EASA Part-66 Module 10 – Aviation Legislation

This course teaches the Part-66 Module 10 aviation legislation syllabus as it stands after Commission Implementing Regulation (EU) 2023/989, which applies from 12 June 2024. It follows Appendix I sub-modules 10.1 to 10.10, including the headings the rewrite added: independent certifying staff, oversight principles, and cybersecurity in aviation maintenance. It is online, self-paced and in English, and finishes with a downloadable completion certificate for your training file.

Who must take this course (and why)

Module 10 is on every basic licence path. Appendix I applies it to category A, B1, B2, B2L and B3, and a category C applicant meets either the B1 or B2 knowledge levels. So the first audience is any Part-66 licence candidate who still has Module 10 to pass, and any licence holder adding a category or subcategory who has to complement their knowledge under 66.A.25(f).

The second audience is people who already hold a licence but studied Module 10 under the old syllabus, which ran only from 10.1 to 10.7. The 2023/989 rewrite added three headings that did not exist before — independent certifying staff, oversight principles in continuing airworthiness, and cybersecurity in aviation maintenance — broadened the old national and international requirements topic into 10.9, and reshaped the rest around Regulation (EU) 2018/1139. Quality and compliance staff who want one current, ordered picture of how the Annexes fit together often take it for that reason rather than for an examination.

What the regulation actually requires

Point 66.A.25(a) requires a licence applicant to demonstrate by examination a level of knowledge of the related subject modules in accordance with Appendix I. Point 66.A.25(b) states that the examinations must comply with the standard in Appendix II and may only be conducted by a training organisation approved in accordance with Annex IV (Part-147) or by the competent authority. Point 66.A.25(c) adds the 10-year rule: examinations must have been passed within 10 years before the licence application or the category addition, otherwise credits are sought under 66.A.25(d).

Appendix I defines the knowledge levels. Level 1 is a familiarisation with the principal elements of the subject; level 2 is a general knowledge of the theoretical and practical aspects and an ability to apply it; level 3 is a detailed knowledge and the capacity to combine and apply separate elements. Module 10 sits mostly at levels 1 and 2, with sub-module 10.4 at level 3 for the B categories.

What the course covers

Ten lessons after a free preview, one per Appendix I sub-module, with the detail from AMC1 Appendix I:

• Regulatory framework — 10.1: ICAO, the European Commission, EASA, Member States and national authorities, bilateral agreements, Regulation (EU) 2018/1139 with Regulations 748/2012 and 1321/2014, the relationship between hard law and AMC, GM and CS, occurrence reporting under Regulation (EU) No 376/2014, and how Part 21, Part-M, Part-145, Part-66, Part-147, Part-T, Part-ML, Part-CAMO and Part-CAO relate
• Certifying staff, maintenance — 10.2: Part-66 licences, privileges and authorisations, and how to exercise them
• Approved maintenance organisations — 10.3: Part-145 and Part-CAO
• Independent certifying staff — 10.4: privileges, responsibilities, record-keeping, limitations and oversight under Part-M, Part-66 and Part-ML
• Air operations — 10.5: Regulation (EU) No 965/2012, commercial versus non-commercial operations, AOCs, MEL and CDL, and the documents carried on board
• Certification of aircraft, parts and appliances — 10.6: Part 21 and the certification specifications
• Continuing airworthiness — 10.7: Part-M, Part-ML, Part-CAMO, Part-CAO and the aircraft maintenance programme
• Oversight principles in continuing airworthiness — 10.8
• Maintenance and certification beyond the current EU regulations — 10.9: Annex I aircraft, EMAR 66, national and international requirements
• Cybersecurity in aviation maintenance — 10.10

Initial vs continuation — which one do you need?

This is the initial course, and there is no continuation version, because Module 10 is not a repeating obligation. It is a licence basic knowledge subject under 66.A.25, passed once by examination, with the 10-year rule in 66.A.25(c) governing how long that pass remains usable for a licence application or a category addition.

The training that does repeat is on the Part-145 side. Point 145.A.35(d) requires certifying staff and support staff to receive sufficient training in each 2-year period covering relevant technologies, organisation procedures and safety management including human factor issues. That cycle is served by the Safety Training including Human Factors Continuation course, not by a legislation module. If you are looking for the organisation’s regulatory course rather than the licence subject, the EASA Part-145 Regulatory Training course is the one to buy.

Exam, certificate and how organisations accept it

On completion you download a completion certificate from MOST.AERO, the training brand of AEROVISER OÜ in Estonia, showing the course title and the date you finished. Be clear about what that certificate is: proof you completed a preparation course. It is not a Part-66 basic knowledge examination result and it carries no licence credit, because under 66.A.25(b) only a Part-147 approved organisation or the competent authority may examine you.

For the real examination, Appendix II to Part-66 sets Module 10 at 32 multiple-choice questions in 40 minutes for category A, and 44 multiple-choice questions in 55 minutes for categories B1, B3, B2 and B2L, with no essay questions and a 75 per cent pass mark. Where an organisation uses this course as part of its own training record — for example alongside regulatory training under 145.A.30(e) — the completion certificate goes into the personnel record kept under 145.A.55(d), and acceptance is a matter for the MOE.

Price, access and how to enrol

The course costs €89 for one seat, a single payment with no subscription. It is delivered online and self-paced in English, so you can work through the ten lessons in the order that suits your examination date and revisit the heavier sub-modules. The Welcome lesson is a free preview, which is the quickest way to check the level against Appendix I before paying.

The enrol button on this page opens the course on the MOST.AERO store, where you check out. MOST.AERO is a brand of AEROVISER OÜ, Estonia. Training an apprentice intake or a group of category additions? Email info@most.aero with the headcount and target month and we will set up seats on a single invoice. If a training manager wants the lesson-to-sub-module mapping against Appendix I for the course file, ask and we will send it.

Related guides

• Part-66 Module 10 after Regulation (EU) 2023/989 — what the rewrite actually changed, sub-module by sub-module, and how the examination format moved.
• Is online human factors, fuel tank safety and EWIS training accepted by EASA and the UK CAA? — where online delivery is a matter for your MOE and where a Part-147 approval is the deciding factor instead.

If you are choosing between this course and Part-145 regulatory training, read the first guide for what the 2023/989 rewrite actually changed, then decide by audience rather than by subject. A licence candidate wants Module 10; a compliance monitoring manager writing a training matrix against the MOE almost always wants the Part-145 regulatory course instead, and sometimes both, for different people.