The U.

S aviation regulator is to lift the ban on the Boeing 737 max, saying it believes the aircraft to be 100% safe to take passengers again.

The 737 max was grounded worldwide in March 2019 following two crashes that killed 346 people.

Theo Leggett reports two devastating air crashes, one off the coast of Indonesia and another in Ethiopia.

Just four months apart.

346 people were killed.

Both involved Boeing's newest aircraft, the 737 Max planes being grounded worldwide for the past 20 months.

But now regulators in the United States say it can fly again.

Well, I lost my wife, Carol um, my three Children, Ryan, Kelly and Ruby, and I also lost my mom in law.

Paul Darragh lost his entire family when Ethiopian Airlines Flight 83 02 crashed minutes after taking off from Addis Ababa.

He's been lobbying hard to prevent the 737 max getting back in the air.

We still have our lawyers fighting with going in court and the FAA supporting point.

They cannot even produce the documents that they've been asked to produce.

So what are they hiding?

So they can come and they can come and stand before cameras and tell the world world these planes are said, We're gonna We're gonna believe that, not me.

Paul's family died because the plane they were traveling on, identical to these had catastrophic design floors.

A single sensor failure triggered a response from the planes computers that ultimately put it into a dive.

The pilots could not prevent Senator Blumenthal.

Thank you very much, Mr Chairman.

Later, American congressmen demanded answers from Boeing.

Boeing came to my office shortly after these crashes and said they were the result of pilot error.

Those pilots never had a chance.

Thes loved ones never had a chance.

They were in flying coffin.

In a scathing report, US lawmakers concluded Boeing had placed profits and production speed over safety, and regulators had simply failed to do their job.

The company insists it's learned hard lessons from the disasters on that safety is its top priority.

The design flaws on the max have now been rectified on.

Pilots will be given extra training, rectified and analyze, and test flown and checked in simulators like no other function in in the world.

Actually on an aircraft, it is the most ordinary affected flight function and flight computer software in the world.

Right now, the plane will be allowed back in the air.

The question is whether passengers will ever be happy to get aboard theater like a BBC news on more on this as we get it and of course, on the BBC website.