The Transport Ministers of the four countries involved with Airbus will decide before July 17 on any loans for the A350 plane project, French minister Dominique Perben said on Monday.

Perben, briefing reporters on a pending visit to China, said the decision would be taken before the Farnborough airshow that opens on July 17.

He said Airbus would inform the ministers soon about the planned changes to the long-distance plane, after calls by potential customers for an overhaul. "We need to know quickly what it all means and what it signifies cost-wise," Perben said.