The event, which runs from June 16 to June 20, is the industry's largest trade show, where many aircraft orders are typically placed by airlines.

Air India and Boeing are in the midst of significant turnarounds, but knowing the cause of the crash of Flight 171 will take a lengthy investigation.

There were 242 passengers and crew on board the Boeing 787-8 Dreamliner, including 169 Indian nationals, 53 Britons, seven Portuguese nationals and one Canadian. At least eight local people, including four medical students, living in a residential area of Ahmedabad where the plane came down have also died, a senior health official told the BBC.