Share to any workspace or social platform
66.A.10 sets out the procedural requirements for applying for an aircraft maintenance licence, including where to submit the application and what documentation must accompany it.
What it means in practice
Anyone seeking a Part 66 aircraft maintenance licence must submit their application to the competent authority of a Member State, using EASA Form 19. The application must be accompanied by all documentation needed to demonstrate that the applicant meets the eligibility, knowledge, and experience requirements for the licence category being sought.
The competent authority to which you apply is normally that of the Member State where you reside or where you intend to work. Once issued, the licence is valid across all EASA Member States, so you do not need to reapply when working in a different country. However, if you wish to add type ratings or change licence categories, you must follow the same application process.
Key requirements
The application must include proof of identity, evidence of basic knowledge examination passes, documentation of relevant maintenance experience, and any certificates from approved training organisations. All documents must be complete and verifiable. The competent authority will assess the application against the requirements of Part 66 before issuing or amending the licence.
Applications for type rating endorsements must include evidence of completing an approved type training course and passing the associated examination, along with documented practical experience on the aircraft type. For conversions from national licences, additional documentation demonstrating equivalency may be required.
Common compliance gaps
The most frequent issue with applications is incomplete documentation, particularly around experience records. Applicants often submit logbook entries or employer letters that lack sufficient detail to verify the type and duration of maintenance experience. Competent authorities require specific, verifiable evidence of hands-on experience, and vague or generic statements of employment are routinely rejected, causing delays in licence issuance.
Part 66 Training
Working towards your Part 66 licence?
Sofema's Part 66 Foundation course walks you through the full licensing framework — categories, modules, experience requirements, and the path to certification.
View Part 66 courseSources
Have a question about this regulation?
Search across all regulation pages and glossary terms.