Definition
An automated air traffic control function that allows a controller to revise a previously cleared route and transmit the change electronically to the aircraft or to another controller's display. The dialog presents the proposed route amendment, allows it to be reviewed or modified, and then sends it as an updated clearance.
Plain English
A computer screen tool that lets a controller change part of a flight's route and send the new route to the pilot or to other controllers, instead of working it out by voice alone.
Context Anchor
Seen in air traffic control automation and route-change procedures, rather than as a cockpit control used by the pilot.
Derivation
Route comes from the Old French rute, meaning a path or course. Amendment comes from the Latin emendare, meaning to correct or improve. Dialog (from the Greek dialogos) here means a structured back-and-forth exchange handled by a computer interface, not a spoken conversation.
Why Pilots Care
Allows rapid, precise updates to a route in response to real-time changes while preserving the rest of the flight plan.
Intuition Check
Do not read “dialog” here as a radio conversation. In this term, it means a computer screen or entry process used to make the route change.
Example Sentence 1
The controller used the route amendment dialog to reroute the flight around the line of thunderstorms.
Example Sentence 2
After receiving the new routing from Center, the dispatcher used the Route Amendment Dialog to update the flight plan in the system.