[American Constitutionalist]

There is technology today that tells the pilot where the plane is in relation to the ground.
For example this technology can tell the pilot if the plane is about to run into a mountain or not if there was fog or bad weather coming into land.
With this plane sounds like something happened in mid air just seconds or minutes before landing.

[diogenes ghost]

That technology has nothing to do with landing, it is to avoid running into a granite overcast.