Study Guides
Written to be practiced, not re-read. Each section ends with a question before you move on.
6 guides · 24 built-in checks · 59 exact figures with statute citations
Re-reading is one of the least effective ways to study. These guides interrupt you with questions instead.
Electricity and Electronics
The largest General subject in this site's weighting at 16%: the circuit laws, series and parallel math, AC behavior, transformers, batteries, circuit protection and measurement, semiconductors and logic.
Open guideCleaning, Corrosion and Finishes
Fourteen percent of the weighting, home of the FAA's most-missed General code from April 2024 to March 2025 (corrosion identification and inspection, missed 77% of the time). How corrosion works, its forms, galvanic action, treatment, coatings and finish defects.
Open guideRegulations, Forms and Records
Thirteen percent of the weighting: who may become a mechanic, what a mechanic may do, how work and inspections are recorded, Form 337, the 100-hour and annual rules, ADs, and approved versus acceptable data. Checked against the current eCFR text.
Open guideGround Operations, Safety and Human Factors
Ground operations and servicing (9%) with human factors (6%): fire classes, fuels and fueling, towing and tie-down, engine starts, oxygen, taxi signals and FOD, then the Dirty Dozen and the FAA's error models.
Open guideHardware, Materials and Fluid Lines
Materials and hardware (8%) with fluid lines (4%): identifying bolts, nuts and rivets, safety wiring, torque, heat treatment and welds, then tubing sizes, flares and hose installation.
Open guideWeight and Balance, with the Math Behind It
Weight and balance (6%) and mathematics (8%) together: the terms, the CG arithmetic, adverse loading and ballast, plus the geometry, ratios and conversions the General tests on their own.
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