The A321XLR’s ongoing certification and flight-test campaign is now in its final stages. As well as debriefing after the airlines’ recent route-proving flights, attention is also being focussed on ensuring that the first operators will have everything that they will need in terms of airworthiness compliance and operational support on day-one. This includes especially the technical documentation and the strategic spares and on-site expert support – to enable the airlines’ smooth operations with the longest-range Airbus Single-Aisle airliner.