Delta Air Lines Inc sued the Export-Import Bank of the United States on Wednesday, renewing a legal fight over subsidies that benefit aircraft exporters such as Boeing Co and by extension non-U.S. airlines.
The suit was filed in U.S. District Court in Washington, D.C. Joining Delta as plaintiffs were Hawaiian Airlines Inc and the Air Line Pilots Association, International.
The suit alleges that new Eximbank procedures for conducting economic analysis are illegal. It asks a judge to block them before they take effect in April.