Overview

Airports and airlines are exchanging data to improve their operations: Airport operations request to receive the latest change of flight movement data, pax and aircraft swap data in real-time from airlines. Airlines are expecting to get the latest updated gate assignments and ground operation statuses, such as aircraft towing, de-icing, baggage loading, etc.

Actions

Create complete coverage for use cases (Reviewed at ACRIS Workshop in London)
Migrate existing use cases into the ACRIS use case template into Confluence (copy the ACRIS Use Case Template underneath the D1 - Airlines (Core) page) Davey Zheng 30.04.2023
Organize Airport subject matter experts / business analysts for use case elaboration (global coverage required EU, US, etc.) Davey Zheng
- Raise request for Support at next Project Mgmt. Synch Meeting

Terminology: Provide a report on how many terms identified need to be defined and how many of these are existing in the ACRIS model. Provide update on a Friday meetin Davey Zheng 19.05.2023
Members to (peer) review D1 use cases before creating sub-pages 21/7/2023 - decentralized, offline, comment in Confluence

Use Cases

High level scope

Airline Shedules (updates)

ACFT towing movement

D1 use case only for data exchange, main use case in
- → D6 - Fixed Resource Management (Core) where the information originates from
- → D2 - ATC (Core) for data exchange back and forth ATC

RMS Stand change (D1 use case only for data exchange, main use case in-> D6 - Fixed Resource Management (Core) where the information originates from)

ID:	Airline_UC001
Title:	Update operational flights
Description:	Flight arrival or departure time and flight status will be updated during operational day. Airline sends these updates to airport.

ID:	Airline_UC002
Title:	Change/swap aircraft for an operational flight
Description:	Airline changes aircraft for an operational flight and sends an updated aircraft data (aircraft type, registration, tail) to airport.

ID:	Airline_UC003
Title:	Change allocation for airline-managed stand
Description:	Some airports, airline manages some aircraft stands for operations, these stand allocations and associated boarding gate will be sent to airport.

ID:	Airline_UC004
Title:	Update passenger numbers for operational flight
Description:	Estimated pax number, booked pax number and actual pax number will be updated for the operational flight. That will trigger the airline to send the updated pax numbers to the airport.

ID:	Airline_UC005
Title:	Create ad hoc flight (Airline)
Description:	An unscheduled flight is planned by an airline during the operational day. The airline sends this ad hoc flight data to the airport.

ID:	Airline_UC006
Title:	Divert flight to airport (Airline)
Description:	Depending on any situation, pilot may choose to divert to a nearby airport for any unexpected scenario.

ID:	Airline_UC007
Title:	Update aircraft towing plan (Airline)
Description:	Some hub airlines manage a certain number of aircraft stands at the airport for their flights. Aircraft movements between their managed stand, parking stand and hangar is usually planned by airline. Airline shares their updated towing plan to airport. (Note: Airport will have airport towing plan for all airlines.)

ID:	Airport_UC001
Title:	Update ground operation status (Airport)
Description:	Airport updates status of ground operations for flight:  e.g. catering, baggage load/upload, fueling...

ID:	Airport_UC002
Title:	Update resource allocations in AODB (Airport)
Description:	Airport Fixed Resource Management updates resource allocations driven by various operational circumstances. Some approved resource allocation changes will be forwarded to AODB, such as Stand, Gate, Terminal, ...

ID:	Airport_UC003
Title:	Update aircraft towing plan
Description:	Aircraft movement between the stand, parking stand, and hangar is usually planed by airport Fixed Allocation Management with a daily tow plan. Airport shares the updated towing plan to airlines. (Note: some airlines manage their own towing plan)

Airline Data to Airport

Airport requests to receive the latest OPS flight schedule (plan) before the operational date start. During the operation day, the airport expects to receive any changes from OPS flight times, routes pax, and status plus aircraft changes from airlines.

