Aer Lingus On Its Own Flight International, 1971-03-25. "A SECOND 747 will be delivered to Aer Lingus-Irish within the next two weeks to join the first which arrived in Dublin on March 6."
Supplementary Estimates, 1971-72. - Vote 41: Transport and Power Houses of the Oireachtas, 1971-11-25. "The company took delivery of two Boeing 747s (Jumbos) in March, 1971, and they went into service in April and May. The Aerlínte fleet now consists of 6 Boeing 707-320s and 2 Boeing 747s."