Which statement about 14 CFR Part 43 is accurate?

• A. It sets the minimum flight crew responsibilities.
• B. It governs pilot medical certification.
• C. It describes flight planning procedures for cross-country flights.
• D. It describes maintenance, preventative maintenance, rebuilding, and alteration of certificated aircraft.

Answer: (D)

Part 43 regulates how maintenance and related work is performed on certificated aircraft, including maintenance, preventive maintenance, rebuilding, and alteration, and it covers who may perform that work and how it must be documented. That scope is exactly what the statement describes, so it’s the best match for what Part 43 covers. The other options point to areas handled by other parts of the regulations: setting flight crew responsibilities, medical certification, and flight planning procedures are governed outside Part 43, in different parts focused on operations, medical requirements, and flight planning rules.