Getting Through the A&P Written Exams

Most people approach the FAA mechanic certification like it is a three-exam trivia contest. It is not. The exams test whether you can find the right information fast enough and apply it without second-guessing yourself. I have watched students who knew half the material cold fail because they panicked over structure questions, and I have watched average students pass comfortably because they had a solid reference strategy. The written exams are open book. You get AC 65-9A, the FAA textbooks, and your own notes. That changes everything about how you should study.

How to Use an Airframe And Powerplant License Study Guide

A good study guide does not just list facts. The ones worth your time organize material around the actual exam code requirements — general, airframe, and powerplant — and then map those codes to specific FAA Advisory Circulars and textbook chapters. That mapping is what saves you during the test. I used a study guide that cross-referenced the exam questions to page numbers in the FAA handbooks. You will want the same kind of detail. When you are sitting there with forty minutes left and a question about propeller blade angles, you are not reading textbooks. You are flipping. My own experience was with a question on magnesium casting compatibility. The answer was not in the general section where most people would search first. It was buried in the powerplant chemistry subsection of the handbook. The study guide had flagged it with a yellow tab and a note that said "watch for this." I marked the right answer and moved on. Without that cross-reference, I probably would have wasted six minutes chasing it down.

What Actually Shows Up on the Exams

The General section covers math, electricity, materials, and basic physics. You need to be comfortable with Ohm's law calculations, unit conversions, and identifying common aircraft metals and their properties. The airframe section is heavier on hydraulics, landing gear, flight controls, and pressurization. The powerplant side leans hard on turbine engine cycles, fuel systems, ignition, and propeller theory. Here is something most beginners miss: the FAA does not care if you memorize every formula. They care whether you can work through a problem using the references you have. I have seen students spend weeks memorizing torque formulas when the real skill is knowing where to find the torque chart in the service manual quickly. The exam gives you enough reference material. Your job is to be faster at navigating it than the clock. Another counter-intuitive point is that the electricity questions are often simpler than they look. They test basic concepts — series versus parallel, Kirchhoff's laws, circuit breakers and fuses — not advanced electrical engineering. Do not overstudy the deeper theory. Focus on what the references say about standard aircraft electrical systems.

The Study Method That Actually Works

Start with the official FAA testing supplement. It tells you exactly what codes are on each exam and how many questions come from each topic area. Build your study schedule around those percentages. If twenty percent of the powerplant exam comes from turbine engines, spend twenty percent of your study time there or more. The rest is filler. Then use the study guide to drill weak spots. Take a practice test under timed conditions. When you miss a question, do not just look up the answer. Look up why the other options are wrong. The FAA loves distractors that sound plausible but are wrong for a specific reason — usually a units error or a swapped term like "static pressure" versus "dynamic pressure." I recommend keeping a personal error log. Write down every question you get wrong on practice exams, note which handbook page the correct answer came from, and rewrite the question in your own words. This forces you to process the material actively instead of just recognizing the right answer when you see it. When I was studying for my own checkride, I kept running into problems with induction system icing questions. The textbook explanation was vague about the difference between venturi icing and throttle icing. I found a service bulletin from a Piper manual that showed actual temperature and humidity conditions for both types. That one document cleared up about eight questions I kept missing. I added it to my reference stack and flagged it in the index.

References and Resources

The FAA provides free testing supplements at faa.gov. The primary textbooks are AC 65-9A for general, AC 65-9B for airframe, and AC 65-9C for powerplant. Many mechanics also use Jeppesen or ASA study guides because they break down the exam codes clearly and include practice questions with explanations. An Airframe And Powerplant License Study Guide is useful but treat it as a supplement, not a replacement. The guide organizes the material for you, but the FAA writes the questions directly from the handbooks and ACs. If your guide says something that conflicts with the official AC, the AC wins. Always.

Where This Approach Falls Short

Study guides vary wildly in quality. Some are accurate but thin. Others are comprehensive but outdated — especially on the powerplant side where modern engine management systems have evolved faster than some publishers update their editions. If you are studying turbine engines, check the publication date. A guide from five or six years ago may miss recent changes to full-authority digital engine control (FADEC) question topics. The open-book format also has a hidden trap. It creates a false sense of security. Students think they do not need to know anything because they can look everything up. Then they spend the entire exam searching and run out of time. The students who pass comfortably have at least read through the reference material once before test day. They know roughly where things are. They can flip to the right section in ten seconds instead of two minutes. There is also the practical issue of which reference edition your test center allows. The FAA updates its supplements periodically. Make sure your books match the version your testing station uses. Mismatched editions can cause confusion on questions with revised numbers or reworded answers. If you are someone who struggles with reading-heavy material, consider pairing your study guide with video courses that walk through the same topics. The FAA handbooks are dense and sometimes written in a way that feels like it was translated from regulatory language rather than designed for human comprehension. A good instructor can translate that into something you actually retain. One more thing nobody emphasizes enough: sleep before the exam. I know it sounds obvious, but the difference between a tired brain and a rested brain on an open-book test is significant. You are not being tested on raw memory. You are being tested on pattern recognition and navigation speed. Fatigue kills both.