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| Boeing 787 aircraft grounded after battery problem in Japan | Boeing 787 aircraft grounded after battery problem in Japan |
| (about 3 hours later) | |
| Japan Airlines has grounded a Boeing 787 Dreamliner aircraft after detecting smoke or gases that may have come from faults with the main battery. | Japan Airlines has grounded a Boeing 787 Dreamliner aircraft after detecting smoke or gases that may have come from faults with the main battery. |
| The problem was discovered during routine maintenance, and is a reminder of the battery faults that grounded all 787s for three months last year. | The problem was discovered during routine maintenance, and is a reminder of the battery faults that grounded all 787s for three months last year. |
| Boeing said it was aware of the issue and is working with Japan Airlines. | Boeing said it was aware of the issue and is working with Japan Airlines. |
| The airline said engineers noticed smoke, and then warning lights flashed signalling a battery fault. | |
| Boeing said early indications suggested that a single battery cell had released gases, and that the warning system had operated as planned. | Boeing said early indications suggested that a single battery cell had released gases, and that the warning system had operated as planned. |
| No passengers were on board. | No passengers were on board. |
| The company's shares price initially fell 1.5%, but eased backed later. | The company's shares price initially fell 1.5%, but eased backed later. |
| Any 787 battery problem is a sensitive issue. The worldwide fleet of Dreamliners was grounded last year while investigators looked into why two batteries on separate aircraft overheated in less than two weeks. | Any 787 battery problem is a sensitive issue. The worldwide fleet of Dreamliners was grounded last year while investigators looked into why two batteries on separate aircraft overheated in less than two weeks. |
| Boeing redesigned the battery system, although the precise cause of the problem was never conclusively proved. | Boeing redesigned the battery system, although the precise cause of the problem was never conclusively proved. |
| Richard Westcott, the BBC's transport correspondent, said: "Boeing says it appears that one cell within the lithium ion battery had gone wrong. The number of cells is highly significant. | Richard Westcott, the BBC's transport correspondent, said: "Boeing says it appears that one cell within the lithium ion battery had gone wrong. The number of cells is highly significant. |
| "There are eight in total for each battery, and if the chemicals spread from one to the next it can potentially start a fire. | "There are eight in total for each battery, and if the chemicals spread from one to the next it can potentially start a fire. |
| "Boeing never did solve the battery problem that grounded the entire Dreamliner fleet last year. Instead, Boeing put in a raft of safety measures to contain any future issues." | "Boeing never did solve the battery problem that grounded the entire Dreamliner fleet last year. Instead, Boeing put in a raft of safety measures to contain any future issues." |
| There are 115 Dreamliners currently flying with 16 customers. | There are 115 Dreamliners currently flying with 16 customers. |