin) or on the display of G500, G600, and GTN 7XX units.
GWX 70 FPGA Version 1.2 fixes the potential GWX 70 power amplifier failure problem described in Garmin Service Advisory 1433.
This bulletin also includes instructions for loading GWX 70 Software Version 2.20, previously covered in Garmin Software Service Bulletin 1410.
This modification consists of accessing the Dealer Resource Center of the Garmin website and uploading GWX 70 system software version 2.20 and new GWX 70 FPGA version 1.2 to the GWX 70.
Recommended. Garmin recommends the incorporation of this Service Bulletin and the next scheduled service interval.
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