They would have built a new aircraft if one of their big customers hasn't announced they were buying a new 737 variant that Boeing hadn't even thought they were going to be making.
Boeing was going to start a clean sheet small aircraft. And then American Airlines announced they were going to buy 100 of a new 737 variant.
Boeing was going to start a clean sheet small aircraft. And then American Airlines announced they were going to buy 100 of a new 737 variant.