37
Repair and maintenance services; repair and maintenance of aircraft and aircraft parts; airframe maintenance and overhaul services; avionics installation services
41
Educational services; training services; education services in the nature of providing training and conferences in the field of the operation, maintenance, repair, and overhaul of aircraft, and distributing course material in connection therewith; on-line publication services; providing on-line publications in the nature of books, manuals, magazines, forms, illustrations and technical data package specification sheets in the field of aircraft, aircraft parts, avionics, and maintenance, operation, repair, and training associated with aircraft and aerospace products, parts and support equipment; educational services, namely conducting classes for aircraft operator personnel and employees of aircraft servicing facilities as to engine and aircraft operating techniques, systems design and function, and repair and maintenance procedures
42
Consultation services in the establishment of test facilities and accessory test benches which facilitate the disassembly, repair, reassembly and test of engines, modules, components and accessories in the field of aircraft parts and accessories and engines; technical consultation services relating to establishment of distributorship services in the field of aircraft parts and accessories and engines; providing quality control for others in the field of aircraft engine maintenance and reliability; technical support services; technical support services, namely, providing technical advice in the field of aircraft overhaul, repair, operation, maintenance, or modification; technical assistance services for diagnosis and correction of aircraft faults by personnel dispatched to operator's facility or remote aircraft location; custom analyses, studies and evaluations of operations and maintenance procedures of aircraft operator to maximize aircraft performance