Boeing 737 MAX MCAS System

The Boeing 737 MAX’s MCAS system is the most devastating example of prioritizing profit over safety in modern aviation, causing two crashes that killed 346 people. It was designed to compensate for engine placement making the plane prone to stalling, but Boeing concealed MCAS from pilots and regulators to avoid $10 million in retraining costs per airline. Investigations found that MCAS’s failure rate was 40% higher than the average aviation system, leading to a worldwide grounding lasting 20 months. Outperforming #7’s Theranos in human cost, MCAS directly caused fatalities from a single software flaw, while Theranos’s fraudulent tests impacted patients’ mental health but not deaths. The tragedy remains a stark lesson.