When SGT Weber is announcing his arrival, biography, and accomplishments, he states that he is from the "3rd Regiment, 47th Battalion". This is backwards. The correct unit designation is "3rd Battalion, 47th Regiment".
After going through prolonged labor during which her makeup smears and her hair becomes matted, a woman who has given birth during a hijacking leaves the plane flawlessly made up and with her hair perfectly styled.
The Moscow airport scenes at the end of the movie were actually done at Oakland Metropolitan Airport. You can clearly see its distinctive looking control tower to the right of the screen in the DVD wide screen version of the film.
Sgt Webb is said to be with the 3rd Batalion 47th Infantry Regiment(3/47th Inf) he is wearing the wrong divisional patch on his Class A Dress Greens. It show him wearing 1st Infantry Division , and in all actually the 3/47th Inf was assigned to the 9th Infantry Division at the time this movie was made not the 1st as shown
During the in-flight galley scenes, the "exit" light above the door is illuminated. This would not happen in-flight unless the "emergency light" switch is activated from the cabin/flight deck - or on the ground during power cut over/loss of electrical power. Although the galley door exit light is illuminated others, including the one above the flight deck door and at the over-wing exits are not - and they are all on the same system.
The aircraft they exit from at the end of the film is a cargo aircraft. The aircraft is a Boeing 707-300C, which contains a large cargo door on the left side. The aircraft serves a dual purpose and can be converted to cargo use from a passenger aircraft.
Lovejoy claims the lipstick on the mirror is the same color as
one of the passengers is wearing. However Lovejoy never saw the lipstick on the mirror, so she wouldn't know (the only people to see it were the female passenger, the senior stewardess and the pilot).
A Boeing 707 has ten cockpit windows, including two smaller "eyebrow" windows above each pilot. These windows are seen in all exterior shots, and in some of the fighter fly-bys shot from the airliner cockpit. Through most of the movie, however, the interior arrangement of the cockpit windows includes one full-sized window in the cockpit ceiling above each pilot. No airliner matches this window configuration, revealing the cockpit to be an elaborate set.
When the stewardess is talking to the two passengers, the view is downward. If the aircraft was actually in the air, we would see clouds, land, or water below. All we see is some type of blue material that has been placed outside the windows to conceal the fact that the aircraft was parked on the ground when that scene was filmed.
After completing its turn following take-off, you can see the jet's flaps are up. But in later shots of cruise flight, they're shown extended (down). This would cause unnecessary drag and increase fuel consumption. The jet should be "trimmed" for high-speed flight. This one clearly isn't. In later shots, while on the approach to Anchorage, the flaps are up again. It's not the way a commercial flight is normally operated.
When the passengers are deplaning, Sgt. Weller is distracted by flashbulbs from a van outside. Weller says, "What the hell's that?" to which Capt. O'Hara is heard to reply, 'Nothing, just photographers," but O'Hara's mouth is saying something different.
The goof items below may give away important plot points.
The crew of the airliner lower the gear when the Soviet fighters approach them to escort them to Moscow. However, within 10 miles of the Moscow airport, when the fighters break away from the airliner, the airliner's gear is still up.
The Soviet jet fighters are actually F100 Super Sabres built by North American Aviation which became Rockwell International (its aircraft division was renamed North American Aviation Operations) and is now part of The Boeing Company since 1997. The F100's Soviet counterpart would be the MiG-19.