The role of an AME (Aircraft Maintenance Engineer) is critical to the safety and efficiency of the aviation industry. AMEs are responsible for inspecting, maintaining, and repairing aircraft to ensure they are safe for flight. This guide provides a comprehensive overview of the steps to becoming an AME, including exam preparation, certification requirements, training, and insights into the profession. Practice with the free AME - Aircraft Maintenance Engineer practice test on PracticeTestGeeks (9 questions with answer explanations).
Numbers in brackets link to the official sources listed under Sources & last verified. Dates that have passed are removed automatically.
| Item | Detail | Source · Verified |
|---|---|---|
| Time limit | Up to 3 hours per exam[1] | Transport Canada Civil Aviation · Oct 21, 2026 |
| Passing score | 70% on each exam[2] | Transport Canada Civil Aviation · Oct 22, 2026 |
| Exam fee (Regulatory exam (M1/M2/E/S)) | C$100 per regulatory exam[1] | Transport Canada Civil Aviation · Oct 21, 2026 |
| Exam fee (Technical exams (Power Plant, Airframe, Standard Practices, Avionics, Structures) | C$50 per technical exam[1] | Transport Canada Civil Aviation · Oct 21, 2026 |
| Validity | 10 years from last birthday[3] | Transport Canada Civil Aviation · Oct 22, 2026 |
| Renewal | Recency: 6 months' maintenance work or regulatory exam within 24 months[3] | Transport Canada Civil Aviation · Oct 22, 2026 |
| Delivery | Booked and paid on TC's online booking site[2] | Transport Canada Civil Aviation · Oct 22, 2026 |
| Eligibility | Minimum age 21; any citizenship[2] | Transport Canada Civil Aviation · Oct 22, 2026 |
| Registration deadline | Exam approval valid 12 months[2] | Transport Canada Civil Aviation · Oct 22, 2026 |
According to Transport Canada Civil Aviation, “The passing grade for each examination is 70%.”[2]
The content areas below are copied from the official AME content outline published by Transport Canada Civil Aviation. The right-hand column shows which of our practice sets covers it.
| Official content area | Practice on this site |
|---|---|
| Airframe[4] | AME - Aircraft Maintenance Engineer Hydrau... Practise how hydraulic and pneumatic components behave, and how to reason from a symptom to the failed part. |
| Avionics[4] | AME - Aircraft Maintenance Engineer Digita... Practise the purpose of instrument, navigation and communication equipment and the logic of basic fault finding. |
| Powerplant[4] | AME - Aircraft Maintenance Engineer Gas Tu... Practise engine operating principles and component functions, then compare them with the reciprocating engine and propeller sets. |
| Regulations[4] | AME - Aircraft Maintenance Engineer Aviati... Practise who may certify what, which records are required, and how to find the governing rule rather than recalling it loosely. |
| Standard Practices[4] | AME - Aircraft Maintenance Engineer Mainte... Practise correct tooling, materials, hardware and inspection habits that apply across every aircraft type. |
| Structures[4] | AME - Aircraft Maintenance Engineer Aircra... Practise damage assessment, repair reasoning and the differences between metal and composite structures. |
Prepare for the AME - Aircraft Maintenance Engineer exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
These are practice questions written for this site, not questions from the real exam. Each explanation shows why the right answer is right and why the others are wrong.
Question: What is the primary function of a Constant Speed Drive (CSD) unit in an aircraft's AC electrical system?
Answer: A. To convert variable engine RPM into a constant generator RPM.
Explanation:
The correct answer is that a Constant Speed Drive converts variable engine speed into a constant generator speed. An AC generator's output frequency follows its shaft speed, and the engine speed changes with power setting. The CSD absorbs that variation so the frequency stays stable for the aircraft's AC loads.
Rectifying AC to DC is the job of a rectifier unit, not a drive. Regulating voltage is done by a voltage regulator or generator control unit, which adjusts excitation, not shaft speed. Acting as a circuit breaker is a protection function, handled by breakers and control units.
Rule to remember: speed control sets frequency, excitation control sets voltage, and protection devices open the circuit. Match the device to the quantity it controls.
Question: Which instrument is used to check the insulation resistance of aircraft wiring?
Answer: A. Megohmmeter (megger)
Explanation:
A megohmmeter, often called a megger, is the right instrument. It applies a high test voltage across the insulation and reads the very large resistance that results, in megohms. That shows whether insulation has degraded, even when the conductor itself still carries current normally.
