Photo/IllutrationHisakazu Mizutani, president of Mitsubishi Aircraft Corp., talks about the Mitsubishi Regional Jet 90 in Toyoyama, Aichi Prefecture, on Oct. 1. (Takehiro Tomoda)

TOYOYAMA, Aichi Prefecture--No more holdups will beset the much-delayed Mitsubishi Regional Jet (MRJ) 90, the first Japanese-made passenger jet, the president of Mitsubishi Aircraft Corp. pledged in an interview with The Asahi Shimbun.

“We will definitely honor our promise to deliver the first jet in the middle of 2020,” Hisakazu Mizutani said on Oct. 1.

Mizutani said the company plans to complete alterations to the jet’s design, including changing the wiring in the aircraft’s fuselage.

The MRJ project has been mired in a slew of problems over much of the past decade. The company planned to deliver the first MRJ90, which has about 90 seats, in 2013, but it has been postponed five times since. Development costs ballooned to 600 billion yen ($5.26 billion) from the initial estimate of less than 200 billion yen.

Just last month, Mitsubishi Heavy Industries Ltd., the parent company of Mitsubishi Aircraft, announced its prospect of injecting an additional 200 billion yen by the time the aircraft is delivered.

Asked about the progress of the project currently, Mizutani said, “We are managing to keep things going according to schedule.”

He indicated that new technology that is not available with the MRJ90 will be introduced to the MRJ70, which is under development as a derivative aircraft with about 70 seats.

Details are under consideration, he added.

Mizutani ruled out the possibility that Myanmar’s troubled Air Mandalay Ltd. might cancel its order for 10 MRJ90, including the right to purchase.

The carrier suspended all its flights in September.

“Our sales department is in constant contact with the airline,” he said. “I have received a report that the company wants to resume operations soon. No talks about cancellation have been raised.”