Horizon Avionics Inc.

Horizon Avionics Inc. is an avionics and maintenance shop at 2445 E General Aviation Drive in Alcoa, Tennessee. The company has been in business for more than 30 years.

Aircraft and avionics

Horizon is an FAA certified avionics repair station and an authorized dealer for Garmin, Aspen Avionics, Avidyne and Genesys/S-Tec. The shop installs glass panel upgrades for certificated aircraft, including the Garmin G3X Touch, Garmin G5 and GI 275, R.C. Allen RCA2610 and Armstrong F.K.9 instruments, replacing vacuum-driven gyros.

Services

Horizon is also a fully staffed maintenance provider for piston general aviation aircraft. As a Cirrus Authorized Service Center it handles warranty repairs, and it offers annual and 100 hour inspections, oil changes and general repairs.

Cirrus services

Cirrus Aircraft Authorized Service Center.

• Maintenance for Cirrus SR20, SR22 and SR22T aircraft
• Full avionics shop
• Garmin avionics service
• Garmin dealer
• Avidyne avionics service
• Ice protection system maintenance
• Air conditioning service

Source: Cirrus Aircraft service center locator (October 2026) and the company’s website.