Dukes offers world class Customer Support with a skilled staff of professionals and technicians who specialize in providing repair, ampoule overhaul, adiposity spare parts, and support services. Our average overhaul / repair turnaround time is 20 calendar days, with many products take less time than that.

The Overhaul Facility is FAA approved with a Limited Accessory Rating.

(Click on the following links to view our certifications: FAA Certification , AS9100 Certification, EASA Certification)

All Dukes’ products can be sent to us for evaluation, test, repair, and overhaul. In addition, Dukes, offers spare parts and overhaul services for a wide variety of Honeywell / Grimes / Janitrol Components. Our department maintains an expanding Rotable Exchange Pool. Call us for availability.

For more information, please contact us during our business hours which are:

Monday through Thursday: 7:00 a.m. to 5:30 p.m. PST

All Dukes repairs and overhauls are protected by a Manufacturer’s Warranty. To see a detailed explanation of our warranty policy and procedures, click here.


Cabin Pressure Control System Components


Environmental Control System Components


Electronic Feedback Units


Fuel Products


Pneumatic Valves