MCAS Boeing 737

On October 29, 2018 a Boeing 737 MAX crashed shortly after take off. The investigation led to some corrective actions that could be taken to prevent another accident. However, on March 10, 2019 another Boeing 737 MAX crashed shortly after take off. Both aircrafts suffered the same issues regarding the MCAS. Thus, leading to the immediate grounding of the Boeing 737 MAX. 

The MCAS was activated due to the Angle of Attack sensor this in turn caused the aircraft to push the nose downward to correct the action. To correct the issue the flight control computer was updated to eliminate MCAS reliance on the AOA sensor and made to use both sensors instead of one. Boeing changed their flight law to ensure that MCAS would only make one correction after one AOA sensor activation alert until AOA was lowered. One of the other corrections taken to address the issue was adding horizontal stabilizers that would respond to changes in trimmed airspeed while in manual flight. This in turn would push the nose of the airplane down. 

The impact of the MCAS failure led to the death of all flight crew and passengers on both aircrafts. This mass loss of life, and the grounding of all Boeing 737 MAX cost billions of dollars in lost revenue and damages. The only positive outcome was the grounding of the aircrafts to address the issues with the MCAS preventing any further accidents. I applaud their efforts placed in correcting the issue with the MCAS. However, if the situation had been handled during the initial accident then the second accident might not have.