PARIS, May 21 (Xinhua) -- A French woman, whose husband was killed when an Ethiopian Airlines flight crashed in March, has sued Boeing, alleging that the accident involving the 737 MAX 8 could have been avoided if the aircraft's defective system had been handled since 2018 crash, local media reported on Tuesday.

Nadege Dubois Seek, the widow of Jonathan Seek, a businessman, filed a lawsuit against the U.S. aircraft maker, saying that the fatal accident would not have been occurred if Boeing had responded to all concerns over unsafe design conditions.

"We are lost in the face of misunderstanding, of many questions. How such a thing could have been happened. How to let occur a drama that could be avoided? How can we remain deaf to all these worries that had been raised and problems which are known?" the mother of three kids was quoted by BFMTV news channel as saying.

A Boeing 737 MAX 8 plane of Ethiopian Airlines crashed shortly after taking off from Addis Ababa on March 10, killing all 157 people on board.

The crash was the second such accident in five months and which involved the Boeing 737 MAX model. In October 2018, Lion Air airline plane crashed in Indonesia. 189 passengers were reported dead in the fatal crash.