The new system involves the installation of a variety of sensors on aircraft that monitor the operation of onboard systems, components and assemblies of aircraft. The recorded data from the sensors is then used for analysis for possible hidden problems and for predicting the time of occurrence of failures. Based on the analysis, schedules for the repair and maintenance of aircraft are compiled. Also, the new aircraft maintenance system will allow saving on the order of new and repair of old units. In particular, thanks to it, it will be possible to replace parts according to their actual condition, and not according to manufacturers' recommendations.