21L.B.221 Initial oversight investigation of a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared

Regulation (EU) 2022/1358

(a) Upon receiving a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared, the Agency shall verify that that the repair design is within the scope of point 21L.A.221 and that the declaration contains all the information specified in point 21L.A.226. The Agency shall acknowledge the receipt of the declaration, including the assignment of an individual declaration of design compliance reference number to the declarant.

(b) The Agency shall assess, based upon the risk of a non-compliance leading to a design that is not capable of safe flight or being environmentally incompatible, whether a physical inspection and assessment of the aircraft with the major repair design is needed, and subsequently inform the declarant if that is the case. This assessment of the risk shall take into consideration:

1. the complexity of the major repair design and the overall effect on the aircraft structures, flight characteristics and systems;

2. previous experience of physical inspections of aircraft and major repair designs and changes that have been designed by the declarant;

3. the response by the declarant to any previous findings that have been raised for non‑compliances of the specific aircraft or similar aircraft designed by the declarant that have also been subject to a declaration of design compliance.

(c) If the Agency finds evidence in the declaration, or through the physical inspection and assessment if carried out in accordance with point (b) of point 21L.B.221, indicating that the aircraft with the major repair design could be incapable of conducting a safe flight or could be environmentally incompatible during in‑service operations, the Agency shall raise a finding in accordance with point 21L.B.21.

AMC1 21L.B.221 Initial oversight investigation of a declaration of design compliance of a major repair design to an aircraft for which design compliance has been declared

ED Decision 2023/013/R

PHYSICAL INSPECTION AND ASSESSMENT OF THE FIRST ARTICLE OF THE REPAIRED PRODUCT (FIRST-ARTICLE INSPECTION)

If EASA determines that there is a need to conduct a first-article inspection of the repaired product under point 21L.B.221(b), then AMC 21L.B.62(b) provides the description of this activity for EASA.

21L.B.222 Registration of a declaration of a major repair design to an aircraft for which design compliance has been declared

Regulation (EU) 2022/1358

(a) The Agency shall register a declaration of a major repair design to an aircraft for which design compliance has been declared provided that:

1. the declarant has declared compliance in accordance with point (a)of point 21L.A.226;

2. the declarant has provided to the Agency the documents required in accordance with point (d) of point 21L.A.226;

3. the declarant has made a commitment that the obligations in accordance with point 21L.A.228 will be undertaken;

4. there are no unresolved issues from the physical inspection, if carried out in accordance with point (b) of point 21L.B.221.

(b) The Agency shall only register a declaration of a major repair design to an aircraft for which design compliance has been declared if it is limited to the specific configuration(s) in the registered declaration of design compliance to which the major repair design relates.

21L.B.223 Continuing airworthiness oversight of a repair design for which design compliance has been declared

Regulation (EU) 2022/1358

If the Agency, through its continuing airworthiness oversight, including through reports received in accordance with point 21L.A.3, or by any other means, detects a non-compliance of a repair design, for which design compliance has been declared, with the applicable detailed technical specifications or with the applicable environmental protection requirements, the Agency shall raise a finding in accordance with point 21L.B.21, or issue an airworthiness directive under the conditions of point 21L.B.23.