Maintenance, inspection, overhaul, servicing, repair, cleaning, washing, refurbishment, conversion, fitting out of aircraft, aircraft and their component parts, notably their nacelles; servicing, inspection, overhaul, maintenance, repair, cleaning, washing and repair of aircraft nacelles, aircraft engines, appliances, equipment or aeronautical, avionics, hydraulic or pneumatic parts; assembly and repair of spare parts for aircraft nacelles, aircraft, avionics, hydraulic or pneumatic equipment or parts and fittings for air vehicles on behalf of airlines; replacement of aircraft nacelle parts, aeronautical, avionics, hydraulic or pneumatic equipment or parts and fittings for air vehicles on behalf of airlines; installation of replacement parts for air vehicles and their constituent parts, notably nacelles; management of spare parts for aircraft nacelles, aeronautical, avionics, hydraulic or pneumatic equipment or parts on behalf of airlines; supervision, direction and coordination of services for the construction, maintenance, overhaul, servicing, cleaning, washing, repairing, refurbishing, converting or fitting out of any aircraft, their component parts, including their nacelles, or any buildings; assistance and repair in the event of vehicle breakdowns, in particular of aerial vehicles; fitting out, conversion, modernisation and refurbishment of vehicles, in particular aircrafts; refurbishment of worn-out or partially destroyed aircraft nacelles; refurbishment of worn-out or partially destroyed machinery; refurbishment of worn out or partially destroyed engines; rust treatment, preventive rust treatment for vehicles; maintenance, inspection, overhaul, cleaning, washing and repair of all safety equipment, in particular on board aircraft, in airports or in airport areas; sealing services; insulation services; information services relating to the servicing, overhaul, maintenance, cleaning, washing or repair of all aircraft, their component parts, notably their nacelles, appliances, equipment, aeronautical or avionic, hydraulic or pneumatic parts, of airports, airport infrastructures or any buildings

Technical inspection of vehicles and in particular of air vehicles and their component parts, notably nacelles; technical assistance services in airport engineering; industrial design in the air and aeronautical field; materials testing in the air and aeronautical field; meteorological information and analysis services in the air and aeronautical field; technical project studies in the air and aeronautical field; expert opinions and engineering work in the air and aeronautical field; quality control in the air and aeronautical field; technical or technological services for the modernization or conversion of aeronautical equipment and parts thereof, notably aircraft nacelles; technical or technological advice on the modernization or conversion of aircraft and notably of their nacelles; advice on energy saving in the air and aeronautical field; research into environmental protection in the air and aeronautical field; research and development of new products for third parties in the air and aeronautical field; statistical information in the field of the promotion and dissemination of aeronautical innovation