21L.A.225 Declaration of design compliance for minor repair designs

REQUIREMENTS FOR THE DECLARATION OF A MINOR REPAIR

(a)Applicability of point 21L.A.225 Point 21L.A.225 should be complied with by declarants for the declaration of compliance of a minor repair, including design organisation approval (DOA) holders that declare compliance of minor changes under their privileges as per point (c)(3) of point 21.A.263 of Annex I (Part 21). In accordance with point 21L.A.225(c) for declarations of compliance for minor repairs, the substantiating data and the declaration of compliance required by point 21L.A.225(a) should be produced but do not need to be submitted to EASA. They should be, however, kept on record and made available to EASA upon request during any oversight visit.

(b)The declaration process The declaration process comprises the following steps:

(1)classification of the repair;

(2)applicable detailed technical specifications;

(3)determination of compliance;

(4)declaration of design compliance.

(c)Detailed technical specifications The detailed technical specifications for a minor repair consist of the detailed technical specifications that were incorporated by reference in the declaration of design compliance that was submitted for the particular aircraft under Subpart C unless EASA has determined that these are no longer appropriate and the latest detailed technical specifications should be complied with or the declarant elects to comply with these detailed technical specifications.

(d)Determination of compliance required by point 21L.A.103(a) The declarant should determine compliance with the applicable detailed technical specifications established for the minor change for all areas that are either physically changed or functionally affected by the minor change.

(1)Means of compliance: the declarant should define and record the means (calculation, test or analysis, etc.) by which compliance is determined. Appendix A to AMC1 21L.A.44(a) may be used for this purpose.

(2)Compliance documents: the compliance determination should be recorded in compliance documents. For minor changes, one comprehensive compliance document may be sufficient, provided that it contains evidence of all aspects for compliance. AMC1 21L.A.227(b) may also be used, where applicable.

(3)Aircraft manuals: where applicable, supplements to manuals (e.g. aircraft flight manual (AFM), aircraft maintenance manual (AMM), etc.) may be issued. See also additional guidance below in point (e) on embodiment/installation instructions.

(e)Embodiment/installation instructions The instructions for the embodiment/installation of the repair (e.g. service bulletin, modification bulletin, production work order, etc.) should be defined. This may include the installation procedure, the required materials, etc.

FORM AND MANNER The declarant should complete and file a declaration of compliance for the minor repair using the applicable form below (which can also be downloaded from the EASA website) for the declaration of minor changes/minor repair designs. If there are any changes to the data (e.g. propeller or engine designation) that was provided in the EASA Part 21 Light database of declared noise levels as a result of the minor repair design, then this data should be added by the declarant. The justification of the classification of the change should also be recorded. EASA Form 201 Declaration of design compliance for a Minor Change / Minor Repair Design

REGISTER OF DECLARATIONS FOR MINOR REPAIRS The register that is used by the declarant to record the declarations of design compliance for minor repairs should also comply with point 21L.A.7 and be easily accessible in case EASA requests the details of a specific minor change during oversight.