Well now I love to disagree with someone about a truly crappy movie
I sat through the bit where the "Engineer" expert (Jody Foster) expertly pronounced that this was the new Aloha 474, and loaded the snippet that she "worked on the engines"
This immediately qualified her for the rest of the movie to know where all the service hatches were in the airframe, and avionics racks, plus every function including which banana plug to pull to drop the oxygen masks etc etc ad nauseam.
When I returned she was giving the poor old Captain a hard time.
Uhh...2007? the Captain walks out of the office to pass the time of day with what could be someone about to blow up the plane???
<Spoiler> She ends up detonating a bomb just the other side of the bulkhead from her, only to emerge moments later, carrying her beloved daughter, through the smoky haze...I absolutely knew this was going to happen. Must've had a crash course in blowing things up while doing that "Engine job"
The movie was co-written, I discovered later.
In moviespeak this means: scriptwriter No. 1 has totally blown it but won't give up the screen credit.
Get the rescue team in, and pay 'em extra to justify the "co-written" monicker.
Neither of these guys knew the first thing about an aeroplane, and the whole show could've taken place in a ship, a large building, or a double decker bus.