Appendix VII — Basic knowledge requirements for category L aircraft maintenance
licence
Regulation
(EU) 2023/989
The definitions of the different levels of knowledge required in this Appendix are the same as those set out in point 1 of Appendix I.
1. Modularisation
The
modules required for each aircraft licence subcategory/category shall be in
accordance with the following matrix. Where applicable, the subject modules
are indicated by an ‘X’, while ‘n/a’ means that the subject module is not
applicable nor required.
The basic knowledge requirement for L5 shall
be the same as for any B1 subcategory (as indicated in Appendix I) plus other
modules as shown in the matrix.
|
Licence
subcategories |
||||||||
|
Composite sailplanes |
Sailplanes |
Composite powered sailplanes and
composite ELA1 aeroplanes |
Powered sailplanes and ELA1 aeroplanes |
Hot-air balloons |
Gas balloons |
Hot-air airships |
ELA2 gas airships |
Gas airships above ELA2 |
Subject modules |
L1C |
L1 |
L2C |
L2 |
L3H |
L3G |
L4H |
L4G |
L5 |
1L ‘Basic knowledge’ |
X |
X |
X |
X |
X |
X |
X |
X |
n/a |
2L ‘Human factors’ |
X |
X |
X |
X |
X |
X |
X |
X |
n/a |
3L ‘Aviation legislation’ |
X |
X |
X |
X |
X |
X |
X |
X |
n/a |
4L ‘Wooden and/or metal-tube structure covered with
fabric’ |
n/a |
X |
n/a |
X |
n/a |
n/a |
n/a |
n/a |
n/a |
5L ‘Composite structure’ |
X |
X |
X |
X |
n/a |
n/a |
n/a |
n/a |
n/a |
6L ‘Metallic structure’ |
n/a |
X |
n/a |
X |
n/a |
n/a |
n/a |
n/a |
n/a |
7L ‘Airframe – general, mechanical and electrical
systems’ |
X |
X |
X |
X |
n/a |
n/a |
n/a |
n/a |
n/a |
8L ‘Power plant’ |
n/a |
n/a |
X |
X |
n/a |
n/a |
X |
X |
X ([37]) |
9L ‘Balloons – hot-air balloons’ |
n/a |
n/a |
n/a |
n/a |
X |
n/a |
X |
n/a |
n/a |
10L ‘Balloons – gas (free/tethered) balloons’ |
n/a |
n/a |
n/a |
n/a |
n/a |
X |
n/a |
X |
X |
11L ‘Airships – hot-air/gas AIRSHIPS’ |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
X |
X |
X |
12L ‘Radio Com/ELT/Transponder/ Instruments’ |
X |
X |
X |
X |
n/a |
n/a |
X |
X |
X |
MODULE 1L – BASIC KNOWLEDGE |
Level |
1L.1 Mathematics — Arithmetic — Algebra — Geometry |
1 |
1L.2 Physics — Matter — Mechanics — Temperature |
1 |
1L.3 Electrics — AC and DC circuits |
1 |
1L.4 Aerodynamics/aerostatics |
1 |
1L.5 Workplace
safety and environmental protection |
2 |
MODULE 2L – HUMAN FACTORS |
Level |
2L.1 General |
1 |
2L.2 Human
performance and limitations |
1 |
2L.3 Social
psychology |
1 |
2L.4 Factors
that affect performance |
1 |
2L.5 Physical
environment |
1 |
2L.6 The
‘Dirty Dozen’ and risk mitigation |
2 |
MODULE 3L – AVIATION LEGISLATION
MODULE 3L – AVIATION LEGISLATION |
Level |
3L.1 Regulatory
framework |
1 |
3L.2 Continuing
airworthiness regulations |
1 |
3L.3 Repairs
and modifications (Part-ML) |
2 |
3L.4 Maintenance
data (Part-ML) |
2 |
3L.5 Licence
privileges and how to exercise them properly (Part-66, Part-ML) |
2 |
MODULE 4L – WOODEN AND/OR METAL-TUBE STRUCTURE
COVERED WITH FABRIC
MODULE 4L – WOODEN AND/OR METAL-TUBE STRUCTURE
COVERED WITH FABRIC |
Level |
4L.1 Airframe
wooden/combination of metal tube and fabric |
2 |
4L.2 Materials |
2 |
4L.3 Identifying
damages and defects |
3 |
4L.4 Standard
repair and maintenance procedures |
3 |
MODULE 5L – COMPOSITE STRUCTURE
MODULE 5L – COMPOSITE STRUCTURE |
Level |
5L.1 Airframe
fibre-reinforced plastic (FRP) |
2 |
5L.2 Materials |
2 |
5L.3 Identifying
damages and defects |
3 |
5L.4 Standard
repair and maintenance procedures |
3 |
MODULE 6L – METALLIC STRUCTURE
MODULE 6L – METALLIC STRUCTURE |
Level |
6L.1 Metallic
airframe |
2 |
6L.2 Materials |
2 |
6L.3 Identifying
damages and defects |
3 |
6L.4 Standard
repair and maintenance procedures |
3 |
MODULE 7L – AIRFRAME – GENERAL, MECHANICAL AND
ELECTRICAL SYSTEMS
MODULE 7L – AIRFRAME – GENERAL, MECHANICAL AND
ELECTRICAL SYSTEMS |
Level |
7L.1 Theory
of flight – gliders and aeroplanes |
1 |
7L.2 Airframe
structure – gliders and aeroplanes |
1 |
7L.3 Air
conditioning (ATA 21) |
1 |
7L.4 Electrical
power, cables and connectors (ATA 24) |
