Boeing opens factories to airlines and adds more checks after blowout

Team to be sent to inspect processes at main supplier as part of efforts to demonstrate safety of 737 Max 9

Boeing is implementing a further set of checks on its 737 Max 9 production lines and opening factories to airline scrutiny as it attempts to demonstrate the safety of its troubled plane.

The US manufacturer said it would also bring in independent assessors, beyond normal regulation, and send a team to the plant of its main supplier, Spirit AeroSystems, to check its processes as well.