Major Alteration is defined as what?

Major Alteration is defined as what?

• A. An alteration not listed in the aircraft specifications that might affect weight, balance, performance, or airworthiness; or not done to accepted practices or cannot be done by elementary operations
• B. A minor cosmetic change
• C. A routine maintenance procedure
• D. An alteration listed in the specifications

Answer: (A)

Major alterations are changes to an aircraft that aren’t covered by the approved aircraft specifications and that could affect weight and balance, performance, or airworthiness; or changes that aren’t performed to accepted practices or can’t be done by routine, elementary operations. This matters because such changes require FAA-approved data or field approvals to ensure the aircraft remains airworthy. Think of it this way: cosmetic tweaks or routine maintenance aren’t considered major because they don’t change how the aircraft weighs, balances, or flies, and they follow standard, accepted procedures. An alteration that is already specified in the aircraft’s design and approved data isn’t a major alteration either. If a change could impact how the plane operates or its certification, it’s treated as major and must go through proper authority and documentation.

Major alterations are changes to an aircraft that aren’t covered by the approved aircraft specifications and that could affect weight and balance, performance, or airworthiness; or changes that aren’t performed to accepted practices or can’t be done by routine, elementary operations. This matters because such changes require FAA-approved data or field approvals to ensure the aircraft remains airworthy.

Think of it this way: cosmetic tweaks or routine maintenance aren’t considered major because they don’t change how the aircraft weighs, balances, or flies, and they follow standard, accepted procedures. An alteration that is already specified in the aircraft’s design and approved data isn’t a major alteration either. If a change could impact how the plane operates or its certification, it’s treated as major and must go through proper authority and documentation.