In aviation, aircraft ground-handling behaviour defines the maintenance of an aircraft while it is on the ground and parked (usually) at a terminal door of an airport. The restoration includes unloading unused food and beverages from the aircraft, as well as loading fresh produce and beverages for passengers and crew. The airline`s meals are usually delivered in airline service trolleys. Empty or waste-filled trolleys from the previous flight are replaced by fresh trolleys. Meals are usually prepared on the floor to minimize the amount of additives (except refrigeration or heating) in the air. Airlines can participate in an industry Ground Service Agreement (MAGSA). MAGSA is published by the Air Transport Association (the current version dates from 1981) and is used by airlines to assess maintenance and assistance prices for aircraft at so-called MAGSA rates, which are updated annually based on changes in the U.S. producer price index. [Citation required] Airlines may opt for stopover assistance services under the terms of a Standard Ground Handling Agreement (SGHA) published in the International Air Transport Association (IATA) Airport Management Manual.  Airlines may also enter into stopover assistance services under atypical conditions. Most ground services are not directly related to the actual flight of the aircraft, but involve other tasks. The main categories of stopover assistance services are described below.
The priority objective of this service offer is to ensure the comfort of passengers. While cabin cleaning accounts for most of the effort, it also includes tasks such as filling consumables on board (soap, fabrics, toilet paper, reading equipment) and washable objects, such as pillows and blankets. Airlines with less frequent service or resources on one site may provide ground-handling or on-call aircraft to another airline, as this is a more favourable short-term alternative to implementing their own ground-handling or maintenance capabilities. Media related to ground assistance of aircraft to Wikimedia Commons This includes services on the ramp or on the tarmac, such as: This service sends the aircraft, maintains communication with the rest of the operations at the airport and with air traffic control. Many airlines provide airport dock assistance services, stopover assistance agents or even another airline. According to the International Air Transport Association (IATA), conservative estimates suggest that airlines relocate more than 50% of stopover assistance to airports around the world.  Stopover assistance meets the many service requirements of a commercial aircraft between the arrival of a terminal and the departure of the next flight.