AMC 21.A.97 Requirements for the approval of a major change

• ED Decision 2019/018/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

AMC 21.A.97 Requirements for the approval of a major change ED Decision 2019/018/R 1.       For major changes approved by EASA, the applicant should use all the [AMC 21.A.20(c)](#_DxCrossRefBm1649096960), as well as the [GM 21.A.20](#_DxCrossRefBm1649096963). 2.       For the application of point [21.A.97](#_DxCrossRefBm1649096997)(c), see [GM 21.A.21(b), 21.A.95(c), 21.A.97(c), 21.A.115(c), 21.B.103(b), 21.B.107(b) and 21.B.111(b)](#_DxCrossRefBm1649097005). 3.       In accordance with point [21.A.97](#_DxCrossRefBm1649096997)(c), the compliance demonstration process always takes into account the specific configuration(s) in the type certificate (TC) to which the major change under approval is applied. These configurations may be defined by type models/variants or by design changes to the type design. The demonstration of compliance covers these applicable specific configurations. Consequently, the approval of the major change excludes any other configurations, in particular those that already exist but are not considered in the compliance demonstration process, as well as those that may be certified in future. 4.       For major changes approved by the design organisation approval (DOA) holder on the basis of their privilege as per point [21.A.263](#_DxCrossRefBm1649096918)(c)(8), the process described under [AMC No 2 to 21.A.263(c)(5), (8) and (9)](#_DxCrossRefBm1649097059) applies. ##### AMC 21.A.97 Requirements for the approval of a major change *ED Decision 2019/018/R* 1. For major changes approved by EASA, the applicant should use all the [AMC 21.A.20(c)](#_DxCrossRefBm485230451), as well as the [GM 21.A.20](#_DxCrossRefBm485230454). 2. For the application of point [21.A.97](#_DxCrossRefBm485230488)(c), see [GM 21.A.21(b), 21.A.95(c), 21.A.97(c), 21.A.115(c), 21.B.103(b), 21.B.107(b) and 21.B.111(b)](#_DxCrossRefBm485230496). 3. In accordance with point [21.A.97](#_DxCrossRefBm485230488)(c), the compliance demonstration process always takes into account the specific configuration(s) in the type certificate (TC) to which the major change under approval is applied. These configurations may be defined by type models/variants or by design changes to the type design. The demonstration of compliance covers these applicable specific configurations. Consequently, the approval of the major change excludes any other configurations, in particular those that already exist but are not considered in the compliance demonstration process, as well as those that may be certified in future. 4. For major changes approved by the design organisation approval (DOA) holder on the basis of their privilege as per point [21.A.263](#_DxCrossRefBm485230409)(c)(8), the process described under [AMC No 2 to 21.A.263(c)(5), (8) and (9)](#_DxCrossRefBm485230550) applies.