How Hard Is the AME CARs Exam? Pass Rates, Timeline & Strategies
The Transport Canada CARs (Canadian Aviation Regulations) exam is widely considered one of the most challenging components of the AME licensing process. With a 70% pass mark and a mandatory 6-month wait before retakes, understanding what you are up against — and how to prepare — can make the difference between passing on your first attempt and a costly setback.
Sky Licence Team
AME exam preparation specialists — helping engineers earn their Transport Canada license since 2025
What Makes the CARs Exam So Challenging?
The CARs exam is not like the other AME written exams. While the Airframe, Powerplant, Electrical, and Standards exams test technical and mechanical knowledge — subjects many candidates study in college or encounter daily on the job — the CARs exam is purely regulatory. It demands precise recall of specific CARs references, exact wording from the regulations, and the ability to apply complex rules to real-world maintenance scenarios.
Administered as part of Transport Canada's TP14038E syllabus, the CARs exam consists of 50 multiple-choice questions with a 90-minute time limit. To pass, you must score at least 70% — meaning no more than 15 incorrect answers across the entire test. The exam covers CAR Parts I (General Provisions), II (Aircraft Identification and Registration), V (Airworthiness), and VI (Maintenance and Manufacturing), with heavy emphasis on the maintenance-specific sections of Part V and Part VI.
What makes this exam particularly difficult is the level of detail required. You are expected to know specific section numbers, regulatory time limits (such as the 30-day requirement for certain inspections), and the precise conditions under which a maintenance release can be signed. This is not a test of general aviation knowledge — it is a test of regulatory precision.
Official Pass Rates: What the Data Shows
Transport Canada does not publish official pass rates for individual AME exams, but anecdotal evidence from training providers, college programs, and industry forums suggests that the CARs exam has one of the lowest first-attempt pass rates among all five AME written exams — estimated by many sources at between 55% and 65%. This means that roughly one in three to one in two candidates do not pass on their first try.
By comparison, the Airframe and Powerplant exams tend to have higher first-attempt pass rates, often reported in the 70–80% range, because candidates encounter that material more regularly in their practical training. The CARs exam's abstract, text-heavy content is less intuitive and requires dedicated memorization and application practice.
It is important to note that these figures are estimates based on industry sources rather than official Transport Canada statistics. However, the consistent pattern across multiple data points confirms that the CARs exam is objectively harder than its technical counterparts — and deserves proportionally more study time.
The 70% Pass Mark: Why It Matters
The 70% pass mark for all Transport Canada AME exams means that out of 50 questions, you need at least 35 correct answers. While 70% may sound achievable, the reality is that each question has four answer choices, and the distractors are carefully designed to test nuanced understanding rather than surface-level recall.
Common question formats include:
- Direct regulatory recall — "Under CAR 571.02, who is responsible for ensuring that maintenance is performed in accordance with approved data?"
- Scenario-based application — "An aircraft undergoes a 100-hour inspection. The AME discovers a crack in a wing spar. What CAR reference applies to the repair approval process?"
- Time-limit questions — "Within how many days must a maintenance release be completed after maintenance is finished?"
- Definition questions — "According to CAR 101, what is the definition of a 'major repair'?"
The challenge is that many answer choices are technically correct in a general sense but inaccurate according to the specific CAR reference. This requires you to know the regulations well enough to distinguish between nearly identical statements — a skill that only develops through repeated practice with real exam-style questions.
The 6-Month Retake Rule: High Stakes, High Pressure
One of the most stressful aspects of the CARs exam is Transport Canada's retake policy. If you fail any AME written exam, you must wait six months before you can retake it. There are no exceptions or expedited retake options. This rule exists to ensure that candidates take the time to genuinely improve their knowledge rather than simply retesting immediately in hopes of a lucky draw.
The practical impact of this rule is significant. A failed CARs exam can delay your entire licensing timeline by half a year. For apprentices who are close to completing their 48-month experience requirement, this can mean waiting months to finish the written examination phase before they can proceed to the oral and practical exam.
This high-stakes environment is why thorough preparation is not just recommended — it is essential. Treating the CARs exam as something you will "give a try and see how it goes" is a strategy that has cost many candidates months of career momentum. The best approach is to prepare until you are consistently scoring 80% or higher on practice exams before booking your official test date.
Proven Study Strategies for the CARs Exam
Based on feedback from hundreds of successful AME candidates, the following strategies consistently produce the best results for the CARs exam:
1. Read the Actual CARs Text — Not Summaries
Many candidates make the mistake of studying only summarized or paraphrased versions of the regulations. While study guides can be helpful for initial orientation, they inevitably omit nuance. Transport Canada designs exam questions based on the exact wording of the CARs. Candidates who read the official regulation text — available for free on Transport Canada's website — develop a much sharper ability to distinguish between similar answer choices.
Focus specifically on CAR Parts I, II, V, and VI. Read each section that is listed in the TP14038E syllabus, and make notes on key definitions, time limits, and procedural requirements. Pay special attention to sections that contain numbers, dates, or conditional language ("may," "shall," "must").
2. Use Active Recall with Practice Questions
Passive reading is one of the least effective study methods for regulatory exams. Active recall — testing yourself repeatedly on the material — has been shown by cognitive science research to dramatically improve long-term retention. This is especially important for the CARs exam, where the ability to recall specific references under time pressure is critical.
Platforms like Sky Licence use adaptive algorithms that generate practice questions calibrated to the TP14038E syllabus, track your performance across every topic domain, and automatically focus on your weakest areas. This targeted approach is far more efficient than working through a static question bank in order.
3. Create a CARs Reference Sheet
Build a personal reference document organized by CAR Part and section. For each section, write down the key requirement in plain English, the exact CAR reference number, and any associated time limits or numerical values. The act of writing this document — even if you never look at it again after creating it — forces your brain to process and organize the information in a way that passive reading does not.
4. Simulate Exam Conditions
Before your official exam, take at least three full-length practice tests under timed conditions (50 questions, 90 minutes). Sit in a quiet room, eliminate all distractions, and do not pause or look up answers during the test. This builds the mental stamina and time-management skills you will need on exam day. Review every incorrect answer in detail afterward — understanding why you got a question wrong is more valuable than getting it right by luck.
5. Allocate at Least 4–6 Weeks of Dedicated Study
The CARs exam is not something you can cram for in a weekend. Most successful candidates report studying for 4 to 6 weeks, dedicating 5–10 hours per week to CARs-specific review. Spread your study sessions across multiple days rather than doing marathon sessions — spaced repetition is scientifically proven to improve retention for regulatory material.
How Sky Licence Prepares You for the CARs Exam
Sky Licence was built specifically to address the unique challenges of the Transport Canada CARs exam. Our platform offers:
- CARs-specific question banks — Hundreds of exam-style questions organized by CAR Part and section, directly aligned with the TP14038E syllabus.
- Adaptive difficulty — The AI identifies your weak areas and generates more questions in those domains until you reach mastery.
- Detailed explanations — Every question includes a full explanation with the exact CAR reference, so you learn the regulation behind the answer.
- Timed practice exams — Full 50-question simulations that replicate the real exam environment, complete with a 90-minute timer.
- Progress analytics — Track your scores by CAR Part and see exactly which sections need more work before test day.