Part 66 modular aircraft engineer licence - career pathways

To get a CASA Part 66 'modular' aircraft engineer licence, or an extension of privileges on the modular licence, an applicant needs:

  1. basic knowledge – (ref: 66.A.25 and Appendix I of 66 MOS)
  2. basic experience – (ref: 66.A.30 of 66 MOS)

This results in a licence issued without any type ratings. You can learn more on our become a licensed aircraft engineer page.

Career pathway examples

The following are examples of typical career pathways to obtain a Part 66 aircraft engineer licence in Category B1 (mechanical) or Category B2 (avionics), using the flexibility of the 'modular' training pathway.

Please note, for the following pathways:

  • B1 pathway: there is no specific requirement for you to gain the airframe licence as the initial licence.
  • B2 pathway: there is no specific requirement for you to gain the electrical systems licence as the initial licence.

How to read the tables

The headings of each table map the modular training pathway, whereby you can expand upon the privileges of your 'initial issue' licence (1st column) to a full licence (4th column).

Further information

For further information on the modular licensing pathway, see the Part 66 MOS.

Modular licensing – Category B1 (aeroplanes)

There are 2 pathways under the Category B1 (aeroplanes):

  • B1.1 turbine aeroplanes
  • B1.2 piston aeroplanes.

Career pathway 1 – B1.1 turbine aeroplanes

Where and how you can gain your licence

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1.1 aeroplanes (airframe only)
  3. Submit application to us for initial issue of licence.

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1.1 aeroplanes (airframe only) and complete the relevant sections of the practical experience logbook.
  3. Submit with application to us for initial issue of licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to powerplant (turbine engines and propeller*).
  3. Submit application to us to add turbine engine scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can undertake further training through:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using text Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS) 
  2. Undertake the exams through our contracted exam provider, applicable to powerplant (turbine engines) 
  3. Complete the relevant sections of the practical experience logbook and submit with the application to us to add turbine engine scope to the licence.

Note: Certification privileges for turbine engines first requires completion of relevant turbine engine type training.

*Propellers required for turbo propeller aircraft only.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1 electrical and instrument systems. 
  3. Submit application to CASA to add B1 electrical and instrument systems scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS). 
  2. Undertake the exams through our contracted exam provider, applicable to B1 electrical and instrument systems.
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add B1 electrical and instrument systems scope to the licence.

Result:

  • Full B1.1 turbine aeroplanes licence issued (without type rating).

Career pathway 2 – B1.2 piston aeroplanes

Where and how you can gain your licence

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1.2 aeroplanes (airframe only).
  3. Submit application to us for initial issue of licence.

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1.2 aeroplanes (airframe only).
  3. Complete the relevant sections of the practical experience logbook.Submit with application to us for initial issue of licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1.2 powerplant (piston engines and propellers).
  3. Submit application to us to add piston engine scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1.2 powerplant (piston engines and propellers).
  3. Complete the relevant sections of the practical experience logbook and submit with application to CASA to add piston engine scope to the licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1 electrical and instrument systems.
  3. Submit application to us to add B1 electrical and instrument systems scope.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1 electrical and instrument systems.
  3. The relevant sections of the complete practical experience logbook and submit with application to CASA to add B1 electrical and instrument systems scope to the licence.

Result:

  • Full B1.2 piston aeroplanes licence issued (without type rating).

Modular licensing – Category B1 (helicopters)

There are 2 pathways under the Category B1 (helicopters):

  • B1.3 turbine helicopters
  • B1.4 piston helicopters.

Career pathway 3 – B1.3 turbine helicopters

Where and how you can gain your licence

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1.3 helicopters (airframe only).
  3. Submit application to us for initial issue of licence.

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1.3 helicopters (airframe only).
  3. Complete the relevant sections of the practical experience logbook. Submit with application to us for initial issue of licence.

Where and how you can add to your licence now

Part 147 MTO

  1. undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to powerplant (turbine engines).
  3. submit application to us to add turbine engine scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through CASA’s contracted exam provider, applicable to powerplant (turbine engines).
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add turbine engine scope to the licence.

Note: Certification privileges for turbine engines first requires completion of relevant turbine engine type training.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1 electrical and instrument systems.
  3. Submit application to us to add B1 electrical and instrument systems scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through CASA’s contracted exam provider, applicable to B1 electrical and instrument systems.
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add B1 electrical and instrument systems scope to the licence.

Result:

Career pathway 4 – B1.4 piston helicopters

Where and how you can gain your licence

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1.4 helicopters (airframe only).
  3. Submit application to us for initial issue of licence.

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B1.4 helicopters (airframe only). 
  3. Complete the relevant sections of the practical experience logbook. Submit with application to us for initial issue of licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to powerplant (piston engines).
  3. Submit application to us to add piston engine scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to powerplant (piston engines).
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add piston engine scope to the licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B1 electrical and instrument systems.
  3. Submit application to CASA to add B1 electrical and instrument systems scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through CASA’s contracted exam provider, applicable to B1 electrical and instrument systems.
  3. Complete the relevant sections of the practical experience logbook and submit with application to CASA to add B1 electrical and instrument systems scope to the licence.

Result: 

  • Full B1.4 piston helicopters licence issued (without type rating).

Modular licensing – Category B2 (all aircraft)

There is 1 pathway under the Category B2 (all aircraft):

  •  B2 electrical systems / instrument systems / radio systems (E/I/R).

Career pathway – B2 electrical systems / instrument systems / radio systems (E/I/R)

Where and how you can gain your licence

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B2 electrical systems.
  3. Submit application to us for initial issue of licence.

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B2 electrical systems.
  3. Complete the relevant sections of the practical experience logbook. Submit with application to us for initial issue of licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B2 instrument systems
  3. Submit application to us to add instrument systems scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B2 instrument systems. 
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add instrument systems scope to the licence.

Where and how you can add to your licence now

Part 147 MTO

  1. Undertake formal training and practical assessment.
  2. Part 66 theory exams applicable to B2 radio systems.
  3. Submit application to us to add radio systems scope to the licence.

Where and how you can add to your licence after late 2024

After late 2024, you can complete either:

  • Part 147 MTO
  • Part 66 self-study (using Part 66 textbooks).

Part 66 self-study (using Part 66 textbooks)

  1. Self-study the relevant Part 66 basic knowledge modules – (Part 2A of Appendix I, of 66 MOS).
  2. Undertake the exams through our contracted exam provider, applicable to B2 radio systems.
  3. Complete the relevant sections of the practical experience logbook and submit with application to us to add radio systems scope to the licence.

Result:

  • Full B2 (E / I / R) licence issued (without type rating).

Related content

Last updated:
29 Feb 2024
Online version available at: https://www.casa.gov.au//licences-and-certificates/maintenance-engineers/part-66-modular-aircraft-engineer-licence-career-pathways
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