Officials at Boston's Logan International Airport say crews have contained a fuel leak from an outbound Japan Airlines flight to Tokyo in the second incident involving the airline at the airport in two days.
Massachusetts Port Authority spokesman Richard Walsh said the Boeing 787 was towed back to the gate for evaluation Tuesday after about 40 gallons (151 liters) of fuel spilled. He said the plane had 178 passengers and 11 crew members on board.
A JAL spokeswoman said the crew reported a "mechanical issue" before returning to the gate.
On Monday, a fire broke out in a battery pack in a different Japan Airlines plane, filling the cabin with smoke minutes after passengers disembarked.