For Boeing, the Paris Air Show has been a chance to listen to the industry, one Boeing executive says. "What do they think of us? It doesn’t matter what we think of us.”

The preliminary finding gives investigators a new line of inquiry as they study a crash that killed all but one of the plane’s passengers.

Tragedy struck India last week when an Air India Boeing 787 crashed less than a minute after takeoff in Ahmedabad. Air India flight AI171 was bound for London Gatwick and was carrying 230 passengers along with 12 crew members.