What is a key requirement for major alterations on aircraft?

The requirement that the work needs to adhere to GACA-approved technical data is crucial for ensuring safety and regulatory compliance in aircraft maintenance and alterations. GACA, the General Authority of Civil Aviation in Saudi Arabia, establishes standards and requirements for aircraft modifications to ensure they are conducted safely and effectively.

Using GACA-approved technical data guarantees that the alterations are based on reliable engineering principles and validated procedures. This data typically includes specifications, guidelines, and methods that have been rigorously reviewed and approved by the regulatory body. Adhering to such data mitigates risks associated with structural or operational changes to the aircraft, thereby safeguarding not only the aircraft itself but also the safety of its operations and the integrity of air travel within the jurisdiction regulated by GACA.

Other options, while they may pertain to good practices in aviation maintenance, do not represent the fundamental regulatory requirement necessary for major alterations. Enhancements in performance or pilot capabilities, while beneficial, are secondary considerations and do not directly relate to compliance with the governing regulations that ensure alterations are performed correctly and safely. Additionally, the involvement of certified engineers, while crucial for maintaining oversight and quality, is not the primary regulatory framework that governs the acceptability of the alteration process itself.