Skip to content

A gradual release of Avioverse begins in October 2026. Request early access →

21.A.602B Demonstration of capability

Annex I · Regulation (EU) No 748/2012 · EAR revision 27 Nov 2025

IRImplementing rule

21.A.602BDemonstration of capability

Any applicant for an ETSO authorisation shall demonstrate its capability as follows:

(a)for production, by holding a production organisation approval, issued in accordance with Subpart G, or through compliance with Subpart F procedures; and

(b)for design:

1.for an Auxiliary Power Unit, by holding a design organisation approval, issued by the Agency in accordance with Subpart J;

2.for all other articles, by using procedures setting out the specific design practices, resources and sequence of activities necessary to comply with this Annex I (Part 21).

IR · 21.A.602B — Regulation (EU) No 748/2012 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

AMCAcceptable means of compliance

AMC 21.A.602B(b)(2)Procedures for ETSO authorisations

Show the text

1.Scope

1.1 A manual of procedures must set out specific design practices, resources and sequence of activities relevant for the specific projects, taking account of Part 21 requirements.

1.2 These procedures must be concise and limited to the information needed for quality and proper control of activities by the applicant/holder, and by the Agency.

2.Management of the ETSO authorisation process A procedure explaining how the application to the Agency and certification process to obtain an ETSOA will be made, must be established.

3.Management of design changes

3.1 A procedure taking into account 21.A.611, must be established for the classification and approval of design changes on articles under ETSO authorisation

3.2 Procedure for the classification and approval of repairs and unintentional deviations from the approved design data occurring in production (concessions or non-conformance's) must be established.

4.Obligations addressed in 21.A.609 The applicant should establish the necessary procedures to show to the Agency how it will fulfil the obligations under 21.A.609. For issue of information and instructions, a procedure following the principles of AMC 21.A.14(b), paragraph 4 must be established.

5.Control of design sub-contractors The applicant must establish the necessary procedures to show to the Agency how it will control design sub-contractors.

AMC · AMC 21.A.602B(b)(2) — Regulation (EU) No 748/2012 · ED Decision 2012/020/R · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025

All rules in SECTION A — TECHNICAL REQUIREMENTS

Consolidated from the EASA Easy Access Rules (revision 27 Nov 2025, extracted 17 Aug 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.

Ask Metis about 21.A.602B →

Metis opens with Avioverse in October 2026 · request early access.