India’s government is urgently inspecting all Boeing 787s after a devastating Air India crash that claimed at least 270 lives this week, the aviation minister said on Saturday, adding that the authorities were investigating all possible causes.

India said that 8 of the 34 Boeing Co. 787 planes in the country have been inspected following the fatal crash of an Air India 787 Dreamliner on Thursday that killed all but one of the 242 people on board.

Viswashkumar Ramesh, 40, the sole survivor of Air India Flight 171, is among the ranks of those spared by fate.