United States · Mechanic certificate

How to become an A&P mechanic: the FAA certificate and its tests

An A&P mechanic holds the Federal Aviation Administration (FAA) Aviation Mechanic certificate with both an Airframe (A) and a Powerplant (P) rating. The FAA treats “aviation mechanic” and “aviation maintenance technician” (AMT) as the same thing. To qualify you graduate from an FAA-certificated school or show 18 months of experience for one rating, or 30 months for both. Then you pass three knowledge tests, each at 70%, and an oral and practical test with an examiner. You must pass them all within 24 months, and you must be 18 when the certificate is issued.

  • 3Knowledge tests for both ratings
  • 70%Passing score on each test
  • 24 monthsTo pass every test for the certificate

Key facts

At a glance

Issued by
The FAA, under Title 14 of the Code of Federal Regulations (14 CFR) part 65, subpart D
Ratings
Airframe, Powerplant or both on one certificate; you don’t have to get both
Ways to qualify
An FAA-certificated school, 18 or 30 months of practical experience, or military experience
Knowledge tests
General (60 questions), Airframe (100), Powerplant (100); 2 hours each, at PSI test centers
Oral and practical
With a Designated Mechanic Examiner (DME), after you pass your knowledge tests
Certificate
No FAA fee to issue it, and it doesn’t expire unless surrendered, suspended or revoked

How it works

How to get your A&P mechanic certificate, step by step

General
70%
Airframe
70%
Powerplant
70%
To pass you need at least 70% on the General test (AMG), at least 70% on the Airframe test (AMA), and at least 70% on the Powerplant test (AMP).
  1. Qualify first. You need an authenticated graduation document from an FAA-certificated Aviation Maintenance Technician School (AMTS), a military Certificate of Eligibility, or documented practical experience that an FAA inspector has accepted.
  2. If you qualify on experience, an Aviation Safety Inspector at a Flight Standards District Office (FSDO) checks your evidence and signs your FAA Form 8610-2, which is your authorization to test.
  3. Create a profile in the FAA’s Integrated Airman Certification and Rating Application (IACRA) to get your FAA Tracking Number (FTN), then book with PSI Services, the FAA’s testing vendor.
  4. Take the General (AMG) test, then the Airframe (AMA) test, the Powerplant (AMP) test or both, depending on the ratings you want. Each is multiple choice on a computer at a PSI test center.
  5. With passing test reports, book the oral and practical tests with a Designated Mechanic Examiner (DME). The oral part goes back over the subjects you missed on the knowledge tests.
  6. Pass everything and the examiner issues a temporary certificate while the FAA reviews your file and sends the permanent one.

Topics

What the A&P mechanic tests cover

These topics follow the three sections of the FAA’s mechanic Airman Certification Standards (ACS): General, Airframe and Powerplant. The same document sets the knowledge tests and the oral and practical tests.

01

Electricity, aircraft drawings and weight and balance

The first three General subjects in the mechanic Airman Certification Standards (ACS): how circuits work, how to read a drawing, and how to weigh an aircraft and find its center of gravity.

Key points (4)
  • Subject A lists Ohm’s, Kirchhoff’s, Watt’s, Faraday’s and Lenz’s laws among its knowledge elements (AM.I.A.K7).
  • The practical skills for Subject A include measuring voltage, current and resistance and troubleshooting a circuit.
  • Subject B covers using drawings to check that a repair or alteration conforms to the type design (AM.I.B.K2).
  • Subject C covers arm, moment, center of gravity (CG) and how adverse loading can put an aircraft out of limits.
02

Fluid lines, materials, ground operations and corrosion

The hands-on General subjects: tubing and hoses, hardware and metals, moving and fueling aircraft safely, and finding and treating corrosion.

Key points (4)
  • Subject D includes why a torque wrench matters when securing hose and line fittings (AM.I.D.K5).
  • Subject E covers heat treatment, the forces on materials and hardware such as bolts, nuts, pins and turnlock fasteners.
  • Subject F covers towing, fueling and defueling, and airport operations including runway incursion prevention.
  • Subject G covers corrosion theory, its types and effects, and preventive maintenance procedures.
03

Mathematics, regulations, physics, inspection and human factors

The General subjects behind every sign-off: the math and physics, the rules and records, the inspection tools and the human side of maintenance errors.

Key points (4)
  • Subject I covers the privileges and limitations of a mechanic certificate and how to re-establish recency of experience once it lapses (AM.I.I.K1 and K2).
  • Subject I also covers record entries for return to service and FAA forms such as Form 337 and Form 8130-3.
  • Subject K covers calipers, micrometers, nondestructive testing (NDT) and progressive, 100-hour and annual inspections.
  • Subject L covers human error principles, event investigation and safety culture.
04

Structures, flight controls and airframe inspection

The first Airframe subjects: sheet metal and composite structures, wood and fabric, control cables, and the inspection and records rules for airframes.

