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ML.A.904 Airworthiness review staff

Annex Vb (Part-ML) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IRImplementing rule

ML.A.904Airworthiness review staff

(a)Airworthiness review staff acting on behalf of the competent authority shall be qualified in accordance with point ML.B.901(c).

(b)Airworthiness review staff acting on behalf of an organisation referred to in Annex II (Part-145), Annex Vc (Part-CAMO) or Annex Vd (Part CAO) shall be qualified in accordance with Annex II (Part-145), Annex Vc (Part-CAMO) or Annex Vd (Part-CAO) respectively.

(c)Airworthiness review staff acting on their own behalf, as permitted pursuant to point ML.A.901(c)(4), shall: (1) hold a licence issued in accordance with Annex III (Part-66) rated for the corresponding aircraft; and (2) hold an authorisation issued by the competent authority that issued the licence in accordance with Annex III (Part-66).

(d)The authorisation required under point (c)(2) shall be issued by the competent authority when: (1) the competent authority has assessed that the person has the knowledge of the parts of this Annex relevant to continuing-airworthiness management, performance of airworthiness reviews and issuance of ARCs; (2) the person has satisfactorily performed an airworthiness review under the supervision of the competent authority. This authorisation shall remain valid for a duration of 5 years as long as the holder has performed at least 1 airworthiness review every 12-months. If this is not the case, a new airworthiness review shall be satisfactorily performed under the supervision of the competent authority. Upon expiration of its validity, the authorisation shall be renewed for another 5 years subject to a new compliance with points (d)(1) and (d)(2). There is no limit to the number of renewals. The holder of the authorisation shall keep records of all the airworthiness reviews performed and shall make them available, upon request, to any competent authority and to any aircraft owner for whom they are performing an airworthiness review. This authorisation may be revoked by the competent authority at any time if it is not satisfied with the competence of the holder or with the use of such an authorisation.

IR · ML.A.904 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

GMGuidance material

GM1 ML.A.904(c);(d) Qualification of airworthiness review staff

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GM1 ML.A.904(c);(d) Qualification of airworthiness review staff

AR BY INDEPENDENT CERTIFYING STAFF

(a)ML.A.904(c) and (d) refer to the independent certifying staff. The terms ‘corresponding aircraft’ or ‘particular aircraft’ mean that the person meets at the time of the AR the certifying staff requirements for the aircraft subject to the AR.

(b)The authorisation issued to the certifying staff by the competent authority is only granted after assessment of the knowledge required in point (d)(1) and after the satisfactory performance of an AR under supervision of the competent authority (point (d)(2)).

GM · GM1 ML.A.904(c) — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

All rules in SECTION A — TECHNICAL REQUIREMENTS

Consolidated from the EASA Easy Access Rules (revision 2 Sep 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.

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