AHMEDABAD, India — The Air India plane crash this week was one of India’s worst aviation disasters, killing 241 people on board and several people on the ground. Indian authorities said Friday the investigation into the crash was underway and is expected to include experts from the plane’s maker Boeing and U.S. aviation regulators.

Air India flight AI171, a Boeing 787-8 carrying 242 people, crashed after taking off from Ahmedabad on its way to London.

Viswashkumar Ramesh was the only passenger out of 242 people on board the Boeing 787-8 Dreamliner to walk away from the tragedy.