How to Book and Sit UK CAA Part-66 Examinations

Obtaining a UK CAA Part-66 Aircraft Maintenance Licence begins with passing the required basic knowledge examinations. The process is straightforward when you understand the licence category, modules, approved examination provider and documentation required.

What Part-66 Covers

Part-66 applies to the individual aircraft maintenance engineer. It defines the basic knowledge, examination and experience requirements for an Aircraft Maintenance Licence (AML). For the latest requirements, refer to the UK CAA Part-66 guidance.

Part-66 is distinct from Part-145:

• Part-66 concerns the licence held by an individual aircraft maintenance engineer.
• Part-145 concerns the approval held by a maintenance organisation, such as an airline, MRO or engineering business.

A Part-66 licence holder exercises licence privileges within the scope of their licence and in accordance with the procedures and authorisations of the relevant maintenance organisation.

Which Part-66 Modules Do You Need?

The UK CAA Part-66 basic knowledge syllabus is divided into 17 modules. These cover subjects including mathematics, physics, electrical fundamentals, aerodynamics, aviation legislation, propulsion and maintenance practices.

The modules and knowledge levels required depend on the licence category. B1 mechanical and B2 avionics licence applicants, for example, have different module and level requirements. Before booking an examination, confirm the following:

• The licence category you intend to apply for.
• Whether you are completing an approved basic training course or following the self-study and modular examination route.
• Which modules or module elements you have already passed.
• Whether previous academic or technical qualifications may support an application for knowledge credit.

Use the current UK CAA Part-66 requirements as the basis for your plan. Do not rely solely on historic advice, online forums or examination requirements from another licensing authority.

Where to Book UK CAA Part-66 Examinations

Part-66 training and examinations are normally booked through a UK CAA-approved Part-147 maintenance training organisation. Subject to the scope of its approval, a Part-147 organisation may provide basic training and conduct associated examinations. You can also review the Part 147 training schools resource when comparing approved training options. The UK CAA Part-147 information explains the regulatory framework for approved maintenance training organisations.

Providers may offer classroom training, remote instructor-led tuition, modular examinations, resits and programmes for individual candidates or employers.

Resource Group Part-66 Training and Examinations

Resource Group provides Part-66 modular training and examination services through its approved maintenance training organisation. Its services are suitable for individuals working towards an Aircraft Maintenance Licence, engineers completing selected modules, and airlines, MROs and engineering companies requiring structured training programmes.

Some instructor-led courses may be delivered remotely. However, remote tuition does not necessarily mean that an examination can be taken remotely. Examination location, identity verification, invigilation and permitted materials must comply with the provider's approved procedures. Check the arrangements for the specific module before booking.

How to Book a Part-66 Module Examination

1. Select the Correct Module and Knowledge Level

Choose the module that applies to your intended licence category. Some modules are examined at different knowledge levels for different categories, including B1 and B2 licences.

If you are uncertain, confirm the requirement with the training provider before making payment. An incorrect module booking may not support your intended licence application.

2. Confirm the Date, Venue and Examination Format

Providers may run scheduled examination sessions throughout the year or arrange examinations alongside course dates and employer requirements. Confirm the following before booking:

• The examination date and start time.
• The venue or approved examination location.
• Whether the booking includes training, examination only, or both.
• Registration and photographic identification requirements.
• The examination format and duration.
• The resit policy.
• Cancellation and transfer terms.

Part-147 providers may also be able to arrange bespoke training and examination programmes for groups of engineers.

3. Register Using Accurate Personal Details

Use your full legal name exactly as it appears on your photographic identification. Your examination records and Certificate of Recognition should match the details used in any later licence application.

You may be asked to provide:

• Full name and contact details.
• Date of birth.
• Photographic identification.
• Previous examination records or certificates.
• Your intended licence category.
• Employer details, where the employer is funding the training or examination.

4. Retain Your Booking Documents

Keep copies of the booking confirmation, invoice and joining instructions. The provider should confirm what to bring, when to arrive and the rules that apply in the examination room.

