21L.A.66 Demonstration of compliance

• Regulation (EU) 2022/1358 found in: Initial Airworthiness and Environmental Protection (No 748/2012) Part-21 Part-21L (Jul 2024)

21L.A.66 Demonstration of compliance Regulation (EU) 2022/1358 (a)     The applicant for a major change to a type certificate shall demonstrate compliance with the applicable type-certification basis and the applicable environmental protection requirements as established and notified to the applicant by the Agency in accordance with point [21L.B.81](#_DxCrossRefBm1649097886), and shall provide the Agency with the means by which such compliance has been demonstrated. (b)     The applicant for a major change to a type certificate shall provide the Agency with a recorded justification of the means of compliance according to the compliance demonstration plan. (c)      When carrying out testing and inspections to demonstrate compliance in accordance with point (a), the applicant shall have verified and documented this verification prior to carrying out any test: 1.       for the test specimen, that: (i)      the materials and processes adequately conform to the specifications for the proposed changed type design; (ii)     the constituent parts of the products adequately conform to the drawings in the proposed changed type design; (iii)     the manufacturing processes, construction and assembly adequately conform to those specified in the proposed changed type design; and 2.       that the test and measuring equipment used for the test were adequate for the test and appropriately calibrated. (d)     The flight testing for the purpose of obtaining an approval of a major change to a type certificate shall be conducted in accordance with the methods for such flight testing specified by the Agency. The applicant for a major change to a type certificate shall make all the flight tests necessary to determine compliance with the applicable type-certification basis and the applicable environmental protection requirements. (e)     An applicant for a major change to a type certificate shall allow the Agency to: 1.       review any data and information related to the demonstration of compliance; 2.       witness or carry out any test or inspection conducted for the purpose of the demonstration of compliance; and 3.       if it is considered necessary, conduct a physical inspection of the first article of that product in the final changed configuration to verify the compliance of the design with the type‑certification basis and the applicable environmental protection requirements. (f)      Upon completion of the compliance demonstration, the applicant shall declare to the Agency that: 1.       they have demonstrated compliance with the type-certification basis and the applicable environmental protection requirements as established and notified to the applicant by the Agency in accordance with point [21L.B.81](#_DxCrossRefBm1649097886), according to the compliance demonstration plan; and 2.       no feature or characteristic has been identified that may make the changed product unsafe or environmentally incompatible for the uses for which certification is requested.