Complex sentence: In 1969, the terminal received a new departure-arrival concourse and lounge--known as "Flight Wing One", designed by Roche-Dinkeloo to accommodate (then new) wide-body aircraft such as the Boeing 747.
Split into simpler sentences: In 1969, the terminal received a new departure-arrival concourse and lounge. Known as "Flight Wing One", the expansion was designed by Roche-Dinkeloo to accommodate then-new wide-body aircraft, such as the Boeing 747.