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UK Civil Aviation Authority

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Approval of Non-Part 21 supplemental type certificates

List of UK Non-Part 21 Supplemental Type Certificates.

Supplemental Type Certificates (STCs) are issued to ratify approvals of major changes or major modifications to aeronautical products or any change to the approved type design from applicants other than the Type Certificate Holder or Type Approval Holder.

Approved non-Part 21 STCs are listed on this page.