Sonico stocks some 15-20 million dollars of spare parts that it routinely advertises on Inventory Locator Services and OneAero excess material Internet sites. What is not advertised is stock maintained for maintenance support and exchange pool stock. If you find yourself without a source for a component, go to the Contact Us linkĀ and let us know of that need. It is possible we can help and later backfill our inventory after resolving your needs.