I’m not sure how to describe this as a question… So here is an image:

enter image description here

  1. What is the device? (marked in red)
  2. What could the ground crew be analyzing near the wheel (marked in green)

They’ve been at it for quite a while

  • 3
    $\begingroup$ Welcome to Aviation. As for your second question, it could be one of many things, but there's no way of knowing by just a distant photo, so it's out of this site's scope. $\endgroup$
    – user14897
    Commented Oct 27, 2021 at 10:58
  • 1
    $\begingroup$ When you see several people standing observing someone doing something like that, it's usually a training or demonstration session of some kind. Nose gear servicing perhaps. $\endgroup$
    – John K
    Commented Oct 27, 2021 at 12:45