Sabena from Seaboard World Airlines, using them mainly on transatlantic routes. In the same period, there were experiments with helicopter passenger service using Sikorsky S-58 aircraft from Brussels to Antwerp, Rotterdam, Eindhoven and the Paris heliport at Issy-les-Moulineaux. 1960 saw the introduction of the Boeing 707-320 intercontinental jet for trans-Atlantic flights to New York. SABENA was mainland Europe's first airline to operate a jet across the Atlantic (BOAC had been flying jet transatlantic services using the de Havilland Comet 4 since 4 October 1958). One of Sabena's aircraft became the first Boeing 707 to crash while in commercial service when Flight
Freedoms of the air rights. From its 1962 initiation of Boeing 707 service to Idlewild (renamed JFK in 1964) flights had intermediate stops at one Middle East airport (Kuwait, Cairo, or Beirut), then two or three European airports, the last of which was always London's Heathrow, with trans-Atlantic service operating between Heathrow and JFK. This service continued well into the Boeing 747 era. Currently, Air India's North American flights are nonstop Boeing 777 service to India, with one exception, that being a revival of fifth freedom flights operating Boeing 787 service on the Newark—Heathrow—Ahmedabad route. The fifth freedom has been discussed in 2017 in