Skip to content

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

2. Aircraft type training levels

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

IRImplementing rule

2. Aircraft type training levels

The three levels listed below define the objectives, the depth of training and the level of knowledge that the training is intended to achieve. Level 1: A brief overview of the airframe, systems and powerplant as outlined in the Systems Description Section of the Aircraft Maintenance Manual/Instructions for Continued Airworthiness. Course objectives: Upon completion of Level 1 training, the student will be able to:

(a)provide a simple description of the whole subject, using common words and examples, using typical terms and identify safety precautions related to the airframe, its systems and powerplant;

(b)identify aircraft manuals, maintenance practices important to the airframe, its systems and powerplant;

(c)define the general layout of the aircraft's major systems;

(d)define the general layout and characteristics of the powerplant;

(e)identify special tooling and test equipment used with the aircraft. Level 2: Basic system overview of controls, indicators, principal components, including their location and purpose, servicing and minor troubleshooting. General knowledge of the theoretical and practical aspects of the subject. Course objectives: In addition to the information contained in the Level 1 training, at the completion of Level 2 training, the student will be able to:

(a)understand the theoretical fundamentals; apply knowledge in a practical manner using detailed procedures;

(b)recall the safety precautions to be observed when working on or near the aircraft, powerplant and systems;

(c)describe systems and aircraft handling particularly access, power availability and sources;

(d)identify the locations of the principal components;

(e)explain the normal functioning of each major system, including terminology and nomenclature;

(f)perform the procedures for servicing associated with the aircraft for the following systems: Fuel, Power Plants, Hydraulics, Landing Gear, Water/Waste, and Oxygen;

(g)demonstrate proficiency in use of crew reports and on-board reporting systems (minor troubleshooting) and determine aircraft airworthiness per the MEL/CDL;

(h)demonstrate the use, interpretation and application of appropriate documentation including instructions for continued airworthiness, maintenance manual, illustrated parts catalogue, etc. Level 3: Detailed description, operation, component location, removal/installation and bite and troubleshooting procedures to maintenance manual level. Course objectives: In addition to the information contained in Level 1 and Level 2 training, at the completion of Level 3 training, the student will be able to:

(a)demonstrate a theoretical knowledge of aircraft systems and structures and interrelationships with other systems, provide a detailed description of the subject using theoretical fundamentals and specific examples and to interpret results from various sources and measurements and apply corrective action where appropriate;

(b)perform system, powerplant, component and functional checks as specified in the aircraft maintenance manual;

(c)demonstrate the use, interpret and apply appropriate documentation including structural repair manual, troubleshooting manual, etc.;

(d)correlate information for the purpose of making decisions in respect of fault diagnosis and rectification to maintenance manual level;

(e)describe procedures for replacement of components unique to aircraft type.

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

All rules in APPENDICES TO ANNEX III (Part-66)

Consolidated from the EASA Easy Access Rules (revision 2 Sep 2025, 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 2. Aircraft type training levels →

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