I was looking at some of the departures from Birmingham, AL, and there were some waypoints that I weren’t sure about.
EA9 ATL ADENA1
What is EA9? It’s not noted in the Birmingham 3 DP page. A route from BHM-BNA is NO9 VUZ030025 RQZ VOLLS7. Again, what is “NO9?” EA = East, NO = North?
Any info would be appreciated.