What publication lists all of the ADs that apply to aircraft, engines, propellers, or appliances?

• A. AC 39-6 Summary of Airworthiness Directives
• B. AC 43-13-1B
• C. FAR Part 39
• D. FAA Circular 100

Answer: (A)

The main idea is knowing where to find a complete, current list of Airworthiness Directives. AC 39-6, Summary of Airworthiness Directives, is the reference that provides a consolidated view of all ADs that apply to aircraft, engines, propellers, or appliances. It’s updated as new ADs are issued, so you can quickly see which directives are in effect and their applicability to specific models or components. FAR Part 39 governs how ADs are issued and enforced, but it isn’t a single catalog of every active AD. The other publications mentioned cover different maintenance guidance and aren’t the source for a comprehensive AD listing. So the best source for the full AD list is AC 39-6.