FAA memo reveals more Boeing 787 manufacturing defects, including contamination of carbon fiber composites

SEATTLE — The litany of manufacturing defects on the 787 Dreamliner is expanding as Boeing engineers take apart planes and discover new or more widespread issues, an Federal Aviation Administration internal memo indicates. The FAA memo, which was circulated internally Monday and reviewed by the Seattle Times, points to new concerns about a previously unreported defect caused by contamination of the carbon fiber composite material during fabrication of the large structures that make up the 787’s wing, fuselage and tail. The memo also adds detail about the small out-of-tolerance gaps that have b...