FAA AMT Powerplant (AMP) Exam Prep
The FAA Aviation Maintenance Technician Powerplant knowledge test (AMP) has 100 questions with three answer choices each, 2 hours and a 70% passing score; 63.04% of 17,572 attempts passed in 2025. This guide covers what it tests, how to study, a week-by-week plan.
The exam at a glance
| Test code | AMP[1] |
|---|---|
| Scored questions | 100[1] |
| Time allowed | 2 hours (120 minutes)[1] |
| Passing score | 70%[1] |
| Answer choices | 3 per question (A, B, C)[2] |
| Test fee | $175 plus tax per attempt (PSI voucher price)[3] |
| To take the test | An authorization document: FAA Form 8610-2, a Part 147 school graduation document, or a military Certificate of Eligibility.[1] |
| If you fail | Wait 30 days, or retest sooner with a signed statement from a certificate holder certifying additional instruction in each failed subject (14 CFR 65.19).[4] |
| Figures booklet | FAA-CT-8080-4G[5] |
| Standard | FAA-S-ACS-1[6] |
| 2025 pass rate | 63.04% of 17,572 attempts (average score 72.58%)[7] |
- [1] FAA Airman Knowledge Testing Matrix (revised Sep 25, 2026)
- [2] FAA airman knowledge test sample questions (Aug 2021)
- [3] PSI: FAA testing programs ($175 per knowledge test voucher)
- [4] 14 CFR 65.19: Retesting after failure
- [5] FAA airman knowledge testing supplements
- [6] FAA Airman Certification Standards
- [7] FAA CY2025 Airman Knowledge Test Volume Report
About the AMP exam
The FAA AMT Powerplant exam tests knowledge of aircraft engine maintenance for both reciprocating and turbine powerplants. Covers engine theory, fuel systems, ignition, propellers, and troubleshooting procedures essential for A&P certification.
Before you book: AMT General exam, 18 months powerplant experience or Part 147 graduation
Topics Covered
Expert Study Tips
Know the four-stroke cycle and turbine engine stages cold
Study ignition timing and magneto operation in detail
Master turbine engine sections: inlet, compressor, combustion, turbine, exhaust
Understand propeller governor operation and constant-speed prop theory
Focus on engine instrument indications and what abnormal readings mean
Review fire detection and extinguishing system types
Suggested Study Timeline
Weeks 1-3
Systematic study of all exam topics, take notes and create summaries
Weeks 4-6
Deep dive into complex topics, work through practice problems
Weeks 7-9
Full practice exams, identify and address knowledge gaps
Weeks 10-11
Targeted review of weak areas, practice under timed conditions
Week 12
Final review and exam day
Recommended Resources
- FAA Aviation Maintenance Technician Handbook — Powerplant (FAA-H-8083-32A)
- AC 43.13-1B — Acceptable Methods, Techniques, and Practices
- 14 CFR Part 33 — Airworthiness Standards: Aircraft Engines
More practice by subject
FAA AMT Powerplant (AMP): FAQ
How many questions are on the FAA AMT Powerplant (AMP) exam?
100 questions, 2 hours (120 minutes) and 70% to pass, with three answer choices per question (FAA Airman Knowledge Testing Matrix).
What is the AMP pass rate?
63.04% of 17,572 attempts passed in 2025, with an average score of 72.58% (FAA CY2025 Airman Knowledge Test Volume Report).
What do I need to take the AMP test?
An authorization document: FAA Form 8610-2, a Part 147 school graduation document, or a military Certificate of Eligibility.
What happens if I fail the AMP test?
Wait 30 days, or retest sooner with a signed statement from a certificate holder certifying additional instruction in each failed subject (14 CFR 65.19).
How much does the FAA AMT Powerplant (AMP) exam cost?
PSI sells FAA knowledge test vouchers at $175 plus tax per attempt; the FAA quotes about $175 for the Part 107 test. Study materials and training are extra.
Ready to start studying?
Browse the question banks
Written and reviewed by Renzo Madueño
Former Airbus A320 First Officer (Avianca), FAA commercial pilot · Founder, Rotate Pilot
Exam formats, fees and pass rates on this page come from the authority's published sources where a source is linked; the study advice comes from preparing for these tests and flying the line. Rules and formats change, so if something here is out of date, tell us and we fix it.
Last reviewed . Rotate Pilot is independent and not affiliated with the FAA, PSI or any aviation authority.