effect on our planning."
Hainan has 10 of the planes on order.
The grounding of the Dreamliner, an advanced carbon-composite plane with a list price of $207 million, has already forced Japan's ANA to cancel 151 domestic and 26 international flights scheduled for Jan. 23-28, affecting more than 21,000 passengers, the airline said on Monday.
ANA, which flies the most Dreamliners of any airline, is due to announce further flight cancellation plans on Thursday. The airline also said it may have to scale back its next two-year business plan because the 787 was to have been such a central part of that forecast.
Boeing has already delivered 50 of the 787s to date. Around half of those have been in operation in Japan, but airlines in India, South America, Poland, Qatar and Ethiopia, as well as United Airlines in the United States, are also flying the plane.
Boeing's main competitor, EADS, said on Wednesday it did not expect the problems with the 787 to affect the certification of its own rival plane, the Airbus A350.
"We will do what is needed to avoid the same problems," EADS strategy chief Marwan Lahoud told France's Radio Classic.
Airbus has said it hopes to achieve the maiden flight of the carbon-composite A350 by the middle of this year.