AMC1 21.B.120(d) Initial certification procedure

• ED Decision 2023/014/R found in: Initial Airworthiness and Environmental Protection (748/2012) Part-21 Part-21L (Jul 2024)

AMC1 21.B.120(d) Initial certification procedure ED Decision 2023/014/R ISSUE OF THE LETTER OF AGREEMENT (a)     Unless otherwise agreed by the competent authority, no production before the issue of the letter of agreement may be accepted under Part 21 Section A, Subpart F. (b)     The agreement should include or reference a predefined plan of inspection points established as part of the production inspection system and agreed with the competent authority to be used as a basis for the inspections described in points [21.A.129](#_DxCrossRefBm1649097114) and [21.B.120](#_DxCrossRefBm1649097534)(a) and their associated AMC and GM. The plan should clearly identify the inspection points, places, inspection subjects (materials, processes, tooling documentation, human resources, etc.), as well as the focal points and the method of communication between the production organisation and the competent authority. (c)      The competent authority should detail the method by which it will assure itself that the production organisation is working in accordance with the manual and the agreed inspection procedures during the validity period of the agreement. For a renewal of this validity period, the procedure as defined in point [21.B.140](#_DxCrossRefBm1649097579) should be used. (d)     Any conditions under which the agreement will expire (such as the termination date and/or number of units to produce) should be clearly stated in the letter of agreement. ##### AMC1 21.B.120(d) Initial certification procedure *ED Decision 2023/014/R* **ISSUE OF THE LETTER OF AGREEMENT** (a) Unless otherwise agreed by the competent authority, no production before the issue of the letter of agreement may be accepted under Part 21 Section A, Subpart F. (b) The agreement should include or reference a predefined plan of inspection points established as part of the production inspection system and agreed with the competent authority to be used as a basis for the inspections described in points [21.A.129](#_DxCrossRefBm485230605) and [21.B.120](#_DxCrossRefBm485231027)(a) and their associated AMC and GM. The plan should clearly identify the inspection points, places, inspection subjects (materials, processes, tooling documentation, human resources, etc.), as well as the focal points and the method of communication between the production organisation and the competent authority. (c) The competent authority should detail the method by which it will assure itself that the production organisation is working in accordance with the manual and the agreed inspection procedures during the validity period of the agreement. For a renewal of this validity period, the procedure as defined in point [21.B.140](#_DxCrossRefBm485231074) should be used. (d) Any conditions under which the agreement will expire (such as the termination date and/or number of units to produce) should be clearly stated in the letter of agreement.