Death in the Air (aka Pilot X and The Mysterious Bombardier) is a 1937 American film directed by Elmer Clifton and starring Lona Andre, John Carroll, Leon Ames and Henry Hall.

The film is also known as Murder in the Air in the United Kingdom and as The Mysterious Bombardier (American reissue title).

[1] Inspector Gallagher of the United States Department of Commerce views a number of crashes and disappearances of the Goering-Gage Aviation Corporation aircraft as suspicious.

When a crash survivor claims that a mystery aircraft had attacked his plane, its owner, Henry Goering, hires psychiatrist Dr. Norris to question the man.

Dr. Norris believes that a psychotic ex-World War I flying ace, whom he dubs "Pilot X," may be responsible for the attacks.

With the help of Blackwood, Goering and Norris assemble a group of five former flying aces who may have a connection with the mysterious Pilot X.

[1][Note 1] The aircraft used in the film include the Waco INF, Pitcairn PA 7S "Mailwing Sport", Fleet 2 and Stinson SR 8B.