Major Repair is defined as what?

• A. A repair that, if improperly done, might affect weight, balance, structural strength, performance, or airworthiness; or not done to accepted practices or cannot be done by elementary operations
• B. A cosmetic repair
• C. A routine maintenance task
• D. A repair that never affects airworthiness

Answer: (A)

Major repairs are those repairs that, if not done properly, could affect critical safety and airworthiness factors—such as weight and balance, structural strength, or overall performance—and must be performed to accepted practices or by someone with the proper skills. This is why the option describing a repair that could impact weight, balance, structural strength, performance, or airworthiness (and must follow approved methods or be doable only by qualified operations) is correct. Cosmetic repairs, routine maintenance, and repairs that would never affect airworthiness do not meet this definition, since they don’t carry the same potential safety or airworthiness impact.