On March 25, 1948, a UFO was detected and picked up on their scopes by three separate and strategically located radar units in the southwestern part of the United States. It is theorized that [the beam from one of the radars] had some kind of effect on the central control system of the flying object, for immediately it seemed to go out of control. The following is an in-depth overview of the crash and subsequent recovery of a UFO and sixteen humanoid occupants near Aztec, New Mexico:

Link:
http://www.phantomsandmonsters.com/2014/02/the-aztec-ufo-crash-recovery.html