UH-60 Black Hawk in a hangar under the US and Arizona flags

Instruments & avionics in Show Low, Arizona

Castleberry Instruments & Avionics (CIA) repairs and replaces aircraft instruments and upgrades avionics for helicopter and fixed-wing operators, carrying on a Castleberry name that goes back to 1958.

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Who we are

Castleberry Instruments & Avionics

CIA is an aircraft instrument and avionics shop in Show Low, Arizona. We repair, overhaul and exchange the flight instruments and engine gauges that helicopter and fixed-wing operators rely on, and supply new instruments and avionics when replacing is the better call.

Our approach is simple: repair or replace. Every instrument gets an honest evaluation, and we recommend the solution that makes sense, whether that's a precision bench repair or an upgrade that future-proofs the cockpit.

We also support the Castleberry gyro line. Castleberry gyros are no longer in production, and we repair and overhaul the ones still flying.

5,000+: instruments on our capabilities list
FAA · EASA: Part 145 certified repair station
Show Low, AZ: ship-in instrument and avionics shop

Electric attitude indicator with its round wiring connector, on a blue workbench mat

Our heritage

From Corpus Christi to Show Low

Castleberry's story starts in 1958, when Don Castleberry opened a small aircraft instrument repair shop in Corpus Christi, Texas. The company grew in Austin, brought the AIM gyro line into the family, became part of B.F. Goodrich's aerospace business in 1986 and developed its own Castleberry gyros. In 2024 the shop moved from Austin to Show Low, Arizona, and the same crew carries the Castleberry name forward.

1958

Corpus Christi, Texas

Don Castleberry opens Aircraft Instrument Service, a small shop repairing general aviation instruments and autopilots.
1975

Austin, Texas

The company moves inland to Austin, after Hurricane Celia hit the Texas coast in 1970.
1986

B.F. Goodrich

Castleberry Instruments and Avionics, by then home to the AIM gyro line, becomes part of B.F. Goodrich's aerospace business.
1997

The Castleberry line

AIM gyro production returns to Austin, where Castleberry develops its 900 series electric gyros to replace most of the discontinued AIM 510 series.
2024

Show Low, Arizona

The shop and its crew move from Austin to Show Low, where we carry on Castleberry instrument work and the Castleberry gyro line, now with new instruments and avionics too.

Certifications

Certified for safety and quality

We're proud to back our commitment to safety and quality with some of the highest certifications in the aviation industry. Our team works with precision and care under a full suite of credentials, giving you peace of mind every time your aircraft takes off.

FAA Part 145 certified repair station

Our Unlimited Rating shows our team can handle a vast and versatile range of components.
Request a copy of our FAA Part 145 certificate
EASA certified

Lets us support our international flight operators with airworthiness solutions.
Request a copy of our EASA certificate
FAA-PMA certified

Our capability to manufacture and supply high-quality, approved modification and replacement parts.
Request a copy of our FAA-PMA approval
CAGE code equipped

Fully registered and ready to support government and law enforcement fleet contracts.
Request our CAGE code
Comprehensive capabilities listing

An extensive, active catalog of the instruments and avionics we're fully certified to service and upgrade.
Request the list

What we do

Repair or replace, and the Castleberry line

Every instrument starts with an evaluation on the bench. We talk through what we found and recommend whether to repair or replace it, and you choose how to proceed.

By instrument type: Gyros · Pressure Gauges · All services

Repair and overhaul

A repair corrects a specific fault. An overhaul restores the complete instrument, including wear that hasn't shown up in the panel yet. Engine gauges get the same precision bench work as flight instruments.
Repairs/Overhauls
Sales and upgrades

When replacing makes more sense, we supply new instruments and complete avionics upgrades from Garmin, Mid-Continent, Sigma-Tek and other trusted manufacturers.
Sales & Upgrades
Exchanges

An exchange can shorten the time an aircraft waits on an instrument. What's available depends on the part number, so send it and we'll check.
Exchanges
Castleberry gyros

Repair and overhaul for every model in the last Castleberry brochure: attitude indicators, flight director gyros, the 200 series directional gyro and its accessories.
Castleberry gyros

Who we work with

Helicopter and fixed-wing operators

One instrument and avionics shop for fleets, agencies and flight schools, and for owners with a single aircraft.

Fleet & EMS operators

Helicopter and fixed-wing instruments from one shop, including Castleberry gyros built for helicopter vibration and NVIS lighting, with exchange options when downtime matters.
Government & law enforcement

FAA Part 145 certified and CAGE code equipped, ready to support agency fleets and their contracts.
Flight schools

Training aircraft fly hard and often. Repair or overhaul keeps their instruments in service without buying new, and an exchange can keep an aircraft on the schedule.
Private aircraft owners

One instrument from your own aircraft gets a full bench evaluation, and we explain the options before you decide.

Classic high-wing airplanes parked in rows with camping tents beside them on the grass at Oshkosh — Where our instruments fly Classic high-wings camped at Oshkosh are the kind of fixed-wing aircraft our instruments fly in, alongside helicopters from the Robinson R44 to the UH-60 Black Hawk.

The Castleberry family · castleberryaero.com

Our sister company: Castleberry Aviation Services (CAS)

CIA keeps the instruments and avionics flying. CAS brings the same Castleberry craftsmanship to the rest of the aircraft, from custom paint to rotor blades.

Visit castleberryaero.com

Custom aircraft paint & accessories

One-of-a-kind liveries and custom-painted accessories, finished in the CAS paint hangar.
Rotor blade paint

Rotor blades refinished and painted, from standard finishes to custom artwork.
Specialized rotor blade repair

Specialized repair that returns rotor blades to service.