An employee of the repair plant may have made a mistake during the installation of an important element of the aircraft's flight control system.
The human factor is considered to be the cause of the Sukhoi Superjet 100 (SSJ-100) crash near Kolomna with a high degree of probability.
The preliminary version of the crash is called by Izvestia , citing its source familiar with the situation.
The plane may have crashed due to improper installation of angle of attack sensors during a heavy maintenance procedure.
The repair work was carried out on the territory of the Lukhovitsky aircraft plant. One of the technicians installed 2 of 4 sensors with a deviation of approximately 5°.
Incorrect data from sensors during the climb resulted in the untimely launch of the protection system designed to protect the airliner from entering stall mode.
It is assumed that this is what led to the disaster. This is a preliminary version for now.
Experts are still determining at what specific stage the error occurred.
