---
title: "MODULE 9. HUMAN FACTORS — Part-66 · Avioverse"
description: "MODULE 9. HUMAN FACTORS LEVEL ALL 9.1 General 2 9.2 Human performance and limitations 2 9.3 Social psychology 1 9.4 Factors that affect performance 2 9.5…"
url: "https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/appendices-to-annex-iii-part-66/module-9-human-factors"
---

# MODULE 9. HUMAN FACTORS

Annex III (Part-66) · Regulation (EU) No 1321/2014 · EAR revision 2 Sep 2025

IR Implementing rule

## MODULE 9. HUMAN FACTORS

| MODULE 9. HUMAN FACTORS                    | LEVEL |
| ------------------------------------------ | ----- |
|                                            | ALL   |
| 9.1 General                                | 2     |
| 9.2 Human performance and limitations      | 2     |
| 9.3 Social psychology                      | 1     |
| 9.4 Factors that affect performance        | 2     |
| 9.5 Physical Environment                   | 1     |
| 9.6 Tasks                                  | 1     |
| 9.7 Communication                          | 2     |
| 9.8 Human error                            | 2     |
| 9.9 Safety management                      | 2     |
| 9.10 The ‘Dirty Dozen’ and risk mitigation | 2     |

IR — Regulation (EU) No 1321/2014 · Regulation (EU) 2023/989 · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025

[All rules in APPENDICES TO ANNEX III (Part-66)](https://avioverse.aero/regulations/easa/continuing-airworthiness/part-66/appendices-to-annex-iii-part-66)

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.