Beschreibung:
The article describes the main elements of IT system supporting the maintenance of aircraft with special consideration of functional digital model of the aircraft and its components and influence on the quality of fleet management. Discussed and illustrated: 1) the construction of the functional structure of the aircraft and the maintenance program in the IT support system; 2) IT systems supporting the maintenance of military aircraft. It was shown that with proper coherence and completeness of data in the IT support system, we obtain a higher quality of aircraft maintenance, including improved management of the fleet, quality of technical services and safety of missions.