4.1 Basic flight data from airline

Field	Description
fltID	The operating carrier code, number and suffix for the flight.
fltBound	A flag specifying whether this refers to an arrival or departure flight, an A for arrival, or a D for departure.
fltRoute
arrStation	Arrival airport IATA code
SIBT	Scheduled UTC arrival time of the leg.
EIBT	The UTC time when the leg is expected to arrive at the gate.
AIBT	The actual time the leg was onblock or arrived at the gate in UTC.
depStation	Departure airport IATA code
SOBT	Scheduled UTC departure time of the leg.
EOBT	The UTC time when the departure (offblock) is expected.
AOBT	The actual time the leg was offblock (departed from the gate) in UTC.
fltStatus	The current flight status. Can be one of: On-Time; Arrived; Departed; Boarding; Early; Delayed; Late; Landed; Cancelled; Diverted; Return To Ramp; See Agent; Airborne
publicRemark	Public remarks for the requesting station. Usually will contain the city name of the other end of the flight.
tailNumber	Tail Number of the aircraft operating the flight (if known)
regNumber	The registration number of the aircraft operating the flight (if known)
fltSector	Product type determined by the pairing of the departure and arrival stations. (International, Domestic, Transborder, Schengen )
acSubtype	The equipment type (ie: 333, 320, 763, etc.)
fltServiceType
aircraftGate	M, if it is an airline managed gate
publicGate

4.2 Additional flight data from airline

Field	Description
EADT	The UTC time when the leg is expected to land at arrival airport.
ALDT	The actual time when the leg has arrived (touch-down) at the arrival airport in UTC.
ETOT	The UTC time when the leg is expected to go airborne (takeoff).
ATOT	The actual time when the leg has taken off from the departure airport in UTC.
DayOfOrigin	The UTC day of origin for the first leg of the flight
localDayOfOrigin	The local day of origin for the first leg of the flight.
Event	List of defined events that have been recorded for this flight.
stationFltTime	The most current flight departure or arrival time stated in station local time, formatted as “YYYY-MM-DD HH:mm:SSL”.
groundTime	The current operational groundtime identified as elapsed time. The elapsed time is based on the time the aircraft arrives (STA, ETA, ATA-onblock) at the station until the time the aircraft is to depart the station (STD, ETD, ATD-offblock). In format HHH:mm
lastEditTime	The last time this flight record was modified.
Cancelled	Special cancellation parameter. 0 is a regular flight, 1 is a flight that is cancelled, but still should be displayed. Any other value is a cancelled flight that should not be displayed.
diversionAirport	IATA code of the airport which the airplane will actually be arriving at in the case of a diversion or return to ramp.

Airport Data to Airline

Airlines are expecting to receive the GATE and ground operation states such as aircraft towing, de-icing. Optionally airlines may interested to get the state of catering load, baggage load and aircraft fueling from airport as well.

Gate Changes + Ground Operations

The following table describes data elements are available in airport to airlines for gate changes and some ground operations in Apron, it will be triggered by Gate or Ground Operation events except Towing. Baggage belt allocations information is also available to airline baggage handlers as well.

5.1 Basic Flight Data from Airport

Field	Description
fltID	The carrier code of the operating carrier of the flight, flight number and suffix.
fltBound	A flag specifying whether this refers to an arrival or departure flight.
arrStation	Arrival airport IATA code
depStation	Departure airport IATA code
schTime	The scheduled time flight arrival or departure at the station, formatted as “YYYY-MM-DD HH:mm:SS”.
acSubtype	The equipment type (ie: 333, 320, 763, etc.)
tailNumber	Fin Number of the aircraft operating the flight (if known)
regNumber	The registration number of the aircraft operating the flight (if known)
fltSector	Product type determined by the pairing of the departure and arrival stations. (International, Domestic, Transborder, Shengen)
lastEditTime	The last time this flight record was modified.
aircraftStand	Assigned aircraft gate
publicGate	Passenger boarding gate

5.2 Additional Flight Data from Airport

Field	Description
Event	List of events that have been recorded for this flight. Comma-Separated list of the following event codes: GATE, BAG,
stationFltTime	The most current flight departure or arrival time stated, formatted as “YYYY-MM-DD HH:mm:SS”.
baggageBelt	Assigned baggage belt
bagLoadCompleted	The time baggage load complete
cateringLoadCompleted	The time catering load complete
fueling Completed	The time Fueling complete
deicingCompleted	The time Deicing completed for this flight

Aircraft Towing Data (Airline ↔ Airport)

Field	Description
fltCarrier	The carrier code of the operating carrier of the flight.
arrNumber	The operating flight number or tow flight number
arrOPSDate	The operating flight date
depNumber	The operating flight number or tow flight number
depOPSDate	The operating flight date
fromStand	Tow from position
planDepTime	Planed Tow time
actualDepTime	Actual Tow time
toStand	Tow to position
planArrTime	Planed Tow complete time
actualArrTime	Actual Tow compete time
aircraftSubtype
regNumber
tailNumber
Station	Ground operation airport code
towID	Sequence number
lastEditTime
updateType	A single character that provides a way to determine if this is a New row, a Canceled row, or an Updated row.