Models for Reducing the Duration and Cost of the Aviation Equipment Diagnostics Process Using the Decomposition of the Component Architecture of a Complex Product

Aircraft maintenance (AM) is a set of operations at the operational stage to maintain airworthiness, the purpose of which is to prepare the aircraft for flights, maintain serviceability, etc. The analysis of possible failures and their consequences during maintenance is carried out “from top to bottom”. As a result of the decomposition, the presence of defects in functional subsystems is analysed. For the coordinated execution of operation processes, it is advisable to use simulation modelling. Therefore, the task of creating a simulation model of technical maintenance and repair of automatic transmission lines, which includes modules for diagnosis, fault finding, accumulation of diagnostic information for further processing, etc., is set and solved. The purpose of the study is to develop a model of multi-level component search for aircraft malfunctions during diagnostic processes. The subject of the research is the planning and management of operation as a stage of the life cycle of complex equipment. The following mathematical models and methods are used: system analysis, information theory, simulation modelling. A model of multi-level component fault finding during the diagnostics of the automatic transmission system is proposed, which will allow to optimize the duration and cost of maintenance of operational equipment.