It includes not only highly technical services such as maintenance, fuel and oil services and freight handling, but also services which are essential to passengers' safety and comfort, such as passenger check-in, catering, baggage handling and surface transport at the airport.
Elle comprend non seulement des services de haute technicité tels que l’entretien des appareils, la fourniture de carburant et d’huile et la manipulation du fret, mais aussi des services essentiels à la sécurité et au confort des passagers, comme l’enregistrement des passagers, la restauration, la manipulation des bagages et le transport au sol dans l’aéroport.