“New airplanes more or less will need adjustments, and currently we have no plans to swap or cancel orders,” said an executive at future 787 operator Hainan Airlines, who was not authorized to talk to the media and did not want to be named.

Qatar Airways Chief Executive Akbar Al Baker, who has previously criticized technical problems or delays with Boeing or Airbus jets, said there were no technical problems with the five 787s currently in use by the Gulf carrier.

“It doesn’t mean we are going to cancel our orders. It’s a revolutionary airplane,” he said.

Other carriers already flying the Dreamliner are Ethiopian Airlines, LAN Airlines, LOT Polish Airlines and United Airlines.

40 GALLON SPILL

The fuel leak on Tuesday was noticed at about 12:25 p.m. ET (1725 GMT) after the plane had left the gate in preparation for take-off to Tokyo. About 40 gallons spilled, and the jet was towed back to the gate, where passengers disembarked, said Richard Walsh, a spokesman for the transportation authority.

The plane departed about four hours behind schedule and was due to arrive in Tokyo on Wednesday evening.

No passengers or crew were injured in either incident, though firefighters were called out on both occasions.

Boeing shares fell nearly 2.7 percent on Tuesday, following a 2 percent drop on Monday - wiping around $2.8 billion off its market value, or more than a dozen Dreamliners at list price.