Aviation Machinist's Mates (AD) maintain, inspect, troubleshoot, preserve, and de-preserve aircraft engines and their related systems, including fuel, lubrication, compression, combustion, exhaust, accessory gearbox, aircraft mounted accessory drive, propeller, anti-ice, and bleed air systems; conduct special and conditional inspections and oil analysis; functional checks and required adjustments on engines and related systems; and supervise and provide training to powerplant work centers.
