Data from an aircraft specification used in the performance of an alteration would make the alteration

Data from an aircraft specification used in the performance of an alteration would make the alteration

• A. Major alteration requiring field approval
• B. Major alteration
• C. Minor alteration
• D. Routine modification

Answer: (C)

Using data from the aircraft’s specification means you’re following the approved design data for the change. Alterations done strictly according to approved data do not affect the airplane’s weight, balance, performance, or structural integrity beyond what the design already permits, so they’re considered minor. If you were to modify beyond approved data or change how the airplane behaves or its weight/balance, it would become a major alteration requiring formal approval. So this kind of alteration is categorized as a minor alteration.

Using data from the aircraft’s specification means you’re following the approved design data for the change. Alterations done strictly according to approved data do not affect the airplane’s weight, balance, performance, or structural integrity beyond what the design already permits, so they’re considered minor. If you were to modify beyond approved data or change how the airplane behaves or its weight/balance, it would become a major alteration requiring formal approval. So this kind of alteration is categorized as a minor alteration.