By what aircrafts will the UA 727s be substituted? They have a big amount, around 90. Are the A319 arrivals substituting the old planes or will newer and much better than A319s 737NGs substitute them?
Why do people keep thinking that UA will order the B737NG? They won't! UA hasn't taken a delivery of a B737 since its last -500 was delivered in the early '90s, and are more than happy with A320s.
Once and for all, UA will *not* be buying B737NGs! I don't care if they were owned by Boeing in the 1920s!