Duncan Aviation Resumes Rockwell Collins TDR-94/TDR-94D Modifications

Duncan Aviation’s Avionics Component Shop and Rockwell Collins are the only shops that can modify the TDR-94/TDR-94D to meet the FAA’s ADS-B mandate. Click image for high-res download.

LINCOLN, NEB — Duncan Aviation is pleased to announce that it has resumed modifiying the Rockwell Collins TDR-94/TDR-94D at its Lincoln, Nebraska, facility. On Tuesday, November 13, 2018, Rockwell Collins announced that it, too, had resumed modifying the transponders.

With the modification to the transponder, which can be performed only by Duncan Aviation’s Avionics Component Shop or by Rockwell Collins, the TDR-94/TDR-94D meets the FAA’s mandate requiring aircraft to comply with the DO-260B standard for Automatic Dependent Surveillance-Out (ADS-B Out) by January 1, 2020.

Duncan Aviation had briefly suspended modifications to the TDR-94/94D at its Lincoln facility while Rockwell Collins developed a software fix to address a minor TSO-non compliancecommunicated on October 25, 2018.. On November 13, Rockwell Collins received an FAA waiver for the TSO non-compliance and plans to release a Service Bulletin for the software fix by the end of December. For additional information, please reference Rockwell Collins Service Information Letter 523-0825796.

“We’d like to reassure our customers that the recent software issue with the TDR-94/TDR-94D has no flight deck effect and in no way affects flight safety. The fix  will be an optional service bulletin that Duncan Aviation can perform during a scheduled maintenance event or as a quick turn in our Avionics Component Shop. There is no reason to put down an aircraft for this modification,” says Vice President of Component Services, Parts Sales and Satellites Mark Cote.

Although the software issue is a completely separate modification from the ADS-B mod, the Avionics Component Shop at Duncan Aviation’s Lincoln, Nebraska, facility is able to perform both—the ADS-B modification and the software fix—on the Rockwell Collins TDR-94/TDR-94D transponders.

“Duncan Aviation never stopped upgrading aircraft for ADS-B because we had a rotable pool,” says Manager of Satellite Operations Matt Nelson. “Our other two MRO facilities (Battle Creek, Michigan, and Provo, Utah) and our 27 Satellite Avionics Shops and workaway stations are able to facilitate this software upgrade in conjunction with our Avionics Component Shop in Lincoln, Nebraska. As of Tuesday, November 13, the Avionics Shop in Lincoln again began accepting Rockwell Collins TDR-94/TDR-94D transponders for modification for ADS-B.”

Visit www.DuncanAviation.aero/locations for contact and scheduling information for Duncan Aviation’s three main facilities and any of the 27 Satellite Avionics Shops strategically located at business aviation airports across the United States.

About Duncan Aviation

Duncan Aviation is an aircraft service provider supporting the aviation needs of business aircraft operators, government agencies, and other aircraft service providers. Services include major and minor airframe inspections, engine maintenance, major retrofits for cabin and cockpit avionics systems, full paint and interior services, engineering and certification services, fabrication and manufacturing 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 scheduled 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 https://www.DuncanAviation.aero/services