AMT meaning in Military and Defence ?

Aviation Maintenance Technicians (AMT) are an enlisted rating of the United States Coast Guard. They inspect, service, maintain, troubleshoot and repair aircraft engines, auxiliary power units, propellers, rotor systems, power train systems, and associated airframe and systems-specific electrical components. They service, maintain and repair aircraft fuselages; wings; rotor blades; fixed and movable flight control surfaces; and also bleed aircraft air, hydraulic and fuel systems. AMTs fill aircrew positions such as flight engineer, flight mechanic, loadmaster, dropmaster, Aircraft Ground Handling, Flight Deck Handling, sensor-systems operator and basic aircrewman.