Washington: Japan's All Nippon Airways and Japan Airlines grounded their entire Boeing Dreamliner fleets after a 787 made an emergency landing in western Japan.
Here is a chronology of major glitches to hit the high-tech aircraft since in entered service in 2011 after more than three years of delays:
January 16: An ANA Dreamliner passenger plane makes an emergency landing in Japan after smoke is reportedly seen inside the cockpit. ANA said a battery problem triggered a cockpit error message.
-- Transport Minister Akihiro Ota announces an investigation and dispatches aviation bureau officials.
January 14: Japan's transport ministry says it has begun examining the Dreamliner that suffered two fuel leakages in less than a week.
January 13: A Japan Airlines (JAL) 787 suffers a fuel spill for the second time in a week.
January 11: US regulators announce an in-depth safety review of the Dreamliner after a spate of incidents involving the aircraft.
-- A crack in a cockpit windshield grounds an ANA Dreamliner after a domestic flight in Japan.
-- An ANA Dreamliner, also on a domestic Japanese flight, experiences a delay due to an oil leak.
January 9: ANA cancels a Dreamliner flight because of a brake problem.
January 8: A Japan Airlines 787 flight to Tokyo is grounded in Boston following a fuel spill.
January 7: A fire breaks out aboard an empty Japan Airlines 787 Dreamliner in Boston.
December 5: The US Federal Aviation Administration orders inspections of all Boeing 787 Dreamliners in service worldwide following reports of fuel leaks.
October 4: General Electric (GE) recommends new inspections of its GEnx engines, used on some Boeing 747 and 787 aircraft, following the failure of an engine on a 747 operated by Air Bridge Cargo in Shanghai on September 11.
September 5: ANA aborts the take-off of a Dreamliner after what appears to be white smoke is seen billowing from the plane's left engine, believed to be due to a glitch with the hydraulic system.
July 31: US safety regulators announce an investigation into a GE engine failure on a Dreamliner during testing in South Carolina.
July 28: A 787 suffers engine failure during testing in South Carolina.
July 23: ANA says it is having five Dreamliner jets repaired for a defect in their Rolls-Royce engines.
February 6: Boeing says it has discovered a manufacturing error that requires repairs in the fuselage section of some 787 Dreamliners.