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The Powerplant written test, explained

A plain-language guide to the FAA Aviation Mechanic Powerplant (AMP) knowledge test.

Format

Eligibility

You need an authorization to test: typically from a Part 147 school, or through documented experience on FAA Form 8610-2 (see the military and experience path). Confirm the current requirements with the FAA or your local FSDO.

Scheduling and what to bring

Tests are given at FAA-authorized testing centers run by PSI. Book through PSI, and bring a government photo ID and your test authorization. Check PSI and the FAA for the current list of accepted documents before your test day.

How to study

  1. Read the Aviation Mechanic Powerplant ACS so you know what each area covers.
  2. Work through FAA-H-8083-32B, one area at a time.
  3. Drill by area (topics) and track your weak spots.
  4. Take timed 100-question mocks. Aim well above 70% before you book.

See also: Powerplant pass rate and test volume.

Want the full kit?

355 original questions with handbook citations, 385 flashcards, 20 interactive diagrams and timed mocks scored by ACS area. $29 one-time, 14-day refund. The free sample covers reciprocating engines and ignition, with no account or card needed.

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FAQ

How many questions are on the Powerplant written test?

100 questions, with 2 hours allowed. A score of 70% passes.

Where do I take the test?

At an FAA-authorized knowledge testing center; the FAA's testing vendor is PSI. Check the FAA and PSI sites for current scheduling and eligibility rules.

What should I study from?

FAA-H-8083-32B (Powerplant handbook) and the Aviation Mechanic Powerplant ACS, which lists what the test covers.