Why is the sector of air transportation so sophisticated? Which events led to the development of extremely reliable aircraft and navigation systems?
The aviation industry is statistically proved to be the safest form of transportation on Earth.
It sounds paradoxical if considering that flying is absolutely in contrast with the law of physics from a human perspective. However, since the advent of new technologies that have supported the overall growth for the whole last century, many accidents did occur due to a primary phase, considered transactional because some of the principles of flight were still unknown when using materials beyond their structural limits, before being able to build reliable and very sophisticated machine as it occurs now.
Air crashes usually has very big impact on media and sometimes to airlines rather than to the global economy, especially at presence of victims.
With the intention to avoid these negative impacts and because passengers are now more demanding in terms of safety, manufacturers along with their engineers have perfected those machines by working out state-of-art practices for building up new airplane, during maintenance routines and by focusing on the materials to use for each component of the plane that shows a high level of performance while under stress and reducing so components structural failure.
The current report aims to illustrate three air accidents that suffered of a structural failure while in-flight, and that have served as turning point for the whole industry to increase safety standards.
After illustrating which major changes those accidents produced to the industry, a section will discusses about the risks that the black market around counterfeit parts in aviation brings to passengers at first rather than to the overall economy in either cases they work efficiently or are the cause of an accident.
At last, the paper will discuss the effectiveness of one of the model commonly used to identify errors due to Human factors in an air accident, which is considered the major cause of accidents nowadays.
1) Air Accidents Due To Structural Failure
The structural failure of components used on board of aircraft can have different causes, it can be due to a faulty design; presence of voids rather than imperfection within the material used and least, but not last, the corrosive action that is common to all mechanical parts at some point close to the end of each component’s life time.1
Each of these causes can compromise the overall aircraft structure in the way that the affected component can no longer withstand the stress at normal operation circumstances. The outcomes can be a confined destruction of the mechanical part and up to a total disintegration of the airframe including everybody on board.
Once the causes of aircraft structural failure are identified, the modes of how components can be affected till generating a catastrophic disaster are fatigue, overload, corrosion and...