Maintenance of aircraft engines is crucial for ensuring the safety and efficiency of their operation. Modern aircraft engines require precise maintenance and regular inspections to maintain their reliability and safety. One of the most common methods for assessing the condition of aircraft engines is borescope inspection, which allows inspection of hard-to-reach parts without the need for disassembly and provides valuable information about the condition of critical areas of the engine, aiding in determining appropriate maintenance activities. The work presents a detailed methodology for borescope inspection, including appropriate inspection intervals and visual examination of damaged components.
As part of the thesis, a comparison is made between three different but comparable turbofan engines CF34-8C5. The engines were installed on three different aircraft, performing the same type of operations for the same airline. Borescope inspection as part of line maintenance included examination of the combustion chamber and high-pressure turbine stage on three different engines with 8980, 15032, and 19785 cycles performed. The study presents various damages to the examined parts, based on which the necessary replacements of worn parts are recommended.
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