AMC1 21L.A.44(a) Compliance activities for a declaration of design compliance

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

AMC1 21L.A.44(a) Compliance activities for a declaration of design compliance ED Decision 2023/013/R COMPLIANCE-DEMONSTRATION PLAN The compliance-demonstration plan is a document that allows the declarant to manage and control the evolving aircraft design, as well as the process of compliance demonstration that enables EASA to investigate the root cause(s) in the event of a safety issue being discovered. In particular, the following information should typically be expected: — Identification of the relevant personnel that make decisions affecting airworthiness and environmental compatibility, and that will interface with EASA during the physical inspection (safety review) prior to the issuance of the flight conditions and during the first-article inspection. — A project schedule, including major milestones. — Subcontracting arrangements for design, environmental compatibility and/or production. Point [21L.A.43](#_DxCrossRefBm1649097270)(c)(2) ‘Configurations covered by the declaration’ An overview of the following: — architecture, functions, systems; — dimensions, design weights, payloads, design speeds; — engines and power/thrust rating; — materials and technologies; — cabin configuration aspects; — options (e.g. weight variants, power/thrust rating variants, optional avionics equipment items, brake options, tyre options, floats, skids). Point [21L.A.43](#_DxCrossRefBm1649097270)(c)(2) ‘Operating characteristics and limitations’ — operating speed limitations; — service ceiling, maximum airfield elevation; — limit load factors; — number of passengers, payload, range; — weight and centre-of-gravity (CG) envelope and fuel loading; — performance; — environmental envelope; — runway surface conditions; — other items, if considered to be more appropriate, that address the specific aeronautical product. The declarant should provide detailed information about the means of compliance with the applicable requirements identified under point [21L.A.45](#_DxCrossRefBm1649097834). This should include the following: — a compliance checklist addressing each requirement, the proposed means of compliance (see [Appendix A to AMC1 21L.A.44(a)](#_DxCrossRefBm1649097849) below for the relevant codes), and the related compliance document(s); — identification of industry standards, methodology documents, handbooks and any other acceptable means of compliance, specified in the airworthiness data sheet, that have been followed in the demonstration of compliance; — identification of methodologies and procedures laid down in Annex 16 to the Chicago Convention that have or will be followed in the demonstration of compliance with the applicable environmental protection requirements; — when the compliance demonstration involves testing, a description of the ground-and flight-test article(s), test method(s), test location(s), test schedule, test house(s), test conditions (e.g. limit load, ultimate load), as well as of the intent/objective(s) of the testing; and — when the compliance demonstration involves analyses/calculations, a description/ identification of the tools (e.g. name and version/release of the software programs) and methods used, the associated assumptions, limitations and/or conditions, as well as of the intended use and purpose. For every aspect related to airworthiness compliance mentioned above, the declarant should clearly identify whether the demonstration of compliance involves different means than those contained in the published AMC to the relevant CSs and any method (analysis or test) which is novel or unusual for the declarant. For every aspect related to compliance with the applicable environmental protection requirements mentioned above, the declarant should clearly identify whether the demonstration of compliance involves means that are described in ICAO Doc 9501 ‘Environmental Technical Manual’. ##### AMC1 21L.A.44(a) Compliance activities for a declaration of design compliance *ED Decision 2023/013/R* **COMPLIANCE-DEMONSTRATION PLAN** The compliance-demonstration plan is a document that allows the declarant to manage and control the evolving aircraft design, as well as the process of compliance demonstration that enables EASA to investigate the root cause(s) in the event of a safety issue being discovered. In particular, the following information should typically be expected: — Identification of the relevant personnel that make decisions affecting airworthiness and environmental compatibility, and that will interface with EASA during the physical inspection (safety review) prior to the issuance of the flight conditions and during the first-article inspection. — A project schedule, including major milestones. — Subcontracting arrangements for design, environmental compatibility and/or production. Point [21L.A.43](#_DxCrossRefBm485230761)(c)(2) ‘Configurations covered by the declaration’ An overview of the following: — architecture, functions, systems; — dimensions, design weights, payloads, design speeds; — engines and power/thrust rating; — materials and technologies; — cabin configuration aspects; — options (e.g. weight variants, power/thrust rating variants, optional avionics equipment items, brake options, tyre options, floats, skids). Point [21L.A.43](#_DxCrossRefBm485230761)(c)(2) ‘Operating characteristics and limitations’ — operating speed limitations; — service ceiling, maximum airfield elevation; — limit load factors; — number of passengers, payload, range; — weight and centre-of-gravity (CG) envelope and fuel loading; — performance; — environmental envelope; — runway surface conditions; — other items, if considered to be more appropriate, that address the specific aeronautical product. The declarant should provide detailed information about the means of compliance with the applicable requirements identified under point [21L.A.45](#_DxCrossRefBm485231330). This should include the following: — a compliance checklist addressing each requirement, the proposed means of compliance (see [Appendix A to AMC1 21L.A.44(a)](#_DxCrossRefBm485231345) below for the relevant codes), and the related compliance document(s); — identification of industry standards, methodology documents, handbooks and any other acceptable means of compliance, specified in the airworthiness data sheet, that have been followed in the demonstration of compliance; — identification of methodologies and procedures laid down in Annex 16 to the Chicago Convention that have or will be followed in the demonstration of compliance with the applicable environmental protection requirements; — when the compliance demonstration involves testing, a description of the ground-and flight-test article(s), test method(s), test location(s), test schedule, test house(s), test conditions (e.g. limit load, ultimate load), as well as of the intent/objective(s) of the testing; and — when the compliance demonstration involves analyses/calculations, a description/ identification of the tools (e.g. name and version/release of the software programs) and methods used, the associated assumptions, limitations and/or conditions, as well as of the intended use and purpose. For every aspect related to airworthiness compliance mentioned above, the declarant should clearly identify whether the demonstration of compliance involves different means than those contained in the published AMC to the relevant CSs and any method (analysis or test) which is novel or unusual for the declarant. For every aspect related to compliance with the applicable environmental protection requirements mentioned above, the declarant should clearly identify whether the demonstration of compliance involves means that are described in ICAO Doc 9501 ‘Environmental Technical Manual’.