With Half Our Course Completed, What Do You Now See As Some Of The Main Reasons That Aviation – Essay Example
A major portion of the aviation accidents are caused either by human error or mechanical failure (Shappel et al., 228). Out of these, almost 60% -80%are attributable to human error alone (Shappel et al., 228). Unlike mechanical failure and other reasons, human error is difficult to qualify and quantify. Even when the error of the operator causes the accident, there are several back ground factors which accumulate and culminate in the action of the operator and in the accident (Shappel et al., 229).
Human Factors Analysis and Classification System (HFACS) was developed in the decade of 1990s to “investigate and classify human error” (Shappel et al., 228). HFACS prepares a sequential chain in which human error is understood at four levels namely, “(a) organizational influences, (b) unsafe supervision, ….(c) preconditions for unsafe acts, and (d) the unsafe act of operators” (Shappel et al., 228). Instead of blaming human error while deciding which are the causes of an aviation accident, there has to be a thorough enquiry into all the above-mentioned factors which might have accumulated the situation causing the accident. Ascend and descent accidents constitute a significant percentage of aviation accidents caused by human error. Mechanical failure is the second biggest factor causing an aviation accident. Design errors, faulty microstructure of the aircraft and corrosion have been found to be the major problems causing mechanical errors (Findlay and Harrison, 18). Bad weather causing poor visibility, mistakes and failure of communication like a wrong information from the air traffic control, poor maintenance, and sabotage like that happened in the World Trade Centre disaster have been some other important causes, to name a few.
Findlay, S.J and Harrison, N.D., Why Aircraft Fail?, Materials Today, November 2002.
Shappel et al., Human Error and Commercial Aviation Accidents: An Analysis Using the Human Factors Analysis and Classification System, The Journal of Human Factors and Ergonomics Society, 49:227, 2007.