A federal court has reversed a ruling that overturned Boeing Co.’s $1.1 billion contract for maintenance of an Air Force refueling tanker jet.

The U.S. Court of Appeals for the Federal Circuit’s ruling Tuesday overturns a 2008 decision by the U.S. Court of Federal Claims and reinstates Chicago-based Boeing’s 10-year contract for work on the 50-year-old fleet of KC-135 tankers, The Wall Street Journal reported Wednesday.

Boeing, which built the KC-135, was awarded the maintenance contract in September 2007, and the aerospace giant has been awarded similar contracts for nearly a decade.

Competitor Alabama Aircraft Industries Inc. of Birmingham, Ala., filed suit, alleging the contract was not properly awarded to Boeing and citing issues involving pricing and past performance, The Associated Press reported.