When must compliance with an Airworthiness Directive take place?

Compliance with an Airworthiness Directive (AD) must take place as specified in the directive itself. An AD is a legally enforceable regulation issued by the Federal Aviation Administration (FAA) that requires aircraft owners and operators to address safety issues related to the design, production, or operational conditions of an aircraft. Each AD will detail the required compliance time frame, which could vary based on the severity of the issue, the type of aircraft affected, or specific maintenance requirements.

The time frames set forth in the AD are dictated by the safety concerns identified and are designed to ensure that any potential hazards are mitigated promptly and effectively. Adherence to these timelines is crucial for maintaining the airworthiness and safety of the aircraft. By following the specified compliance timeline in the AD, aircraft operators help ensure the continued safety and reliability of aviation operations.

While other options suggest different time frames or conditions for compliance, they do not reflect the regulatory authority and specific instructions embedded in the AD itself.