IndexError: list index out of range

[brunolelli]

list index out of range means you've used an index that is beyond the end of the list.

In your case you refer to nav[2] in that expression. If nav does not have three elements in it when that expression is evaluated, you'll get that error.

nav starts off empty and you only add one element to it when you reach line 28, so this should fail every time, unless dados_voo is empty. If that's empty, then you don't enter the loop and have a chance to make nav longer.

Thank you...
But, how could you fix it?
I have no idea