EASA Part-66 vs Part-147: What’s the Difference?

The aviation industry operates under strict regulatory standards to ensure aircraft safety and maintenance excellence. Within the European aviation system, the two most important frameworks governing aircraft maintenance engineers are EASA Part-66 and EASA Part-147.

Understanding the difference between these two easa regulations is essential if you plan to obtain a Part 66 License – EASA Part 66 / 147 Training & Exams or enroll in an EASA Part-147 Approved Type Course.

This guide explains everything in detail.

What Is EASA?

The European Union Aviation Safety Agency (easa) is the authority responsible for civil aviation safety across Europe. EASA sets the rules for:

• Aircraft certification

• Maintenance standards

• Continuing airworthiness

• Training and licensing of maintenance personnel

Two of its most important regulations are:

• EASA Part-66 (Licensing of Aircraft Maintenance Engineers)

• EASA Part-147 (Approval of Maintenance Training Organizations)

What Is EASA Part-66?

EASA Part-66 defines the requirements to obtain an aircraft maintenance license.

It ensures that engineers have:

• Theoretical knowledge

• Practical skills

• Documented maintenance experience

• Regulatory understanding

To obtain the license, candidates must complete:

• Required Modules de la PART 66

• Pass thePart – 66 Basic Examination

• Gain approved maintenance experience

The Part-66 license categories include:

• Category A

• Category B1 (Mechanical)

• Category B2 (Avionics)

• Category B3 (Light Aircraft)

Correct Modules de la PART 66 (Aligned With Your System)

Below are the core easa Part-66 modules visible in your platform:

M1 – Mathematics (B1/B2)

Engineering mathematics used in aircraft calculations.

M2 – Physics (B1/B2)

Fundamental aviation physics principles.

M3 – Electrical Fundamentals (B1/B2)

Electrical circuits and theory.

M4 – Electronic Fundamentals

• M4.1 (B1)

• M4 (B2)

M5 – Digital Techniques / Electronic Instrument Systems

• M5.B1

• M5 (B2)

M6 – Materials and Hardware

• M6 (B1)

• M6.B2 (B2)

M7 – Maintenance Practices

• M7 (B1)

• M7.B2

• M7 (ESSAYS)

M8 – Basic Aerodynamics (B1/B2)
M9 – Human Factors (B1/B2)
M10 – Aviation Legislation (B1/B2)
M11 – Turbine Aeroplane Aerodynamics, Structures and Systems (B1)
M13 – Aircraft Aerodynamics, Structures and Systems (B2)
M14 – Propulsion (B2)
M15 – Gas Turbine Engine (B1)
M17 – Propeller (B1)

These modules form the knowledge foundation required under easa regulation.

What Is EASA Part-147?

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

An EASA Part-147 Approved organization is authorized to deliver:

• Part 66 BASIC Course

• Aircraft Type Training

• B1/B2 Theoretical and Practical Training

• Differences Training

• Certificate of Recognition

• Part-66 Examination (when approved)

EASA Part-147 Approved Type Courses

Your website clearly shows multiple EASA Part-147 Approved Type Courses, including:

Airbus Type Courses

• Airbus A318 / A319 / A320 / A321 (CFM56)

• Airbus A319 / A320 / A321 (CFM LEAP-1A)

• Airbus A350 (Trent XWB)

Boeing Type Courses

• Boeing 737-600/700/800/900

• Boeing 737 MAX

• Boeing 777-200/300

• Boeing 787-8/9/10

• Boeing 767

• Boeing 757

ATR Type Courses

• ATR 42-400 / 500 / 72-212A

Embraer Type Courses

• Embraer ERJ-190 Series

These courses are typically:

• B1/B2 Theoretical & Practical

• Delivered under easa Part-147 approval

• Concluding with a Certificate of Recognition

This certificate is required to add a type rating to your Part 66 License.

Difference Between EASA Part-66 and Part-147

In simple terms:

• Part-147 trains you.

• Part-66 licenses you.

EASA Part-147 & Part-66 Maintenance Training Pathway

Here is the complete pathway:

1. Enroll in an EASA Part-147 Approved school

2. Complete the Part 66 BASIC Course

3. Study and pass all required Modules de la PART 66

4. Pass the Part – 66 Basic Examination

5. Gain required practical maintenance experience

6. Apply for your Part 66 License

7. Complete Aircraft Type Training (Part-147)

8. Add Type Rating to your license

This structured process ensures compliance with easa safety standards.

EASA Part 66 Training Morocco

Morocco is becoming a recognized hub for EASA Part 66 Training Morocco, offering:

• Part-147 Approved programs

• Modern training facilities

• Type training on Airbus, Boeing, ATR, Embraer

• Competitive pricing

• International certification recognition

This makes Morocco an attractive option for engineers seeking easa-compliant training.

Why EASA Certification Matters

Holding an easa license provides:

Global Recognition

Accepted across Europe and many international aviation markets.

Higher Salary Potential

Licensed B1/B2 engineers are in high demand.

International Mobility

Work in Europe, Middle East, Africa, and Asia.

Professional Authority

Sign off aircraft as airworthy.

FAQs:

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

EASA Part-66 regulates aircraft maintenance licensing, while Part-147 regulates approved training organizations delivering maintenance courses.

What is an EASA Part-147 Approved Type Course?

It is aircraft-specific training (Airbus, Boeing, ATR, etc.) delivered by an easa-approved organization, allowing engineers to add a type rating to their Part-66 license.

Is EASA Part 66 Training Morocco recognized internationally?

Yes. If delivered by an easa Part-147 approved organization, it is internationally recognized.

Do I need Part-147 training to get a Part-66 license?

Yes. Training through an approved Part-147 organization is required to complete your Part 66 BASIC Course and examinations.

Conclusion

Understanding the difference between EASA Part-66 and EASA Part-147 is critical for anyone entering the aircraft maintenance profession.

• Part-66 defines the licensing framework.

• Part-147 defines the approved training structure.

Together, they create a complete pathway for:

• Part 66 License – EASA Part 66 / 147 Training & Exams

• Aircraft Type Ratings

• Global aviation career opportunities

If you are planning your aviation career, choosing an EASA Part-147 Approved training organization is the first essential step toward earning your easa license and building a successful future in aircraft maintenance.