EASA Part66
Module 10
Cats A · B1 · B2 · B2L · B3
Aviation Legislation EASA Part66 — Module 10 Practice Questions
Module 10 of the EASA Part66 syllabus covers the regulatory framework that governs aircraft maintenance in Europe — ICAO, EASA, Part-145, Part-M, Part66 itself, occurrence reporting and the new cybersecurity section. Below: what's examinable, exam format, and seven sample questions in the style you'll meet on exam day.
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What Module 10 covers — in plain English
Module 10 is the legislation module — the regulatory backbone every licensed aircraft maintenance engineer
operates inside. It is one of the more memorisation-heavy modules in the EASA Part66 syllabus, dealing
less with how aircraft work and more with who is allowed to do what, under which approval, recorded for
how long, and reported to whom. The syllabus was substantially rewritten by Commission Implementing
Regulation (EU) 2023/989 (effective 12 June 2024), which added new sub-sections on independent
certifying staff, oversight principles in continuing airworthiness, maintenance beyond current EU
regulations, and — for the first time — cybersecurity in aviation maintenance under Part-IS.
You are expected to know how the regulatory hierarchy fits together. ICAO sets the global Standards and
Recommended Practices through the 19 Annexes to the Chicago Convention; the European Commission turns the
relevant ones into Regulation (EU) 2018/1139 (the EASA Basic Regulation); and EASA issues
the implementing rules — including Regulation (EU) No 1321/2014, whose annexes you will reference daily
(Part-M, Part-145, Part66, Part-147, Part-ML, Part-CAMO, Part-CAO). Sitting alongside the hard law are the
AMC, GM and CS issued by EASA: acceptable means of compliance and guidance, not binding rules. Most exam
questions are direct recall of specific articles — pass marks, retention periods, CAT II/III decision
heights, licence privileges, occurrence-reporting timelines — so a slow first pass through the regulation
text pays off more here than in the engineering modules.
All five licence categories (A, B1, B2, B2L, B3) sit Module 10, but the question count differs:
44 questions in 55 minutes for B1, B2 and B2L; 32 questions in 40 minutes for A and B3.
Knowledge levels are mostly 1 and 2 across the section, with one level-3 sub-section
(10.4 Independent Certifying Staff) reserved for the B-categories — Cat A candidates skip
10.4 and 10.9 entirely. The newer cybersecurity sub-section (10.10) is level 1 for everyone and is best
approached after the rest of the module sits comfortably, because it draws on terminology from Part-IS that
does not appear elsewhere in the Part66 syllabus. The full per-section knowledge-level breakdown is on our
Module 10 syllabus page.
These samples are drawn from our live Module 10 question bank of 500 questions. The full
timed practice quiz draws 44 questions per attempt (or 32 for Cat A), scored against the official EASA 75 % pass mark, with weak-area tracking across attempts.
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Ready for the full Module 10 timed practice quiz?
Sign up, pick Module 10 from the dashboard, and take a timed exam drawn from our
500-question bank — the number of questions follows your licence category (32 for Cat A,
44 for B1/B2/B2L/B3). Your score is tracked across attempts and we surface
your weakest sub-topics so revision time pays off.