IN MARCH A Boeing 737 max aircraft crashed in Ethiopia, just six months after a similar accident in Indonesia. Nearly 350 people were killed in the two disasters, which revealed a flaw in the max's flight-control system and put into question a vast industrial enterprise. Airlines are relying on the delivery of thousands of max planes over the next decade or so. Boeing was expected to make up a large share of its future profits from the max. The firm is one of America's biggest exporters and at least a million people work for it or for its suppliers.
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