日本航空停飞 787 客机Japan's two main airlines have grounded their Boeing 787 Dreamliners after one was forced to make an emergency landing because of battery problems.日本一架波音 787 客机因电池故障紧急迫降，此事导致两大主要航空公司停飞了旗下所有的该型号客机。 All Nippon Airways (ANA) grounded its fleet of 17 Dreamliners when its flight NH 692 from Yamaguchi Ube was fo rced to land shortly after take-off. Japan Airlines followed suit, saying it would ground its fleet of seven 787s from 16 January until further notice. This is the latest setback for Boeing and its problem-hit Dreamliner planes. In recent weeks, Dreamliners have suffered issues including fuel leaks, a cracked cockpit（驾驶员座舱） window, brake problems and an electrical fire. "You're near ing the tipping point where they need to regard this as a serious crisis," said Richard Aboulafia, a senior analyst with the Teal Group in Fairfax, Virginia. "This is going to change people's perception of the aircraft if they don't act quickly." Battery malfunction On Wednesday, ANA's flight NH 692 left Yamaguchi Ube in western Japan at 08:10 local time and headed for Tokyo's Haneda airport. Shortly after take-off, smoke was seen in the cockpit but not in the passenger compartment, and a strange smell was reported. ANA says that it does not yet know the source of the smoke and is investigating the problem. However, it added that the battery in the forward cargo hold was the same type as the one involved in a fire on another Dreamliner at a US airport last week. The ANA flight landed at Takamatsu airport at 08:47 on Wednesday after the pilot saw an error message in the cockpit. "There was a battery alert in the cockpit and there was an odd smell detected in the cockpit and cabin, and [the pilot] decided to make an emergency landing," said Osamu Shinobe, an ANA vice president, at a news conference. ANA said that the 129 passengers and eight crew were evacuated, with a number of people sustaining minor injuries. The Reuters news agency reported that five people were injured, while Bloomberg said that one person was sent to hospital. ANA officials were not immediately available to confirm the figures. The BBC's correspondent in Tokyo, Rupert Wingfield-Hayes, said that local television footage showed emergency chutes（瀑布，降落伞） were deployed from the plane. There were also fire trucks on the runway.
