Why did you cut off?” one of the pilots asked, as the cockpit voice recorder picked up the bewilderment that would come to characterize the worst air tragedy in a decade. The initial probe of Air India Flight 171’s fatal crash on June 12,

The Boeing 787 Dreamliner crashed into a building less than a minute after take-off from the city of Ahmedabad in western Indian en route to London, killing 241 people on board, along with 19 on the ...