Does the airworthiness certificate of an aircraft expire?

The airworthiness certificate of an aircraft does not expire as long as the aircraft is maintained in an airworthy condition and continues to meet the requirements established by regulatory authorities. An airworthiness certificate is a statement by the aviation authority that the aircraft conforms to its approved type design and is in a condition for safe operation.

As long as regular maintenance is performed, inspections are up to date, and any necessary repairs have been made, the certification remains valid. Additionally, owners must comply with the ongoing requirements for maintenance and inspection specified in the regulations, which ensure that the aircraft continues to meet the necessary safety standards.

The other options suggest misunderstandings about the conditions under which an airworthiness certificate might be voided or need to be renewed. For instance, it is not tied to a set time period like a year, nor is it dependent solely on the sale of the aircraft or its usage. Rather, the continuous maintenance of airworthiness is the key factor in determining the validity of the certificate.