Abstract
The continued growth of the general aviation fleet demands the need of forever improved preventive methods of failure analysis, in order to reduce the number of incidents or accidents. It has been proved that one possible solution to avoid unsafe conditions is the installation of new avionic systems. This article presents the method named IMFLAR — an Intuitive Method For a Logical Avionics Reliability, an analysis method for avionic systems installations based on a conceptual model of human factors and an artificial neural network application, giving an overview of these installations and analyzing the involved risk factors. This is a new preventive approach that establishes a relationship between unsafe characteristics observed during the installation of avionic systems and an operational database of incidents and accidents, in order to provide a framework to make aviation safer. Additionally, this article describes the steps to obtain the necessary parameters that ought to be used to avoid unsafe conditions for a modification that installs an avionics system in the aircraft.
Highlights
Nowadays, general aviation is the category that covers the largest number of aircrafts in operation.Aircraft accidents are responsible for innumerous losses, claiming lives and causing large material damages
This study indicates that aircraft equipped with Glass Cockpit are more susceptible to accidents during instrument flight (NTSB, 2010)
From direct observation of the data presented in the public database of modifications, the PST group analyzed data of the certification processes during the year 2009 and concluded that the Terrain Awareness and Warning System (TAWS)/Global Navigation Satellite System (GNSS) installations accounted for about 50% of the total number of modifications corresponding to approximately 80% of the cases of major changes in electrical and electronic systems, presented to be certified by ANAC
Summary
General aviation is the category that covers the largest number of aircrafts in operation (e.g., business aircraft, charter flight and agricultural).Aircraft accidents are responsible for innumerous losses, claiming lives and causing large material damages. The Brazilian General Aviation fleet is increasing, and there is a continuous technological advance that implies in crescent risk factors for incidents or accidents. For this reason, it is necessary the use of new prevention methods. It is necessary the use of new prevention methods These methods must analyze relationships among the triad man-machineenvironment: where man represents human factors; machine symbolizes aircraft, systems and ground/air facilities; and environment is related to climatic and environmental factors. The triad man-machine-environment summarizes some fundamental elements in investigation of aircraft accidents and is the theme of the Centre for Research and Prevention of Aeronautical Accidents of Brazilian Air Force (CENIPA – Centro de Investigação e Prevenção de Acidentes Aeronáuticos)
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