Modifying a large passenger aircraft from its factory configuration involves alterations to various aspects of the interior and, less commonly, the exterior. This can range from simple cosmetic updates like seat fabric changes to complex structural modifications such as relocating galleys or installing new entertainment systems. Such undertakings are driven by the need to cater to specific operational requirements or to enhance passenger comfort and brand identity. An example of this would be an airline refitting its long-haul fleet with lie-flat seats in business class to better compete with rival carriers.
This practice holds considerable significance for airlines seeking to differentiate themselves in a competitive market. Customization allows for optimized cabin layouts that maximize passenger capacity or prioritize premium seating. Furthermore, adapting the interior environment can dramatically improve the passenger experience, fostering customer loyalty and brand recognition. Historically, airlines have gradually increased their focus on customization as a means of attracting and retaining passengers, moving beyond purely functional configurations to incorporate elements of style and luxury.