IRImplementing rule
21.A.158Findings and observations
(a)After receipt of the notification of findings in accordance with point 21.B.225, the holder of the production organisation approval certificate shall:
1.identify the root cause(s) of, and contributing factor(s) to, the non-compliance;
2.define a corrective action plan;
3.demonstrate the implementation of the corrective action to the satisfaction of the competent authority.
(b)The actions referred to in point (a) shall be performed within the period agreed with that competent authority in accordance with point 21.B.225.
(c)The observations received in accordance with 21.B.225(e) shall be given due consideration by the holder of the production organisation approval certificate. The organisation shall record the decisions taken in respect of those observations.
IR · 21.A.158 — Regulation (EU) No 748/2012 · Regulation (EU) 2022/201 · Initial Airworthiness Easy Access Rules · EAR revision 27 Nov 2025