Navigate / EASA
AMC1 Appendix VIII — Basic examination standard for category L aircraft maintenance licence

ED Decision 2023/019/R

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