| Aviation Machinist's Mate | |
|---|---|
Rating insignia |
|
| Issued by: United States Navy | |
| Type | Enlisted rating |
| Abbreviation | AD |
| Specialty | Aviation |
Aviation Machinist's Mate (abbreviated as AD) is a United States Navy occupational rating.
Aviation Machinist's Mates maintain aircraft engines and their related systems, including the induction, cooling, fuel, oil, compression, combustion, turbine, gas turbine compressor, exhaust and propeller systems; preflight aircraft; conduct periodic inspections on engines and engine-related systems; field-test and adjust engine components, including fuel controls, pumps, valves and regulators; remove, repair and replace compressor and turbine blades and combustion chamber liners; preserve and depreserve engines, engine accessories and components; and supervise engine work centers.[1]
At the E-8 level, ADCS (Senior Chief Aviation Machinist's Mate) look towards advancement to AFCM, E-9 (Master Chief Aviation Maintenanceman). At the E-9 level, ADCS (Senior Chief Aviation Machinist's Mate) and AMCS (Senior Chief Aviation Structural Mechanic) look towards advancement to AFCM (Master Chief Aviation Maintenanceman).
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