Boeing flags potential delays after supplier finds new problem with some 737s

Boeing has reported another problem with fuselages on its 737 jets (Elaine Thompson/AP)

Boeing reported another problem with fuselages on its 737 jets that might delay deliveries of about 50 aircraft in the latest quality issue to plague the manufacturer.

Boeing Commercial Airplanes chief executive Stan Deal said in a letter to Boeing staff seen on Monday that a worker at its supplier discovered misdrilled holes in fuselages. Spirit AeroSystems, based in Wichita, Kansas, makes a large part of the fuselages on Boeing Max jets.