Fenix
Arcane
It makes me think of a wound in the fabric of reality but not of gutted decks inside a spaceship.
it's going to be part of the industrial, patchwork, scavenger lingo.
I think inhabitants of the ship have no understanding - very different from our at least wht does "industrial" mean.
They don't know anything different that metall, they see metal everywhere, and for them its as natural as for inhabitants of Amazonian jungles trees and lianas.
So, industrial isn't the word they could use, at best they can differ organic sector of the ship - there are places with trees or something like tht right? - from non-organic.
Also, if they didn't degrade to the level of caveman, they understand that they totally dependent on the ship and its systems and its working condition - they need air, need air circulation, heating, cooling, and if anything goes wrong even in slightest they they'll die a terrible death.
And the ship is as big and complex that they can count it as living organism.
That was my logic.
But the Deadfall sounds good too.
PS Also, how about MULTIPLE names for that sector?
Like different groups call it different - some who feel the Ship like or almost living being can call it The Wound, other with different point of view can give it another name. Thus you can utilize a few good names for it. )
PPS That was Mission Control right? Brains or spine of the ship.