TS EN 9107

TS EN 9107 is a guidance document for Direct Delivery Authorization (DDA) in the aerospace supply chain. It helps define how responsibilities are split between the purchase order (PO), the Design Organisation (DO), and the delivery process so that design and airworthiness information remain current and the manufactured item is aligned with approved data.

How the DDA roles are divided

According to the stated scope, this standard is limited to the commercial aerospace industry when a request is made for a PO to have Direct Delivery Authorization, including an Appropriate Arrangement (AA) between the PO and the DO. In general technical terms, the DO is the party responsible for keeping design and airworthiness data continuously updated, while the PO is responsible for assuring that the manufactured article conforms to the approved design and airworthiness data. The PO is also responsible for providing airworthiness release documentation.

What this means for a quality system

DDA is not just a delivery label; it is a controlled arrangement that links configuration control, data integrity, and release documentation within a defined aerospace process. Instead of relying only on end-item inspection, the model depends on clear authority boundaries and ongoing exchange of approved information. TS EN 9107 serves as guidance for structuring that relationship, making the distinction between design responsibility and conformity assurance central to the quality system.