How to Book UK CAA Part-66 Module Exams

CAA Part-66 exam booking is simple once you know the two routes: through a UK Part-147 organisation, or directly with the CAA through its online e-exam service. This guide walks through both, with the fees, venues, exam-day rules, results and review process as published on the CAA's pages in October 2026, and a short section on how EASA candidates book their exams.

Part-66 Prep is an independent study aid. We are not the CAA, EASA or a Part-147 organisation, and we cannot book exams for you. Booking processes, venues and fees change: always check the CAA's aircraft maintenance licence examinations page before you book. For the wider exam rules, see the Part-66 exams hub.

Two ways to sit UK Part-66 module exams

	Through a UK Part-147 organisation	Directly with the CAA
Who uses it	Students on the organisation's course; some organisations also accept external candidates	Self-study candidates, people working in industry, anyone not on a course
How to book	Through the organisation	CAA Customer Portal, e-exam service
Format	Set by the organisation within its approval	Computer-based e-exam at a CAA venue
Fee	Set by the organisation	£60 per attempt (as of October 2026)
Certificate	Certificate of recognition from the Part-147 organisation	Result recorded by the CAA

Both routes lead to exams that count towards a UK Part-66 licence. Exams from an EASA Part-147 organisation dated after 31 December 2022 are not accepted by the CAA, so if you want a UK licence, use a UK Part-147 or the CAA. The EASA vs UK CAA guide explains why the two systems separated.

How to book a CAA module exam, step by step

1. Register on the CAA Customer Portal. The CAA links to a registration page and a guide to the registration process from its exam page.
2. Request access to the e-exam service. This is the part of the portal used for AML exams.
3. Check the timetable. The CAA publishes an AML exam timetable with national and international dates. Pick a date that leaves time for revision and respects the 90-day resit rule if you have failed the module before.
4. Book the module and pay. As of October 2026 the fee is £60 per AML exam attempt (and £34 for a Part-66L exam).
5. Read your booking confirmation. It lists the exam subject, venue, start and finish times, and the materials permitted, prohibited and supplied for that exam.
6. Check your ID. Bring the same ID you registered with: a valid passport or a UK photo driving licence. If your ID changes, email a copy of the new one to the CAA's AML e-exams team at least 7 days before the exam; later requests are not accepted and you may be turned away.

The CAA also runs part-module exams for removing certain licence limitations (it lists limitations 1 and 9, 6, and 10 and 11, with others on request). Queries about exams go to the CAA's AML e-exams email address shown on the exam page.

Key fact: Book only when you are ready. Each fail costs a new £60 fee, a 90-day wait (30 days only after tailored Part-147 retraining) and one of your attempts. See the Part-66 resit rules.

CAA exam fees (as of October 2026)

Item	Fee	Source
AML module exam, per attempt	£60	CAA exam page and ORS5 scheme of charges
Part-66L exam	£34	CAA exam page
Full examination review	£169 on the CAA exam page; £177 in the ORS5 scheme of charges	conflicting; check at the time you request it
Exam credit extension	£183	CAA exam page and ORS5
Grant of a UK Part-66 licence, per category	£455	ORS5 No 446, from 1 April 2026

The full scheme is published as the CAA's personnel licensing scheme of charges. Total licence costs, including training and exam fees, are compared in the Part-66 licence cost guide.

CAA exam venues and dates

The venue list changes, so treat this as a snapshot from the CAA pages in October 2026:

• Gatwick: CAA headquarters, Aviation House, Crawley, with sessions through the year on the AML timetable.
• Approved venues: the CAA exam page names Bristol Ground School, Skyborne Gloucester, Rosyth Business Centre (Pathway Pilot Training) and Leading Edge Aviation Oxford.
• Overseas: the timetable lists international dates; one listing is at Sepang, Malaysia, but it is labelled for pilot (FCL) e-exams, so confirm with the CAA whether AML module exams are offered there.

Candidates must follow each venue's own policies, and arrive at least 30 minutes before the exam. Check the current timetable on the CAA's engineer licensing pages before booking travel.

Sitting UK exams abroad through a Part-147 organisation

UK Part-147 approvals are not limited to the UK. The CAA accepts certificates from UK Part-147 organisations located anywhere in the world, and several run UK module exams outside the UK, including in the Middle East and Asia. If you search for options such as UK CAA Part-66 exams in Dubai, check that the organisation holds a current UK Part-147 approval (a reference starting "UK.147") that covers your category and modules, not only an EASA or national approval. The CAA also refuses certificates from some organisations whose approvals were revoked, so check before you pay.

On exam day: what you can take into a CAA exam

Allowed	Supplied by the CAA	Prohibited
One clear plastic pen (biro type)	Rough working paper	Pencil cases
One eraser-tipped pencil	Essay answer paper, for essay modules only	Phones and all other electronic devices
A pencil sharpener		Watches
		Recording or communication equipment
		Any written notes, on paper or on your person

You are under exam conditions from the moment you enter the room. Where lockers exist, follow the invigilator's instructions; the CAA suggests leaving bags, coats, notes and devices in your car.

