Noboru Tomura/Asahi Shimbun, via Associated Press
An All Nippon Airways flight in Takamatsu, Japan, after an emergency landing on Wednesday.
TOKYO — The two largest Japanese airlines said Wednesday that they would ground their fleets of Boeing 787 aircraft after one operated by All Nippon Airways made an emergency landing in western Japan.
The latest episode elevates the safety concerns about Boeing’s new flagship airliner.
The emergency landing followed a string of problems in the past month with the Boeing 787, known as the Dreamliner, including a battery fire, fuel leaks and a cracked cockpit window. All Nippon said the problems Wednesday involved the same lithium-ion batteries that caught fire last week in Boston on a Dreamliner operated by Japan Airlines.
Last week, the U.S. Federal Aviation Administration ordered a comprehensive review of the Dreamliner’s manufacturing and design, with a focus on the plane’s electrical systems. During a news conference last Thursday, the U.S. transportation secretary, Ray LaHood, made no mention of grounding Dreamliners. But if the problems continue, tougher measures could presumably be taken.
Boeing executives declined to comment Wednesday on the Japanese groundings. The company’s shares were down 3.7 percent in afternoon trading Wednesday in New York.
Eight airlines now fly the Dreamliner. All Nippon Airways and Japan Airlines in Japan own 24 of the 50 delivered by Boeing since November 2011. The other operators are Air India, Ethiopian Airlines, LAN Airlines of Chile, LOT of Poland, Qatar Airways and United Airlines of the United States. Orders for about 800 additional 787s are in the pipeline.
In the episode in Japan early Wednesday, the 137 passengers and crew members aboard Flight NH692 from Yamaguchi Ube Airport, in western Japan, to Tokyo used emergency slides to leave the aircraft early after battery trouble and an “unusual smell” in the cockpit prompted its pilots to land instead at Takamatsu airport, according to All Nippon. The jet’s main battery in the front of the plane was later found to have become discolored and to be seeping electrolyte fluid, All Nippon said.
Ryosei Nomura, a spokesman for All Nippon, said Wednesday that the airline was temporarily grounding all 17 of its Dreamliners for inspections, leading to the cancellation of 38 domestic and international flights. Japan Airlines also said it would ground the five Dreamliners it was operating; two other aircraft were already undergoing safety checks.
Akihiro Ota, the Japanese transportation minister, said that the emergency landing had raised concerns about the Dreamliner’s safety and that he would dispatch officials to investigate. “I see this as a serious incident which could have led to a serious accident,” Mr. Ota said in Tokyo.
All Nippon and Japan Airlines said the planes would return to the air after safety checks, although it was unclear how soon that might be. All Nippon said it would keep its Dreamliner fleet grounded Thursday, canceling 35 domestic flights and using other types of aircraft for its international routes.
The review by the U.S. aviation administration is unusual, just 15 months after the plane entered service following a lengthy certification process by the agency. That review is in addition to a formal investigation by the U.S. National Transportation Safety Board of what caused a battery fire on a Japan Airlines plane that flew to Boston from Tokyo last week.
The safety board said Wednesday it was “currently in the process of gathering information about the B-787 emergency landing in Japan earlier today.”
Boeing has sought to ease concerns about the plane’s design and reliability, and has said it is no more trouble-prone than other new commercial airplane programs.
Updesh Kapur, a spokesman for Qatar Airways, affirmed on Wednesday the airline’s view that the Dreamliner was safe but declined to comment on the decisions by the Japanese carriers. Qatar Airways operates three Dreamliners and has orders and purchase options for 57 more.
Last week, Akbar Al Baker, the Qatar Airways chief executive, played down the recent string of Dreamliner incidents as “teething issues with various components” and expressed confidence that Boeing would resolve any problems. He added that his airline was taking “every precaution” to ensure its fleet was safe to fly.
Deepening Crisis for the Dreamliner
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Deepening Crisis for the Dreamliner
