Three are an astonishing 5,500 aircraft parts suppliers around the world with over 5 billion different parts available. The majority of parts from recently built are available from the original suppliers, but sadly older aircraft don't often experience continued support from their manufacturers. Sourcing difficult to find aviation components can be an almost impossible task. It can be tricky to obtain a part from a dedicated source so most maintenance companies try to define their stock by popular aircraft and popular parts. They will be aware of which parts wear the most regularly and try to locate consistent suppliers for that particular stock. This also allows pricing to be negotiated so all advantage in the chain of sale and purchase. Some companies buy any and all aircraft parts they can get their hands on to try and have a suitable supply, especially being centered on older airplanes to provide a quality service.
A large number of maintenance companies will claim they can get your part from aircraft parts and equipment manufacturers - even when they don't hold it in stock. They'll all use the same sets of parts brokers that keep a continuous catalog of parts available all around the world. This way they can tap into a resource that will notify them where the nearest part is held or on the other hand they'll search by cost. Of course delivery of large parts can add significantly to the bill.
The military seek separate arrangements for manufacturers to keep stock for specified periods. This mean that they are able locate spares with expediency - thus eliminating the worry about unavailability at any stage during the contract.
Bricks and mortar and online suppliers will quote guaranteed costs for all parts.
When selling an aircraft it's common practice for the purchaser to buy all of the spare parts you hold as well. This allows them to have a ready stock of the parts that are expected to wear out first. The other method is to sell the parts to a maintenance company or a parts company. They'll always want more inventories to be able to service their commercial and military requirements.
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By Dani Mer
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