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In this undated photo made available Monday, July 8, 2013, Ye Mengyuan, left, and Wang Linjia, right, pose for photos with other classmates in the classroom in Jiangshan city in eastern China's Zhejiang province. Chinese state media and Asiana Airlines have identified the two victims of the Asiana Airlines crash at San Francisco International Airport. (AP Photo) ( China San Francisco Airliner Crash Students )

An unidentified family member of one of two Chinese students killed in a crash of an Asiana Airlines' plane on Saturday, cries at the airline's counter as she and other family members check in for a flight to San Francisco, at Pudong International Airport in Shanghai, China, Monday, July 8, 2013. The Asiana flight crashed upon landing Saturday, at San Francisco International Airport, and two of the 307 passengers aboard were killed. (AP Photo/Eugene Hoshiko) ( APTOPIX China US San Francisco Airliner Crash )

Asiana Airlines President and CEO Yoon Young-doo, left, greets unidentified family members of two Chinese students killed in an Asiana Airlines plane crash on Saturday at San Francisco International Airport, at the transit lounge of the Incheon International Airport in Incheon, west of Seoul, South Korea, Monday, July 8, 2013. (AP Photo/Korea Pool via Yonhap) ( South Korea US San Francisco Airliner Crash )

A photograph of 17-year-old Wang Linjia is placed among flowers outside her high school in Jiangshan in China's eastern Zhejiang province on July 8, 2013. Wang Linjia is one of two teenage Chinese girls killed in an Asiana Airlines passenger jet crash at San Francisco airport along with 16 year-old Ye Mengyuan, who were best friends and promising students, state media reported. (Peter Parks/AFP/Getty Images) ( 521211260 )

In this undated photo made available Monday, July 8, 2013, a supporter of Wang Linjia, holds up a photo of her with her name during a talent show at a school in Jiangshan city in eastern China's Zhejiang province. Chinese state media and Asiana Airlines have identified the two victims of the Asiana Airlines crash at San Francisco International Airport girls as Ye Mengyuan and Wang Linjia, students in Zhejiang, an affluent coastal province in eastern China. (AP Photo) ( China San Francisco Airliner Crash Students )

Investigators work in the center doorway of Asiana Airlines 214 at the San Francisco International Airport on Monday, July 8, 2013, in San Francisco, Calif. The Boeing 777 plane crashed as it was landing at the airport on Saturday killing two passengers and injuring hundreds. (Aric Crabb/Bay Area News Group) ( ASIANA AIRLINES FLIGHT 214 CRASH FOLLOW )

An Asiana Airlines jet takes off past the wreckage of a sister plane at the San Francisco International Airport on Monday, July 8, 2013, in San Francisco, Calif. The Boeing 777 plane in the foreground crashed as it was landing at the airport on Saturday, killing two passengers and injuring hundreds. (Aric Crabb/Bay Area News Group) ( ASIANA AIRLINES FLIGHT 214 CRASH FOLLOW )

Asiana Airlines Boeing 777 is engulfed on the tarmac after crash landing at San Francisco International Airport in San Francisco, Calif., on July 6, 2013. Passenger Eugene Anthony Rah released this photograph on July 8. (Eugene Anthony Rah via Reuters)i ( USA-CRASH/ASIANA )

Asiana Airlines flight attendant Kim Ji-yeon, left, stands near a runway with rescued passengers after flight 214 crash landed at San Francisco International Airport on July 6, 2013, in this photo provided by passenger Eugene Anthony Rah released to Reuters on July 8, 2013. (Eugene Anthony Rah via Reuters) ( USA-CRASH/ASIANA )

National Transportation Safety Board Chairwoman Deborah Hersman gives updates on the Asiana Airline crash investigation as Bill English, investigator in charge, right, listens in at a press conference in South San Francisco, Calif., on Monday, July 8, 2013. (Laura A. Oda/Bay Area News Group) ( Update on Asiana Airplane crash by NTSB )

National Transportation Safety Board Chairwoman Deborah Hersman gives updates on the Asiana Airline crash investigation at a press conference in South San Francisco, Calif., on Monday, July 8, 2013. (Laura A. Oda/Bay Area News Group) ( Update on Asiana Airplane crash by NTSB )

Chrissy Emmons of the San Francisco Fire Department speaks at a press conference Monday, July 8, 2013, describing the scene she faced on one of the first fire units to reach the crashed Asiana Airlines jet scene on Saturday at San Francisco Intersnational Airport. (Karl Mondon/Bay Area News Group)

San Francisco police officer Jim Cunningham and Lt. Gaetano Caltagirone wait to speak at a press conference Monday, July 8, 2013, about what the first responders to the crashed Asiana Airlines saw on Saturday at San Francisco International Airport. (Karl Mondon/Bay Area News Group)

Travelers prepare to check in for an Asiana Airlines flight to Korea in the international terminal at San Francisco International Airport on July 8, 2013, in San Francisco, Calif. Two days after Asiana Airlines flight 214 crash landed at San Francisco International Airport, the National Transportation Safety Board is continuing their investigation as to why the plane crashed. (Justin Sullivan/Getty Images) ( 173138952 )

Two women, their faces covered, reported by local media to be survivors of the Asiana Airlines crash in San Francisco, are escorted into a waiting car after disembarking from a flight at Incheon international airport in Seoul, South Korea, on July 8, 2013. Asiana flight OZ2134 arrived with 11 survivors of an accident in which two people were killed and more than 100 injured when an Asiana Airlines Boeing 777 jet crashed and caught fire as it landed short of the runway at San Francisco International Airport. (Ed Jones/AFP/Getty Images) ( 521210667 )

A passenger who was on the crashed Asiana Airline's aircraft, is helped upon her arrival at Incheon Airport on July 8, 2013, in Incheon, South Korea. The pilot of the crashed Asiana plane at San Francisco airport was still "in training" for the Boeing 777 when he attempted to land the aircraft under supervision on Saturday, the South Korean airline said. (Kim Hong-Ji-Pool/Getty Images) ( 173130917 )