Skip to content

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

21L.A.87 Approval of a supplemental type certificate under a privilege

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

IRImplementing rule

21L.A.87Approval of a supplemental type certificate under a privilege

(a)The approval of a supplemental type certificate for a major change it has designed may be issued by an approved design organisation without an application according to point 21L.A.84 in accordance with the scope of its privileges provided for in point (9) of point 21.A.263(c) of Annex I (Part 21) instead of the Agency, as recorded in the terms of approval.

(b)When issuing a supplemental type certificate in accordance with point (a), the design organisation shall:

1.ensure that all the substantiation data and justifications are available;

2.ensure that the compliance of the change with the type-certification basis and the applicable environmental protection requirements has been demonstrated and declared;

3.confirm that it has not found:

(i)any non-compliances with the type-certification basis or, where applicable, with the applicable environmental protection requirements, or with the certification specifications chosen;

(ii)any feature or characteristic of the change that may make the changed product unsafe or environmentally incompatible for the uses for which certification is requested;

4.limit the approval of the supplemental type certificate to the specific configuration(s) in the type certificate to which the change relates.

IR · 21L.A.87 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/1358 · 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 21L.A.87 →

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