It is the first aircraft to be RFID-enabled from the ground up, with approximately 3000 RFID-tagged component parts on each A350.
The RFID tags are designed to remain with the parts throughout their entire lifecycle in order to digitally store the full maintenance history - improving process automation and traceability for suppliers, airlines and MRO providers.
More info on the Airbus A350 Part Marking Program, and supplier packages here.