Stevens Aviation Announces STC for NXT-600 Transponder



South Carolina-based Stevens Aviation has secured an approved model list (AML) STC for L3 Aviation’s NXT-600 mode-S transponder. This allows the company to provide ADS-B Out compliance for several aircraft models. The first aircraft to be upgraded with the installation was a Citation 650 with a non-integrated avionics suite, and the upgrade was done at Stevens Aviation’s Dayton, Ohio shop.

The NXT-600 mode-S transponder by ACSS (a joint venture between L3 and Thales) acts as a form-factor replacement for the RCZ-852 mode-S transponder and an alternative replacement for the Rockwell Colllins TDR-94D. According to Stevens Aviation, the complete ADS-B Out upgrade package includes the following: the STC and installation, two NXT-600 mode-S transponders, and one standalone NXG-900 GPS receiver, or customers can elect to retain the existing Universal WAAS FMS GPS or upgrade their Universal FMS to WAAS.

Stevens Aviation also operates facilities in Greenville, South Carolina, and Nashville, Tennessee, and offers 24/7 AOG and MRO services in “most locations” east of the Mississippi River.





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