What is one of the requirements for each aircraft used for flight instruction?

A valid airworthiness certificate is essential for any aircraft used for flight instruction. This certificate confirms that the aircraft is maintained in a condition that meets safety standards set by aviation regulatory authorities. It ensures that the aircraft is safe for flight operations, which is especially critical in an instructional setting where student pilots are learning to fly.

Without a valid airworthiness certificate, the aircraft cannot legally operate for any form of flight, including training purposes. This requirement is part of the broader regulatory framework designed to ensure the safety of pilots and passengers alike. Maintaining compliance with airworthiness standards is fundamental in aviation, which prioritizes safety above all else.