EASA Module 13
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ExploreAbout this exam
EASA Module 13 is the regulatory-law module of the Part-66 aircraft maintenance licence syllabus. It is aimed at certifying staff, maintenance planners, quality and compliance staff, and anyone who needs to work confidently inside the EU continuing-airworthiness system rather than only at the aircraft. The module is examined in four subject areas: continuing airworthiness and the Part-66 licensing framework, continuing airworthiness organisations under Part-CAMO and Part-CAO, maintenance organisations under Part-145, and maintenance training organisations under Part-147. Questions typically test how responsibilities are split between the owner, the CAMO, the maintenance organisation and the competent authority, and what each organisation must document, approve and retain. Preparation should be regulation-first: read the actual Implementing Rules and their Acceptable Means of Compliance, then use questions to find gaps. Do not memorise isolated numbers without knowing which regulation and which organisation they attach to - that is the most common source of lost marks. This page is independent study material and is not affiliated with, endorsed by, or published by EASA or any competent authority. Always confirm current rule text and any transitional provisions against the official EASA and authority publications before relying on them.
What you'll study
About EASA Module 13 preparation
What does Module 13 actually cover?
Four areas: continuing airworthiness and Part-66 licensing, continuing airworthiness organisations (Part-CAMO and Part-CAO), maintenance organisations (Part-145), and maintenance training organisations (Part-147). Expect questions on responsibilities, approvals, records and interfaces between these organisations rather than deep technical aircraft content.
How is the exam delivered?
Part-66 modules are normally delivered as multiple-choice examinations by a Part-147 training organisation or the competent authority, under their own invigilation rules. The exact question count, time allowed, pass mark and fee are set by the examining organisation, so confirm them directly with the organisation you book through.
How difficult is Module 13 compared with technical modules?
The content is not mathematically hard, but it is precise. Marks are lost on wording: which organisation is responsible for a task, what must be approved versus merely recorded, and which regulation applies. Candidates who read the rule text carefully usually find it more manageable than heavy technical modules.
Can I retake it if I fail?
Retake arrangements, waiting periods and any limits on attempts are set by the examining organisation and, where relevant, the competent authority - not by a single Europe-wide rule you can rely on. Ask your training organisation for its retake policy in writing before you sit the exam.
What is the best study order?
Start with continuing airworthiness and the licensing framework, because it defines the roles everything else refers to. Then study Part-CAMO and Part-CAO, followed by Part-145, and finish with Part-147. Read each Implementing Rule alongside its Acceptable Means of Compliance so you can distinguish hard requirements from acceptable ways of meeting them.
What are the most common failure modes?
Mixing up the responsibilities of the owner, the CAMO and the Part-145 organisation; confusing Part-CAMO with Part-CAO scope; and memorising time limits or record-retention periods without knowing which organisation and which regulation they belong to. Another frequent error is assuming a training organisation's approval covers maintenance.
Do I need to memorise regulation numbers?
Knowing the structure helps, but understanding what each requirement obliges an organisation to do matters more. Examiners can ask about a requirement without naming its paragraph. Learn the obligation, who holds it, and what evidence demonstrates compliance; use the paragraph references as retrieval cues, not as the answer itself.
Where should I check for current rules?
Use the official EASA website and the Easy Access Rules publications, plus your national competent authority for national procedures and fees. Rule text and transitional arrangements change, so verify anything you have memorised from older study material against the current published text before the exam.