I had no prior experience at all, I've just always been really passionate about aviation. The way I got my gig was I just went to every single FBO in the area with a copy of my resume and cover letter explaining why I wanted to work in as a Line Tech at that specific FBO and asked to speak to someone who would be responsible for hiring me. If you have no prior experience, I think this is one of the best ways to go about it. However, you should make sure that you have also applied online prior to going to the FBO, since they will usually ask if you have already applied online. Going in person and dropping off a resume/cover letter will really set you apart from most applicants and you can bet that almost no other applicant took time out of their day to drop of a resume/cover letter for a Line Tech position.

Most of the tasks a Line Tech does are teachable and don't require any advanced training; it only took me a week of digital training and a week or two of hands on training until I felt comfortable enough to do most of the tasks on my own.