2 |
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) |
2 |
7L.12 Lights
(ATA 33) |
2 |
7L.13 Oxygen
(ATA 35) |
2 |
7L.14 Pneumatic/vacuum
(ATA 36) |
2 |
7L.15 Water
ballast (ATA 41) |
2 |
7L.16 Fasteners |
2 |
7L.17 Pipes,
hoses and connectors |
2 |
7L.18 Springs |
2 |
7L.19 Bearings |
2 |
7L.20 Transmissions |
2 |
7L.21 Control
cables |
2 |
7L.22 Fits
and clearances |
2 |
7L.23 Aircraft
weight and balance |
2 |
7L.24 Workshop
practices and tools |
2 |
7L.25 Disassembly,
inspection, repair and assembly techniques |
2 |
7L.26 Abnormal
events |
2 |
7L.27 Maintenance
procedures |
2 |
MODULE 8L – POWER PLANT |
Piston |
Turbine |
Electrical |
Level |
8L.1 General engine fundamentals |
X |
X |
X |
2 |
8L.2 Piston engine fundamentals and
performance |
X |
|
|
2 |
8L.3 Piston engine construction |
X |
|
|
2 |
8L.4 Piston engine fuel system
(non-electronic) |
X |
|
|
2 |
8L.5 Starting and ignition system |
X |
|
|
2 |
8L.6 Air intake, exhaust and cooling system |
X |
|
|
2 |
8L.7 Supercharging/turbocharging |
X |
|
|
2 |
8L.8 Lubrication systems of piston engines |
X |
|
|
2 |
8L.9 Engine indication systems |
X |
X |
X |
2 |
8L.10 Electric aircraft engines |
|
|
X |
2 |
8L.11 Turbine engine fundamentals and
performance |
|
X |
|
2 |
8L.12 Inlet and compressor |
|
X |
|
2 |
8L.13 Combustion chamber, starting and ignition
system |
|
X |
|
2 |
8L.14 Turbine section and exhaust |
|
X |
|
2 |
8L.15 Other turbine engine components and
systems |
|
X |
|
2 |
8L.16 Turbine engine inspections and ground
operation |
|
X |
|
2 |
8L.17 Propeller |
X |
X |
X |
2 |
8L.18 Full authority digital engine control
(FADEC) |
X |
X |
X |
2 |
8L.19 Lubricants and fuels |
X |
X |
X |
2 |
8L.20 Engine and propeller installation |
X |
X |
X |
2 |
8L.21 Engine monitoring and ground operation |
X |
X |
X |
2 |
8L.22 Engine/propeller storage and preservation |
X |
X |
X |
2 |
MODULE 9L – BALLOONS – HOT-AIR BALLOONS
MODULE 9L – BALLOONS – HOT-AIR BALLOONS |
Level |
9L.1 Theory
of flight – hot-air balloons |
1 |
9L.2 General
airframe of hot-air balloons |
2 |
9L.3 Envelope |
3 |
9L.4 Heater
system/burner |
3 |
9L.5 Basket
and basket suspension (including alternative devices) |
3 |
9L.6 Instruments |
2 |
9L.7 Equipment |
2 |
9L.8 Hot-air
balloon handling and storage |
2 |
9L.9 Disassembly,
inspection, repair and assembly techniques |
3 |
MODULES 10L – BALLOONS – GAS (FREE/TETHERED)
BALLOONS
MODULES 10L – BALLOONS – GAS (FREE/TETHERED)
BALLOONS |
Level |
10L.1 Theory
of flight – gas balloons |
1 |
10L.2 General
airframe of gas balloons |
2 |
10L.3 Envelope |
3 |
10L.4 Netting |
3 |
10L.5 Valves,
parachutes and other related systems |
3 |
10L.6 Load
ring |
3 |
10L.7 Basket
(including alternative devices) |
3 |
10L.8 Ropes
and lines |
3 |
10L.9 Instruments |
2 |
10L.10 Tethered
gas balloon (TGB) systems |
3 |
10L.11 Equipment |
2 |
10L.12 Gas balloon
handling and storage |
2 |
10L.13 Disassembly,
inspection, repair and assembly techniques |
3 |
MODULES 11L – AIRSHIPS – HOT-AIR/GAS AIRSHIPS
MODULES 11L – AIRSHIPS – HOT-AIR/GAS AIRSHIPS |
Level |
11L.1 Theory
of flight and control of airships |
2 |
11L.2 Airship
airframe structure – general concepts |
2 |
11L.3 Airship
envelope |
2 |
11L.4 Gondola |
3 |
11L.5 Airship
flight control (ATA 27/55) |
3 |
11L.6 Electrical
power (ATA 24) |
3 |
11L.7 Lights
(ATA 33) |
2 |
11L.8 Ice
and rain protection |
3 |
11L.9 Fuel
systems (ATA 28) |
2 |
11L.10 Engine
and propellers in airships |
2 |
11L.11 Airship
handling and storage |
2 |
11L.12 Disassembly,
inspection, repair and assembly techniques |
2 |
MODULE 12L – RADIO
COM/ELT/TRANSPONDER/INSTRUMENTS
MODULE 12L –
RADIO COM/ELT/TRANSPONDER/INSTRUMENTS |
Level |
12L.1 Radio Com/ELT |
2 |
12L.2 Transponder and FLARM |
2 |
12L.3 Instruments |
2 |
12L.4 Avionics general test equipment |
1 |
[37] Only applicable propulsion subjects of Module 8L are required; these depend on the B1 subcategory the applicant comes from.
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