Part 66 Module Exams: What They Are, What They Are Not
If you are searching for Part 66 module exams, the usual problem is not booking the exam.
The usual problem is not knowing whether the exam you think you need is actually the exam you need.
At Sigma Aerospace College, we do not treat Part 66 exams as a retail booking desk for engineers guessing their own pathway. We review the outcome first. That is deliberate. A full licence, a modular licence, an exclusion removal, a requalification path, and a foreign conversion case do not all use the same exam set.
Exams are part of the pathway, not the whole pathway
Part 66 exams matter.
They are the formal basic knowledge examinations tied to CASA’s licensing framework: they’re a sampling assessment designed to further confirm an individual’s knowledge before they get licensed. But they do not replace the rest of the licensing system. They sit alongside the relevant MEA units, the practical evidence, and the maintenance experience required for the outcome.
This is where a lot of engineers lose time. They treat the module list as though it is the licence plan. It is not. The licence plan is the full combination of outcome, units, exams and experience.
Why you cannot just book “the one exam I need”
Different outcomes use different exam sets.
That is the first point. A full B-category licence course is not the same as a modular licence pathway. An exclusion removal is not the same as an initial category course. A foreign licence bridging case is not the same as either of those. Until someone checks the actual target outcome, nobody can say with confidence that one exam is really the only gap.
The second point is prior credit. Previous MTO exams, some older results, and in limited cases CAR 31 basics can change the answer. That is helpful when it is mapped properly. It is unhelpful when it is guessed.
CASA self-study and the Sigma pathway are not the same thing
CASA has a separate self-study pathway for Part 66 knowledge examinations.
That is one route. The Sigma route is different. As a CASA Part 147 Maintenance Training Organisation and ASQA-registered RTO, we map the broader outcome and enrol engineers into the exams that are actually relevant to that outcome.
That distinction matters even more for engineers dealing with exclusion removal or unit-of-competency gaps. In those cases, the issue is usually broader than one exam sitting.
Common mistakes engineers make with Part 66 exams
One common mistake is assuming a pass mark solves the whole problem.
It does not. The exam result addresses the examination requirement. It does not automatically prove the full AQF unit outcome.
Another common mistake is misunderstanding expiry rules. The well-known ten-year discussion applies to Part 66 module results in specific contexts. It does not apply the same way to older CAR 31 basics results. Those are different things and should not be treated as interchangeable.
A third mistake is chasing B1 or B2 module lists before the intended licence category, aircraft environment and training path have actually been confirmed.
How Sigma handles Part 66 exams
Our process is deliberately simple.
First, you apply for the actual outcome you are trying to achieve. That might be a full licence pathway, an exclusion removal, a foreign conversion path, or another mapped Part 66 outcome. Second, we review the background, including prior exams, units and evidence. Third, once the real gap is confirmed, we open the correct exam pathway.
That approach avoids the most common waste in this market: sitting the wrong exam set, or sitting the right exams at the wrong time.
The practical point
If you need Part 66 exams, start with the outcome, not the module list.
That is the faster way to reach the actual regulatory result. It also reduces rework, duplicated study and bad assumptions.
At Sigma Aerospace College, that is exactly how we handle it. Apply first. Review second. Exams third.
Further reading
- CASA Part 66 Exams
- Aircraft Engineer Licence (CASA)
- RPL for Aircraft Engineers
- Exclusion Removals (CASA Licence)
- What exactly is the “Ten Year Expiry” on my CASA Module Examinations?
- Do my CAR 31 Basics exams ever expire?
- Is it possible to sit CASA Basics exams anywhere?
- CASA licensing pathway overview
- CASA Part 66 licence page