The Duncan Aviation avionics instrument shop is now able to provide operators with TDR-94/TDR-94D transponder service that includes same-day evaluation and three-day turntimes, with AOG options available when needed.
Our technicians, having serviced the -003 TDR-94 units for the last several years, have developed a very efficient repair process that will even allow a one-day repair, provided the following steps are taken by the operator:
800.562.6377 or 402.475.2611
This gives us time to ensure we have parts on hand when the transponder arrives.
Shipping and Receiving
4001 N Park Rd
Lincoln, NE 68500
We are also able to modify earlier transponders to the -500-501 series, which will meet the ADS-B mandate for 2020 when the unit is properly installed and certified.
The Rockwell Collins TDR-94/TDR-94D transponder is a solid-state, crystal-controlled receiver/transmitter specifically designed for TCAS-II-equipped business aircraft. We are authorized 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.