Duncan Aviation Authorized to Service Rockwell Collins TDR-94/TDR-94D Transponders

LINCOLN, NEB. — Rockwell Collins recently approved Duncan Aviation as an authorized service provider for repair, service and modification of its TDR-94 and TDR-94D transponders. The Rockwell Collins TDR-94D transponder is a solid-state, crystal-controlled receiver/transmitter specifically designed for TCAS-II-equipped business aircraft. The units can be upgraded and when professionally installed and certified will meet the upcoming ADS-B mandate for 2020.

“Duncan Aviation has been servicing the -003 TDR-94 transponders for several years and is able to offer customers excellent turntimes,” says Kevin Miesbach, Components/OEM New Business Development Manager with Duncan Aviation. “We can offer the repair, installations and upgrade modifications of these units at our main facility in Lincoln, Nebraska, as well as through our satellite avionics facilities located throughout the United States.”

The new agreement allows Duncan Aviation to repair and service transponders with the Rockwell Collins part numbers of 622-9352-002 through -008; -108; -207; -308-311; -408-411; -500-501 and 622-9210-002 through -008; -108; -207; -308-311; -408-411; -500-501. The company will also be able to modify earlier transponders to the -500-501 series, which will meet the ADS-B mandate when properly installed and certified. Duncan Aviation’s authorization is for transponders from aircraft in North and South America, Europe, the Middle East and Africa. The agreement with Rockwell Collins is exclusive and Duncan Aviation will be the only non-OEM facility authorized for the repair and upgrade.

“We are pleased to work with Rockwell Collins on this agreement and look forward to supporting our mutual customers,” Miesbach says. “Duncan Aviation and Rockwell Collins have a longstanding relationship based on trust and collaboration in an effort to provide the highest level of quality and customer service to operators. One of the benefits for customers is that these additional capabilities allow Duncan Aviation installation facilities to support customers with the entire modification process of these units from component modification to system installation and certification.”

Duncan Aviation installations can be performed at the three main full-service locations in Lincoln, Neb., Battle Creek, Mich., Provo, Utah as well as at the 20+ satellite avionics facilities Duncan Aviation has located at high-traffic corporate jet airports throughout the United States.

To learn more about Duncan Aviation, visit or stop by Duncan Aviation at booth #404 at NBAA Maintenance Management Conference May 3-5 in Kansas City, Missouri; or at stand #G089 at EBACE 2016 held May 22-24 at Palexpo Geneva in Geneva, Switzerland. Visit to see Duncan Aviation EBACE attendees and show announcements.

About Duncan Aviation

Duncan Aviation is an aircraft service provider supporting the aviation needs of government and business operators and other service providers. Services include major and minor airframe inspections, engine maintenance, major retrofits for cabin and cockpit systems, full paint and interior services, and preowned aircraft sales and acquisitions. Duncan Aviation also has international aircraft components solutions experts available 24/7/365 at +1 402.475.4125 who can handle any aircraft system problem with immediate exchanges, rotables, loaners or avionics/instrument/accessory repairs and overhauls. Complete service facilities are located in Battle Creek, Michigan; Lincoln, Nebraska; and Provo, Utah. We also have dozens of other facilities strategically located throughout the United States to provide customers with regional support and the quickest response possible to avionics, engine and airframe Aircraft On Ground (AOG) situations.

For more information about any of Duncan Aviation’s services, call +1 402.475.2611 or visit