This movie now seems dated, it is now 18 years old. The first 747 was used as "Air Force One" in 1990. When this movie came out "Air Force One" had been a 747 for only 7 years. Now it has been 25 years since "Air Force One" has been a 747.  In 2023 the new Aircraft that will serve as Air Force One will be a 747-8.  When the last 747 was delivered it was based on a 747-200 at the time it was delivered the 747-400 was being delivered. The 747-8 has the same type rating as the 747-400 they both have no flight engineer. The new Aircraft being used for Air Force One may be modified to have a flight engineers position, because it will undoubtedly have many more systems than a regular 747-8.  It will essentially have a type rating unto itself and its twin(s).  That is, no 747-8 rated pilot would be qualified to fly Air Force One.  Piloting Air Force One is a prestigious job, although it is boring. There are Air Force pilots that don't want the job. Many former Air Force pilots won't work for the Air Lines for the same reason.  It's like being a Formula One Car driver and then getting a job driving a Trailways Bus.