Boeing is reworking 50 undelivered 737 MAX jets after a supplier's employee located misdrilled holes in some fuselages, marking the latest production concern for the airplane manufacturer. Spirit AeroSystems, which has faced scrutiny for other quality issues impacting 737s, supplied the fuselages.The issue could delay some deliveries in the near future while existing 737s can keep flying, according to Boeing. "This is the only course of action given our commitment to deliver perfect airplanes every time," B ...