US Aircraft Manufacturer Boeing has won a victory in a long-running dispute with European rival Airbus.
The World Trade Organization has reversed on appeal a ruling that Boeing received some state aid to help build its newest aircraft, the 777X.
"The WTO has rejected yet another of the baseless claims the European Union has made," Boeing said in a statement.
However, Airbus said "the 'game' is far from over" as other complaints over alleged aid are still to be resolved.
The two aviation giants have been locked for years in a sprawling set of disputes at the Geneva-based WTO.