> I mean, Bombardier was selling the planes below cost, which is the technical definition of dumping Nope, it's not unheard of in aviation because a plane, or

> I mean, Bombardier was selling the planes below cost, which is the technical definition of dumping Nope, it's not unheard of in aviation because a plane, or an engine, has a multi-decade life, over which there will be a lot of maintenance and spare parts needed. GE and Rolls-Royce used to sell jet engines at a loss, banking on maintenance and spare parts making up the losses. And of course, the punitive tariffs were later removed because Boeing weren't actually impacted by the C-series, dumping or not.