---
title: "ML.B.303 Aircraft continuing airworthiness monitoring — Part-ML · Avioverse"
description: "The competent authority shall develop a survey programme following a risk-based approach to monitor the airworthiness status of the fleet of aircraft on…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-b-procedure-for-competent-authorities/ml-b-303"
---

# ML.B.303 Aircraft continuing airworthiness monitoring

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

IR Implementing rule

## ML.B.303 Aircraft continuing airworthiness monitoring

(a) The competent authority shall develop a survey programme following a risk-based approach to monitor the airworthiness status of the fleet of [aircraft](https://avioverse.aero/glossary/easa/aircraft) on its register.

(b) A survey programme shall include sample product surveys of aircraft and shall cover all aspects of airworthiness key risk elements.

(c) A sample product survey shall sample the airworthiness standards achieved, on the basis of the applicable requirements, and identify any findings.

(d) Any findings identified shall be categorised in accordance with point ML.B.907 and confirmed in writing to the person or [organisation](https://avioverse.aero/glossary/easa/organisation) responsible pursuant to point ML.A.201. The competent authority shall have a procedure in place to analyse findings as for their safety significance.

(e) The competent authority shall record all findings and closure actions.

(f) If during aircraft monitoring, evidence is found showing non-compliance with this or other Annexes, the finding shall be dealt with as provided for by the relevant Annex.

(g) If so required to ensure appropriate enforcement action, the competent authority shall exchange information on non-compliances identified in accordance with point (f) with other competent authorities.

IR · ML.B.303 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC1 ML.B.303 Aircraft continuing airworthiness monitoring

The competent authority survey programme developed in accordance with Part-M (M.B.303) provides an acceptable basic structure for the survey programme required for Part-ML [aircraft](https://avioverse.aero/glossary/easa/aircraft).

AMC · AMC1 ML.B.303 — Regulation (EU) No 1321/2014 · ED Decision 2020/002/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — PROCEDURE FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-ml/section-b-procedure-for-competent-authorities)

Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.