Abstract: The subject of this research is the ensuring of reliable professional activity of the flight and engineer technical personnel of aircraft under the impact of aircraft noise. The object is the functional reliability of operator of the aviation ergatic system. The author examine such aspect of the topic as the analysis of reliability of professional activity of aircraft flight-lifting and engineer technical personnel that ensures the employment of modern aircraft in execution of their professional responsibilities at workplace, including the use of individual and collective protection from noise. The research methodology combines the methods of reliability theory, acoustics engineering, aeronautical acoustics, system analysis and probability theory. The main conclusions of the study consist in the positions that aircraft noise is a potential source of danger, which substantiates the increased risk of erroneous actions of aviation professionals and development of professional diseases that result in the early professional disqualification. Authors’ special contribution into the research of this topic lies in acquisition of the quantitative estimates regarding the potential unreliability of actions flight-lifting and engineer technical personnel.

Abstract: The research subject is acoustic safety of aviation specialists’ activities, including the analysis of the peculiarities of use of the audio channel of the aviation ergatic system management, the functional reliability of the operator of the aviation ergatic system, the sources of aviation noise, the ways of modeling of the noise impact on the reliability of the operator, the crews of modern aircrafts and the physiological mechanisms of impact of aviation noise on the operator of the aviation ergatic system. The novelty of the study is determined by its system character and orientation on the detection of the problems of safety of professional activities of aviation specialists, conditioned by the impact of aviation noise. The research methodology combines the methods of the reliability theory, hygienic studies, occupational medicine, evidentiary medicine, mathematical statistics and engineering acoustics. The authors formulate the particular problems of safety of professional activities of aviation specialists, determined by the impact of aviation noise. The study shows that aviation noise is the source of potential danger, causing the higher risk of misactions of aviation specialists and the danger of occupation diseases, causing the early professional disqualification. The research results show the urgent necessity to develop and implement special means and methods of improvement of acoustic safety of aviation specialists’ professional activities as an integral element of the safe operation of air transport.