Avionics
Duncan Performs Its First ADS-B Upgrade on G150
The work was performed in seven business days under an STC that allows Duncan to retain the original avionics system.

Duncan Aviation has performed its first ADS-B upgrade on a Gulfstream G150. The company’s satellite avionics shop in Kansas City, Missouri, upgraded the business jet’s Rockwell Collins TDR-94Ds, installed an ADS-B fail annunciator and wired the interface between the transponders and GPS receivers using the AML-STC for Part 25 aircraft developed by CMD Flight Solutions.