The aviation aftermarket, defined in plain English.
The terms that decide whether a part sells, at what price, and how quickly — written for the commercial side of the business rather than the manual.
OPERATIONS
AOG (Aircraft on Ground)
AOG means an aircraft is grounded and cannot fly until a part or repair is supplied, making the requirement urgent and commercially sensitive.
MRO (Maintenance, Repair and Overhaul)
MRO covers the organisations and activities that maintain, repair and overhaul aircraft, engines and components.
COMMERCIAL
CERTIFICATION
PMA (Parts Manufacturer Approval)
PMA is an FAA approval allowing a company other than the original manufacturer to produce and sell an approved replacement part.
FAA Form 8130-3
FAA Form 8130-3 is the airworthiness approval tag that certifies a part's conformity and eligibility for installation under FAA rules.
EASA Form 1
EASA Form 1 is the European authorised release certificate confirming that a part has been produced or maintained by an approved organisation.
Traceability & trace pack
Traceability is the documented history of a part from manufacture through every owner, repair and release event.
INVENTORY
Condition codes (NE, NS, OH, SV, AR)
Condition codes describe the physical and certification state of an aircraft part, from new to as-removed, and drive both price and eligibility.
Serviceable
A serviceable part has been inspected or maintained by an approved organisation and is certified as fit for installation on an aircraft.
Exchange unit & rotable pool
An exchange supplies a serviceable unit immediately in return for the customer's removed unit, typically with a fee reflecting the work required.
ENGINEERING
REPAIR
MARKET
See how these terms play out in practice across Avilinkr solutions.
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