| FlightLegIdentifier | See definition under Data entities |
| FlightIsMultiLeg | Flight leg is part of multileg Flight. If this flight leg is part of a multi-leg flight then the list of airports that is the whole flight is listet in FlightRouteIATA. |
| FlightRouteIATA | List of airports a multi leg flight will land on before arriving at the destination. The list consists of AirportIATA codes. The list should contain all airports including first departure airport and last destination airport. The list should be ordered by the actual sequence the aircraft uses the airports. |
| CodeshareData | See definition under Data entities. |
| FlightLegStatus | The status of a "FlightLeg". The following values are defined: "SCH", "FPL", "FLS", "ACT", "CAN", "LAN", "RER", "DIV", "DEL", "UNK" |
| FlightServiceTypeIATA | IATA SSIM Appendix C Service Types. |
| AircraftIATAType | 3 character code as designated by International Air Transport Association (IATA) to uniquely designate Aircraft Type. Local (non-IATA) codes can be added as required as long as they are unique for aircraft types within the defined context.
Reference Document: IATA codeset 7800. |
FlightIsCancelled | Set to true if the flight operation is cancelled. For flight as with code share it's possible to only cancel the code shared flight. |
| FlightDIIndicator | Indicator showing what kind of flight (domestic, international, Schengen) this is. See also: AirportDIIndicator. |
| CheckInZone | Where within the passenger terminal the CheckInDesk is located. Descriptive text string. |
| AircraftParkingPosition | Where the aircraft is located. Code for a parking position, typically a stand, but can also be a hangar. Each airport has a set of AircraftParkingPositions. Each "AircraftParkingPosition" has one given type, defined by "AircraftParkingPositionType". Each position can have one or more usages, defined by (one or more) "AircraftParkingPositionUsage". |
| Gate | Uniquely defines one gate at the airport. |
| GateStatus | The status for the boarding process for the gate. These can be set manually or by business rules (e.g. auto gating) |
| ASRT | Actual Start Up Request Time. Time the pilot requests start up clearance. Always UTC time. |
| SOBT | Scheduled Off-Block Time. The time that an aircraft is scheduled to depart from its parking position. Always UTC time. |
| TOBT | Target Off-Block Time. The time that an Aircraft Operator or Ground Handler estimates that an aircraft will be ready, all doors closed, boarding bridge removed, push back vehicle available and ready to start up / push back immediately upon reception of clearance from the TWR. Always UTC time. |
| EOBT | Estimated Off-Block Time. The estimated time at which the aircraft will start movement associated with departure. Always UTC time. |
| AOBT | Actual Off-Block Time. Time the aircraft pushes back / vacates the parking position. (Equivalent to Airline / Handlers ATD – Actual Time of Departure & ACARS=OUT). Always UTC time. |
| TSAT | Target Start Up Approval Time. The time provided by ATC taking into account TOBT, CTOT and/or the traffic situation that an aircraft can expect start up / push back approval Note: The actual start up approval (ASAT) can be given in advance of TSAT. Always UTC time. |
| DeIceIsRequested | A boolean value indicating that de-icing, or anti-icing, is requested for the relevant aircraft. |
| CTOT | Calculated Take Off Time. A time calculated and issued by the appropriate Central Management unit, as a result of tactical slot allocation, at which a flight is expected to become airborne. (ICAO Doc 7030/4 – EUR, Table 7). Always UTC time. |
| TTOT | The Target Take Off Time taking into account the TOBT/TSAT plus the EXOT. Each TTOT on one runway is separated from other TTOT or TLDT to represent vortex and/or SID (Standard Instrument Departure (ref. SIDRoute)) separation between aircraft. Always UTC time. |
| ETOT | Estimated Take Off Time. The estimated take off time taking into account the EOBT plus EXOT. Always UTC time. |
| ATOT | Actual Take Off Time. The time that an aircraft takes off from the runway. (Equivalent to ATC ATD–Actual Time of Departure, ACARS = OFF). Always UTC time. |
| FuelRampRequested | FuelRamp indicates the kilogram of fuel that is requested. Can be negative, for instance if aircraft has to unload fuel before going to a hangar. |
| AircraftMTOW | Maximum take off weight. The maximum weight (in kgs) at which the pilot of this aircraft is allowed to attempt to take off, due to structural or other limits. |
| RunwayDeparture | Departure runway for a FlightLeg. See Runway. |
| LinkedArrival | Something that links an arriving flight (leg) to a departing flight leg. Will typically contain some key information. |
