There is more to this story. The aircraft were assembled overseas and the airframe was put together using pattern-and-spray techniques for drilling holes and such. So, when Boeing sends in parts machined to match the prints… nothing lines up.
They had to do a significant modification to the tail section, for example, because the plane would have ended up flying crooked without it.
I suspect what happened was that Trump insisted on a rebuild of existing airframes and someone either thought they would make a fast buck on the deal or decided to deliberately choose poor modification candidates for the project.
There are other problems pertaining to production crew skills, management philosophy, etc - but all of that is dimes and the occasional ten dollar bill on the pile of million dollar foundational problems created from the use of these particular airframes.