During an annual inspection, if a defect is found that makes the aircraft unairworthy, what must the person disapproving do?

In the context of an annual inspection, if a defect is identified that renders the aircraft unairworthy, the person disapproving the aircraft must provide a written notice of the defect to the owner. This requirement is crucial as it ensures that the aircraft owner is formally informed about the specific issues that need to be addressed to bring the aircraft back to a condition that is safe for flight.

This written notice serves several important purposes: it documents the findings of the inspection, provides clarity on the nature of the defect, and establishes a record for both the owner and regulatory authorities. Additionally, this formal communication helps ensure that the aircraft owner understands their responsibilities regarding the necessary repairs and maintenance, and it facilitates accountability for the correction of the identified issue.

Furthermore, providing a written notice is also a best practice in aviation safety and compliance, as it helps prevent misunderstandings regarding airworthiness and repair obligations. The owner must then take appropriate action based on this notice, which is vital for maintaining the safety and airworthiness of the aircraft.