Japan Airlines Co. plans to replace all aircraft flown by domestic subsidiary J-Air Corp. with the new fuel-efficient Mitsubishi Regional Jet.

Chairman Masaru Onishi explained the move in a recent interview with Kyodo News, saying the swap-out could be complete just over a decade from now.

J-Air primarily serves routes linking Osaka and Sapporo with smaller Japanese cities. It operates 15 E170 aircraft with 76 seats, manufactured by Brazil's Embraer SA, and nine 50-seat CRJ200 planes made by Canada's Bombardier Inc.