In March 2010, the WTO ruled that European governments unfairly financed Airbus. In September 2010, a preliminary report of the WTO found unfair Boeing payments broke WTO rules and should be withdrawn. In two separate findings issued in May 2011, the WTO found, firstly, that the US defence budget and NASA research grants could not be used as vehicles to subsidise the civilian aerospace industry and that Boeing must repay $5.3 billion of illegal subsidies. Secondly, the WTO Appellate Body partly overturned an earlier ruling that European Government launch aid constituted unfair subsidy, agreeing with the point of principle that the support was not aimed at boosting exports and some forms of public-private partnership could continue. Part of the $18bn in low interest loans received would have to be repaid eventually; however, there was no immediate need for it to be repaid and the exact value to be repaid would be set at a future date. Both parties claimed victory in what was the world's largest trade dispute.