Originally Posted by
mander
I've seen all over the place. On a DEN-LNK on a CRJ700 it was F6 but I cleared at the gate and was the only one in F.
Sometimes that happens to protect from a dounguage to a CRJ. I've seen a lot of F4 NF0 on A320 flights where the 757's and 319's on the flights before and after show F3 NF2 or some such thing.