Boeing Co. is working through cascading supplier problems that will hamper third-quarter deliveries of its 737 jetliner, the planemaker’s largest source of profit.
Hiccups at the makers of fuselages and engines, combined with record 737 output, have contributed to a production logjam at the planemaker’s Seattle-area factory. Like Airbus SE, Boeing is starting to feel the consequences of its fastest-ever tempo for narrow-body aircraft as suppliers struggle to keep pace.
