I’m familiar with most of the coding ie UAL928 B763 is United Airlines Flight 928 in a Boeing 767-300
I know what the set of numbers means - altitude and cruising speed. But, what do the two sets of letters mean on the third line? Both sets are four letters each…I don’t think its airport codes. Can anyone tell me what those are? AND, where can I look up the waypoints to see where each is?
Thank you so much for any/all information.