Great job for a first post! I was pleasantly confused as to who these Hallowed Ones are, or why exactly the plane has a soul (or maybe its the blackbox, perhaps?). You captured that essence of "the-reader-doesn't-know-but-doesn't-need-to-know" quite well.
Lets talk about imagery. Awesome stuff! Almost all the time, our narrator described the plane in animal terms. There was some really visceral stuff there in the first few paragraphs. I will say as the readers progress into the story, some of the imagery lets up a little. Minor, minor nitpick there, though. Overall, you were consistent in describing the plane as a beast, which I know from experience there are too few synonyms for.
Really good stuff here.
Well done, Wanderer.