Basic training

Is it possible to grant a Part-147 approval to a training organisation which intend to conduct only training on one or only several modules?

No, a Part-147 approval can only be granted to an organisation which plans to conduct training on all the modules related to a (sub)category of an aircraft maintenance licence, so that a full understanding of the training needs, interfaces and examination relative to that (sub)category of licence is achieved.

However, some modules may be sub-contracted as mentioned in 147.A.145(d).

It does not mean that the Part-147 organisation is not allowed to conduct courses on just one module. In particular, in the case of limitations resulting from the conversion process, limitations can be lifted through the teaching and/or examination of one module or a part of a module.


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I have completed a part of my basic training course (including some module examinations) in an approved Part-147 organisation. I’m moving to another country and would like to continue my basic training in a Part-147 organisation located in the country where I move in. Is this possible? What will happen with my certificates? Can I get the maximum reduction of the experience required for the Part-66 licence?

There are several scenarios possible depending on the particular case. Here are some most probable cases for category B1 or B2:

Case No 1 (baseline – standard case) :  The applicant completes the whole basic knowledge course (including the training, practical assessments and basic modules examinations) in an approved Part-147 maintenance training organisation.

Result: The Certificate of Recognition (CoR) of the basic course completion is issued by the organisation. The applicant can apply for the Part-66 licence with 2 years of maintenance experience.

Case No 2: The applicant completes the basic training in two different Part-147 AMTO (including the examinations).

Result: The CoRs for the successful examination of each individual module are issued (by different AMTO), but not the CoR for the basic course completion. The applicant does not benefit from the experience reduction and have to fulfil the requirement of 3 years of experience (if recognised as skilled worker) or 5 years.

  • It may happen that some of the competent authorities would give the complete credit on experience in case the applicant can prove that:the training completed in different organisation covers in total the Appendix I syllabus; and
  • all the practical assessments are performed and passed successfully; and
  • all interactions between the modules have been correctly addressed; and
  • there was a right proportion of theoretical and practical training for each subject.

As this demonstration requires a significant investment, the applicant is invited to directly contact the competent responsible for performing such an investigation.

Case No 3: The applicant has completed a full basic training course in one approved Part-147 organisation. Unfortunately, the candidate was not in a position to successfully pass the full  examination process (all modules) in that organisation and had to pass the missing portion of the examination in another approved Part-147 organisation.

Result: In this case the applicant would receive a CoR for basic training only as well as the CoRs related to the modules successfully passed in that approved Part-147 organisation. The examination for the missing modules may be successfully passed in another approved Part-147 organisation(s) with issuance of the related CoRs thereof. The combination of all these CoRs may be sufficient for the competent authority to recognise the training course as successfully “completed” and to grant the maximum credit for the experience (only 2 years needed) for the issue of the license.

Case No 4: The applicant did not attend a Part-147 basic training course but only took  examinations in one or more approved Part-147 organisation(s).

Result: The applicant would receive several CoRs for the successful examination of individual modules from one or more approved Part-147 organisations. No credit of experience as per 66.A.30 will be granted (except for skill workers – 3 years). Standard 5 years of experience will be required.

Further information is given in AMC to Appendix III to Part-147 “Certificates of Recognition referred to in Annex IV (Part-147) – EASA Forms 148 and 149.


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Is it possible to grant a Part-147 approval to a training organisation which intend to conduct only basic knowledge examinations?

No, a Part-147 approval can only be granted to an organisation which can prove its capability to conduct training and examinations on a complete syllabus of at least one (sub)category of the Part-66 licence. Only in the case the organisation holds the approval for the complete basic training course, it may conduct basic examinations not being an integral part of the approved basic training course.


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Is it possible to grant a Part-147 approval to an organisation applying only for basic knowledge training?

Yes, in such case Form 148 shall be used as template for the Certificate of Recognition, which specifies “Basic training course” or “Basic examination”. In the particular case where all modules are not conducted, (see next questions) the certificate shall state only “Basic examination” and the modules conducted be mentioned on the certificate including the date(s) of the examination(s).

Reference: 147.A.145


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Part-147 approved organisations have the privilege to carry out basic examinations on behalf of the competent authority. Does this imply that the said authority has to supply or approve examination questions?

No, the competent authority does not have to supply examination questions. However, as part of the oversight, the authority must sample check and review the organisations' question data bank and the examination process.


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