GM 21.A.20 Compliance demonstration process

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

GM 21.A.20 Compliance demonstration process ED Decision 2019/018/R Point [21.A.20](#_DxCrossRefBm1649096857) applies to the compliance demonstration process for a type certificate (TC) (or a restricted type certificate (RTC)) and, by cross references to Part 21 Subpart D and E, to compliance demonstration processes for major changes to a TC (see point [21.A.97](#_DxCrossRefBm1649096918)(b)(3)) and an STC (see point [21.A.115](#_DxCrossRefBm1649096852)(b)(4)). Applicants for a TC (or an RTC) should apply point [21.A.20](#_DxCrossRefBm1649096857) in full. Applicants for a major change to a TC (or an STC) are required (see points [21.A.97](#_DxCrossRefBm1649096997)(b)(3) and [21.A.115](#_DxCrossRefBm1649096999)(b)(4)) to apply point [21.A.20](#_DxCrossRefBm1649096918) as applicable to the change. ‘As applicable to the change’ means that: — the certification programme to be followed is the one prepared for the major change or STC in accordance with point [21.A.93](#_DxCrossRefBm1649096851), as accepted by EASA; and — the certification basis (consisting of the type-certification basis, operational suitability data (OSD) certification basis, and the environmental protection requirements) is the one established by EASA in accordance with point [21.A.101](#_DxCrossRefBm1649096998) and notified to the applicant in accordance with point [21.B.105](#_DxCrossRefBm1649096852) (for a major change to a TC) or point [21.B.109](#_DxCrossRefBm1649096852) (for an STC). Point [21.A.20](#_DxCrossRefBm1649096852) also applies to major changes to a TC or an STC approved by design organisation approval (DOA) holders under their privilege as per point [21.A.263](#_DxCrossRefBm1649096852)(c)(8) or (9) (see also points [21.A.97](#_DxCrossRefBm1649096997)(b)(3) and [21.A.115](#_DxCrossRefBm1649096852)(b)(4)). As in this case there is no application and no EASA involvement, point [21.A.20](#_DxCrossRefBm1649096997) should be applied with the following adaptions: — the certification programme to be followed, including the certification basis and the detailed means of compliance, should be almost identical to the one accepted by EASA for a major change or an STC when approved for the scope of the privilege as per point [21.A.263](#_DxCrossRefBm1649096857)(c)(8) or (9); it may differ in some aspects (e.g. the detailed description of the changes), but it should be shown to remain in the frame of the corresponding justification document; and — the means by which such compliance has been demonstrated (see point [21.A.20](#_DxCrossRefBm1649096996)(a)) and the final declaration of compliance (see point [21.A.20](#_DxCrossRefBm1649096852)(e)) should be kept on record and submitted to EASA only if EASA requests them during its DOA continued surveillance process. ##### GM 21.A.20 Compliance demonstration process *ED Decision 2019/018/R* Point [21.A.20](#_DxCrossRefBm485230347) applies to the compliance demonstration process for a type certificate (TC) (or a restricted type certificate (RTC)) and, by cross references to Part 21 Subpart D and E, to compliance demonstration processes for major changes to a TC (see point [21.A.97](#_DxCrossRefBm485230409)(b)(3)) and an STC (see point [21.A.115](#_DxCrossRefBm485230342)(b)(4)). Applicants for a TC (or an RTC) should apply point [21.A.20](#_DxCrossRefBm485230347) in full. Applicants for a major change to a TC (or an STC) are required (see points [21.A.97](#_DxCrossRefBm485230488)(b)(3) and [21.A.115](#_DxCrossRefBm485230490)(b)(4)) to apply point [21.A.20](#_DxCrossRefBm485230409) as applicable to the change. ‘As applicable to the change’ means that: — the certification programme to be followed is the one prepared for the major change or STC in accordance with point [21.A.93](#_DxCrossRefBm485230341), as accepted by EASA; and — the certification basis (consisting of the type-certification basis, operational suitability data (OSD) certification basis, and the environmental protection requirements) is the one established by EASA in accordance with point [21.A.101](#_DxCrossRefBm485230489) and notified to the applicant in accordance with point [21.B.105](#_DxCrossRefBm485230342) (for a major change to a TC) or point [21.B.109](#_DxCrossRefBm485230342) (for an STC). Point [21.A.20](#_DxCrossRefBm485230342) also applies to major changes to a TC or an STC approved by design organisation approval (DOA) holders under their privilege as per point [21.A.263](#_DxCrossRefBm485230342)(c)(8) or (9) (see also points [21.A.97](#_DxCrossRefBm485230488)(b)(3) and [21.A.115](#_DxCrossRefBm485230342)(b)(4)). As in this case there is no application and no EASA involvement, point [21.A.20](#_DxCrossRefBm485230488) should be applied with the following adaptions: — the certification programme to be followed, including the certification basis and the detailed means of compliance, should be almost identical to the one accepted by EASA for a major change or an STC when approved for the scope of the privilege as per point [21.A.263](#_DxCrossRefBm485230347)(c)(8) or (9); it may differ in some aspects (e.g. the detailed description of the changes), but it should be shown to remain in the frame of the corresponding justification document; and — the means by which such compliance has been demonstrated (see point [21.A.20](#_DxCrossRefBm485230487)(a)) and the final declaration of compliance (see point [21.A.20](#_DxCrossRefBm485230342)(e)) should be kept on record and submitted to EASA only if EASA requests them during its DOA continued surveillance process.