#Boeing found debris from manufacturing in stored 737 Max jets, a problem that has plagued the company on a different plane

Boeing has discovered foreign objects in the fuel tanks of some undelivered 737 Max aircraft, according to a new report from Leeham News.

The items were considered foreign-object debris, or FOD, Leeham reported. FOD consists of items left over from manufacturing, such as tools, rags, or spare parts.

FOD is usually found during inspections before delivery to airline customers.

However, problems involving FOD have plagued Boeing at the North Charleston, South Carolina factory that produces the 787 Dreamliner wide-body aircraft. An April New York Times investigation found claims of shoddy production and poor quality control, and airlines complained to Boeing about quality issues in delivered aircraft in 2019.