ML.A.502 Component maintenance
SI No. 588/2023
(a) Components accepted by the owner in accordance with point 21.A.307(b)(2) of Annex I (Part-21) to Regulation (EU) No 748/2012 shall be maintained by any person or organisation, subject to reacceptance by the owner under the conditions of point 21.A.307(b)(2) of that Annex. This maintenance is not eligible for the issuance of a CAA Form 1, as set out in Appendix II of Annex I (Part-M), and shall be subject to the aircraft release requirements.
(b) Components shall be released in accordance with the following table:
| Released using a CAA Form 1 (as set out in Appendix II of Annex I (Part-M)) | Released at aircraft level per point ML.A.801 (not possible to issue a CAA Form 1 ) | |
| Components maintained in accordance with component maintenance data (data issued by the component manufacturer) | ||
| Maintenance other than overhaul | Engine-rated (for engine) or component-rated (for other components) maintenance organisations | (i) Aircraft-rated maintenance organisations; and/or (ii) independent certifying staff |
| Overhaul of components other than engines and propellers | Component-rated maintenance organisations | Not possible |
| Overhaul of engines and propellers for CS-VLA, CS-22 and LSA aircraft | Engine-rated (for engine) or component-rated (for propeller) maintenance organisations | (iii) Aircraft-rated maintenance organisations; and/or (iv) independent certifying staff |
| Overhaul of engines and propellers for other than CS-VLA, CS-22 and LSA aircraft | Engine-rated (for engine) or component-rated (for propeller) maintenance organisations | Not possible |
| Components maintained in accordance with aircraft maintenance data (data issued by the aircraft manufacturer) | ||
| All components and all types of maintenance | Engine-rated (for engine) or component-rated (for other components) maintenance organisations | — Aircraft-rated maintenance organisations; and/or — independent certifying staff |
(c) Components which are referred to in points (b)(3) to (6) of point 21.A.307 of Annex I (Part-21) to Regulation (EU) No 748/2012 may be maintained by any person or organisation. In such case, by way of derogation from point (b), the maintenance of those components must be released with a “declaration of maintenance accomplished” issued by the person or organisation that performed the maintenance. The “declaration of maintenance accomplished” must contain at least basic details of the maintenance carried out, the date on which the maintenance was completed, and the identification of the organisation that issues it. It is to be considered a maintenance record and equivalent to a CAA Form 1 in respect of the maintained component.