But the quality issues at Boeing go well beyond the 787. Manufacturing quality for the 737 MAX was called into question when the FAA inspections of the 425 MAX aircraft built during the grounding found rags and other debris in fuel tanks, indicating a systemic lack of concern on the assembly line. The company has not yet regained its production certificate for the MAX, meaning every aircraft must be inspected by the FAA rather than approved through Boeing's internal quality process, a costly extra step. Additional quality issues with the 787 do not enhance the FAA's or airline confidence in Boeing.