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Thermal defects of avionic turbojet engines

Szczepankowski A., Szymczak J.

Prace Naukowe Instytutu Technicznego Wojsk Lotniczych

2016

nr 38

33--45

The paper analyzes the most frequent reasons associated with operation of avionic turbojet engines (ATE) and leading to initiation of thermal defects affecting turbine units. These reasons are illustrated with examples of gradual deteriorations revealed on surfaces of turbine parts and subassemblies and defected during endoscopic examinations of propelling drives. Attention is paid to various design and technological improvements that are implemented to counteract such deteriorations. The analysis is focused on mistakes that are committed during operation, repairs or manufacturing of avionic turbojet engines and that may affect safety of aircraft operations.