News Boeing's 787-9 Dreamliner Approved by U.S., European Regulators Last updated: June 16, 2014 20:04 admin4493 10 years ago 0 Min Read U.S. and European regulators approved the Boeing 787-9, shown above in January, for commercial service. The passenger cabin is 20 feet longer than the current Dreamliner and seats about 40 more passengers.