IRImplementing rule
ML.A.304Data for modifications and repairs
A person or organisation repairing an aircraft or a component shall assess any damage. Modifications and repairs shall be carried out using the applicable data, that is, as appropriate:
(a)approved by the Agency;
(b)approved by a design organisation complying with Annex I (Part 21) to Regulation (EU) No 748/2012;
(c)contained in the requirements referred to in point 21.A.90B or point 21.A.431B of Annex I (Part 21) to Regulation (EU) No 748/2012;
(d)contained in the requirements referred to in point 21L.A.62, 21L.A.102, 21L.A.202 or 21L.A.222 of Annex Ib (Part 21 Light) to Regulation (EU) No 748/2012;
(e)declared by a declarant complying with Annex Ib (Part 21 Light) to Regulation (EU) No 748/2012.
IR · ML.A.304 — Regulation (EU) No 1321/2014 · Regulation (EU) 2022/1360 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025