777 tumbles in SFO landing

http://www.theverge.com/2013/7/6/449904 ... seems-fine

"I just crash landed at SFO. Tail ripped off. Most everyone seems fine. I'm ok. Surreal..."
David Eun
A Boeing 777 operated by Asiana Airlines crash-landed at San Francisco International Airport (SFO). Immediately, dozens of tweets began flowing with news and firsthand accounts from the airport — including Samsung executive David Eun, who says he was aboard the downed plane, calling the experience "surreal" and reporting that "most everyone seems fine." Several pictures of the 777 show the vertical stabilizer completely missing, emergency slides deployed, and black smoke billowing above.
A witness to the crash, Anthony Castorani, told CNN that when the aircraft touched down on the runway there was a large fireball and the plane "began cartwheeling" before one of its wings broke off.
The cause of the accident is unknown and will likely take some time to investigate, but it's notable that the 777's only other major failure — a downed British Airways aircraft at London Heathrow — crashed under similar circumstances on final approach, resulting from a clogged fuel filter that has since been redesigned and retrofitted on existing aircraft using Rolls Royce's Trent 800 series engines. It's not immediately clear what type of engine Asiana is using on its 777 fleet.

"I just crash landed at SFO. Tail ripped off. Most everyone seems fine. I'm ok. Surreal..."
David Eun
A Boeing 777 operated by Asiana Airlines crash-landed at San Francisco International Airport (SFO). Immediately, dozens of tweets began flowing with news and firsthand accounts from the airport — including Samsung executive David Eun, who says he was aboard the downed plane, calling the experience "surreal" and reporting that "most everyone seems fine." Several pictures of the 777 show the vertical stabilizer completely missing, emergency slides deployed, and black smoke billowing above.
A witness to the crash, Anthony Castorani, told CNN that when the aircraft touched down on the runway there was a large fireball and the plane "began cartwheeling" before one of its wings broke off.
The cause of the accident is unknown and will likely take some time to investigate, but it's notable that the 777's only other major failure — a downed British Airways aircraft at London Heathrow — crashed under similar circumstances on final approach, resulting from a clogged fuel filter that has since been redesigned and retrofitted on existing aircraft using Rolls Royce's Trent 800 series engines. It's not immediately clear what type of engine Asiana is using on its 777 fleet.