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A&P Mechanic Powerplant practice test and AI study plan
Prepare for the FAA Aviation Mechanic – Powerplant (AMP) knowledge test. Track every topic on the test, master each one with an AI tutor that cites the FAA handbooks, and take timed mock exams weighted like the real thing.
- Questions
- 100
- Time allowed
- 2 hours
- Passing score
- 70%
- ACS topics
- 163
How it works
What’s on the AMP test
Questions come from the knowledge and risk management elements of the Aviation Mechanic - General, Airframe, and Powerplant ACS. Our mock exams spread the 100 questions across its areas in proportion to how many topics each has; the FAA does not publish its exact weighting.
| Area of operation | Topics | Mock exam questions |
|---|---|---|
| III. Powerplant | 163 | 100 |
Taking the AMP knowledge test
What you need before, during, and after the FAA Aviation Mechanic – Powerplant test. Requirements change, so confirm with the sources below before you schedule.
Before the test
- Minimum age
- There is no minimum age to take the AMP test.
- Authorization
- Bring one of: an original FAA Form 8610-2 signed by an FAA inspector (for experience-based applicants), a graduation document from an FAA-certificated aviation maintenance technician school (Part 147), proof you completed the school's General curriculum (General test only), or a military Certificate of Eligibility.
- Registration
- Get an FAA Tracking Number (FTN) by creating a profile in IACRA, then schedule with PSI, the FAA's testing vendor, online or by phone at 844-704-1487. Cancel or reschedule at least 24 hours ahead, and arrive about 15 minutes early.
- Cost
- PSI charges $175 per knowledge test, plus tax where it applies.
On test day
- Format
- 100 multiple-choice questions in 2 hours (120 minutes). You need 70% to pass.
- Bring
- A current government-issued photo ID that shows your date of birth, signature, and physical residential address (a P.O. box doesn't count). Applicants under 18 without an acceptable ID need a parent or guardian to attest to their identity.
- Provided
- The test center provides the testing supplement, scratch paper, and a pen, and the test software has a built-in calculator. You may bring an E6B, plotter, or a basic or aviation calculator if you clear its memory in front of the proctor, though the center can refuse any personal calculator.
After the test
- Results
- You get your printed Airman Knowledge Test Report (AKTR) at the test center as soon as you finish. It shows your score and a code for each knowledge area you missed.
- Validity
- You must pass all the required mechanic tests (written, oral and practical) within 24 months.
- If you fail
- Wait 30 days before retesting, or retest sooner with a signed statement from someone who holds the certificate and rating you're seeking, certifying they gave you additional instruction in each subject you failed.
- Higher score
- You can retake a passed test to improve your score after 30 days; the most recent score is the one that counts.
- Next step
- Pass the oral and practical tests with a designated mechanic examiner. You must be 18 to hold a mechanic certificate.
Sources: 14 CFR 65.19 · 14 CFR 65.71 · 14 CFR 65.75 · FAA Airman Knowledge Testing Matrix · FAA airman testing · PSI FAA testing programs · FAA Order 8080.6H. Checked October 2026.
Online ground school courses for the AMP test
A course teaches the material; KTR Helper helps you master it and track what’s left. Here are the options we know of. Listings marked Sponsored are paid placements and appear first; the rest are shown in a rotating random order.
- A&P Test Prep King Schoolstest prep app, works offline
Separate General, Airframe, and Powerplant test-prep apps with question review and practice exams, for people who already have their maintenance training.
- AMT Test Prep Online Set Gleim Aviationtest prep
Customizable quizzes from previously released FAA questions in an exam-style interface, with performance tracking, for all three AMT tests.
- Prepware Online ASAtest prep
Cloud-based question bank with study sessions and practice tests for one chosen FAA knowledge test, with 24 months of access.
- AMT Online Maintenance School and Test Prep Set Gleim Aviationvideo course + test prep
Three online maintenance school modules with video presentations plus matching test prep for General, Airframe, and Powerplant, with 24 months of access.
- Cleared for Aviation Maintenance King Schoolsvideo course + test prep
68.5 hours of video knowledge lessons with FAA-style questions and unlimited practice exams, plus practical tasks done under an A&P's direction.
- GroundSchool - Aviation Mechanic (A&P) Dauntless Aviationtest prep app, works offline
FAA-style questions with explanations and unlimited practice tests for each of the three mechanic tests, available offline.
Frequently asked questions
How many questions are on the A&P Mechanic Powerplant knowledge test?
+
The FAA Aviation Mechanic – Powerplant (AMP) knowledge test has 100 multiple-choice questions, 2 hours (120 minutes) to answer them, and a passing score of 70%.
What does the A&P Mechanic Powerplant test cover?
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Questions come from the knowledge and risk management elements of the Aviation Mechanic - General, Airframe, and Powerplant Airman Certification Standards: Powerplant.
How old do you have to be to take the A&P Mechanic Powerplant test?
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There is no minimum age to take the AMP test.
Do I need an endorsement to take the AMP test?
+
Bring one of: an original FAA Form 8610-2 signed by an FAA inspector (for experience-based applicants), a graduation document from an FAA-certificated aviation maintenance technician school (Part 147), proof you completed the school's General curriculum (General test only), or a military Certificate of Eligibility.
How much does the A&P Mechanic Powerplant knowledge test cost?
+
PSI charges $175 per knowledge test, plus tax where it applies. You schedule through PSI after getting an FAA Tracking Number (FTN) in IACRA.
How long are AMP test results valid?
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You must pass all the required mechanic tests (written, oral and practical) within 24 months.
What happens if I fail the AMP test?
+
Wait 30 days before retesting, or retest sooner with a signed statement from someone who holds the certificate and rating you're seeking, certifying they gave you additional instruction in each subject you failed.
How should I study for the A&P Mechanic Powerplant test?
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Take a ground school course to learn the material, then use KTR Helper to track all 163 ACS topics, master each one with the AI tutor and practice questions, and take timed mock exams. After the test, add your knowledge test report and the codes you missed move to the top of your plan for the checkride.
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