What is the primary purpose of Airworthiness Directives?

The primary purpose of Airworthiness Directives (ADs) is to correct an unsafe condition in aircraft. The Federal Aviation Administration (FAA) issues these directives when it is determined that an unsafe condition exists in a specific aircraft, engine, propeller, or appliance. Following an AD is crucial for ensuring the safety of the aircraft, as it mandates necessary inspections, modifications, or repairs that mitigate safety risks.

By addressing these safety concerns, ADs help prevent accidents or incidents that could arise from unresolved issues. The focus on safety is paramount in aviation, and ADs serve as essential directives to maintain the airworthiness of aircraft in operation.

Improving aircraft performance and enhancing fuel efficiency are not the primary focus of ADs, even though addressing safety issues can sometimes have secondary effects on performance. Similarly, while maintenance schedules are important for aircraft operations, they are typically not defined by ADs, which primarily deal with safety-related modifications or inspections.