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About Thom Duncan Avionics LLC

Thom Duncan Avionics is an FAA Repair Station (CRS #7D8R648D), serving general aviation from Winchester Municipal Airport with disciplined technical work and transparent results.

We specialize in avionics installation, troubleshooting, and IFR system certification for aircraft of all types. Our technicians train continuously, follow structured procedures, and document every job. Your aircraft is never a training platform; it’s a finished product.

We are a multi-year AEA Training Excellence Award recipient — a credential earned by shops with audited training programs and repeatable quality standards. That means you get consistent results, not variable outcomes.

Pilots choose us because we solve problems clearly, communicate often, and deliver work that stays fixed. If you value technical competence and workmanship that holds up in the air, you’re in the right place.

FAA Repair Station serving Tennessee and surrounding states.

A proud member of the Aircraft Electronics Association.

Central time zone.

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Thom Duncan Avionics
Winchester Airport KBGF

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Thom Duncan Avionics LLC 574 Aviation Dr Winchester, TN 37398

Phone: (833) 838-6226

info@thomduncanavionics.com

Monday - Friday: 9:00am - 4:30pm
Saturday - Sunday: Closed

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