The uniforms worn by the airlines female crew members are actual TWA Stewardess uniforms worn during the winter months from 1968-1971. The same uniforms can be seen at the end of Steven Spielberg's "Catch Me If You Can".
Farrah Fawcett made this at a pivotal point in her career: She was already famous for that pin-up poster featuring the red swimsuit and trademark hairstyle, but had not yet been cast in her break-out role on Charlie's Angels.
Although this is intended as a straightforward drama, many of this film's most dramatic moments were lifted almost verbatim and used for comic effect in 1980's Airplane!
Four of the actors in this 1975 Spelling-Goldberg TV movie production also appeared in Season One of Charlie's Angels the following year: Farrah Fawcett-Majors (obviously), Fernando Lamas, Hugh O'Brian, and Theodore Bikel.
Castmates Walter Pidgeon and Bob Harks had three years earlier been in the cast of in another air disaster movie, the theatrically released Skyjacked (1972), with the troubled plane in that movie being designated Flight 502 as well. Both movies also each had an actor who played a member of The Partridge Family (1970)--Danny Bonaduce in this TV movie and Susan Dey in the earlier film.