Later in 1982, Acker was appointed chairman and CEO of Pan Am, where he quickly moved to expand the airline's route network after several years of contraction, and to lower the airline's ticket prices in order to compete with low-cost competitors such as Laker Airways.
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The world's first ABC flight was operated on April 2, 1973, by Laker Airways between Manchester and Toronto carrying 250 passengers on one of the airline's newly acquired McDonnell Douglas DC-10 widebodied jet aircraft.