The U.S Federal Aviation Administration gave the green light for Boeing's 737 MAX to fly again on Wednesday.
But as the company readies the MAX plane for its return, the families of the victims of the Boeing 737 MAX crash in Ethiopia have denounced the U.S. regulator's decision to unground the plane.
346 people were killed within five months in 2018 and 2019 when two MAX planes crashed in Indonesia and Ethiopia.
Michael Stumo lost his 24 year old daughter Samya in the Ethiopian crash, and believes little has been done to ensure the plane's safety.
"My family and the crash families are very upset that this plane is going back in the air," he said. "We don't have a final crash report from the Ethiopian authorities. They haven't addressed the inherent instability of this aircraft which is because of its actual configuration."
After nearly two years of scrutiny, the FAA gave Boeing its approval, but will now demand new pilot training and software upgrades to deal with a stall-prevention system called MCAS..
which in both crashes repeatedly pushed down the jet's nose, as pilots struggled to regain control.
Brittney Riffel's husband Melvun also died in the Ethiopian crash. She accuses Boeing of putting profits before safety, and is urging people to avoid the planes:
"You know, we're fighting for our families and for public safety, and we're putting our voice out there about Boeing and the FAA and their safety culture, and how they put profits before human safety. And that's extremely important for the public to know, especially right now as they're ungrounding the MAX."
Boeing is facing around 100 lawsuits by families of 157 victims of the Ethiopian Airlines crash.
The company has argued in court that because the aircraft was certified by U.S. regulators it is immune from liability.