Commercial, Embedded Avionics

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

By Juliet Van Wagenen | May 5, 2016
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Duncan Aviation MRO facility
Duncan Aviation MRO facility. Photo: Duncan Aviation

[Avionics Today 05-05-2016] Rockwell Collins has 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 Traffic Collision and Avoidance System (TCAS)-II-equipped business aircraft. The units can be upgraded and when professionally installed and certified will meet the upcoming Automatic Dependent Surveillance-Broadcast (ADS-B) mandate for 2020.

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.

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