Two big companies, Boeing and Spirit AeroSystems, make airplanes. The people who check if the planes are safe found some problems with how they made a certain plane called the MAX. They had to stop making more of those planes until they fix the problems. This is not the first time these companies have had trouble with how they make their planes. Read from source...

- The title is misleading and sensationalized. It suggests that Boeing and Spirit AeroSystems are under scrutiny for quality control violations, but the article does not provide any evidence or details of such violations. Instead, it mentions that they are working with the FAA to address the issues, which implies a collaborative effort rather than a hostile investigation.
- The paragraph about the mid-air emergency is vague and does not explain how it relates to quality control. It only states that the aircraft lost a door plug at 16,000 feet, but does not mention if this was caused by a manufacturing defect or a rare occurrence. Moreover, it does not specify how this incident prompted the FAA to halt Boeing's production expansion, as there could be other factors involved in that decision.
- The paragraph about the FAA audit findings is also unclear and incomplete. It says that the findings add to Boeing's ongoing challenges with quality control, but does not provide any examples or details of these challenges. It also implies that the FAA issued a stern ultimatum to Boeing to address its issues within 90 days or face se, but does not finish the sentence or explain what se means in this context. This creates confusion and leaves the reader wondering what happened next.
- The article overall lacks coherence, accuracy, and objectivity. It seems to rely on sensational headlines and vague statements rather than factual information and logical arguments. It does not present a balanced perspective of the situation, nor does it acknowledge any positive aspects or achievements of Boeing and Spirit AeroSystems.

Negative

Key points:
- FAA audit finds quality control issues at Boeing and Spirit AeroSystems
- The findings follow a mid-air emergency involving a 737 MAX 9 in January
- Boeing faces an ultimatum from the FAA to address its problems within 90 days or face severe consequences

Summary:
The article reports on the negative outcome of an FAA audit that revealed quality control violations at Boeing and Spirit AeroSystems, the manufacturers of the 737 MAX aircraft. The findings are a blow to Boeing's reputation and operations, as they come after a mid-air emergency involving one of its planes in January. Additionally, the FAA has given Boeing a short deadline to fix its issues or face serious repercussions.