An ammeter measures current flowing in a circuit, so it says nothing about leakage through insulation at rest. A frequency meter measures how often an AC signal cycles. A low-range ohmmeter uses a small test voltage and is suited to checking continuity and bonding, where the expected resistance is small, so it cannot reveal insulation weakness.
Rule to remember: low resistance checks use a low-range ohmmeter, while insulation checks need a high test voltage and a megger.
Question: What is the primary purpose of stop-drilling a crack in aluminum skin?
Answer: B. To relieve the stress concentration at the crack tip
Explanation:
Stop-drilling relieves the stress concentration at the crack tip. A sharp crack tip concentrates load into a very small area, so the crack keeps growing under vibration and flight loads. Drilling a smooth round hole at the end replaces that sharp point with a larger radius, which spreads the stress and slows or stops propagation.
Filling the crack with sealant only hides it and does nothing to the stress. The stop-drill hole is not meant as a rivet hole for a patch, although a repair may be designed around it later. Draining moisture is not its purpose, and the hole is not for drainage.
Rule to remember: sharp corners concentrate stress, and rounded features spread it.
Start with the official TCCA exam outline and note which subject areas apply to the rating you are pursuing. Then take one practice set per subject area without looking at answers, so you see your honest starting point. Record the topics you missed rather than the score alone.
Next, work through your weakest area first. For every wrong answer, read the explanation, then open the relevant official or manufacturer reference and find the same point in it. This step matters because the real exams draw on the source material, and our questions are written by us rather than taken from the exams.
Move to the related sets that overlap, for example the propeller and reciprocating engine sets alongside gas turbine theory, or the electrical set alongside digital avionics. Repeat any set after a gap, and aim to explain why each wrong option is wrong, not just to recognise the right one.
Close to your exam date, practise under timed conditions so the length of the sitting feels familiar, and keep your 12-month approval window in mind when booking. Leave the regulations set until late and revisit it often, because rules are easy to blur together.
Interactive AME - Aircraft Maintenance Engineer resources on PracticeTestGeeks, free to start:
The AME exam consists of written, practical, and oral components that assess theoretical knowledge and hands-on skills.
Candidates must meet educational and practical experience requirements to become licensed AMEs.
Certification as an Aircraft Maintenance Engineer opens doors to numerous job opportunities and increases earning potential.
Training programs are available to provide aspiring AMEs with the necessary knowledge and skills for a successful career.
Preparing for the AME exam is a crucial step in obtaining your certification and establishing a successful career in aviation maintenance. Understanding the structure of the exam and the necessary study materials is essential for success.
Written Examination: This part tests your theoretical knowledge of aviation maintenance, covering areas such as aerodynamics, aircraft systems, and regulatory requirements.
Practical Examination: Candidates must demonstrate their hands-on skills in real-world scenarios, showcasing their ability to perform maintenance and repairs on aircraft.
Oral Examination: This section assesses your understanding of various aviation concepts and regulations, requiring you to answer questions posed by examiners.
Review the AME Exam Syllabus: Familiarize yourself with the syllabus to understand the topics covered and allocate your study time accordingly.
Use Study Materials: Use textbooks, online resources, and practice exams to reinforce your knowledge and skills.
Join Study Groups: Collaborating with fellow candidates can enhance your understanding and provide support during the preparation process.
Becoming an Aircraft Maintenance Engineer involves a combination of education, training, and certification. Understanding the steps required can help simplify the process.
Meet Educational Requirements: Most candidates pursue a diploma or degree in aircraft maintenance engineering or a related field from an accredited institution.
Gain Practical Experience: Hands-on training is vital. Consider enrolling in a training program that offers practical experience in aircraft maintenance.
Obtain Certification: Candidates must pass the AME examination administered by the relevant aviation authority to become licensed.
Apply for a License: After successfully passing the exams, you can apply for your Aircraft Maintenance Engineer license, which is necessary to work legally in the field.
The Aircraft Maintenance Engineer certificate is a vital credential that allows individuals to work in the aviation industry legally. This certification signifies that an engineer has the necessary knowledge and skills to maintain aircraft safely.
Basic AME Certificate: This foundational certificate allows engineers to perform general maintenance tasks on aircraft.
Specialized AME Certificates: Engineers can pursue additional certifications in specific areas such as avionics, airframe, or powerplant systems to enhance their skills and job prospects.
