Understanding aviation maintenance is never easy. In fact, it’s becoming more challenging everyday. As you face continuing budget constraints, growing federal regulations, and increasing demand for higher reliability, you need a partner you can depend on.

How often have you needed instrument support in the middle of the night, or were stranded in a remote location of the world due to an instrument-related failure? If you have used UNDERWOOD-Instrument Services (U-ISi) in these extreme situations, you know that your aircraft was AOG for the minimum amount of time possible. We know that downtime is lost time and we hate lost time. No matter what your instrument requirements may be, UNDERWOOD-Instrument Services only employs experienced technicians which are available 24 hours a day, seven days a week to answer your call and respond to your needs.

UNDERWOOD-Instrument Services provides total instrument support on both fixed-wing and rotor aircraft to corporate, regional and commercial airlines, and government organizations worldwide. We also provide telephone technical support and on-site troubleshooting.

Inventory of parts and materials to ensure a rapid repair and turnaround of your instrument is one of our service goals. In the event that you need a loaner or exchange instrument, a large exchange pool is available to meet even your most demanding requirements. If you need a flight director indicator or a gyro shipped to you at three in the morning, we have the people and the resources to make it happen time after time. Not many companies can say that and back it up with proven performance.

We are able to consistently provide exceptional service to our customers because of a highly trained and totally dedicated work force who are provided the very best test equipment and tooling available. Absolutely every employee has been trained in and believes in customer support. Our technical staff is continually trained in the latest technology and techniques to provide you with the most reliable products and services in the minimum amount of cost and time.

Our Quality Assurance department monitors maintenance in progress, as well as the finished products, as an added measure for ensuring that a top quality product is delivered to you. We can proudly boast one of the lowest return rates in the industry!

Situated in Carrollton, Texas, UNDERWOOD-Instrument Services is an FAA Certified Repair Station with Instruments Class I, II, III, and IV Unlimited, and Limited Accessory ratings. We are EASA Approved Certificate Number EASA.145.5210.  We employ people who are all committed to providing the best service and quality available in the aviation industry. We have consistently provided high-quality instrument support to customers worldwide for over 40 years. Our experienced on-site technical service team provides 24-hour support at Love Field and other Dallas Metro airports, such as Dallas/Fort Worth, Addison, Meacham, and Alliance.


UNDERWOOD-Instrument Services, Inc. is a proud Corporate Sponsor of
PAMA National Chapter

For more information on UNDERWOOD-Instrument Services, Inc.

Mail & Ship To: 3116 Kellway Dr, Suite 102, Carrollton, Texas 75006, USA
Phone: 800.767.0767 or 972.931.8525 / Fax: 972.380.0076

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