Why would both engines of a state-of-the-art Boeing 787 Dreamliner lose power just seconds after takeoff, when everything appears to be okay? This is now the focus of an international investigation, after the disastrous crash of Air India Flight 171 on June 12,

An investigation into a deadly crash last month has focused on control switches that cut off fuel to an Air India Boeing jet after takeoff.

Air India says precautionary inspections have found no issues on the locking mechanism of fuel control switches for select Boeing aircrafts.