Key points (3)
  • Subject A covers inspecting metal structures, sheet metal defects and choosing rivets and fasteners for a repair.
  • Subject B covers wood structures, the effect of moisture on wood and fabric, and acceptable wood defects.
  • Subject D covers inspection rules in Title 14 of the Code of Federal Regulations (14 CFR) part 91, records under part 43, Airworthiness Directives (ADs) and life-limited parts.
05

Landing gear, hydraulic, environmental, instrument and radio systems

Airframe systems that move, pressurize and inform: gear and brakes, hydraulics and pneumatics, cabin air and heat, the instruments and the radios.

Key points (4)
  • Subject E covers fixed and retractable gear, strut servicing and steering systems.
  • Subject F covers hydraulic components and fluids, servicing and troubleshooting, and pneumatic systems.
  • Subject H covers annunciator lights, magnetic compass swinging and pressure and temperature instruments.
  • Subject I covers radio principles, antennas and static wicks, and very high frequency (VHF), high frequency (HF) and satellite communications (SATCOM) systems.
06

Fuel, electrical, ice and rain, fire, rotorcraft and water systems

The rest of the Airframe section: fuel and electrical systems, protection from ice and fire, helicopter basics, and potable water and lavatory systems.

Key points (3)
  • Subject K covers DC and AC generation, starter generators, constant speed drives and voltage regulators.
  • Subject M covers fire zones, overheat and fire detection, and fire extinguishing agents.
  • Subject N covers rotorcraft aerodynamics, transmissions, rigging and rotor systems, so the Airframe test includes helicopters.
07

Reciprocating and turbine engines and engine inspection

How piston and turbine engines are built and work, and the inspection rules, approved data and service documents that apply to them.

Key points (3)
  • Subject A covers horizontally-opposed and radial engine construction and internal combustion theory.
  • Subject B covers turbine engine types, construction, performance monitoring and troubleshooting.
  • Subject C covers life-limited parts, special inspections and the use of FAA-approved data.
08

Engine instruments, fire protection, electrical, lubrication and ignition

The systems that keep an engine running and watched: its gauges, fire protection, electrical power, oil and ignition.

Key points (3)
  • Subject D covers fuel flow, exhaust gas and oil temperature, engine speed and pressure indicating systems.
  • Subject G covers oil types and grades, wet-sump and dry-sump systems and chip detectors.
  • Subject H covers the three electrical circuits of a magneto, shower of sparks and impulse coupling.
09

Fuel metering, induction, air, exhaust and propellers

Getting fuel and air in and exhaust out, cooling the engine, reversing thrust and controlling propellers.

Key points (3)
  • Subject I covers float and pressure carburetors, continuous-flow fuel injection and full authority digital engine control (FADEC).
  • Subject J covers induction system icing, superchargers, turbochargers and intercoolers.
  • Subject M covers constant speed propellers and governors and turbine propeller reverse and beta range operation.

Test day

What to bring to the knowledge, oral and practical tests

  • A valid photo ID showing your date of birth, signature and home address, such as a driver’s license, passport or military ID. If you aren’t a US citizen, bring your passport and a driver’s license or government ID card. If your ID doesn’t show your home address, bring one of the FAA’s accepted proofs of address, such as a utility bill or lease.
  • Your authorization to test: an AMTS graduation document, an FAA Form 8610-2 signed in block V by an FAA inspector, or a military Certificate of Eligibility
  • For a retest after a failure, your failed test report
  • For the oral and practical tests: two identically prepared Form 8610-2 applications with original signatures and your passing test reports

Before you go

  1. Download the mechanic ACS and the three FAA AMT handbooks. They’re the standard and the main reading for all three tests.
  2. Check that your name in IACRA matches your ID, because PSI can’t change the name on your test report.
  3. Look at the FAA testing supplement for mechanics, FAA-CT-8080-4G, because the test center gives you a copy with the same figures.
  4. If you need an accommodation for a disability, ask for it when you book with PSI and have your medical documentation ready.
  5. Find a Designated Mechanic Examiner early and agree the fee before your test date.
PSI: Schedule an FAA knowledge testThe FAA’s mechanic pages send you to this PSI site to find a test center and book. You need your FTN from IACRA first.

Study options

Where to study

The FAA’s own study material is free to download: the mechanic Airman Certification Standards, its companion guide and the three Aviation Maintenance Technician Handbooks. It doesn’t release its live questions, but PSI Services, its testing vendor, offers sample tests on its FAA site. Paid prep from Gleim and ASA is listed with each company’s own prices.

