The Tybee bomb refers to a 1958 incident where a U.S. Air Force B-47 bomber collided with an F-86 fighter jet during a practice mission near Tybee Island, Georgia. The B-47 was carrying a nuclear bomb, which was jettisoned before the collision. The bomb was never recovered, and is one of the United States' "broken arrows" – incidents involving accidental loss, theft, or accidental detonation of nuclear weapons. (Ai)