PART-66 EXAM PREP · HOW THE OPTIONS COMPARE
Part-66 exam prep compared: courses, books, question banks and Prep66
There are four common ways to prepare for the Part-66 basic knowledge exams: an approved Part-147 course, study books on your own, an online question bank, and a revision platform such as Prep66 that puts the questions, the reading and the mock exams in one place. The best one depends on what you need from it. Only a Part-147 basic training course cuts the B1.1 experience requirement from five years to two, and only a Part-147 organisation or the competent authority can examine you. If you are studying around work, what matters most is practice in the exam’s own format, against your own authority’s syllabus, with every answer explained and a timed mock before you book. We make Prep66, so we are not neutral: the checklist below is the one we would judge any option by, ours included.
Checked against the current regulations on 23 September 2026. Sources: Regulation (EU) No 1321/2014, consolidated (EUR-Lex) · UK assimilated Regulation 1321/2014 (legislation.gov.uk) · UK Part-66 licensing (UK CAA).
What should you look for in Part-66 exam prep?
Your own authority’s syllabus, in its current text
EASA rewrote Part-66 in 2024 and again in 2026 and the UK adopted neither, so the two syllabuses now differ across nine modules. Check which authority and which text any material was written to.
The exam’s own format
Every Part-66 question has three answers, one of them correct, and the pass mark is 75% on every module. Practice in any other shape trains you for a different exam.
An explanation behind every answer
A mark tells you that you were wrong. An explanation tells you why the right answer is right, so you can see what you were missing.
Every module, every topic, at the right depth
Appendix I gives each topic a knowledge level of 1, 2 or 3. Good material follows those levels, so your time goes where the paper asks for depth.
Recall as well as recognition
Picking the right answer out of three is easier than producing it. Look for practice that makes you type or write an answer from memory as well.
Timed mocks from questions you have not practised
A full paper at the real time, drawn from questions you have not already seen, is the closest rehearsal there is for the exam room.
A measure of readiness
Something that reads your results against the 75% pass mark, topic by topic, so you book when the numbers say so.
A record of what you got wrong
The questions you missed are the most useful ones you have, so you should be able to find them again.
Honesty about what it is not
Only a Part-147 organisation or the competent authority can examine you, and only Part-147 retraining can shorten a resit wait. Nobody can guarantee a pass.
A price you can walk away from
Know what it costs, what it covers and how you leave.
How do the ways to prepare compare?
An approved Part-147 course
Training from a maintenance training organisation approved under Part-147, which can also examine you. An approved basic training course is the only thing that cuts the B1.1 experience requirement to two years, and Part-147 retraining aimed at the subjects you failed is the only way to shorten the wait after a failed module. Each organisation sets its own fees. Prep66 is not a Part-147 organisation and does not replace one.
Study books on your own
Books give you the syllabus in depth and at your own pace. What a book cannot do is test you, keep a record of what you got wrong, or tell you when you are ready. Check which authority’s syllabus a book follows and which text it was written to.
A question bank on its own
A bank lets you practise the exam’s format, which reading alone never does. Check that every answer is explained, that it says which authority and which text it follows, and be wary of any bank that claims to hold the real exam questions. Picking the right answer out of three is not the same as knowing it, so a bank on its own leaves recall to you.
Prep66
An online revision platform that puts those together for the 13 modules of category B1.1: 25,534 questions with a written explanation behind every answer, Fill-in-the-Gaps and Blurting for recall, a study book and a revision guide for every module, 39 timed mock exams built from questions held back from practice, a readiness score, a mistakes review and three timed revision games, written to both the EASA and the UK CAA syllabuses. It is not a Part-147 course, it does not cover the essay parts of the papers, and it is a monthly subscription: One Module at £9.99, $12.99 or €11.99 a month, or All Modules at £19.99, $26.99 or €23.99 a month. From 1 November 2026 the prices rise, and a subscription started before then keeps the price it started on.
How does Prep66 measure up against that checklist?
- Your own authority’s syllabus
- Written to both the EASA and the UK CAA syllabuses, with every place they differ marked in the revision guides. The module pages on this site set out both syllabuses in full.
- The exam’s own format
- Every question has three options with one correct answer, and question weighting and knowledge levels follow the Appendix I and II structure.
- An explanation behind every answer
- Every question has a written explanation, and every gap shows the completed sentence and where in the book it comes from.
- Every module, every topic
- All 13 B1.1 modules, with a study book and a revision guide for each.
- Recall as well as recognition
- Fill-in-the-Gaps asks you to type the answer, and Blurting asks you to write a whole guide item from memory. Three timed games, True or False, Find the False Statement and Match Pairs, put the module’s facts against a clock.
- Timed mocks
- Three timed mocks per module, 39 in all, from questions held back from practice until you have sat them.
- A measure of readiness
- A readiness score for every module, read against the 75% pass mark, with every answer counted toward its topic.
- A record of what you got wrong
- A mistakes review for every module, covering practice, gaps and mocks, grouped by topic and ticked off as you learn them.
- Honesty about what it is not
- Independent and not a Part-147 organisation: it runs no exams, cannot shorten a resit wait and guarantees nothing, and the essay parts of the papers are not covered.
- A price you can walk away from
- One Module at £9.99, $12.99 or €11.99 a month, All Modules at £19.99, $26.99 or €23.99 a month. From 1 November 2026 the prices rise, and a subscription started before then keeps the price it started on. Sign up without a card, and cancel any time from your account.
See everything Prep66 includesThe True or False quizThe Find the False Statement gameThe Match Pairs game
Can you combine a course, books and Prep66?
Yes, and they are not either or. On a Part-147 course, Prep66 is somewhere to practise the papers and sit timed mocks between lessons. If you study from books, it adds the testing a book cannot do. And if you are preparing on your own, it has the reading as well as the questions, so everything is in one place.
Choosing how to prepare
Q.01What is the best Part-66 question bank?
The one written to your own authority’s current syllabus, in the three option format, with an explanation behind every answer and timed mocks drawn from questions you have not practised. We think Prep66 meets that standard across all 13 B1.1 modules, with 25,534 questions for both EASA and the UK CAA, but we make it, so judge it against the checklist on this page rather than on our word.
Q.02How much does Part-66 exam preparation cost?
It depends on the route. Part-147 organisations set their own fees for training and exams. Prep66 costs £9.99, $12.99 or €11.99 a month for One Module, or £19.99, $26.99 or €23.99 a month for All Modules, and you can cancel any time. From 1 November 2026 the prices rise, and a subscription started before then keeps the price it started on. The fees the UK CAA publishes for the exams it runs and for the licence itself are set out in the Part-66 guide.
NO CARD TO SIGN UP · ONE MODULE OR ALL 13
Judge it against the checklist yourself.
The checklist above is the one to hold us to. Sign up without a card and look round every module first. When you are ready to study, One Module opens everything on the paper you are sitting next, and All Modules opens all thirteen.
See everything Prep66 includesThe True or False quizThe Find the False Statement gameThe Match Pairs game
Start preparing