Closely Watched Planes - S4-E3
Factual error: If there really was a hatch leading into mid-air in the airplane bathroom, instead of being soundless like shown, it would be incredibly loud and Max would have noticed. Also, the sudden pressure change would have sucked him out no matter what he did to stop it.
Factual error: At the start of this episode you see the terminal at Washington Reagan National Airport, but when Mr. Haslett picks up his ticket you hear an announcement stating it is the Seattle, Washington Airport. (00:00:20)