28/09/2026 - 27/06/2027
Aircraft technicians
Europe
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Specialise in Aircraft Avionics & Electrical Systems
The EASA Part-66 Category B2 programme is designed for students who want to specialise in aircraft avionics and electrical systems and build a professional career in aircraft maintenance.
B2 focuses primarily on avionics and electrical maintenance, including specified electrical and avionics tasks within powerplant and mechanical systems.
EASA Part-66 Category B2
Applicable aircraft within B2 scope
Part-66 Theory + Practical Training
2,400 hours*
Approximately 1,200–1,440 hours*
Approximately 960–1,200 hours*
Depends on training schedule
Avionics & Electrical Systems
Line & Base Maintenance
Selected training locations
EASA Part-147 minimum course duration for a complete B2 basic training course is 2,400 hours, with 50–60% theoretical training.
The programme covers the applicable Part-66 knowledge areas, including:
Students develop practical skills in areas such as:
A B2 licence focuses on avionics and electrical maintenance, including specified electrical and avionics tasks within powerplant and mechanical systems.
B2 aircraft maintenance professionals can build careers with:
Further training and experience can support progression into aircraft type ratings and specialised avionics roles.
Typical requirements may include:
Specific requirements depend on the selected training programme.
After completing the required knowledge and experience requirements, candidates can apply for the applicable EASA Part-66 Aircraft Maintenance Licence. Aircraft type training and, where required, OJT can then be completed for aircraft type ratings.
B2 is the Part-66 licence category focused primarily on aircraft avionics and electrical systems.
The required theoretical training ratio is 50–60%, equivalent to approximately 1,200–1,440 hours of the 2,400-hour course.
The remaining training element is approximately 960–1,200 hours, depending on the approved course structure.
B1.1 focuses primarily on aircraft structures, powerplants, mechanical and electrical systems on turbine aeroplanes, while B2 focuses primarily on avionics and electrical systems.
Yes, subject to the applicable licence, aircraft type rating and organisation authorisation requirements.
Yes. Applicable type training and practical/OJT requirements must be completed for aircraft type endorsement.
Build your professional foundation with an EASA Part-66 Category B2 training pathway.
