FAQ n.21903

How do I know whether an STC has been grandfathered?


Any STC approved or validated by an EU member state before the establishment of EASA is deemed to be 'grandfathered' under Regulation 1702/2003 Article 2 (3)(a). Unfortunately, a central repository of such approvals does not yet exist. Please contact the STC holder directly or review the websites of our member states' national aviation authorities.

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