Your One-Stop Shop For Quality Maintenance, Avionics & Interiors

Horizon Avionics & Maintenance in Alcoa, TN

Horizon Avionics, Inc provides aircraft maintenance and avionics services for GA piston singles to light jets, and everything in-between, including turboprops, experimentals, light-sport, and helicopters. We are based on Knoxville's, McGhee-Tyson Airport (TYS) at the foot of the Great Smoky Mountains in East Tennessee. With over 10,000 sq. feet of climate controlled hangar space and over 3,500 sq. feet of office space, Horizon Avionics & Maintenance has the facilities to complete any job, big or small.


We service all types of brands including:
  • ARC
  • Aspen Avionics
  • Avidyne
  • Bendix/King
  • Century Flight Systems
  • Garmin
  • Honeywell
  • L3
  • PS- Engineering
  • S-Tec
  • and many more!

Offering Wide Range of Avionics Services

Whether it be service, repairs, or installations, new equipment, or used, our FAA Approved Avionics Repair Station has the tools and experience to troubleshoot your problem and provide you with a quality repair, with minimum downtime. If you are looking for an equipment upgrade, WAAS GPS, new autopilot, or glass panel display, our installation team can assist with the simplest intercom installation, to a complete panel retrofit.
Man Holding the Handle — Aircraft Services in Alcoa, TN

Full Service Avionics Shop

Our full-service avionics shop provides troubleshooting and bench repair on Navigations, Communications, Radar, Autopilots, and more. We can also perform IFR tests and inspections, and RVSM inspections, using our state-of-the-art RVSM certified DPS-450 RVSM compliant digital pitot-static test set. Our installation center can help you with installations and upgrades. In addition, we also sell parts! For used equipment sales or for that latest Garmin handheld, please give us a call for the best price, or click on the avionics tab to see our current advertised specials