Castleberry Instruments & Avionics (CIA) home Call (928) 537-8400 Request a quote

Castleberry Instruments & Avionics · Show Low, Arizona

Aircraft instrument repair & avionics upgrades. Since 1958.

Repair or replace: we find the right solution for every instrument, from precision bench repair and overhaul to new instruments and avionics that modernize the cockpit.

Request a quote Call (928) 537-8400
  • 5,000+ instruments on our capabilities list
  • Repair or replace the right solution for each instrument
  • FAA Part 145 · EASA certified repair station

Who we serve

For aircraft that can't sit idle

CIA is a certified instrument and avionics shop in Show Low, Arizona. Fleet and EMS operators, government agencies and flight schools count on us to keep their aircraft flying, and private owners get the same care.

More about CIA
  • Red and white air ambulance helicopter flying low over trees, with city towers behind

    When missions can't wait

    Fleet & EMS operators

    Repair, overhaul or replacement across rotor and fixed-wing fleets, with exchange options when an aircraft can't wait for its own instrument.

  • Sheriff's helicopter with a camera turret and searchlight, in flight against a blue sky

    CAGE code equipped

    Government & law enforcement

    FAA Part 145 certified and registered for government work, ready to support agency fleets and their contracts.

  • Instructor and student pilot side by side in a training airplane, seen from the back seat

    High-hour trainers

    Flight schools

    Training aircraft fly hard and often. Repair, overhaul and upgrade options keep every trainer on the schedule.

  • Owner-pilot checking the engine cowling of a red and white Cessna on the ramp

    One aircraft at a time

    Private aircraft owners

    Your own aircraft gets the same bench evaluation, and a straight answer on whether to repair or replace.

Services & capabilities

Repair or replace, all under one roof

Start with your instrument or the service you need. We repair and overhaul thousands of flight instruments and engine gauges, and supply new instruments and avionics when replacing is the better call.

Explore all services
  • Round-dial flight instruments in a Robinson R44 Raven II helicopter panel

    Repair or overhaul

    Repairs/Overhauls

    Precision bench repair and complete overhaul for flight instruments and engine gauges: a cost-effective way to keep the instruments you already own in service.

    • Repair: find the fault and fix it
    • Overhaul: restore the whole instrument
  • Castleberry electric directional gyro: compass card, airplane symbol and heading bug

    Gyro instruments

    Gyros

    Attitude indicators, DGs, HSIs and flight directors, including Castleberry gyros.

  • Aircraft altimeter with a barometric setting window on the shop bench

    Pressure instruments

    Pressure Gauges

    Altimeters, airspeed indicators and vertical speed indicators.

  • Pilot and passenger in a helicopter with Garmin glass-cockpit displays, flying over farmland

    Replace and upgrade

    Sales & Upgrades

    New instruments and avionics upgrades from Garmin, Mid-Continent, Sigma-Tek and more.

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

    Show Low, Arizona

    About Us

    Our Texas roots since 1958, our certifications and the Castleberry family of companies.

  • Black Hawk releasing a water drop against a blue sky

    Photos

    Media

    The shop, the Castleberry gyro line and our sister company at work.

  • A gyro stenciled Handle like eggs in its mount on the test bench

    When downtime matters

    Exchanges

    Share your part number and we'll walk you through the exchange options.

Not sure where it fits?

Send us the part number

Tell us the make, model and part number and we'll let you know how we can help, including turn and bank indicators, turn coordinators and engine gauges.

Check your part number Call (928) 537-8400

Brands we repair

  • AIM
  • INSCO
  • Bendix/King
  • Castleberry
  • and many more

New sales & cockpit upgrades

Replace, refresh and modernize the cockpit

Sometimes the right answer is new. We supply outright instrument replacements and complete avionics upgrades from the manufacturers our customers trust, so you can retire a tired instrument or future-proof the whole panel.

  • Outright replacements New flight instruments, ready for the panel
  • Avionics upgrades Modern displays and avionics that refresh the cockpit
  • Straight advice We'll tell you when a repair is the better buy
Explore sales & upgrades Request an upgrade quote
Garmin glass-cockpit displays in a helicopter panel, with the pilot and a passenger in flight

Complete upgrade solutions from

  • and other trusted manufacturers

How it works

From part number to back in the panel

A straightforward process, whether you're sending a single instrument or supporting a whole fleet.

Request a quote

  1. Identify your instrument

    Note the manufacturer, model and part number from the instrument's data plate.

  2. Request service or a quote

    Send a service request or call us to talk through repair, overhaul, exchange or a replacement.

  3. Ship it to Show Low

    Pack it carefully (gyros should be handled like eggs) and ship it to our Arizona shop.

  4. We repair or replace

    Our technicians evaluate the instrument and carry out the service you choose, or quote a new replacement when that's the better call.

  5. Returned to you

    Your instrument is packed with care and shipped back, ready to go back in the panel.

Our Texas roots

The Castleberry crew you've always counted on

Castleberry has been in aviation since 1958, when Don Castleberry opened a small instrument repair shop in Corpus Christi, Texas. The company grew up in Austin, where it developed the Castleberry gyros still flying today.

In 2024 the shop moved to Show Low, Arizona, and the people and the standards came with it. If you've trusted Castleberry with your instruments before, you'll find the same classic Castleberry quality right here.

  1. 1958 Corpus Christi, Texas
  2. 1975 Austin, Texas
  3. 2024 Show Low, Arizona
Read our full story
The Castleberry gyro line: attitude indicators, flight director gyros, directional gyros and accessories stacked together
The Castleberry gyro line, developed in Austin. We still repair and overhaul it today.

Certifications

Certified for safety and quality

We back our commitment to safety and quality with some of the highest certifications in aviation, so you have peace of mind every time your aircraft takes off.

View our certifications

  • Certified repair station

    Our Unlimited Rating means our team can take on a vast and versatile range of components.

  • EASA certified

    Airworthiness solutions for the international flight operators we support.

  • FAA-PMA certified

    We manufacture and supply high-quality, approved modification and replacement parts.

  • CAGE code equipped

    Registered and ready to support government and law enforcement fleet contracts.

  • Capabilities listing

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

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 (opens in a new tab)
  • UH-60 Black Hawk in the CAS paint hangar, with a custom flag-and-eagle livery in progress

    Custom aircraft paint & accessories

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

  • A rotor blade section painted with lightning, a helicopter and flames

    Rotor blade paint

    Rotor blades refinished and painted, from standard finishes to custom artwork.

  • Castleberry UH-60 Black Hawk lifting off from the ramp, main rotor blades turning

    Specialized rotor blade repair

    Specialized repair that returns rotor blades to service.

Request service

Start a service request

Send us the make, model and part number, and we'll help you choose the right path: repair, overhaul, exchange or replacement.

Request a quote (928) 537-8400 sales@ciamfg.com