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Boeing Co. is dealing with a new defect on its 787 Dreamliner, the latest in a series of production slip-ups that have delayed aircraft deliveries and drawn increased U.S. government scrutiny.
The new problem involves certain titanium parts that are weaker than they should be on 787s built over the past three years, people familiar with the matter said. The discovery is among other Dreamliner snafus that have left Boeing stuck with more than $25 billion of the jets in its inventory.