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.

Air India has compensated nearly two-thirds of families affected by the June 12 crash, with ongoing support for survivors and long-term assistance.

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”