Module 10.2 — Part-66 licences, privileges and the basic knowledge system (with Part-147)

Why this sub-module matters

10.2 is level 2 for all categories and has the largest single question allocation in Module 10 (the syllabus asks for a "deep understanding" of licences, privileges and authorisations). Expect numbers: ages, years, months, form numbers.

Licence categories (66.A.3)

Category	Subcategories / scope
A	A1 aeroplanes turbine; A2 aeroplanes piston; A3 helicopters turbine; A4 helicopters piston
B1	B1.1 aeroplanes turbine; B1.2 aeroplanes piston; B1.3 helicopters turbine; B1.4 helicopters piston
B2	Avionics — applicable to all aircraft
B2L	Avionics "light" — all aircraft except Group 1; system ratings: com/nav, instruments, autoflight, surveillance, airframe systems (minimum one)
B3	Piston-engine non-pressurised aeroplanes of 2 000 kg MTOM and below
L	L1C, L1, L2C, L2, L3H, L3G, L4H, L4G, L5 — sailplanes, powered sailplanes and ELA1 aeroplanes, balloons, airships
C	Base maintenance — aeroplanes and helicopters

Aircraft groups (66.A.5)

Group	Aircraft
Group 1	Complex motor-powered aircraft; multi-engine helicopters; aeroplanes (other than piston) with maximum certified operating altitude above FL290; aircraft with fly-by-wire; gas airships other than ELA2
Group 2	Other than Group 1: 2a single turboprop aeroplanes (and turbine aeroplanes EASA classifies as lower complexity); 2b single turbine helicopters (and some multi-turbine); 2c single piston helicopters (and some multi-piston)
Group 3	Piston-engine aeroplanes other than Group 1
Group 4	Sailplanes, powered sailplanes, balloons and airships other than Group 1

Ratings required (66.A.45)

Licence	Group 1	Group 2	Group 3	Group 4
B1, B2, C	Individual type rating	Type, manufacturer subgroup or full subgroup rating	Type or full group rating	B2 only: full group
B2L	—	Manufacturer subgroup or full subgroup	Full group	Full group
B3	Single rating "piston-engine non-pressurised aeroplanes of 2 000 kg MTOM and below"
A	No rating on the licence — task training and company authorisation (145.A.35)

• Type rating requires approved type training (theory + practical) per Appendix III; the first type rating in a category/subcategory also needs on-the-job training (OJT) (not required for category C).
• For Group 2 and 3, a type may also be endorsed by type evaluation plus demonstrated practical experience.
• Manufacturer subgroup rating (B1/C): type requirements met for at least 2 types from the same manufacturer; full subgroup: at least 3 types from different manufacturers.
• B1 Group 3 and B3 ratings carry limitations (e.g. pressurised aeroplanes, metal structure, composite structure, wooden structure, metal tubing and fabric) unless experience is shown; limitations are removed by demonstrating experience or by a practical assessment by the competent authority (66.A.50).