They’ve lost what was meant to be a workhorse of the global aviation industry indefinitely, now Boeing is seeing a shakeup at the top.

Dennis Muilenburg is stepping aside in the latest shakeup at the Chicago-based aerospace giant.

The airline already announced its scaling down production of the Boeing 737 Max jets as they try to regain clearance from regulators to get the planes back in the air. They were grounded after the Ethiopian airways crash back in March. 18 Canadians were among the 157 dead in that flight.

It was the second crash of the relatively new plane in a matter of months.

They’ve also had issues with their latest edition of the 777 jet. The 777x has had some fuselage and door issues as they’re still waiting for a full test flight.

Boeing also suffered a setback this week with its reusable space capsule NASA plans on using to get astronauts back to the International Space Station.

The Starliner returned to earth much earlier than planned after it never attained sufficient orbit to dock with the ISS on an uncrewed test flight that launched on Friday. It was an error on the ground but questions now persist over whether they’ll do another test before putting humans on board next year.

This was supposed to be the final test flight.