ASD-STAN prEN 9252 (05/30/2018)

The purpose of this DOA standard is to define generic requirements applicable to repair design management and approval. It provides common means of compliance to EASA Part 21 DOA applicable requirements and/or military equivalent applicable requirements (e.g.: EMAR 21) in: identifying the applicable DOA regulatory requirements; identifying necessary capabilities and providing guidance for assessment and surveillance; describing the end to end repair design management and approval process, from the initiation of the repair design request to the repair design preparation, justification, approval and transmission; addressing the DOA requirements for each step of the process. It is applicable to repairs (4.6) to in service products, parts and appliances, including generic repairs in manuals (4.8). It should be complemented as necessary by the DOA holder and/or by the design supplier in order to add more detailed process steps used and/or explain deviations, to achieve a repair design management and approval process acceptable to both DOA holder and supplier.