Factual error: When Nick "turns the pressure back on" all he does is flip his O2 regulator from normal to emergency. This would not have helped the other passengers wake up. (02:46:20)
Factual error: After taking off from Bangor, the pilot pulls back on the flight control bringing the plane up to level flight. However, after taking off, a plane is "nose up" and would require pushing forward on the controls to bring the nose down to level. This is also evident by looking at the attitude indicator (circle with top half blue and bottom half brown). The white line indicates the horizon and you can watch the indicator show the plane's attitude coming from below horizon (nose down) to the horizon (level flight).
Factual error: When the airplane lands at LAX, the pilot indicates being out of fuel and is nearly unable to stop the airplane. However, the particular gate (54) where the airplane ends up at LAX would require a minimum of four stops and turns before getting there. Ending up at that particular point would not have been possible without power to taxi.
Factual error: When initially investigating the missing people and the condition of the airplane, Brian looks at a screen that gives the airplane's transponder code (or "squawk") as 7777. An airliner would never be squawking that code, since this particular code is reserved for military interceptor operations.
Factual error: Attempting to steer an airplane moving along the ground at more than 100 knots will cause the landing gear to be destroyed.
Answer: In the book he slaps her across the face during a heated argument. I can only assume that is what he is talking about.