GCAA CAR-66 Category A Exam

The GCAA sets the question count and time allowed for each module and publishes them in its current examination documentation. Because these details are revised from time to time, check the GCAA website or contact the authority directly rather than relying on figures quoted in forums or training-provider marketing.

Pass marks are set by the GCAA and stated in its current CAR-66 examination requirements. Do not assume a percentage carried over from another authority's system, such as EASA Part-66. Confirm the current pass standard with the GCAA before you book, and aim comfortably above it in practice tests.

The basic knowledge examinations are structured as multiple-choice papers, typically with several options per question and one correct answer. Some modules include calculation questions that require working through numbers, so practise without a calculator if the rules for your sitting restrict its use.

It is broad rather than deep. The individual questions are usually straightforward, but you must cover eleven modules, and the volume of material catches people out. Candidates with hands-on maintenance experience find systems and practices easier; those without it need to invest more time in those modules.

Retakes are permitted, but the number of attempts, any waiting period between them and the validity of a pass are governed by GCAA rules. Ask the authority or your approved training organisation for the current policy before sitting, and plan your study so you do not depend on a quick retake.

Validity periods for examination credits are defined in the CAR-66 requirements and can change. Confirm the current rule with the GCAA, and keep your own record of pass dates so you know when a module needs to be re-sat rather than discovering it during a licence application.

Start with mathematics, physics and electrical fundamentals, since later modules lean on them. Then take materials and hardware, maintenance practices, and aircraft systems together so the theory connects to hardware. Leave human factors and aviation legislation until last; they are largely recall-based and are best studied close to the exam date.

Underestimating aviation legislation and human factors because they seem easy, and neglecting numerical practice in the early modules. Another common mistake is memorising answers from question banks instead of understanding the learning objectives, which fails as soon as a question is worded differently from the practice set.

The examinations test knowledge, but the Category A licence itself also requires relevant maintenance experience, and the GCAA defines what counts. Check the current experience requirements early, because arranging documented experience takes longer than passing the modules and is a common cause of delay.

The GCAA website publishes the current CAR-66 requirements, examination arrangements and application process. Training organisations approved for CAR-66 courses can also confirm module schedules. Always treat the authority's published material as the definitive source over third-party summaries.