21L.A.226 Declaration of design compliance of major repair designs

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

21L.A.226 Declaration of design compliance of major repair designs Regulation (EU) 2022/1358 (a)     Prior to incorporating or embodying or agreeing with a production organisation to incorporate or embody a major repair design to an aircraft for which design compliance has been declared in accordance with [Subpart C](#_DxCrossRefBm1649097717) of this Annex, the declarant shall declare that the design of the major repair complies with the detailed technical specifications and the applicable environmental protection requirements with which compliance had been declared according to point [21L.A.43](#_DxCrossRefBm1649097270). (b)     The declaration of design compliance shall be made in a form and manner established by the Agency. (c)      The declaration shall contain at least the following information: 1.       the name of the person submitting the declaration, and their address/place of business; 2.       the declaration reference number of the aircraft to which the major repair design relates; 3.       a unique reference for identifying the major repair design; 4.       indication of the detailed technical specifications and the applicable environmental protection requirements with which the compliance of the aircraft had been declared by the declarant according to point [21L.A.43](#_DxCrossRefBm1649097270); 5.       a signed statement made under the sole responsibility of the person making the declaration that the design of the major repair is in compliance with the detailed technical specifications and the applicable environmental protection requirements referred to in point (4), according to the compliance demonstration plan referred to in point (d)(3); 6.       a signed statement made under the sole responsibility of the person making the declaration that no features or characteristics have been identified by that person that may make the aircraft unsafe or environmentally incompatible for the intended use; 7.       a description of the damage and the repair design identifying the configuration of the type design upon which the repair is made; 8.       identification of all the areas of the type design and the approved manuals that are changed or affected by the repair design. (d)     The declarant that designs a major repair shall submit the declaration referred to in point (c) to the Agency. Together with this declaration, the declarant shall provide to the Agency: 1.       a description of the major repair; 2.       basic data about the major repair, including the operating characteristics, design features and any limitations; 3.       a compliance demonstration plan detailing the means for compliance demonstration that was followed during the compliance demonstration; 4.       recorded justifications of compliance within compliance data obtained from the compliance activities that have been conducted according to the compliance demonstration plan; 5.       the means by which compliance with the detailed technical specifications and the applicable environmental protection requirements with which the declarant had declared that aircraft compliance according to point [21L.A.43](#_DxCrossRefBm1649097270) has been demonstrated; 6.       where compliance is demonstrated by carrying out tests, a recorded justification of the conformity of the test articles and equipment, demonstrating: (i)      for the test specimen, that: (A)     the materials and processes adequately conformed to the specifications for the design; (B)     the constituent parts of the products adequately conformed to the drawings in the design; and (C)     the manufacturing processes, construction and assembly adequately conformed to those specified in the design; (ii)     that the test and measuring equipment used for the tests were adequate for the tests and appropriately calibrated; 7.       reports, results of inspections or tests that the declarant found necessary to determine that the aircraft complies with the detailed technical specifications and the applicable environmental protection requirements. (e)     The declaration of a major repair to a declaration of design compliance shall be limited to the specific configuration(s) in the declaration of design compliance to which the change relates.