Mitsubishi Aircraft Corp. is accusing Bombardier Inc. of using "anti-competitive conduct" to limit competition for planes with less than 100 seats, as the Japanese company works to bring its long-delayed regional jet to the market.
In October, the Montreal-based maker of planes and trains sued the aircraft unit of Mitsubishi Heavy Industries Ltd., alleging that former Bombardier employees passed on trade secrets to help with the development and certification of the company's new regional jet known as the MRJ, short for Mitsubishi Regional Jet.
The MRJ will compete with regional jets produced by Bombardier and Brazil's Embraer SA.