Definition
An automated message exchange used by air traffic control facilities to coordinate and issue changes to a flight's filed route. The Route Amendment Dialog allows controllers and traffic management units to propose, review, and confirm route revisions electronically before the amended clearance is delivered to the pilot.
Plain English
A behind-the-scenes electronic conversation between air traffic facilities used to agree on a change to your route before that change is passed to you in the cockpit.
Context Anchor
Seen in FAA and air traffic control automation references. A pilot usually does not use RAD directly, but may receive a changed route clearance that was entered through it.
Derivation
Route refers to the path of flight. Amendment comes from the Latin emendare, meaning to correct or improve, and here means a change to a previously filed or cleared route. Dialog reflects that this is a back-and-forth exchange, not a one-way message.
Why Pilots Care
Enables fast, coordinated route adjustments for weather, traffic, or efficiency while keeping the rest of the flight plan intact.
Intuition Check
Do not read “dialog” here as a spoken conversation on the radio. In this term, it means a computer entry screen or interaction used by air traffic control.
Example Sentence 1
After a Route Amendment Dialog between the center and traffic management, the crew received a new clearance routing them south of the convective weather.
Example Sentence 2
After weather developed, the dispatcher sent a route amendment through the RAD for the pilot to review.