The Federal Aviation Administration of the United States has discovered that Boeing 737 MAX quality control is "non compliant". On the 4th, the Federal Aviation Administration of the United States said that Boeing and its airframe suppliers are bound to have some "non compliant" situations in the quality control of 737 MAX passenger aircraft manufacturing. The Federal Aviation Administration (FAA) issued a statement stating that a 6-week audit of Boeing and Mobius revealed "multiple situations" involving these two companies "possibly not complying with some manufacturing quality control requirements.".