I assume that BNSF will remain in the business of air travel by rail (from KS).
“I assume that BNSF will remain in the business of air travel by rail (from KS).”
Yep. And BNSF delivers more than 737 body sections. Spirit Aero has part cars that go to Everett as well. So even if the 737 moved out of state, they would still ship from KS to WA by train.