What led the Boeing 787 Dreamliner to crash in India with 242 people aboard?

The back of Air India Flight 171 juts out of a building after the Boeing 787-8 Dreamliner crashed in a residential area near the airport in Ahmedabad on Thursday.

"It just appears to me that the airplane is unable to climb," former NTSB investigator Jeff Guzzetti tells NPR. Several explanations could account for that, the aviation expert says.

(Image credit: Sam Panthaky)