On 15 April 1982, Air Lanka received its own L1011 Tristar purchased from . With the introduction of Tristar aircraft, the Boeing 707s were phased out and sold. Then another L1011 was leased from whilst the third L1011 was purchased from All Nippon. On 1 May 1982, took over the maintenance of the two Air Lanka-owned Tristars, while Air Canada maintained two leased Tristars.