37
Aircraft engine and airframe maintenance; aircraft fueling; aircraft maintenance; avionics installation and repair; aircraft engine overhaul; installation of aircraft navigation, communications and cabin entertainment systems; automotive maintenance; ground support equipment maintenance; and janitorial services in the field of aviation
39
Airport services; namely, dispatching and loading and unloading, sky capping, car and vehicle parking, parking lot services, scheduling and transportation reservation services, ground transportation of passengers and goods by vehicle, airport wheelchair services, rental of cars in the field of aviation and fixed-base operations, rental of hangar space, and mishandled baggage delivery services
42
Distributorships in the field of aviation parts and aviation ground support equipment; aviation testing; namely, testing the safety of aircraft controls; aircraft inspection; catering services; jet engine testing; aircraft fuel facility control for others