OptionPriceFree to useLinks
Official sources
FAA mechanic ACS, companion guide and AMT handbooksThe FAA’s Aviation Mechanic Airman Certification Standards (ACS), its companion guide and the three Aviation Maintenance Technician (AMT) HandbooksFAA-S-ACS-1 is the testing standard for the knowledge, oral and practical tests after July 31, 2023. The FAA says many test questions are based on the General (FAA-H-8083-30B), Airframe (FAA-H-8083-31B) and Powerplant (FAA-H-8083-32B) handbooks.
No charge; PDFs on faa.govYes, the FAA says the handbooks can be viewed and downloaded free of charge
PSI sample testsSample tests on the FAA site of PSI Services, the FAA’s knowledge testing vendorThe FAA’s mechanic FAQ says practice exams are on PSI’s website, and the ACS companion guide says PSI provides sample tests for registered users. You need an account, which uses your FAA Tracking Number (FTN).
Not listedPSI and the FAA don’t state a price; the FAA calls them practice exams
Question banks and test guides
Gleim AMT Test Prep OnlineOnline question bank and study outlines for the General, Airframe and Powerplant knowledge testsGleim says the set includes study outlines and FAA figures, unlimited customized quizzes and test center emulations. Gleim also sells IA training, listed on its maintenance page.
$179.95 for the set of all three testsNo; Gleim offers a free course demo
ASA Prepware, test guides and oral and practical guidePractice software, printed test guides for each test, and an oral and practical exam guideASA also sells the 2027 test guides bundled with Prepware at $49.95 each, the mechanic testing supplement FAA-CT-8080-4G at $28 and an Inspection Authorization Test Prep book at $99.95.
Prepware download $149.95 for all three tests, or $49.95 for one; 2027 test guides $19.95 each; Oral & Practical Exam Guide, Fifth Edition, $19.95No

Prices and ratings checked November 2026.

FAQ

Common questions

What is an A&P mechanic?

It’s a mechanic who holds the FAA’s Aviation Mechanic certificate with both the Airframe and the Powerplant rating. The FAA issues one certificate and adds the ratings to it, and you can hold only one if you like. With the certificate, a mechanic may maintain and alter the aircraft and parts they’re rated for and approve that work for return to service, within limits the rules set. The FAA says “certificate” and “license” get used for the same thing, so an “A&P license” is this certificate.

How long do you have to pass all the A&P tests?

24 months. 14 CFR 65.71 says you must pass all the prescribed tests within a period of 24 months, and the FAA’s companion guide to the mechanic ACS says a knowledge test report expires 24 calendar months after the month you took the test. If your report expires before you finish the practical test, you retake that knowledge test. There’s one exception: US military and civilian staff who served outside the United States in support of US Armed Forces operations may use an expired report under 14 CFR 61.40 if they take the practical test within 6 calendar months of returning.

Can you take the A&P tests before you turn 18?

Yes. The FAA’s testing matrix lists no minimum age for the General, Airframe and Powerplant knowledge tests, but the certificate itself needs you to be 18. The companion guide says an applicant under 18 who passes every test keeps the paperwork, then takes the test reports and Form 8610-2 to a Flight Standards office or an examiner after turning 18 to get the temporary certificate. Watch the 24-month window while you wait.

Do you need both the Airframe and Powerplant ratings?

No. The FAA says there’s no requirement to get both. Everyone takes the General test, and you take it once: if you add the other rating later, you only take its own test and its oral and practical test. An added rating needs its own experience, and 14 CFR 65.71(b) gives you 24 calendar months to pass its tests.

Does an A&P mechanic certificate expire?

No. A mechanic certificate stays in effect until it’s surrendered, suspended or revoked, and the FAA charges nothing to issue it. To use its privileges, though, you need enough work as a mechanic in the past 24 months, under 14 CFR 65.83. The career page sets out that rule.

What changed for A&P mechanics in 2026?

On July 1, 2026 the FAA published a proposal to replace the inspection authorization (IA) with an inspection rating on the mechanic certificate. The rating wouldn’t need renewing each odd-numbered year, and mechanics holding an IA when a final rule takes effect would be entitled to a replacement certificate with the rating. Comments closed on August 31, 2026. Until a final rule takes effect, the rules on these pages apply. The proposal is docket FAA-2026-6671. The same proposal would write “24 calendar months” into the rule for passing all your tests, which the FAA says is how it has counted them in practice.

Sources: FAA · GovInfo · Federal Register and 4 more. Checked November 2026.

Rules and fees can change, so check the official site before your test.