Boeing investigates quality problem on undelivered 787s, sources say

Boeing employees assemble 787s inside their main assembly building on their campus in 2023, in North Charleston, S. C. (Gavin McIntyre/REUTERS/File Photo)

Boeing is investigating a new quality problem with its 787 Dreamliner after discovering that hundreds of fasteners have been incorrectly installed on the fuselages of some undelivered jets, two people familiar with the matter said.