Skip to content

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

26.333 Damage tolerance data for STCs and repairs affecting those STCs approved on or after 1 September 2003

ADDITIONAL AIRWORTHINESS SPECIFICATIONS FOR OPERATIONS · Regulation (EU) 2015/640 · EAR revision 20 Mar 2026

IRImplementing rule

26.333Damage tolerance data for STCs and repairs affecting those STCs approved on or after 1 September 2003

(a)For a change approval that was issued on or after 1 September 2003, the approval holder referred to in point 26.330(a) shall:

(i)for changes and published repairs identified in accordance with points (a)(i) and (a)(iii) of point 26.332, respectively, perform a damage tolerance evaluation;

(ii)establish and document the associated DTI, unless this has already been done.

(b)The approval holder referred to in point (a) shall submit the damage tolerance data resulting from the damage tolerance evaluation performed in accordance with point (a)(i) to the Agency before 26 February 2023, for approval, unless it is already approved in accordance with point 21.B.111 of Annex I (Part 21) to Regulation (EU) No 748/2012.

(c)By way of derogation from point (b), for changes that did not have a damage tolerance evaluation requirement in the certification basis, the approval holder referred to in point (a) shall submit the damage tolerance data resulting from the damage tolerance evaluation performed in accordance with point (a) to the Agency, within the following deadlines, whichever occurs later, for approval:

(i)prior to an aeroplane with that change incorporated being operated in accordance with Annex IV (Part- CAT) to Regulation (EU) No 965/2012; or

(ii)before 26 February 2023.

IR · 26.333 — Regulation (EU) 2015/640 · Regulation (EU) 2024/2954 · Part-26 Easy Access Rules · EAR revision 20 Mar 2026

All rules in SUBPART B — AEROPLANES

Consolidated from the EASA Easy Access Rules (revision 20 Mar 2026, 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 26.333 →

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