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Aviation Machinist's Mates (abbreviated as AD) are United States Navy aircraft engine mechanics that inspect, adjust, test, repair, and overhaul aircraft engines and propellers. More specifically, ADs install, maintain, and service various aircraft engine types as well as various accessories, gear boxes, related fuel systems, and lubrication ...
This check puts the aircraft out of service for 1–4 weeks. The aircraft must not leave the maintenance site until it is completed. It also requires more space than A and B checks, therefore, it is usually carried out in a hangar at a maintenance base. The effort needed to complete a C check is up to 6,000 man-hours.
[2] The required tests include a set of knowledge tests, followed by a practical test, which includes an oral examination component, and which is administered by a Designated Mechanic Examiner (DME). A person who fulfills the necessary requirements is issued a mechanic certificate with either an airframe or powerplant rating, or both. [3]
Airframe heavy maintenance is worth $6 billion in 2019: $2.9 billion for C checks and $3.1 billion for D checks, Aviation Week & Space Technology forecasts a growth to $7.5 billion in 2028 — $3.1 billion C and $4.2 billion D — for $70 billion over 10 years, 10% of the overall market compared to 40% for the engines. [26]
Maintenance testing is a test that is performed to either identify equipment problems, diagnose equipment problems, or confirm that repair measures have been effective. It can be performed at either the system level (e.g., the HVAC system), the equipment level (e.g., the blower in an HVAC line), or the component level (e.g., a control chip in the control box for the blower in the HVAC line).
According to the Bureau of Naval Personnel (BUPERS), the job of a Machinist's Mate is to "operate, maintain, and repair (organizational and intermediate level) ship propulsion machinery, auxiliary equipment, and outside machinery, such as: steering engine, hoisting machinery, food preparation equipment, refrigeration and air conditioning equipment, windlasses, elevators, and laundry equipment.
Aircraft Maintenance Engineer: AME Aviation Medical Examiner: AMLCD Active-matrix liquid-crystal display: AMM Aircraft Maintenance Manual AMO Approved Maintenance Organization AMS Air management system AMSL Above mean sea level: AMP Aircraft maintenance program AMT Aircraft Maintenance Technician: ANC Active noise cancellation AND Aircraft Nose ...
Maintenance, and hence maintenance engineering, is increasing in importance due to rising amounts of equipment, systems, machineries and infrastructure. Since the Industrial Revolution , devices, equipment, machinery and structures have grown increasingly complex, requiring a host of personnel, vocations and related systems needed to maintain ...