---
title: "147.B.20 Record-keeping — Part-147 · Avioverse"
description: "The competent authority shall establish a system of record-keeping that allows adequate traceability of the process to issue, renew, continue, vary…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-147/section-b-procedures-for-competent-authorities/147-b-20"
---

# 147.B.20 Record-keeping

Annex IV (Part-147) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IR Implementing rule

## 147.B.20 Record-keeping

(a) The competent authority shall establish a system of record-keeping that allows adequate traceability of the process to issue, renew, continue, vary, suspend or revoke each approval.

(b) The records for the oversight of [maintenance](https://avioverse.aero/glossary/easa/maintenance) training organisations shall include as a minimum:

1\. the application for an [organisation](https://avioverse.aero/glossary/easa/organisation) approval.

2\. the organisation approval certificate including any changes.

3\. a copy of the audit program listing the dates when audits are due and when audits were carried out.

4\. continued oversight records including all audit records.

5\. copies of all relevant correspondence.

6\. details of any exemption and enforcement actions.

7\. any report from other competent authorities relating to the oversight of the organisation.

8\. organisation exposition and amendments.

(c) The minimum retention period for the point (b) records shall be four years.

IR · 147.B.20 — Regulation (EU) No 1321/2014 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

AMC Acceptable means of compliance

## AMC 147.B.20 Record-keeping

1\. The record-keeping system should ensure that all records are accessible whenever needed within a reasonable time. These records should be organized in a consistent way throughout the competent authority (chronological, alphabetical order, etc.).

2\. All records containing sensitive data regarding applicants or organisations should be stored in a secure manner with controlled access to ensure confidentiality of this kind of data.

3\. All computer hardware used to ensure data backup should be stored in a different location from that containing the working data in an environment that ensures they remain in good condition. When hardware- or software-changes take place special care should be taken that all necessary data continues to be accessible at least through the full period specified in 147.B.20.

AMC · AMC 147.B.20 — Regulation (EU) No 1321/2014 · ED Decision 2015/029/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in SECTION B — PROCEDURES FOR COMPETENT AUTHORITIES](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-147/section-b-procedures-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.