The Boeing 787 Dreamliner, which was grounded by Japanese transportation authorities on Tuesday, has been troubled by problems since it was unveiled last year. The Federal Aviation Administration is also conducting a safety review of the cutting-edge aircraft.

2012

July -- A General Electric Co. engine on a 787 in North Charleston, South Carolina, breaks during a preflight test. The National Transportation Safety Board rules it a "contained" failure, meaning the broken pieces did not exit through the engine wall. GE orders inspections of the engines. The Federal Aviation Administration stops short of grounding planes for inspections.

Dec. 4 -- A United Airlines 787 with 184 people aboard is forced to make an emergency landing in New Orleans after experiencing electrical problems.

Dec. 5 -- U.S. regulators say there is a manufacturing fault in 787 fuel lines and advises operators to make extra inspections to guard against engine failures.

Dec. 13 -- Qatar Airways grounds one of its three 787s after finding the same electrical problem that affected the Dec. 4 United flight.

Dec. 17 -- United confirms finding an electrical problem in a second plane in its 787 fleet.

2013

Jan. 7 -- A parked 787 operated by Japan Airlines catches fire at Boston Logan International Airport after a battery in an auxiliary power system explodes.

Jan. 8 -- A second 787 operated by Japan Airlines leaks fuel at Logan, forcing it to cancel its takeoff and return to the gate. The plane departs later.

Following a safety inspection, United finds a wiring problem in the same electrical system that caused the Jan. 7 fire in Boston, the Wall Street Journal reports.

Jan. 9 -- Japan's All Nippon Airways Co cancels a 787 flight scheduled for a domestic trip within Japan due to brake problems.

Jan. 11 -- A cockpit window on an ANA 787 cracks during a Japanese domestic flight. The plane lands safely with no injuries.

A separate ANA 787 springs an oil leak from its left engine, which is discovered after the plane lands safely.

The U.S. Department of Transportation says the 787 will undergo a comprehensive review of its critical systems.

Jan. 13 -- The Japan Airlines 787 that leaked fuel in Boston on Jan. 8 experiences another, separate fuel leak while undergoing checks in Tokyo.

Jan. 15 -- A 787 operated by ANA makes an emergency landing at Takamatsu in western Japan after smoke appears in the plane's cockpit.

Information from Thomson Reuters.