An alteration made in accordance with an aircraft specification is categorized as what type of alteration?

An alteration made in accordance with an aircraft specification is categorized as a minor alteration because it does not significantly affect the aircraft's performance, operational limitations, or safety. Minor alterations are generally those changes that do not require extensive documentation or FAA approval, as they are usually straightforward modifications that align with existing specifications.

In aviation regulations, minor alterations often involve adjustments or additions that fall under established guidelines and do not necessitate structural redesign or changes to the aircraft's type design. Such alterations still must meet the standards of airworthiness but can generally be completed and documented more easily than major alterations, which would require more substantial engineering analysis and FAA oversight.

This distinction is important for maintenance personnel and inspectors to ensure changes are classified appropriately, supporting compliance with regulations and maintaining safety in aircraft operation.