One After 909 Lyrics Meaning

This "interpretation" will make no sense and is obviously not what the song is about, but after having just read Extremely Loud and Incredibly Close, this song really morphed into something entirely different for me.

The way in which he refers to the 909 is much like the way one would refer to a flight.

Considering the novel is about 9/11 and includes other Beatles songs, I was curious to see if the planes were 707's which they were actually 757's.
But what is a bit eerie is when you consider the title of the song, One After 909 in accordance with the lyric "I'm travelin' on that line, I said move on over once, move over twice" which 909, when "moved over twice" becomes 911.

"Railman say's I've got the wrong location" (train station as opposed to airport?) "Then I find I got the number wrong" (909?).

Also, I found it strange that flight 93 (though when the same is applied to 909), the repetition of "I'm leaving on the 90, we're leaving on the 90" would be 92, but the numbers and similarity to an airport rather than train station perhaps could subconsciously be influential when writing. [?]