Pilot/Controller Glossary
EN ROUTE AUTOMATION SYSTEM (EAS)
This reproduces published FAA reference text for study. It does not replace the current official FAA publication or regulation.
The complex integrated environment consisting of situation display systems, surveillance systems and flight data processing, remote devices, decision support tools, and the related communications equipment that form the heart of the automated IFR air traffic control system. It interfaces with automated terminal systems and is used in the control of en route IFR aircraft.
Retrieved from ecfr.gov on July 18, 2026.