Which system provides a two-way link between a flight and ground facilities?

Which system provides a two-way link between a flight and ground facilities?

• A. Airborne Data Network
• B. Automatic Data Exchange System
• C. Aircraft Communications Addressing and Reporting System
• D. Aircraft Communications Addressing and Reporting System

Answer: (D)

ACARS provides a two-way data link between the aircraft and ground facilities. It sends and receives short, text-based messages and data between the cockpit and airline operations centers, dispatch, ground stations, weather services, and maintenance, allowing changes to flight plans, weather updates, status reports, and diagnostic information to flow quickly in both directions. This bidirectional capability reduces reliance on voice radio and improves coordination and efficiency across the flight, ground crews, and support teams. The system operates over VHF Data Link for most routes and can use satellite links in remote areas, ensuring reliable two-way communication wherever the aircraft is. Other terms don’t specify this established two-way data-exchange link used in airline operations, so this system best fits the description.

ACARS provides a two-way data link between the aircraft and ground facilities. It sends and receives short, text-based messages and data between the cockpit and airline operations centers, dispatch, ground stations, weather services, and maintenance, allowing changes to flight plans, weather updates, status reports, and diagnostic information to flow quickly in both directions. This bidirectional capability reduces reliance on voice radio and improves coordination and efficiency across the flight, ground crews, and support teams. The system operates over VHF Data Link for most routes and can use satellite links in remote areas, ensuring reliable two-way communication wherever the aircraft is. Other terms don’t specify this established two-way data-exchange link used in airline operations, so this system best fits the description.