FAR Part 39 governs which of the following?

FAR Part 39 governs which of the following?

• A. Airworthiness Directives
• B. Maintenance, Preventative Maintenance, Rebuilding, and Alteration
• C. Operating limitations
• D. Flight crew qualifications

Answer: (A)

Airworthiness Directives are mandatory FAA actions to fix unsafe conditions in aircraft, engines, propellers, or certain appliances. FAR Part 39 specifically governs these directives, and they require compliance within specified times, often through inspections, repairs, or required modifications. Some ADs are emergency actions issued when there’s an immediate safety risk. This is distinct from routine maintenance, preventive maintenance, rebuilding, and alteration, which are covered under other regulations (such as maintenance-related activities in a different part). Operating limitations and flight crew qualifications also fall under other regulatory areas, not ADs.

Airworthiness Directives are mandatory FAA actions to fix unsafe conditions in aircraft, engines, propellers, or certain appliances. FAR Part 39 specifically governs these directives, and they require compliance within specified times, often through inspections, repairs, or required modifications. Some ADs are emergency actions issued when there’s an immediate safety risk.

This is distinct from routine maintenance, preventive maintenance, rebuilding, and alteration, which are covered under other regulations (such as maintenance-related activities in a different part). Operating limitations and flight crew qualifications also fall under other regulatory areas, not ADs.