There's a video available on youtube.com of the atc from the 777 crash at Heathrow a few years ago. The whole thing is impressive and professional but there's one bit that stands out that I think kind of illustrates the type of thing we're talking about and that some American pilots might find just a little bit over the top.
You can hear the tower controller go through the procedures in a very well rehearsed flowchart like manner giving the details to emergency crews and at one point he says something along the lines of "type of problem is crash, aircraft has crashed...".....if you listen to it you'll see what I mean.
In the US they might go something like "Boeing 777 crash at the threshold of 27L, immediately dispatch emergency vehicles to the incident"....or something along those lines. They'll have guidelines and procedures but they won't necessarily have a rigid sequence of steps where it's stated that there's an aircraft accident then later on that the accident is a crash.
Again not a criticism it all worked out great but it does illustrate the different ways of thinking and how that tends to translate to RT procedure.