Increased Job Opportunities: Certification opens doors to a wide range of job opportunities in the aviation sector, including commercial airlines, private jet companies, and military aviation.
Professional Credibility: Holding an AME certificate demonstrates your expertise and commitment to maintaining the highest safety standards in aviation.
Potential for Higher Earnings: Certified AMEs often have access to higher-paying positions and increased earning potential compared to non-certified individuals.
Training is a crucial aspect of preparing for a career as an Aircraft Maintenance Engineer. Various programs are available that combine theoretical knowledge with practical skills.
Diploma and Degree Programs: Many institutions offer diploma and degree programs in aircraft maintenance engineering. These programs typically include classroom instruction, laboratory work, and hands-on training.
FAA-Approved Programs: Candidates should look for programs that are approved by the Federal Aviation Administration (FAA) or the relevant aviation authority in their country.
On-the-Job Training: Some AMEs gain experience through apprenticeship programs, working under licensed professionals to acquire practical skills.
A Licensed Aircraft Maintenance Engineer (LAME) is a professional who has obtained the necessary certification to perform maintenance, repairs, and modifications on aircraft. The LAME designation is recognized worldwide and signifies a high level of expertise.
Conducting Inspections: LAMEs are responsible for inspecting aircraft to ensure they meet safety standards and regulatory requirements.
Performing Maintenance: They carry out routine maintenance tasks and repairs, ensuring that all systems are functioning correctly.
Keeping Records: Maintaining accurate records of inspections, repairs, and modifications is essential for regulatory compliance.
Starting on a career as an Aircraft Maintenance Engineer is an exciting opportunity for individuals passionate about aviation and mechanics. The journey involves completing the necessary education and training, obtaining certification, and preparing for the AME exam. By understanding the requirements and investing time in thorough preparation, aspiring AMEs can successfully navigate the path to their careers in aviation maintenance.
| Pros | Cons |
|---|---|
| AME exam preparation strengthens your knowledge across all domains | Exam anxiety can affect performance — practice tests help reduce it |
| Passing the exam proves competency to employers and clients | Registration fees are non-refundable if you miss your test date |
| Study materials and practice tests are widely available | Limited retake opportunities may apply with waiting periods |
| Exam-based credentials are portable across states and employers | Exam content updates periodically — use current study materials |
| Clear exam objectives help focus your study plan effectively | Testing center availability may require advance scheduling |
Try these questions from our free AME - Aircraft Maintenance Engineer practice tests. The correct answer and an explanation follow each question.
According to Canadian Aviation Regulations (CARs), what is the minimum age requirement for an individual to be issued an Aircraft Maintenance Engineer (AME) licence?
Answer: B. 21 years
CAR 566.03 outlines the requirements for the issuance of an AME Licence. Among these requirements, an applicant must have attained the age of 21 years prior to the licence being issued.
Who holds the ultimate responsibility for ensuring that all required maintenance has been carried out before an aircraft flight?
Answer: D. The aircraft owner or operator.
While the AME is responsible for the work they perform and certify, regulations across jurisdictions (including ICAO standards, EASA, FAA, and Transport Canada) place the final responsibility for the aircraft's airworthy condition on the owner or operator. They must ensure all required maintenance, including compliance with airworthiness directives, is completed before flight.
What role does an aircraft maintenance log play in inspection?
Answer: B. To track the history of maintenance and repairs
An aircraft maintenance log plays a crucial role in inspection by providing a comprehensive historical record of all maintenance and repairs performed on the aircraft. This log allows technicians to track component lifespans, identify recurring issues, and ensure that all scheduled maintenance has been completed. It is an essential document for regulatory compliance and ensuring the aircraft's ongoing airworthiness.
An AME is performing a functional test of a TCAS II system. The test set simulates a conflict that generates a 'Climb, Climb' aural alert and a corresponding visual command on the PFD. What type of advisory has been generated?
Answer: A. Resolution Advisory (RA)
TCAS II provides two levels of alerts. A Traffic Advisory (TA) simply alerts the crew to the presence of nearby traffic. A Resolution Advisory (RA) is a command that instructs the pilot to perform a specific vertical maneuver, such as 'Climb' or 'Descend', to avoid a collision.
Take the full AME - Aircraft Maintenance Engineer practice test
How we verify: editorial & fact-checking policy. Report an error: contact us.