Is it staged? the only info is that rather odd hose running from the back of the u/c cover to near the "casualty"
There are no visible steps around and the engines don't seem to be running and two of the guys don't seem to be rushing to bend down to check outthe casualty.
And that picture is crystal clear and sharp and beautifully composed. Either the camera man was photographing a line of Heyfords and an accident happened right in front of him or it was staged. I'd expect a lot less precision in the case of an accident................................