Regulations Governing the Certification for Aviation Products, Appliances and Parts Article 21
In the case of a major change in type design, the applicant must submit substantiating data and necessary descriptive data, along with a statement that the changed type design complies with the requirement stipulated in Article 23 of the regulations herein. The major change of type design can only be undertaken after CAA approval. In addition, the holder of type certificate shall return the original type certificate to CAA and apply for revising type certificate, if deemed necessary.
中文原文 航空產品與其各項裝備及零組件適航檢定管理規則第21條
重大設計變更，型別檢定證持有人應向民航局提交相關證明文件或技術資料並聲明變更後之產品符合第二十三條之規定，經民航局核准後始得為之。
必要時，型別檢定證持有人應繳回原型別檢定證申請換發。
必要時，型別檢定證持有人應繳回原型別檢定證申請換發。