When the stricken airliner is on final approach for landing, both pilots stare intently out the windscreen, never so much as glancing down at the flight instruments. In an instrument landing the pilot must look continuously at the instruments until the copilot reports that the runway is in sight, as that is the only way he can follow the controller's instructions. [After runway 29 was cleared, Capt. Demerest requested a "P.A.R." approach. The controller verifies it as a Precision Radar Approach. Not being an airline pilot, I imagine he wanted this kind of approach so the pilots wouldn't have to look at the flight instruments.]

When the bomber's wife calls in to the airline reservations office to warn the airline, the person taking the call uses a telephone handset, while the reservation agents sitting behind her are all using headsets. [How is this a film mistake? Some people don't use the headsets supplied with their telephone, some do.]

When Capt. Demerst tells Mel Bakerfield in the beginning of the movie that "when I'm setting down over 200 thousand pounds of 707 I want something under my wheels that's plently long & mighty dry", referring to the runway conditions, there's one problem. He's taking off, not landing. Wouldn't you assume that "setting down" would refer to landing? [It is mentioned that Capt. Demerest represents a group of airline pilots. His comment is likely made on behalf of pilots who will be landing at the airport under current conditions.]