Two French families have filed lawsuits against US aircraft manufacturer Boeing for $276 million in damages over the crash of Ethiopian Airlines 737 Max 8.
The families referred to the Lion Air crash and accused the planemaker of "involuntary homicide".
Nadege Dubois-Seex, whose husband was killed in the crash, said "technical failure could not have been ignored" by the manufacturer and other actors involved in constructing the aircraft.
"It is a tragedy which, by definition, could have been avoided, because it had already happened five months before. How could they stay deaf to this warning?" Dubois-Seex told reporters in Paris.
On Saturday, Boeing admitted it had to correct flaws in the flight simulator software on the 737 Max, following the two deadly crashes that killed a total of 346 people.

Trump backs down on strikes on Iran's power network
ICE agents begin deploying at some US airports
Pilot, co-pilot killed after passenger jet hits fire truck at LaGuardia airport
Kuwait launches probe into espionage, state security cases
Trump, Iran threaten to escalate conflict with attacks on energy and water facilities
Fuel reservoir in Russia's Primorsk port on fire after drone attack, governor says
Ambulances from Jewish community organisation torched, UK police say
Israeli airstrikes kill four in Gaza, Palestinian officials say
