Originally Posted by
jsloan
I expect the seats can only be entered from one side or the other. D/F tells you whether you'll need to cross to the far aisle to reach your seat. That's how the existing Polaris 763s are configured.
They (D/F) have been like that on the 2 class Polaris 763's since 2017. Don't know why but it's consistent with what they already have.