 It was delivered to United Airlines on October 1960 and then purchased in 1973 by Contemporary Entertainment.English rock band Led Zeppelin used the aircraft for their 1973 and 1975 North American concert tours.During the 1972 tour and in the early part of the 1973 tour the band had hired a small private Falcon Jet to transport its members from city to city, but these aircraft are comparatively light and susceptible to turbulence.