Exam tip: There is no calculator on the allowed list. Practise Module 1, 2 and 3 calculations by hand, and get used to pacing yourself without a watch of your own.

The paper itself

CAA exams are computer-based. Multiple-choice questions have three options, the pass mark is 75% and there is no negative marking. Essay modules under UK rules are Module 7 (two essays), Module 9 (one) and Module 10 (one), written on paper the CAA supplies. Each paper is sized to the UK Appendix II, so the UK paper for Module 10 for B1 is 40 questions plus one essay, not the 44 questions an EASA candidate sits. Practise at the right size: on Part-66 Prep, choose UK CAA rules on a paper's start screen, for example Module 10 paper 1 for B1.1.

Planning your exam calendar

CAA sessions are not daily, and some venues run only a handful of dates a year: the October 2026 timetable shows six 2026 dates at Rosyth, for example, against more frequent sessions at Gatwick. That affects how you plan, especially for resits.

1. Work backwards from your licence application. List the modules you still need and the date you expect to meet the experience requirement.
2. Map each module to a timetable date with enough revision time before it. Leave a buffer for a possible resit: the 90-day wait after a fail might land between sessions at your nearest venue.
3. Check the date of your oldest pass. Module passes count for 10 years before the application, so an early pass can expire if your plan slips.
4. Book early for popular dates. Seats at a venue are limited, and the confirmation is your only record of what is allowed in the room.
5. Keep records. Save every confirmation and result in one place. You will need them when you apply for your licence, and they help you fill in the written declaration of previous attempts that the rules require before each exam.

A sample timeline for one module: register on the portal and request e-exam access as soon as you start studying; sit your first full practice paper at the UK size about six to eight weeks before your target date; book once you are scoring well on practice papers; and use the final week for your weakest sub-modules rather than new material.

Results, comments and reviews

• Comments during the exam: you can leave a comment on a question you think is wrong. The CAA reviews every comment, but a comment is not a full review.
• Results: they appear on your results page in the e-exam portal. The CAA page does not give a fixed release time.
• Full review: request it from your results page within 14 calendar days of the exam. You pay the fee when you request it (£169 on the CAA exam page as of October 2026), and it is fully refunded if an error is found and your marks are adjusted. The CAA aims to complete a review within 10 working days and posts the outcome in the portal's messages area.
• Resitting during a review: the CAA advises against rebooking until the review outcome is known. If you resit and the review upgrades your first result to a pass, the second result is voided.
• Duplicates and verification: the CAA has separate pages for requesting a duplicate copy of results and for verifying CAA exam results.

Booking through a Part-147 organisation

If you are on a Part-147 course, your organisation books your exams as part of the course, usually at the end of each module's training. Your passes are recorded on certificates of recognition, which you keep for the licence application.

If you are not on a course, some Part-147 organisations sell exam seats to external candidates. Fees, dates and booking methods are their own: for example, one UK Part-147 college publishes a fee of £65 including VAT per exam for non-registered candidates and asks for bookings at least five working days ahead (October 2026). Ask about:

1. Whether the organisation's approval covers your module and category.
2. Whether it runs UK exams, EASA exams or both (dual-approved organisations exist).
3. What it allows into the exam room, which may differ from the CAA's rules.
4. How and when you receive your certificate of recognition.

How EASA candidates book exams

For an EASA licence, you sit exams either at an EU Part-147 approved maintenance training organisation with an examination approval or with the competent authority of an EASA member state, where that authority runs exams. There is no single EU booking portal: each authority and organisation has its own process, fees and venues. Start with the authority of the country where you will apply for your licence, and read the EASA Part-66 FAQs for the rules that apply across the EU. EASA papers follow Regulation (EU) 2023/989, so the paper sizes and essay rules differ from the UK.

Before you book: a readiness check

The study guides set out the UK rules in note form: read the free UK CAA exam guide for paper sizes, essays and retake rules in one place. If you are preparing without a course, the self-study guide shows how to plan modules and decide when you are ready. Our rule of thumb, used in the app, is 85% or more on three different full papers at the UK size. Pro on the pricing page unlocks ten papers per module for that check; there is no pass guarantee.

Your study plan

1. Take the free B1.1 diagnostic, or the one for your category, to choose your first module.
2. Register on the CAA Customer Portal and request e-exam access early, so it is ready when you are.
3. Sit the free paper 1 for your module on UK CAA rules, such as Module 10 paper 1, without a calculator.
4. Revise the weak sub-modules and sit further papers until you reach 85% on three of them.
5. Book a date from the CAA timetable, check your confirmation and ID, and arrive 30 minutes early.