FARNBOROUGH, ENGLAND – Boeing has asked the U.S. government to press the European Union for transparency over a €3 billion ($3.43 billion) loan package to Airbus, resurfacing trade tensions after the two sides extended a tariff truce over jet subsidies.

The request for the U.S. government to intervene comes as Airbus has been talking about the development of a new plane as early ​as 2030, potentially kick-starting a fresh wave of competition in the global jet market.

Both sides won partial victories in a 17-year battle at ‌the World ‌Trade Organization over mutual claims of aircraft subsidies that led to a wave of transatlantic tariffs hitting other industries, before ​agreeing to a five-year truce in 2021.