Boeing was generating optimism. Then on Thursday a 787 crashed, raising the specter of fresh problems for Boeing and altering the message it planned to send.

An Air India crash Thursday involved a Boeing 787-8 Dreamliner, which the aircraft manufacturer first delivered 14 years ago.

The trade event is a big draw for the industry every year, as Boeing, Airbus and other aerospace giants host parties, sign deals and show off new aircraft.

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.

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

Air India's Boeing 787 flight crashed in India, killing more than 240 people. Does Air India serve Ohio? Here's what we know.

NEW DELHI (Reuters) -Air India and the Indian government are looking at several aspects of the Boeing 787-8 crash in Ahmedabad, including issues with the jet's engine thrust, its flaps, and why its landing gear remained open, a source with direct knowledge told Reuters on Friday.

The Air India flight fell from the sky on Thursday and killed at least 270 people in Gujarat state, officials said Saturday.