The three types of EUR-production of the makhakkaly plant "Aviazar", Kaluga plant "Avtoelectronics" and Korean company Mando were installed on Ladu Kalin. The most frequent quality claims of the owners arose from the production of the aircraft manufacturer and the Kaluga of the early years of the issue. Therefore, it is recommended to select the power amplifiers Mando and the latest modifications of the automotive electronics. In addition, some of the breakdowns of the mechanism are to be repaired.