Trump Threatens to Ground Canadian Jets Over Certification Dispute
President Trump escalated tensions with Canada by threatening to decertify Canadian-built aircraft and impose a 50% tariff amid a dispute over Gulfstream jet certifications; however FAA guidance suggested the move would apply only to new certifications, and experts warned revoking existing certifications would be legally and practically complex, potentially disrupting thousands of U.S.-registered Canadian-made planes and impacting air travel.