The Duncan Aviation Avionics & Instrument shop in Lincoln, Nebraska, has a full inventory of Rockwell Collins TDR-94/-94D transponder internal parts to upgrade for ADS-B compliance.
The FAA’s ADS-B (Automatic Dependent Surveillance-Broadcast) deadline is fast approaching. In case you live under a rock, you know it is at midnight on December 31, 2019. To accommodate last-minute planners, we have expedited AOG service available.
Our technicians have completed just over 1,500 upgrades. Their efficient repair process allows for a one-day repair, provided the following steps are taken by the operator:
Call Duncan Aviation Customer Account Reps to schedule the unit into our shop.
800.562.6377 or 402.475.2611
Shipping and Receiving
4001 N Park Rd
Lincoln, NE 68500
We are also able to modify earlier transponders to the -501-502;-551-552 series, which will meet the ADS-B mandate for 2020 when the unit is properly installed and certified.
We are authorized to repair and service transponders with the Rockwell Collins part numbers of
To schedule your TDR 94/-94D transponder upgrade, contact a Duncan Aviation Customer Account Rep at +1 402.475.2611 or 800.562.6377.
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