Corrosion can compromise the integrity of aircraft structures from "summary" of Aircraft Structures & Systems EASA Module 13 B2 by
Corrosion, an electrochemical process, poses a significant threat to the structural integrity of aircraft. When metal components are exposed to moisture, oxygen, and other environmental factors, they can begin to deteriorate over time. This deterioration weakens the affected parts and can ultimately lead to catastrophic failure if left unchecked. Aircraft structures are designed to withstand a variety of stresses during flight, including aerodynamic forces, turbulence, and landings. However, when corrosion compromises the structural integrity of these components, their ability to bear these stresses is greatly diminished. This can result in cracks, fractures, or even complete structural failure, putting the safety of the aircraft and its occupants at risk. One of the most concerning aspects of corrosion in aircraft structures is that it is often not readily visible. Corrosion can occur internally, within the layers of a component, making it difficult to detect without specialized equipment and techniques. This means that regular inspections and maintenance procedures are essential to identify and address corrosion before it compromises the structural integrity of the aircraft. There are several factors that can contribute to the development of corrosion in aircraft structures. These include exposure to salt water, acidic environments, and high humidity levels, as well as damage to protective coatings or sealants. In addition, certain materials used in aircraft construction, such as aluminum and magnesium, are particularly susceptible to corrosion. To mitigate the risks associated with corrosion, aircraft operators must adhere to strict maintenance schedules and inspection protocols. These protocols typically involve routine visual inspections, non-destructive testing, and the application of protective coatings or treatments to prevent corrosion from occurring. By proactively addressing corrosion issues, operators can ensure the continued airworthiness of their aircraft and reduce the likelihood of structural failures due to corrosion.
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