Despite the crew's strenuous efforts to maintain control, the plane crashed into the Java Sea just 13 minutes into the flight. This sensor provides critical data to the aircraft's systems, including MCAS, to determine the airflow over the wings.
Boeing 737 MAX Certification Issues and MCAS System Failures
The Role of Angle of Attack Sensors A central technical issue in both crashes was the reliance on a single angle-of-attack (AOA) sensor. Compounding the problem, the system used this single data point and could repeatedly command the stabilizer trim, overpowering the pilots' control inputs.
The incidents exposed critical vulnerabilities in how new automation systems are integrated and certified, raising profound questions about the balance between technological advancement and pilot authority in modern aviation. The flight data recorder indicated that the MCAS system was receiving erroneous signals from a single angle-of-attack sensor, causing the aircraft to nose down repeatedly.
Boeing 737 MAX Certification Issues and MCAS Sensor Failures
Its primary function is to counteract a specific aerodynamic characteristic that emerged from the aircraft's design modifications, particularly the larger engines mounted further forward. The MCAS interpreted this incorrect data as an imminent stall and commanded a nose-down input.
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