Preparing for UK CAA Part-66 Examinations

Part-66 examinations require an understanding of the underlying principles, not only familiarity with multiple-choice questions. This is particularly important for modules involving systems, maintenance practices, legislation and aircraft technical knowledge.

A practical preparation plan should include:

• Working through the relevant Part-66 syllabus.
• Using course material from an approved training provider where available.
• Revising in regular, structured sessions.
• Practising calculations, diagrams and technical terminology.
• Taking timed mock examinations.
• Reviewing incorrect answers to understand the underlying requirement or principle.

For more detail on question formats, pass marks and resits, read the guide to Part-66 exam rules. Candidates seeking a broader revision plan can also follow the ultimate Part-66 exam guide.

Is EASA Part-66 Study Material Useful for UK CAA Examinations?

EASA Part-66 textbooks, revision notes and practice questions may be useful preparation where the material aligns with the current UK CAA syllabus. The EASA Part-66 Aircraft Maintenance Licence information provides useful context, but it should not replace current UK CAA guidance.

The UK Part-66 framework retains much of the established Part-66 structure, including the 17-module format, licence categories and the standard 75% pass mark for basic knowledge examinations.

However, study material and licence jurisdiction are not interchangeable. A UK CAA licence is issued under UK requirements and must be applied for through the UK CAA process. Always check the current UK CAA requirements and syllabus, particularly for aviation legislation and any areas that may have changed since the material was published.

What Happens on Examination Day?

Arrive early, bring the required identification and follow the invigilator's instructions. Part-66 examinations are regulated assessments and are conducted under controlled conditions.

1. Identity check. Your photographic identification is checked against the booking details.
2. Examination instructions. The invigilator explains the rules, timing, permitted materials and process for requesting assistance.
3. Secure examination conditions. Notes, phones, smart devices and other personal items are normally restricted. Do not use a calculator, reference material or electronic device unless the provider has explicitly confirmed that it is permitted.
4. The examination. Depending on the module and knowledge level, the assessment may include multiple-choice questions, essay questions or both.
5. Completion and submission. Follow the submission process carefully and leave all examination material as instructed.

What Is the Part-66 Pass Mark?

The standard pass mark for UK CAA Part-66 basic knowledge examinations is 75%.

Where a module includes both multiple-choice and essay components, candidates may need to meet the required standard in each applicable section rather than achieve a combined average. Confirm the assessment format and pass requirements with the approved training organisation for the module you are sitting.

After the Examination: Results, Certificates and Resits

After marking and quality assurance, the training provider will issue your result in accordance with its approved procedures.

If you pass, retain the evidence of your result, commonly a Certificate of Recognition or approved examination record. Keep the original documents securely and maintain digital copies where possible. You will need reliable evidence of your examination history for a future licence application.

If you do not pass, review the provider's resit policy and use any available feedback to identify the areas that need further study. Part-66 requirements place limits on examination attempts and intervals between retakes. Your Part-147 provider can explain the applicable requirements and help you schedule a compliant resit.

Passing Examinations Is Not the Same as Holding a Licence

Passing Part-66 modules is an important milestone, but it is only one part of becoming a UK CAA licensed aircraft maintenance engineer. You must also meet the applicable requirements for:

• Practical maintenance experience.
• The relevant licence category.
• Basic training, where applicable.
• Licence application documentation.
• Aircraft type training and workplace authorisations required later in your career.

The module examinations demonstrate the required basic knowledge. Practical experience demonstrates that you can apply that knowledge safely in an operational maintenance environment. Maintaining accurate records is essential, so review the CAP 741 logbook guidance for B1 and B2 engineers.

Part-66 Examination Booking Checklist

• I know which UK CAA Part-66 licence category I am working towards.
• I have confirmed the modules and knowledge levels I need.
• I am booking through an appropriate approved training and examination provider.
• My name matches my photographic identification.
• I know the examination date, time, venue and permitted materials.
• I understand the pass mark and resit requirements.
• I have a realistic revision plan.
• I will retain every result and Certificate of Recognition securely.

Part-66 examinations require commitment and disciplined preparation. Confirm the correct module requirements, study the current syllabus, follow the provider's examination instructions and retain all supporting records.