A family of a Kenyan man who died in last month’s Ethiopia Airlines crash said it is taking the plane manufacturer Boeing to court in the US.

In all, 157 people died when the Boeing 737-Max 8 went down six minutes after take off on a flight from Ethiopia’s capital, Addis Ababa, to Kenya’s capital, Nairobi.

The 29-year-old engineer George Kabau was one of more than 30 Kenyans on board.

At a press conference in Nairobi his siblings said they wanted the company to release emails relating to the plane, which has now been grounded, Reuters news agency reports.

“We cannot replace him, and he cannot and shall not be replaced. But we pray that by what is happening, my parents especially and us as his siblings and all other loved ones, can use his demise to ensure safe travel for all,” said Mr Kabau’s sister.

Boeing is facing three other law suits relating to the Ethiopia crash, including from members of the family of a Rwandan victim.

The Ethiopian Airlines plane nose dived several times before it hit the ground, a preliminary report released a fortnight ago said.

Pilots “repeatedly” followed procedures recommended by Boeing before the crash, according to the first official report into the disaster.

Boeing’s boss has admitted for the first time a failure in the jet’s anti-stall system was a factor in the crash.

But the company has not commented on the legal cases.