It has become clear why flight ET302, bound for Nairobi, the capital of Kenya, crashed in 2019.
According to the information provided in Ekşişeyler; Some have wondered what caused the crash of Boeing 737 Max Flight ET302, which crashed about 5 minutes after take-off and was en route to Nairobi, the capital of Kenya. The reason behind this is that Boeing has different procedures.
This aircraft (Boeing 737 MAX) is the lowest fuel consumption aircraft of the Boeing 737 NG. For lower consumption, the Jump 1B engine was installed, its design modified and aerodynamic improvements made. As a result of these improvements, as the engines are more advanced than the 737ng (the new engine doesn’t fit in the wing because it’s wider in diameter, they pull it forward and lift it) causing the nose of the plane to lift up in flight. To prevent this, Boeing pulls the tail fins down with data that It receives it from the sensor that measures the aircraft’s speed, and it turns out that a system has been integrated that corrects the alignment by moving it upward.
When this system receives incorrect information from the sensor, it causes the aircraft to descend by moving the tail fins, even if the nose of the aircraft is not raised.
According to Boeing, if the plane dives on its own, the pilot must turn off the electric motors of those ailerons and stop the plane’s dive by turning the manual control wheel.
Boeing admits there was a problem and should have issued a software update that would have prevented this in January at the latest, but it did not. On the other hand, they say it wasn’t my fault that the plane crashed, and they should have made sure the sensor worked and the pilots followed dive-stop procedures. In other words, the pilot or technical team is liable because they did not take the correct precautions for the known problem on board.
But airlines and pilots were not informed that the Boeing 737 MAX, which was the first plane to crash, had such a system, and Boeing sent a statement after the accident.
A Boeing 737 MAX plane owned by Lion Air crashed last October, killing 189 people.
Furthermore, by lobbying the FAA, it eliminated the requirement that pilots, who normally need to obtain separate licenses for each aircraft, obtain a new license when converting from the 737 NG to the 737 MAX, thus facilitating sales to airlines.
Federal Aviation Administration (FAA): The Federal Aviation Board, or officially the FAA in English, is a “federal” government agency under the United States Department of Transportation.
The new system built into the Boeing 737 Max due to a design change is not working properly, and when it malfunctions, there is a procedure that pilots must follow. If you do not follow this procedure, the plane will dive and crash. Boeing did not properly provide this system to the pilots before the first accident, and delayed a software update that was supposed to solve the problems with this system.