Purpose of research is to describe the process of making managerial decisions in terms of the management system of logistics flows based on the management theory principles and concepts.Methods. The formalization of the management system of logistics flows of transportation and storage complex is based on the management theory approaches and methods. The proposed management system model presupposes the formation of an influencing impact, the specification of the output coordinates of the object under control after working out control actions, and a description of the external environment. The visual model of the management system and its formalization in terms of the set-theoretic approach are presented. Management principles based on error and disturbance are described; the accounting of these principles makes it possible to adjust the managerial actions on the logistics flows of the transportation and storage complex to achieve the targeted benchmarks of a company. Making a managerial decision in logistics of transportation and storage complex is based on a process approach.Results. The proposed visual as well as set-theoretical model of the management system for logistics flows of transportation and storage complex is the basis for further formalization of the management problem, optimality criteria and corresponding constraints in similar logistics systems. The process of managerial decision-making in relation to logistics flows given in the article is considered as the basis for expanding the possibilities of applying automated decision support systems.Conclusion. The prospects for the further development of management processes based on the principles of automation are assessed as significant ones. The theoretical substantiation of these prospects is the formalization of the control system model based on the management theory approaches, which makes it possible to determine the areas of further work for expanding management theory use in such organizational systems as logistic ones as well as to specify the management task for them.

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-The paper presents an issue of estimation of the technical condition of the selective headers applying mathematical model of alteration of the actual condition of an object of diagnostics. The paper shows that a complex method is more relevant to the selective headers; the method is based on emission-and-spectrum analysis of lubricant oil for cutting gear, and analysis of mechanical vibration in cutting drive. As an example of degradation of the cutting gear in a header SM-130K as per alteration of mechanical impurities content in lubricant oil and vibration intensity on the cutting gear mounting group has been reviewed.It is shown that the developed forecast model, based on statistical analysis of the results of the lubricant oil and parameters of mechanical vibrations, allows with 95% confidence probability to predict a moment of the cutting gear breakdown and schedule a timely maintenance.