Three weeks after an Air India Boeing 787 crashed, investigators are still piecing together what went wrong. In the meantime, aviation safety experts have begun to narrow their thinking.

The families of the victims of the Air India plane crash in Ahmedabad last month have accused the Tata Group-owned airline of "forcing" them to make financial disclosures under the "threat of receiving no advance compensation".

Keystone Law announced that it has been formally retained by a number of British families who lost loved ones in the crash to address “serious questions”