IRImplementing rule
21.A.129Obligations of the production organisation
Each manufacturer of a product, part, appliance, CMU or CMU component manufactured under this Subpart shall:
(a)make each product, part, appliance, CMU or CMU component available for inspection by the competent authority;
(b)maintain at the place of manufacture the technical data and drawings necessary to determine whether the product, part, appliance, CMU or CMU component conforms to the applicable design data;
(c)maintain the production inspection system which ensures that each product, part, appliance, CMU or CMU component conforms to the applicable design data and is in a condition for safe operation;
(d)provide assistance to the holder of the type-certificate, restricted type-certificate or design approval in dealing with any continuing airworthiness actions that are related to the products, parts, appliances, CMUs or CMU components that have been produced;
(e)comply with Subpart A of this Section.
IR · 21.A.129 — Regulation (EU) No 748/2012 · Regulation (EU) 2024/1108 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025