Launch customer ANA Holdings will get the jet in 2020, two years later than the current estimate, Mitsubishi said in Tokyo Monday. St. George, Utah-based SkyWest Inc. is the plane's biggest customer.
Revision of some electrical configuration to meet certification requirements prompted the latest pushback of the deadline.
The Japanese conglomerate has brought in bullet-train engineers and flown the jets to the U.S. to speed up certification as it attempts to break into the dominance of Brazil's Embraer and Canada's Bombardier in the market for aircraft with fewer than 100 seats. The move is "debilitating" for Mitsubishi, said Saj Ahmad, an analyst at London-based StrategicAero Research.
"The MRJ delays not only hand the advantage to competitors, but will make the MRJ harder to sell," Ahmad said. "It's clear that the technical obstacles preventing its certification are presently out of scope for Mitsubishi to contain."
On Monday, Mitsubishi Chief Executive Officer Shunichi Miyanaga didn't say from what base the costs were going up. The company's Chief Financial Officer Masanori Koguchi said in June the jet's development costs had already tripled to as much as 600 billion yen ($5.3 billion) from initial estimates. Miyanaga declined to provide new financial data on costs.
Mitsubishi Aircraft Corp. has flown three MRJ planes to the U.S. for testing, following setbacks last year. Even with the delays, Mitsubishi has an advantage because it's developing an aircraft with a new design, a company spokeswoman said.
"We're explaining everything in detail to our stakeholders," Miyanaga said. "We're facing the risks and taking a forward-looking attitude."
"We remain confident of the benefits the MRJ will bring to the ANA fleet in terms of performance and passenger comfort," the carrier said in an email statement. It has 25 of the planes on order, including options.
SkyWest has an order for 200 planes including options. The plane builder also has as many as 100 orders from Trans States Airlines Inc., also based in the U.S.
The jet, which can seat as many as 92 people, made its first flight in 2015 and won its first order from a European company in February.
Japan's last locally produced commercial aircraft was the YS-11, a turboprop made by Nihon Aircraft Manufacturing Corp., a consortium that included Mitsubishi Heavy, Kawasaki Heavy Industries Ltd. and Fuji Heavy Industries Ltd. Production was stopped in 1974 after 182 of the planes were sold.
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