https://blog.jasonmarquette.com/tags/airworthiness-directives/ Recent content in Airworthiness Directives on Jason Marquette Hugo en-us Tue, 23 Jun 2026 08:00:00 -0500 https://blog.jasonmarquette.com/ap/full-faa-regulations-ap-blog-post/ Tue, 23 Jun 2026 08:00:00 -0500 https://blog.jasonmarquette.com/ap/full-faa-regulations-ap-blog-post/ <p>Studying FAA regulations for the A&amp;P certificate can feel overwhelming at first. There are a lot of regulation numbers, legal definitions, recordkeeping rules, inspection requirements, and certification terms that all seem to run together.</p> <p>The trick is not to memorize every regulation word-for-word. The goal is to understand what each regulation does and how it fits into aircraft maintenance.</p> <p>For A&amp;P students, the most important regulations usually come from:</p> <ul> <li><strong>14 CFR Part 39</strong> — Airworthiness Directives</li> <li><strong>14 CFR Part 43</strong> — Maintenance, preventive maintenance, rebuilding, and alterations</li> <li><strong>14 CFR Part 65</strong> — Mechanic certification, privileges, and limitations</li> <li><strong>14 CFR Part 91</strong> — Aircraft maintenance responsibility, inspections, and records</li> <li><strong>14 CFR Part 21</strong> — Certification of aircraft, engines, propellers, and parts</li> </ul> <p>This post is written as both a blog article and a study guide. Each section explains the regulation in plain language, why it matters to a mechanic, and what you should remember for the written, oral, and practical exams.</p>