Since 1977 Air Dallas Instruments has grown into a well-respected facility, doing work for companies worldwide. Whether our customers are individuals, a corporation or an airline, we treat everyone with respect. Our repair facility is located in Lewisville, TX. and our Hangar is located at North Texas Regional Airport in Denison, TX. Both facilities are just north of the Dallas/Ft. Worth metroplex. We are the only authorized instrument manufacturer service center in the United States for SATHOM, Thommen AG, and one of only two authorized manufacturer service centers in the United States for Astronautics Corp. We’re also an authorized instrument manufacturer service center for Bombardier Learjet, Cirrus Aircraft Corp., Gulfstream, Honeywell/Bendix/King, Insco, Rochester Instruments, Lewis, MD Helicopter and Ultra Electronic. We are FAA approved repair station under number VE1R555K Full class I, II, III, IV for instruments, Avionics, Installs and limited accessories. EASA approved repair station under number EASA 145.4077 AS9110C & ISO 9001:2015 Certified under number FM 614444 Test capabilities for ARINC 429, 561, 568, 571, 575, and RS422 (CSDB) In House testing of NVG lighting systems.