Erroneous data from the stall prevention system (MCAS) and a failure in the air signal system circuit could lead to the so-called “sinking” of the S7 aircraft in the air, REN TV reported on December 5.
According to some reports, the angle of attack sensor could malfunction. Because of this, two Boeing 737-Max crashed: one fell into the Java Sea in 2018, the other crashed into the ground in Ethiopia in 2019 at a speed of 1126 km / h. In both cases, erroneous data from the stall warning system led to the disaster: the plane did not gain altitude and the automatics transferred it to a dive position.
MCAS, according to the idea of engineers, should only be activated in manual control mode, when the pilots are controlling the aircraft. The program is designed to help pilots correct piloting flaws and bring the liner to the required flight modes.
On December 2, the S7 airliner took off from Magadan to Novosibirsk. After the plane was transferred to the “direct” autopilot mode, control problems began. Then the ship began to sway strongly, and its speed began to fluctuate. The system gave a “stall danger” signal, and also notified about icing of the first and second engines. As a result of the buildup, the plane lost 2.7 thousand meters of height.
According to a REN TV source, the incident could have been caused by interference in the control of the co-pilot’s board. According to him, the co-pilot could use the aircraft control stick simultaneously with the aircraft commander, while the Airbus A320 aircraft do not provide for two stick controls, since the signals are summed up.
On the fact of the incident, the Magadan Transport Prosecutor’s Office began to check. The commander of the S7 plane refrained from commenting on the incident in detail, noting only that “an investigation is underway.”
Source: IZ
Jane Stock is a technology author, who has written for 24 Hours World. She writes about the latest in technology news and trends, and is always on the lookout for new and innovative ways to improve his audience’s experience.
