One way around a tariff...
Delta Air Lines has adopted a rather unconventional approach to tariffs between the United States and Europe. These regulations have forced airlines ordering select aircraft from European aerospace firm Airbus to pay additional fees on imported jets, increasing financial strain in an industry with already narrow margins. However, it seems Delta has found a way around the problem.
The Atlanta-based carrier has been removing US-built engines from new aircraft manufactured in Europe and shipping the American-made parts to the United States. With the new engines, the airline can equip select aircraft in its fleet with new turbines. These jets are currently grounded due to problems surrounding the Pratt and Whitney engines they were originally equipped with. https://simpleflying.com/delta-air-lines-skirts-tariffs-repurposing-airbus-engines/
Since a new Airbus costs at least $100M, a 10% tariff is a pretty big hit. Airlines often lease airplanes rather than buying them outright, but someone would still have to pay the tariff to get the airplanes into the US.