Goofs

Throughout the series, Captain Dev hand-flies the aircraft and makes most of the radio calls, while the first officer and flight engineer rarely speak and often don't seem to be doing anything.

Professional pilots and flight engineers are trained to operate as a team and continuously cross-check each other's actions, and the flight engineer's primary job is to execute checklists. To reduce workload and the chances of making mistakes, it is typical for one pilot to fly the aircraft ("pilot flying") while the other navigates, watches the instruments, and operates the radios and auxiliary systems ("pilot monitoring"), and for the pilots to rely heavily on the autopilot at the top of the instrument panel. (The first officer or copilot is only subservient with respect to decision-making; both pilots know how to operate every system in the cockpit, and the roles switch back and forth freely.) In a real airliner, the pilots would divide the work to a much greater degree, would talk to one another constantly during takeoff and landing, and would frequently use the autopilot, while the flight engineer would be verbally executing checklists and cross-checking various flight instruments and controls.

Throughout the series, the flight crew is depicted using standard air traffic control (ATC) frequencies rather than the emergency frequency, yet ATC is never heard talking to other aircraft. Much of the flying action takes place around urban airports at busy times of day during a major holiday, so there would be other aircraft on frequency. In a real hijacking, it is likely that any airport where the hijacked aircraft lands will be temporarily closed, so ATC would be rerouting other inbound flights.

To cut down on this irrelevant chatter, pilots of a real hijacked flight would likely switch to the emergency frequency, but this is not depicted.