Aviation Machinist's Mate (abbreviated as AD) is a United States Navy occupational rating. This Manual of Style has the simple purpose of making things easy to read by following a consistent format — it is a style guide. ... USN redirects here. ... The term rating or rate carries different meanings depending on which navy is being discussed. ...
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]
The United States Navy (USN) is the branch of the United States armed forces responsible for naval operations. ... 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD (or CE) era. ... January 11 is the 11th day of the year in the Gregorian calendar. ...