Abstract
Currently in Poland about 2,500 different engine types are installed on the aircraft. In the years 2008-2016 powerplants failures caused nearly 600 aviation events. Aborted flight or emergency landing, especially in the case of aircraft powered by a single piston engine occurred. The objective of the article was to determine the failure causes and assessment of their impact on the flight safety. Engine faults were assigned to particular types of powerplants, for example turboshaft, piston, etc. Causes of the failures were examined, assigning ATA chapter to each of them. Also human factor was taken into account. According to the ICAO methodology, aviation safety engine systems essential for flight safety and theirs impact on the safety risk was determined. The results of the analyzes presented in this article are useful for managing the national aviation safety and supervising SMS in aviation organizations. The article shows that preventive measures to raise the level of aviation safety should be taken. This is the first comprehensive analysis of the powerplants failure causes and an evaluation of their influence on the level of aviation safety in Poland.
Highlights
The hitherto operational experience indicate that to the greatest extent powerplant determines airplanes and helicopters safety of flying
In order to analyse various types of the powerplants influence on flight safety, data contained in the ECCAIRS were reviewed
Tab. 2 from [13] has been utilized in order to evaluate safety risk as a consequence of a potential event caused by any powerplant system
Summary
The hitherto operational experience indicate that to the greatest extent powerplant determines airplanes and helicopters safety of flying. Still significant number of aircraft engines exploitation is a subject of the guaranteed by manufacturers service life (so-called “hard time”) [8, 9] Such a time is usually determined by the manufacturers carrying out test-bed endurance programs where the engine is run day and night, cycling through a specified and purposely over-punishing schedule of so many hours at full power, so many at idle, so many at cruise. After a guaranteed by manufacturer life the engine is subject of a cassation The advantage of this method of operation is the possibility of a relatively simple overhaul and maintenance tasks planning, spare parts purchasing and new engines acquisition scheduling. The aircraft engines exploitation practice is to maintain the required level of the flight safety For this purpose, in addition to the assessment of the engine’s technical condition, identification of its installations significantly affect the flying safety is carried out. During the encoding of events caused by powerplant, recorded in the data base ECCAIRS as SCF-PP, the authors used the numbering system identical for large aircraft, small and helicopters
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