How to become a licensed aircraft engineer

The Part 66 Manual of Standards (MOS) outlines the training requirements to qualify for a licence. To qualify as a licensed aircraft engineer and obtain a licence, you will need to the following:

  1. Demonstrate, by examination, a level of knowledge in the subject modules applicable to the category or subcategory of licence you are applying for. Refer to:
    • Basic knowledge and competency requirements (66.A.25 – Part 66 MOS), and
    • Appendix I, Part 1 and Part 2 – Part 66 MOS.
  2. Gain the required amount of practical maintenance experience for the category or subcategory of licence you are applying for. Refer to:
    • Basic practical experience requirements (66.A.30 – Part 66 MOS)

You can demonstrate the above training and experience through one of the 2 designated training pathways.

Training and examination pathways

There are 2 training pathways you can choose from to qualify for a Part 66 licence.

Part 147 Maintenance Training Organisation (MTO) pathway

This pathway involves:

  • formalised licence category training and examination, and
  • assessment of practical experience.

A Part 147 MTO is approved by us to deliver licence category training and aircraft type training.

If you choose to undertake your licence category training via this pathway, you will enrol as a student at one of the CASA approved Part 147 MTOs and study under the Australian Vocational Education and Training (VET) system to gain one of the relevant qualifications outlined below:

  • For a Category A licence — Certificate II in Aircraft Line Maintenance.
  • For a Category B1 or B2 licence — Diploma of Aeroskills (Mechanical or Avionics).

You will also undertake an examination against the knowledge module requirements for the category licence you want to achieve.

Training through this pathway may attract State Government subsidies.

Part 66 self-study training and examination pathway

This pathway involves licence category training under the new Part 66 self-study training and examination pathway. You will:

  • complete relevant Part 66 module (theory) exams, and
  • submit a practical experience logbook to us.

This pathway introduces extra flexibility into the Australian aircraft maintenance licensing system. It improves accessibility of training for applicants who are:

  • not located near a Part 147 MTO
  • not able to train and be assessed by a Part 147 MTO.

If you choose the self-study pathway, you will use Part 66 textbooks to study at your own pace. This pathway allows you to meet the requirements of a licence in a more flexible way.

Study material

You can purchase electronic and hard-copy publications of EASA Part 66 textbooks (Modules 1-9 and 11-17).

The Part 66 Acceptable Means of Compliance and Guidance Material lists some websites where you can purchase the textbooks.

Practical experience requirements

If you are an aircraft maintenance engineer participating in the self-study training pathway, you will need to record your practical experience in the CASA Part 66 basic practical experience logbook. This is how you will provide evidence for:

  • Part 2 - Basic skills practical experience (competencies)
  • Part 3 - Practical maintenance experience (work experience on operational aircraft).

For more information, see the Part 66 basic practical experience logbook user guide.

Once completed, you must submit the logbook to us as a record of your practical maintenance experience.

Last updated:
9 Dec 2021
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