Why is it that lately when I track an airplane leaving Teb to Vny it shows that it has landed before it is actually has?
Without looking at the particular flight you may have a question on, I am taking a guess if it’s an airport that uses an approach controller, the “handoff” from center (A part of the ATC system), to approach, the approach controller may mark the flight “arrived”
The best clue to verfiying what I am saying is to look at the tracking line on the map. If it stops about 20 miles from the airport, then the above applies, and this is a known problem.
If the tracking doesn’t stop and goes all the way to the airport, then it may be helpful to give us a aircraft tail number to look at what you may be questioning…
Works for me