Early investigations into the Air India plane crash, an inquiry that could take a year or more to complete, have revealed that the pilots deployed the Ram Air Turbine (RAT).

As officials are still examining the cause of last week’s deadly Air India Flight A171 crash in Ahmedabad, India, investigators suspect the Boeing aircraft’s emergency power system was possibly operational before the crash,

The tragedy happened as Air India was on the "final climb phrase" of its brand transformation after the Tata buyout