Where must a production organisation keep the technical data and drawings needed to confirm that a product conforms to the applicable design data?

At the place of manufacture (21.A.129(b)).

What assistance must a manufacturer provide to the holder of a type-certificate, restricted type-certificate, or design approval regarding continuing airworthiness?

The manufacturer must provide assistance in dealing with any continuing airworthiness actions related to the products, parts, appliances, CMUs, or CMU components that have been produced (21.A.129(d)).

Which subpart of Section 21.A must a production organisation comply with in addition to the obligations listed in 21.A.129?

Subpart A of Section 21.A (21.A.129(e)).

For which items does a manufacturer have to maintain technical data and drawings at the place of manufacture to determine conformity to the applicable design data?

For each product, part, appliance, CMU, or CMU component (21.A.129(b)).

Which regulation is the legal basis for the obligations of the production organisation as stated in 21.A.129?

Regulation (EU) 2024/1108 (21.A.129, introductory sentence).

Does 21.A.129 require a manufacturer to provide assistance to the type-certificate holder for continuing airworthiness actions related to products that are no longer in production?

The section states that assistance must be provided for continuing airworthiness actions related to the products, parts, appliances, CMUs, or CMU components that have been produced, without limiting to current production (21.A.129(d)).

21.A.129 Obligations of the production organisation

Q: What must a manufacturer do to allow the competent authority to verify that a product, part, appliance, CMU, or CMU component produced under Subpart A of Section 21.A is compliant?

The manufacturer must make each product, part, appliance, CMU or CMU component available for inspection by the competent authority (21.A.129(a)).

Q: What system must a production organisation maintain to ensure that each product, part, appliance, CMU, or CMU component conforms to the applicable design data and is safe to operate?

The production inspection system (21.A.129(c)).

Q: What is the purpose of the production inspection system that a manufacturer must maintain under 21.A.129(c)?

To ensure that each product, part, appliance, CMU, or CMU component conforms to the applicable design data and is in a condition for safe operation (21.A.129(c)).

Q: What is the scope of items that must be made available for inspection by the competent authority under 21.A.129(a)?

Each product, part, appliance, CMU, or CMU component manufactured under this Subpart (21.A.129(a)).

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21.A.129 Obligations of the production organisation

Regulation (EU) 2024/1108

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.

Details

Source-Title: 21.A.129 Obligations of the production organisation View latest amendments

Erulesid: ERULES-1963177438-3777 Compare versions

Domain: Initial airworthiness

Applicabilitydate: 1 May, 2025

Entryintoforcedate: 12 June, 2024

Regulatorysource: Regulation (EU) 2024/1108 Navigate

Regulatorysubject: Part-21

Typeofcontent: DR (Delegated rule)

Origin: EASA

Category: EAR

21.A.129 Obligations of the production organisation

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