An avionics technician keeps an aircraft's electronic brains working: radios, navigation, radar, autopilot, displays and the wiring that ties them together. The work is part electronics, part careful paperwork, and part detective story. You will learn it in three stages. First, the electronics and safety basics. Second, the aircraft-specific skills, FAA rules and documentation that get you hired. Third, deeper troubleshooting and the credentials that move you into lead and inspector roles. In the US, most people reach the job through an FAA-approved Part 147 school, the military, or an entry-l
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Every stage from beginner to expert, with lessons, practice drills, projects, interview questions and free resources. Free with a Rolearch account.
Stage 1 of 3 · about 12 weeks
Understand DC and AC circuits, read schematics, solder properly and work safely, so you can explain why a simple circuit behaves the way it does and build one yourself.
DC and AC circuit theory
Every avionics fault comes down to voltage, current, resistance or signal. If you know Ohm's law, you can predict what a healthy circuit should read and spot what is wrong.
Multimeter and oscilloscope use
Test equipment is how you see what the circuit is doing. Your core tasks include testing with circuit testers, scopes and voltmeters.
Soldering and hand tools
You will repair and install components with soldering irons and hand tools. Poor joints cause intermittent faults that are very hard to find.
Reading schematics and wiring diagrams
You lay out installations and troubleshoot by following diagrams and manuals. You cannot fix what you cannot trace.
Basic digital electronics and number systems
Modern avionics use digital buses and computers. Binary and logic are the language of those systems.
Then 2 more stages (about 56 weeks in all) with lessons, drills, projects, 6 interview questions with strong answers and free resources.