The following values are defined:

• “LGT”
  Long ground time. The Aircraft will remain at the Airport for some time, and the airport needs the current AircraftParkingPosition. The aircraft must be moved to a new position.

• “ARC”
  Area change. The aircraft is parked in the wrong area of the airport and must be moved. For example, between international and domestic parking positions.

• “REQ”
  Airport request. The airport has requested that the aircraft is moved for some reason.

• “MNT”
  Maintenance. An Airline has requested that the aircraft is moved to a place where maintenance can be done.

• “ACH”
  Aircraft change. An airline has requested that the aircraft for a departure is changed.

• “POS”
  Airline request. An airline has requested that the aircraft is moved for some reason.

Additional values might be defined. Airports can define their own values, but please use two-letter codes to avoid conflict with values defined by the ACI DD.