You will need a letter from the Airframe and Powerplant mechanic(s) that you have been working under. This letter should state, in detail, what aircraft and/or powerplants you have been working on, what tasks you have performed and how long you were doing these tasks. Remember, you may have multiple letters but they must total 30 months experience for both airframe and powerplant or 18 months for each.

(Civilian Letter Recommendations)