Definition
A company or individual that supplies parts, materials, components, or services to an aircraft manufacturer, repair station, or operator. In aviation maintenance and manufacturing, a vendor is the source from which an item is purchased, and vendor identification is often required for traceability of parts back to an approved supplier.
Plain English
A vendor is the supplier you buy something from. In aviation, it's the company that sold the part, tool, or service.
Context Anchor
Seen in maintenance records, invoices, purchase orders, parts paperwork, and discussions about where an aircraft part or service came from.
Derivation
From the Latin 'vendere,' meaning 'to sell.' A vendor is literally 'one who sells.' The same root gives us 'vending machine.'
Why Pilots Care
Parts installed on an aircraft must be traceable to an approved vendor. Knowing the vendor matters for warranty claims, airworthiness directives, and confirming a part is genuine rather than counterfeit.
Intuition Check
Do not read vendor as just “any store.” In aviation, the vendor is often part of the trail showing where a part, material, or service came from.
Example Sentence 1
The mechanic recorded the vendor's name and the part number in the logbook to maintain traceability.
Example Sentence 2
Before installing the new battery, the pilot confirmed the vendor's authorization number matched the logbook requirements.