Asiana Plane Crash: Why Didn’t Escape Slides Work?

When Asiana flight 214 crash-landed in San Francisco last summer — after striking a seawall and slamming into the runway — three passengers were killed and more than 180 injured. Since then the National Transportation Safety Board has continued investigating the crash, and one of the big questions is why only two of the Asiana jet’s eight emergency slides deployed properly after the crash. (Two slides inflated inside the cabin, pinning down two flight attendants. Those slides were deflated using axes.)

The video above explores the case.

Meanwhile, the NTSB announced that U.S. transportation safety officials will hold an investigative hearing December 10-11 on the July. It will focus on pilot awareness in highly automated aircraft, emergency response and cabin safety.