Part-66L Information

UK continuing airworthiness regulation requires BGA inspectors to hold a UK Part-66 licence with the correct category to certify a release to service for Part-21 sailplanes, powered sailplanes, TMGs and aeroplanes. A UK Part 66 licence is valid for 5 years from the date of issue.

This information is published to support BGA inspectors and those planning to become BGA inspectors. Feedback is welcome and in particular with reference to study resources.

The regulation

Part-66L regulation

Learning objectives and study resources

1L Basic knowledge

1L – learning objectives

1L – study resources:

Aviation Maintenance Technician Handbook – General (FAA-h-8083)

  • Chapter 1, Safety
  • Chapter 3, Mathematics
  • Chapter 5, Physics for aviation
  • Chapter 12, Fundamentals of Electricity and Electronics

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair

  • Chapter 1, Section 2, Health and Safety

2L – Human factors

2L – learning objectives

2L – study resources:

3L – Aviation legislation

3L – Aviation legislation learning objectives

3L – study resources:

4L – Airframe wooden, metal tube and fabric

4L – learning objectives

4L – study resources:

Aviation Maintenance Technician Handbook—Airframe (Volume 1):

  • Chapter 3, Aircraft Fabric Covering
  • Chapter 6, Aircraft Wood and Structural Repair
  • Chapter 8, Aircraft Painting and Finishing

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair

  • Chapter 1 Wood Structure
  • Chapter 2 Fabric covering
  • Chapter 4 Metal structure, welding and brazing
  • Chapter 6 Corrosion Inspection and protection
  • Chapter 7 Aircraft hardware, control cables and turnbuckles

Standard repairs to gliders (BGA)

5L – Airframe composite

5L – learning objectives

5L – study resources:

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair. Chapter 3. Fibreglass and plastics.

  • Repairs
  • Canopy repairs

Aviation Maintenance Technician Handbook (FAA-H-8031 31) —Volume 1 and Volume 2 Chapter 7. Composites.

Standard repairs to gliders (BGA)

Plastic plane patch primer (Ursula Hanle)

6L – Airframe metal

6L – learning objectives

6L – study resources:

Aviation Maintenance Technician Handbook – General (FAA-h-8083)

Chapter 7 Aircraft Materials, Hardware, and Processes
Chapter 8 Cleaning and Corrosion Control.
Chapter 10 Inspection Concepts and Techniques
Chapter 11 Hand Tools and Measuring Devices

Aviation Maintenance Technician Handbook—Airframe (FAA-H-8083-31 Volumes 1 en 2):

  • Chapter 4, Aircraft Metal Structural Repair
  • Chapter 5, Aircraft Welding
  • Chapter 13, Aircraft Landing gear systems

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair.

  • Chapter 3 Section 2 Metallic sandwich secondary structure repairs
  • Chapter 4 Metal structure, welding and brazing
  • Chapter 5 Non-destructive inspection
  • Chapter 6 Corrosion Inspection and protection
  • Chapter 7 Aircraft hardware, control cables and turnbuckles
  • Chapter 9 Aircraft systems and components

Standard repairs to gliders (BGA)

7L – Airframe general

7L – learning objectives

7L – study resources:

Aviation Maintenance Technician Handbook—General:

  • Chapter 6, Weight & Balance
  • Chapter 7, Materials
  • Chapter 9, Fluid lines
  • Chapter 10, Inspection concepts and techniques
  • Chapter 12, Fundamentals of Electricity & Electronics, 12-81, 12-89-94

Aviation Maintenance Technician Handbook (FAA-H-8031 31)

  • Chapter 1, Aircraft structures
  • Chapter 7, Composites, 7-15 Non destructive inspection
  • Chapter 10, Aircraft Instruments
  • Chapter 11, Communication and Navigation
  • Chapter 12, Hydraulic and pneumatic systems
  • Chapter 13 Landing gear
  • Chapter 14 Aircraft Fuel Systems

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair.

  • Chapter 5, Non Destructive testing
  • Chapter 7, Aircraft hardware
  • Chapter 8, Engines, Fuel, Exhaust, propellers, Section 1, 8-8 & 9, Section 2, 4, 5, 6
  • Chapter 9 Aircraft Systems and components; section 1 Landing gear, section 2 Hydraulics, section 3 Emergency equipment, section 4 Cabin interior
  • Chapter 10 Weight & Balance
  • Chapter 11 Aircraft Electrical Systems
  • Chapter 12 Aircraft avionics

Standard repairs to gliders (BGA)

8L – Powerplant

8L – learning objectives

8L – study resources:

Aviation Maintenance Technician Handbook— Power Plant Volume 1 and Volume 2.

  • Chapter 9, propellers
  • Chapter 10, Aircraft Instruments and systems, page 3-11
  • Chapter 14 Aircraft Fuel Systems

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair.

  • Chapter 8, Engines, Fuel, Exhaust, propellers, Section 1, 2, 3, 4, 5, 6

12L – Radio, Com, ELT, transponder, instruments

12L – learning objectives

12L – study resources

AC43-13-1B (FAA) Acceptable methods, techniques and practices – aircraft inspection and repair.

  • Chapter 11 Aircraft Electrical Systems

Aviation Maintenance Technician Handbook—Airframe

  • Volume 1 Chapter 9 Aircraft Electrical System

Aviation Maintenance Technician Handbook—Airframe

  • Volume 2 Chapter 11 Aircraft Electrical System

Batteries

Transponders and radios:

Other resources

AC65-9a (FAA) A&P Mechanic General Handbook

AC65-12a (FAA) A&P Mechanic Powerplant Handbook

AC65-15a (FAA) A&P Mechanic Airframe Handbook

BGA airworthiness and maintenance webpages 

CAA Part-66 information webpage

CAP393 (The ANO)

Theoretical knowledge testing

CAA published Part66L e-exams and module information

Please note that the CAA are responsible for the content of their exams. The Part66L examinations are only available online. The first step is for the candidate to register for the CAA customer portal. Once registered, the candidate can then engage with e-examination process. This candidate user guide explains in detail.

The training organisation is BGA and the reference number is GBR.DTO.0007.

Booked examinations are managed by BGA invigilators* who have been specifically approved by the CAA. Candidates are encouraged to contact the BGA office in good time so that an invigilator can be allocated for an online examination. Candidates are advised to only book exams once they feel fully prepared.

Further guidance is available from the BGA Chief Technical Officer.

*Current invigilators are Kate Byrne (SGC, Scotland & Borders), Pete Stratten (BGA office), Paul Whitehead (North East), Colin Watt (South East)

Application process

Part-66L licence CAA application process