If a defect is found during an inspection making the aircraft unairworthy, what must the disapproving person do?

When a defect is discovered during an inspection that renders an aircraft unairworthy, the disapproving person is required to provide a written notice of the defect to the owner. This written notice serves as a formal record detailing the specific issues that led to the determination of unairworthiness. It ensures that the owner is fully informed about the necessary repairs or actions needed to restore the aircraft to a condition that meets all regulatory safety standards.

Providing a written notice not only establishes accountability but also protects both the owner and the inspecting individual by documenting the reason for the unairworthy status. This documentation is critical for the owner as it will guide decision-making regarding maintenance actions and compliance with regulatory requirements. Moreover, having a written notice promotes transparency and helps avoid misunderstandings about the status and specifics of the aircraft's condition.