AMCAcceptable means of compliance
AMC1 Appendix VIII — Basic examination standard for category L aircraft maintenance licence
NUMBER OF QUESTIONS PER SUBMODULE The tables below show the number of questions recommended for each submodule. Justified deviations from these values are also acceptable, provided that the sum of the questions for the submodules equals the total number for a given module.
MODULE 1L — BASIC KNOWLEDGE
| MODULE 1L — BASIC KNOWLEDGE | Nr of questions |
|---|---|
| 20 | |
| 1L.1 Mathematics | 4 |
| 1L.2 Physics | 5 |
| 1L.3 Electrics | 4 |
| 1L.4 Aerodynamics/aerostatics | 2 |
| 1L.5 Workplace safety and environmental protection | 5 |
MODULE 2L — HUMAN FACTORS
| MODULE 2L — HUMAN FACTORS | Nr of questions |
|---|---|
| 20 | |
| 2L.1 General | 3 |
| 2L.2 Human performance and limitations | 2 |
| 2L.3 Social psychology | 2 |
| 2L.4 Factors that affect performance | 4 |
| 2L.5 Physical environment | 4 |
| 2L.6 The ‘Dirty Dozen’ and risk-mitigation | 5 |
MODULE 3L — AVIATION LEGISLATION
| MODULE 3L — AVIATION LEGISLATION | Nr of questions |
|---|---|
| 28 | |
| 3L.1 Regulatory framework | 4 |
| 3L.2 Continuing airworthiness regulations | 6 |
| 3L.3 Repairs and modifications (Part-ML) | 5 |
| 3L.4 Maintenance data (Part-ML) | 5 |
| 3L.5 Licence privileges and how to exercise them properly (Part-66, Part-ML) | 8 |
MODULE 4L — WOODEN AND/OR METAL-TUBE STRUCTURE COVERED WITH FABRIC
| MODULE 4L — WOODEN AND/OR METAL-TUBE STRUCTURE COVERED WITH FABRIC | Nr of questions |
|---|---|
| 40 | |
| 4L.1 Combined structures made of wood, metal tube and fabric | 8 |
| 4L.2 Materials | 8 |
| 4L.3 Identifying damages and defects | 12 |
| 4L.4 Standard repair and maintenance procedures | 12 |
MODULE 5L — COMPOSITE STRUCTURE
| MODULE 5L — COMPOSITE STRUCTURE | Nr of questions |
|---|---|
| 32 | |
| 5L.1 Fibre-reinforced plastic (FRP) airframe | 6 |
| 5L.2 Materials | 6 |
| 5L.3 Identifying damages and defects | 10 |
| 5L.4 Standard repair and maintenance procedures | 10 |
MODULE 6L — METALLIC STRUCTURE
| MODULE 6L — METALLIC STRUCTURE | Nr of questions |
|---|---|
| 32 | |
| 6L.1 Metallic airframe | 6 |
| 6L.2 Materials | 6 |
| 6L.3 Identifying damages and defects | 10 |
| 6L.4 Standard repair and maintenance procedures | 10 |
MODULE 7L — AIRFRAME: GENERAL, MECHANICAL AND ELECTRICAL SYSTEMS
| MODULE 7L — AIRFRAME: GENERAL, MECHANICAL AND ELECTRICAL SYSTEMS | Nr of questions |
|---|---|
| 60 | |
| 7L.1 Theory of Flight — gliders and aeroplanes | 4 |
| 7L.2 Airframe Structure — gliders and aeroplanes | 4 |
| 7L.3 Air conditioning (ATA 21) | 1 |
| 7L.4 Electrical power, cables, and connectors (ATA 24) | 3 |
| 7L.5 Equipment and furnishing (ATA 25) | 2 |
| 7L.6 Fire protection and other safety systems (ATA 26) | 2 |
| 7L.7 Flight controls (ATA 27) | 3 |
| 7L.8 Fuel system (ATA 28) | 2 |
| 7L.9 Hydraulic power (ATA 29) | 2 |
| 7L.10 Ice and rain protection (ATA 30) | 1 |
| 7L.11 Landing gear (ATA 32) | 3 |
| 7L.12 Lights (ATA 33) | 1 |
| 7L.13 Oxygen (ATA 35) | 1 |
| 7L.14 Pneumatic/vacuum (ATA 36) | 1 |
| 7L.15 Water ballast (ATA 41) | 1 |
| 7L.16 Fasteners | 2 |
| 7L.17 Pipes, hoses, and connectors | 2 |
| 7L.18 Springs | 1 |
| 7L.19 Bearings | 1 |
| 7L.20 Transmissions | 2 |
| 7L.21 Control cables | 3 |
| 7L.22 Fits and clearances | 1 |
| 7L.23 Aircraft weight and balance | 2 |
| 7L.24 Workshop practices and tools | 4 |
| 7L.25 Disassembly, inspection, repair, and assembly techniques | 4 |
| 7L.26 Abnormal events | 3 |
| 7L.27 Maintenance procedures | 4 |
MODULE 8L — POWER PLANT
| MODULE 8L — POWER PLANT | Nr of questions |
|---|---|
| 64 | |
| 8L.1 Engine fundamentals — general | 2 |
