The US aviation regulator has accused Boeing of pushing it to recertify the 737 Max jet more quickly than it would like, in the latest sign that the company will have to wait than hoped before getting its troubled aircraft back in the air.
Stephen Dickson, the head of the Federal Aviation Administration, was due to meet Dennis Muilenburg, the Boeing chief executive, on Thursday to discuss the Max, which has been grounded since March following the second of two fatal accidents, which killed 346 people in total.
Ahead of that meeting, the FAA sent a letter to staff in Congress who have been investigating the accidents, pushing back strongly on suggestions the Max would soon be allowed back in the air.