Air India plane crash investigators have found both of the Boeing 787's "black boxes," hopefully brining an understanding of the disaster a step closer.

Air India Flight 171 crashed shortly after takeoff from Ahmedabad, killing 279 – including on-board passengers and people on the ground. A UK-based report suggests pilots made a last-ditch manoeuvre to overcome the sudden and rare dual-engine flameout by deploying the emergency ram air turbine.