Supplementary type certification

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Supplemental Type Certificate ( english Supplemental Type Certificate , STC ) gem. EASA Part 21, Section A, Subpart E of Regulation (EC) No. 1702/2003 is an amendment to the type certification of an aircraft, an engine or a propeller approved by an aviation authority . These changes can affect individual aircraft, engines and propellers or entire series.

In Europe

In the European area, the European Aviation Safety Agency is responsible for testing and issuing supplementary type certificates. The prerequisite for such an application and the issuance of an STC is certification as an approved development company in accordance with EASA Subpart 21 J. The applicant does not necessarily have to be the holder of the original type certificate. Since a supplementary type certificate (STC) can be obtained from any development organization, the applicant must also provide evidence that the holder of the type certificate has no technical objections to the change applied for. In addition, the applicant for an STC must be able to demonstrate the existence of an arrangement with the type-certificate holder, which includes that they will both work together to maintain the airworthiness of the modified product. A change can be a minor change, some of which can be approved by the company itself, or a major change that requires an approval by EASA.

Individual evidence

  1. EASA Supplemental Type Certificates
  2. Commission Regulation (EC) No 1702/2003 (PDF)
  3. Martin Hinsch: Industrial aviation management: technology and organization of aviation companies. Springer, Heidelberg / Dordrecht / London / New York 2010, ISBN 978-3-642-12488-4 , p. 80.