Module Syllabus
EASA Part-66 training syllabus as per Regulations (EU) 2023/989 and 2025/111
Not sure where to begin? See EASA Part-66 explained — categories, exams and experience.
Syllabus content is based on Commission Implementing Regulation (EU) 2023/989, Appendix I (Basic Knowledge Requirements). View full regulation. Module 18 (Electric Power Plant) for the new B1.E subcategory was added by Regulation (EU) 2025/111, applicable from 13 February 2026. View regulation.
Licence Categories (66.A.3)
Module 1
Mathematics
Module 2
Physics
Module 3
Electrical Fundamentals
Module 4
Electronic Fundamentals
Module 5
Digital Techniques / Electronic Instrument Systems
Module 6
Materials and Hardware
Module 7
Maintenance Practices
Module 8
Basic Aerodynamics
Module 9
Human Factors
Module 10
Aviation Legislation
Module 10 — UK CAA
Aviation Legislation (UK CAA Part-66)
Module 11
Aeroplane Aerodynamics, Structures and Systems
Module 12
Helicopter Aerodynamics, Structures and Systems
Module 13
Aircraft Aerodynamics, Structures and Systems
Module 14
Propulsion
Module 15
Gas Turbine Engine
Module 16
Piston Engine
Module 17
Propeller
Module 18
Electric Power Plant
Free download
How to Become a Licensed Aircraft Engineer
The complete EASA Part-66 handbook — licence categories, all 17 modules, exam format and pass marks, experience and OJT, the rules in 11 countries, type ratings and continuation training. Includes 255 practice questions with explanations. 2026 Edition, PDF.
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