You only need to prove that you have finish high school or secondary education.
To become a trained aircraft mechanic at Epic Flight Academy in New Smyrna Beach, Florida, USA you must:
1) Be 18 years old either prior to starting the program OR by the completion of the program.
2) Speak English proficiently.
3) Pass an entry-level exam.
Check your eligibility by completing this form: https://epicflightacademy.com/aircraft-mechanic-application/