FAA Airframe Mechanic Certification Exam Overview
The FAA Airframe Mechanic written exam tests your knowledge of aircraft structures and systems required to earn an Airframe certificate under 14 CFR Part 65. The written test consists of 60 questions and you have 2 hours to complete it. A passing score of 70% or higher is required.
The Airframe certificate covers everything from fuselage construction and wing structures to empennage assemblies and control surfaces. Unlike the Powerplant rating, which focuses on engines and propellers, the Airframe rating covers the aircraft body, skin, and associated systems including hydraulics, pneumatics, and flight controls.
Candidates must be at least 18 years old, able to read, write, speak, and understand English, and demonstrate 18 months of practical experience — or present evidence of graduation from an FAA-certificated Aviation Maintenance Technician School (AMTS).
Key Airframe Knowledge Areas
The FAA Airframe written exam draws from the Aviation Mechanic Airframe knowledge test guide (FAA-G-8082-11). Questions cover aircraft covering and structural repair using fabric, aluminum sheet metal, fiberglass, and advanced composites. You must understand inspection procedures, including 100-hour and annual inspections, condition inspections, and progressive inspection programs.
Hydraulic and pneumatic systems are heavily tested. Expect questions on actuating cylinders, hydraulic pumps, reservoirs, accumulators, and priority valves. Pneumatic systems for landing gear, brakes, and deicing are also included. Weight and balance questions require you to calculate CG location after adding or removing equipment.
Aircraft assembly and rigging covers control surface alignment, cable tension, and the use of rigging fixtures and tools. The welding section tests knowledge of oxyacetylene, MIG, and TIG processes as applied to airframe repair under approved data.
Identify aircraft structural components: fuselage frames, stringers, longerons, and spars Understand fabric covering inspection criteria and dope application standards Know sheet metal repair procedures including rivet selection and hole sizing Study composite repair methods: wet layup, pre-preg, and bonded repairs Review hydraulic system fluid types, contamination checks, and bleeding procedures Learn pneumatic system components and troubleshooting steps for landing gear Practice weight and balance calculations using moment arms and datum reference Understand rigging procedures for ailerons, elevators, rudder, and flaps Memorize FAA-approved inspection intervals and airworthiness directive compliance Review welding standards for 4130 steel tube fuselage repair and heat treatment How to Use This Practice Test PDF
Print the PDF and work through the questions in a timed setting — allow yourself 2 minutes per question to simulate real exam conditions. After completing each section, review the answer explanations to reinforce your understanding of the underlying FAA regulations and technical standards.
Cross-reference incorrect answers with the Aviation Maintenance Technician Handbook – Airframe (FAA-H-8083-31) and the relevant Advisory Circulars. Repeat the practice test until you consistently score above 80% before scheduling your official knowledge test at an FAA-approved testing center.
How many questions are on the FAA Airframe Mechanic written exam?
The FAA Airframe Mechanic knowledge test contains 60 questions. You have 2 hours to complete the exam, and a minimum passing score of 70% (42 correct answers) is required. The test is administered at FAA-approved testing centers using a computer-based format.
What is the difference between the Airframe and Powerplant certificates?
The Airframe certificate covers the aircraft structure and non-engine systems: fuselage, wings, hydraulics, flight controls, landing gear, and avionics installations. The Powerplant certificate covers reciprocating and turbine engines, propellers, and engine fuel/ignition systems. Many mechanics pursue both (A&P) for greater employment flexibility.
Can I use the practice test PDF to study without an instructor?
Yes. The practice test PDF is designed for self-study. Work through questions independently, then review the answer key and explanations. Supplement your study with the FAA Airframe Handbook (FAA-H-8083-31), which is available free on the FAA website, and any AMT school materials you have access to.
How long does it take to prepare for the FAA Airframe written exam?
Most candidates preparing independently spend 4 to 8 weeks studying. Graduates of FAA-certificated AMTS programs are typically well-prepared after completing their coursework. Focus on high-weight topics like aircraft structures, hydraulics, and weight and balance, then use practice tests to identify and close remaining knowledge gaps before your exam date.