To become an aviation inspector, you will need to have a two-year or a 4-year college degree. It is recommended that you pursue a relevant major such as avionics or aviation technology. Apart from college education, you may also have to take part in a training program or course at a aviation school. Through formal training, you will learn about aviation electronics, turbine engines, aviation regulations, etc. Typically, aviation inspectors start of their careers as aircraft mechanics.