Part 145 can be used for own use; only 21-year-olds can sell.

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Multiple Choice

Part 145 can be used for own use; only 21-year-olds can sell.

The question checks how Part 145 drives who can maintain and who can sell maintenance-related services or parts. Part 145 approval lets a maintenance organization perform work on aircraft it operates for its own use, not just work for external customers, as long as all procedures and quality controls are followed. The second part of the statement says that selling is restricted to individuals 21 years or older. The option that combines both ideas—that Part 145 can be used for own use and that only someone aged 21 or over can sell—matches what the item is testing: it pairs the ability to perform maintenance for one's own use with a specific age condition for selling. The other choices would misstate either the use case of Part 145 (not limited to external sales) or the applicable age condition for selling.

The question checks how Part 145 drives who can maintain and who can sell maintenance-related services or parts. Part 145 approval lets a maintenance organization perform work on aircraft it operates for its own use, not just work for external customers, as long as all procedures and quality controls are followed. The second part of the statement says that selling is restricted to individuals 21 years or older. The option that combines both ideas—that Part 145 can be used for own use and that only someone aged 21 or over can sell—matches what the item is testing: it pairs the ability to perform maintenance for one's own use with a specific age condition for selling. The other choices would misstate either the use case of Part 145 (not limited to external sales) or the applicable age condition for selling.

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