Stress tests on the wings seem to show serious design flaws that were revealed with the first aircraft underwent testing on the ground.
The wing damage that grounded Boeing's new composite 787 Dreamliner occurred under less stress than previously reported — and is more extensive.
It seems that the aircraft has some problems where the wings meet the fuselage.
The Seattle Times article points out that the wings and "wing box" were made in Japan by Fuji Heavy Industries and Mitsubishi Heavy industries.
Boeing is on the hook for the design flaw