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.
Need hõlmavad lisaks ülimalt tehnilistele teenustele, nagu hoolduse, kütuse ja õlidega seotud teenused ning kaupade käitlemine, ka reisijate ohutuse ja mugavuse seisukohalt olulisi teenuseid, nagu reisijate registreerimine, toitlustamine, pagasikäitlus ja lennujaama maismaatransport.