What Is EASA Part-66? Complete Guide to Aircraft Maintenance Licensing

If you are planning a career in aircraft maintenance engineering, understanding EASA Part-66 is essential. Under the easa regulatory framework, Part-66 defines the licensing requirements for aircraft maintenance engineers across Europe and in many countries worldwide that recognize easa standards.

In this comprehensive guide, you will learn:

• What EASA Part-66 is

• Why easa licensing is important

• License categories (A, B1, B2, B3)

• Modules de la PART 66

• Part – 66 Basic Examination structure

• How EASA Part-147 training supports Part-66

• EASA Part 66 Training Morocco opportunities

• Career benefits of a Part 66 License

What Is EASA?

The European Union Aviation Safety Agency (easa) is responsible for aviation safety regulation within the European Union. It sets rules for:

• Aircraft certification

• Maintenance standards

• Continuing airworthiness

• Training and licensing of aircraft maintenance engineers

EASA ensures that aircraft operating within its jurisdiction meet strict safety requirements.

What Is EASA Part-66?

EASA Part-66 is the regulation that defines the requirements for issuing aircraft maintenance licenses. It specifies:

• Theoretical knowledge standards

• Required maintenance experience

• Examination requirements

• License privileges and limitations

A Part-66 license allows an engineer to certify that aircraft maintenance has been performed correctly and that the aircraft is safe for release to service.

In simple terms:

EASA Part-66 = Aircraft Maintenance Engineer License Regulation

Why Is EASA Part-66 Important?

EASA Part-66 ensures:

• Standardized qualification across Europe

• High safety standards in aircraft maintenance

• International recognition of maintenance engineers

• Consistency in technical competence

Many countries outside Europe also recognize easa licenses due to their strict safety standards.

EASA Part-66 License Categories

The easa Part-66 license includes different categories depending on specialization.

Category A

• Minor maintenance tasks

• Limited certification privileges

Category B1 (Mechanical)

• Aircraft structures

• Engines

• Mechanical systems

• Hydraulics

• Fuel systems

Category B2 (Avionics)

• Electrical systems

• Navigation systems

• Communication systems

• Instrument systems

Category B3

• Light piston-engine aircraft

Each category requires completion of specific modules and practical experience.

Modules de la PART 66

The knowledge requirement under easa is divided into structured modules.

Core modules include:

• M1 – Mathematics

• M2 – Physics

• M3 – Electrical Fundamentals

• M4 – Electronic Fundamentals

• M5 – Digital Techniques / Electronic Instrument Systems

• M6 – Materials and Hardware

• M7 – Maintenance Practices

• M8 – Basic Aerodynamics

• M9 – Human Factors

• M10 – Aviation Legislation

• M11 – Turbine Aeroplane Aerodynamics, Structures and Systems

• M13 – Aircraft Aerodynamics, Structures and Systems

• M14 – Propulsion

• M15 – Gas Turbine Engine

• M17 – Propeller

Each module must be passed in the Part – 66 Basic Examination.

Part – 66 Basic Examination

The Part-66 Basic Examination is mandatory to obtain the license.

It includes:

• Multiple Choice Questions (MCQs)

• Essay questions (for certain modules like M7)

• Minimum passing score (typically 75%)

• Separate exams for each module

Candidates must pass all required modules for their chosen license category.

Experience Requirements Under EASA Part-66

In addition to examinations, easa requires:

• Documented maintenance experience

• Practical training

• Logbook verification

• Experience duration depending on educational background

Without practical experience, a license cannot be issued.

What Is EASA Part-147 and How Does It Relate to Part-66?

While Part-66 regulates licensing, EASA Part-147 regulates training organizations.

An EASA Part-147 Approved school provides:

• Part 66 BASIC Course

• Module training

• Exam preparation

• Type training

• Certificate of Recognition

In short:

• Part-147 prepares you

• Part-66 licenses you

Together, they form the complete easa training pathway.

How to Get a Part 66 License – EASA Part 66 / 147 Training & Exams

Here is the step-by-step process:

1. Enroll in an EASA Part-147 Approved training center

2. Complete the Part 66 BASIC Course

3. Study required Modules de la PART 66

4. Pass all Part – 66 Basic Examinations

5. Gain required practical experience

6. Apply to aviation authority for your Part 66 License

EASA Part 66 Training Morocco

Morocco is emerging as a recognized destination for EASA Part 66 Training Morocco.

Benefits include:

• Part-147 Approved organizations

• International instructor expertise

• Modern facilities

• Competitive training costs

• Access to Airbus and Boeing fleets

Training under easa standards in Morocco provides international career opportunities.

Career Opportunities After EASA Part-66

Holding a Part-66 license allows you to work as:

• Aircraft Maintenance Engineer

• Line Maintenance Technician

• Base Maintenance Engineer

• Avionics Specialist

• MRO Technician

The license is recognized across Europe and widely accepted internationally.

Frequently Asked Questions 

What is EASA Part-66?

EASA Part-66 is the regulation that defines the requirements for aircraft maintenance engineer licensing under easa standards.

Is EASA Part-66 recognized worldwide?

Yes. Many countries recognize easa licenses due to strict safety standards.

How many modules are required for Part-66?

There are multiple modules depending on your category, including mathematics, physics, maintenance practices, legislation, engines, and avionics systems.

What is the difference between Part-66 and Part-147?

Part-66 regulates licensing, while Part-147 regulates approved training organizations.

Conclusion

EASA Part-66 is the foundation of aircraft maintenance licensing in Europe. It ensures that engineers meet strict knowledge and experience requirements before being authorized to certify aircraft maintenance.

Combined with EASA Part-147 training, it creates a structured and internationally respected pathway for aircraft maintenance professionals.

If you are serious about building a global aviation career, following the easa Part-66 licensing pathway is the first and most important step.