(CNN) — Boeing could soon be putting the brakes on production of its 737 Max airplanes.
Industry insiders say the company is deciding on possibly stopping or further reducing production of the 737 Max.
The planes were grounded worldwide in march after two crashes that killed 346 people. Boeing has continued to build 42 of the planes a month since the grounding, but has not been able to deliver them.
The company has already said it will take until at least 2021 to deliver all the planes.
In a statement to CNN, Boeing said only that it continues to quote “Work closely with the FAA and global regulators towards certification and the safe return to service of the Max.”