Dick, if you are going to post on an ATC forum, I suggest you use the correct language lest you get the wrong answer. Benalla was not a terminal accident as an ATC would understand the term.
A terminal control area (TMA, or TCA in the U.S. and Canada), also known as a terminal manoeuvring area (TMA) in Europe, is an aviation term to describe a designated area of controlled airspace surrounding a major airport where there is a high volume of traffic.