Fatigue Failure – Fatigue failure of metal components is by far the most common type of the failure of aircraft components. Fatigue Failure is defined as the progressive and localized structural damage that occurs when a material is subjected to repeated or fluctuating loads (cyclic loading). The maximum stress values are less than the ultimate [...]
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Posted in Aircraft Structure Terms, Aviation Terms | Tagged Aviation Safety, Engineering, Maintenance, Structures
Any point on an aircraft at which single mal-assembly could lead to catastrophe, i.e. result in loss of aircraft and/or in fatalities. Certain parts in an aircraft’s structure or system (including controls and control systems) which are vital to the safety of the aircraft, are not only designed to achieve the appropriate high integrity but [...]
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Posted in Aviation Maintenance Terms, Aviation Safety Terms, ICAO Terms | Tagged Airworthiness, ICAO, Inspection, Maintenance
Heavy Maintenance – Heavy Maintenance is any maintenance, inspection, repair, or alteration a manufacturer has designated that requires specialized training, equipment, or facilities.
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Posted in Aviation Maintenance Terms | Tagged Aircraft Maintenance, Airline, Maintenance
Hydraulic Ground Power Unit – Hydraulic power units, sometimes called a hydraulic mule, provide hydraulic pressure to operate the aircraft systems during maintenance. They can be used to: • Drain the aircraft hydraulic systems. • Filter the aircraft system hydraulic fluid. • Refill the aircraft system with clean fluid. • Check the aircraft hydraulic systems [...]
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Posted in Aviation Maintenance Terms | Tagged Ground Equipment, GSE, Maintenance
Manufacturer’s Maintenance Manual – A manual provided by an aircraft manufacturer that outlines the methods, techniques, and practices prescribed for each person performing maintenance, alteration, or preventive maintenance on an aircraft, engine, propeller, or appliance. Also referred to as an AMM (Aircraft Maintenance Manual)
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Posted in Aviation Maintenance Terms | Tagged AMT, Maintenance
Rebuilt Aircraft Engines are used engines that has been completely disassembled, inspected, repaired as necessary, reassembled, tested, and returned to service in the same manner and to the same tolerances and limits as a new engine with either new or used parts.
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Posted in Aircraft Powerplant Terms | Tagged Engines, Maintenance, overhaul
CMR Definition – What is a CMR? – A CMR is a required periodic task, established during the design certification of the airplane as an operating limitation of the type certificate.
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Posted in Aviation Safety Terms, FAA Terms | Tagged Airworthiness, FAA, Inspection, Maintenance
The definition of Aviation / Aircraft Maintenance as defined by the FAA and EASA is
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Posted in Aviation Maintenance Terms | Tagged AMT, EASA, FAA, Maintenance
Compass Rose – A small circle graduated in 360 increments, to show direction expressed in degrees. Most airports have a compass rose, which is a series of lines marked out on a ramp or maintenance run up area where there is no magnetic interference. Lines, oriented to magnetic north, are painted every 30° which is [...]
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Posted in Aviation Maintenance Terms | Tagged FAA Pilot's Handbook, Instruments, Maintenance, Navigation
Essential Maintenance encompasses any on-wing accomplishment of any maintenance or alteration that the certificate holder has designated as a RII. Essential Maintenance is maintenance that would result in a failure effect that would endanger the continued safe flight and landing of the airplane if it was performed improperly or if improper parts or materials were [...]
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Posted in FAA Terms | Tagged Airlines, FAA, Maintenance, Regulatory, Repair Stations
