9
Electronic aviation instrumentation and equipment, namely, cabin pressurization hardware and equipment and instrumentation; air data measurement equipment; cockpit instrumentation and displays; and air data test equipment; electronic aerospace systems for the commercial and defense aviation industries comprised primarily of enhanced cockpit vision instrumentation and hardware for reduced visibility conditions; and aviation software for the commercial and defense aviation industries
37
Repair and maintenance of electronic aviation equipment and ground support equipment for the military avionics industry; repair and maintenance of aerospace and avionics electronics systems for the commercial and defense aviation industries
42
Design, development, and testing of aerospace and avionics electronics systems for the commercial and defense aviation industries; design, development, and testing of electronic aviation instrumentation and equipment