AMC1 21L.A.86 Requirements for approval of a supplemental type certificate

• ED Decision 2023/013/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

AMC1 21L.A.86 Requirements for approval of a supplemental type certificate ED Decision 2023/013/R (a)     For supplemental type certificates (STCs) approved by EASA, the AMC and GM to point [21L.A.25](#_DxCrossRefBm1649097803) should be followed by the applicant. (b)     In accordance with point [21L.A.86](#_DxCrossRefBm1649097930)(b), the compliance-demonstration process must always cover the specific configuration(s) in the type certificate (TC) to which the STC under approval is applied. This (these) configuration(s) should be defined by the change to the type certificate considering the type certificate data sheet (TCDS) and the relevant optional installations. The demonstration of compliance covers this (these) applicable specific configuration(s). Consequently, the approval of the STC 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 the future. (c)      For STCs approved by the design organisation approval (DOA) holder under its privilege as per point [21.A.263](#_DxCrossRefBm1649096918)(c)(9) of Annex I (Part 21), the process described under [AMC No 2 to 21.A.263(c)(5), (8) and (9)](#_DxCrossRefBm1649097059) applies. ##### AMC1 21L.A.86 Requirements for approval of a supplemental type certificate *ED Decision 2023/013/R* (a) For supplemental type certificates (STCs) approved by EASA, the AMC and GM to point [21L.A.25](#_DxCrossRefBm485231299) should be followed by the applicant. (b) In accordance with point [21L.A.86](#_DxCrossRefBm485231426)(b), the compliance-demonstration process must always cover the specific configuration(s) in the type certificate (TC) to which the STC under approval is applied. This (these) configuration(s) should be defined by the change to the type certificate considering the type certificate data sheet (TCDS) and the relevant optional installations. The demonstration of compliance covers this (these) applicable specific configuration(s). Consequently, the approval of the STC 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 the future. (c) For STCs approved by the design organisation approval (DOA) holder under its privilege as per point [21.A.263](#_DxCrossRefBm485230409)(c)(9) of Annex I (Part 21), the process described under [AMC No 2 to 21.A.263(c)(5), (8) and (9)](#_DxCrossRefBm485230550) applies.