It is true as far as we know. However: * Boeing is guilty of the same, selling hundreds of both the 737 and 787 far below production costs to be able to compet

It is true as far as we know. However: * Boeing is guilty of the same, selling hundreds of both the 737 and 787 far below production costs to be able to compete with Airbus' 320 and 350. * Slapping such a massive tarif onto the CSeries was a political move aimed purely at squashing a new competing product that barely overlaps in cost/capabilities with a 40 year old, obsolete Boeing product.