| 8L.2 Piston-engine fundamentals and performance | 2 |
| 8L.3 Piston-engine construction | 3 |
| 8L.4 Piston-engine fuel system (non-electronic) | 2 |
| 8L.5 Starting and ignition systems | 3 |
| 8L.6 Air intake, exhaust, and cooling systems | 2 |
| 8L.7 Supercharging/turbocharging | 2 |
| 8L.8 Lubrication systems of piston engines | 2 |
| 8L.9 Engine indication systems | 3 |
| 8L.10 Electric and hybrid aircraft engines | 9 |
| 8L.11 Turbine-engine fundamentals and performance | 2 |
| 8L.12 Inlet and compressor | 2 |
| 8L.13 Combustion chamber, starting and ignition system | 2 |
| 8L.14 Turbine section and exhaust | 2 |
| 8L.15 Other turbine-engine components and systems | 2 |
| 8L.16 Turbine-engine inspections and ground operation | 3 |
| 8L.17 Propeller | 7 |
| 8L.18 Full authority digital engine control (FADEC) | 2 |
| 8L.19 Lubricants and fuels | 3 |
| 8L.20 Engine and propeller installation | 4 |
| 8L.21 Engine monitoring and ground operation | 3 |
| 8L.22 Engine/propeller storage and preservation | 2 |
Note: In accordance with Appendix VII ‘1. Modularisation’ to Annex III, Module 8L training subjects for L5 category AML and, therefore, the number of questions, should be limited to the relevant propulsion system. As such, in the above table, certain submodules may not be applicable and should not be taken into account, and the total number of questions should also be adapted accordingly.
MODULE 9L — BALLOONS: HOT-AIR BALLOONS
| MODULE 9L — BALLOONS: HOT-AIR BALLOONS | Nr of questions |
|---|---|
| 36 | |
| 9L.1 Theory of flight — hot-air balloons | 2 |
| 9L.2 Airframe of hot-air balloons | 3 |
| 9L.3 Envelope | 4 |
| 9L.4 Heater system / burner | 4 |
| 9L.5 Basket and basket suspension (including alternative devices) | 4 |
| 9L.6 Instruments | 5 |
| 9L.7 Equipment | 2 |
| 9L.8 Hot-air balloon handling and storage | 4 |
| 9L.9 Disassembly, inspection, repair, and assembly techniques | 8 |
MODULE 10L — BALLOONS: GAS (FREE/TETHERED) BALLOONS
| MODULE 10L — BALLOONS: GAS (FREE/TETHERED) BALLOONS | Nr of questions |
|---|---|
| 44 | |
| 10L.1 Theory of flight of gas balloons | 2 |
| 10L.2 Airframe of gas balloons | 3 |
| 10L.3 Envelope | 3 |
| 10L.4 Netting | 1 |
| 10L.5 Valves, parachutes, and other related systems | 1 |
| 10L.6 Load ring | 1 |
| 10L.7 Basket (including alternative devices) | 4 |
| 10L.8 Ropes and lines | 2 |
| 10L.9 Instruments | 5 |
| 10L.10 Tethered gas balloon (TGB) systems | 8 |
| 10L.11 Equipment | 2 |
| 10L.12 Gas-balloon handling and storage | 4 |
| 10L.13 Disassembly, inspection, repair, and assembly techniques | 8 |
MODULE 11L — AIRSHIPS: HOT-AIR/GAS AIRSHIPS
| MODULE 11L — AIRSHIPS: HOT-AIR/GAS AIRSHIPS | Nr of questions |
|---|---|
| 40 | |
| 11L.1 Theory of flight and control of airships | 3 |
| 11L.2 Airship airframe structure — general concepts | 3 |
| 11L.3 Airship envelope | 3 |
| 11L.4 Gondola | 6 |
| 11L.5 Airship flight controls (ATA 27/55) | 2 |
| 11L.6 Electrical power (ATA 24) | 3 |
| 11L.7 Lights (ATA 33) | 1 |
| 11L.8 Ice and rain protection | 2 |
| 11L.9 Fuel systems (ATA 28) | 3 |
| 11L.10 Engines and propellers in airships | 2 |
| 11L.11 Airship handling and storage | 4 |
| 11L.12 Disassembly, inspection, repair, and assembly techniques | 8 |
MODULE 12L — RADIO COM / ELTs / TRANSPONDERS / INSTRUMENTS
| MODULE 12L — RADIO COM / ELTs / TRANSPONDER / INSTRUMENTS | Nr of questions |
|---|---|
| 20 | |
| 12L.1 Radio COM / ELTs | 6 |
| 12L.2 Transponder and FLARM | 5 |
| 12L.3 Instruments | 8 |
| 12L.4 Avionics general test equipment | 1 |
AMC — Regulation (EU) No 1321/2014 · ED Decision 2023/019/R · Continuing Airworthiness Easy Access Rules · EAR revision 2 Sep 2025