What is the Certificate of Airworthiness?

The Certificate of Airworthiness is fundamentally recognized as an official document that certifies an aircraft is fit for flight and meets the required safety standards established by regulatory authorities. This certificate assures that the aircraft has been inspected, and deemed airworthy, which ensures the safety of both the crew and passengers aboard.

The correct choice indicates that the Certificate of Airworthiness serves as the evidence for the airworthiness of the aircraft, meaning it demonstrates that the aircraft conforms to the approved design and is in a condition for safe operation. This certificate is typically valid for a longer duration than just one year; it usually remains valid as long as the aircraft meets maintenance standards and continues to comply with regulations. As for its issuance, it is not contingent solely on yearly checks but reflects ongoing compliance with applicable regulations.

While other answers might touch on aspects related to the operational permissions and condition reports after overhauls, they do not encapsulate the full scope of what a Certificate of Airworthiness embodies. The Certificate is not merely a one-time statement and is not issued after each overhaul but is continually associated with the aircraft's compliance with maintenance and safety standards. The focus should be on the overarching role it plays in ensuring safety for flight operations.