US regulators ground all Boeing 787 Dreamliners The incident is the sixth in the past 10 days to hit the Dreamliner, which Boeing has spent billions of dollars on and touted as the future of air travel, due to its radical new design, systems and materials. The FAA said the temporary grounding of all US-based planes will allow investigators to examine a "potential battery fire risk" in the 787. The regulator said it will work with Boeing and airlines "to develop a corrective plan to allow the US 787 fleet to resume operations as quickly and safely as possible." Officials from Boeing, the National Transportation Safety Board and the FAA are expected to arrive in Tokyo tomorrow morning to help investigate the incident the Japanese government called "highly serious." "What started as a series of relatively minor, isolated incidents now threatens to overhang Boeing until it can return confidence," said Robert Stallard, an analyst at RBC Capital Markets. The FAA, which conducted more than 200,000 hours of tests on the 787 before it came into service in late 2011, recommended that other national aviation authorities take similar action. The regulator last week launched a comprehensive review of the aircraft but insisted it is safe. Boeing is co-operating with the FAA's investigation and said on Wednesday that it is working with ANA following the latest incident. Although there are only 50 Dreamliners in active service, airlines have orders with Boeing for more than 800. The airline is increasing production this year to fill those orders. Watch the boss of Qatar Airways tell the Telegraph of his reservations about the Dreamliner. Watch the Telegraph's exclusive look inside the Dreamliner