Prior to landing the tail came off and plane landed upside down.
http://hosted.ap.org/dynamic/stories...07-06-15-14-51A federal aviation official says an Asiana Airlines flight has crashed while landing at San Francisco airport. It was not immediately known whether there were any injuries.
Federal Aviation Administration spokeswoman Lynn Lunsford says the Boeing 777 crashed at San Francisco Airport while landing on Saturday.
Plane was from S. Korea.