The negative outlook reflects the uncertainty in the air transportation industry and assumptions used in our base case for Airbus, in particular the risk that demand for new aircraft will be lower than we currently expect, leading Airbus to further cut production and engage in a higher level of restructuring than currently anticipated. Although this is not our current expectation, in such a scenario, we would assume Airbus would not be able to generate positive free cash flow, which would increase the amount of financial debt and weaken credit ratios below our current expectations. Ratings downside could materialize, if we saw Airbus' operating and financial performance deteriorate beyond current expectations in 2020, without a pronounced recovery in civil aircraft production