The Asiana Airlines Boeing 777 that crashed at San Francisco airport was flying 25 percent below its intended air speed before hitting the ground, US safety officials said on Monday as attention increasingly focused on the actions of the pilots.
All four pilots were being interviewed on Monday by investigators from the National Transportation Safety Board and other agencies, NTSB chairwoman Deborah Hersman said at a news conference in San Francisco. Saturday's crash killed two teenage Chinese passengers and injured more than 180 others.
The pilot at the controls, Lee Kang-kuk, was still training on Boeing 777s, the South Korean airline said, and his supervisor was making his first flight as a trainer. Lee had 43 hours of experience flying the long-range jet, Asiana said.
It was not clear whether the senior pilot, Lee Jung-min, who had clocked 3,220 hours on 777s, had tried to take over to abort the landing.
"It's a training that is common in the global aviation industry. All responsibilities lie with the instructor captain," Yoon Young-doo, the president and CEO of the airline, said at a news conference on Monday at the company headquarters.
The NTSB had said on Sunday the plane was "significantly below" its intended air speed and its crew tried to abort the landing less than two seconds before it hit a seawall in front of the runway.
On Monday, Hersman offered fresh details, saying the plane was flying at just 106 kts (119 mph) immediately prior to the accident - far below the target speed of 137 kts (158 mph). Hersman said on Sunday a stall warning had sounded four seconds before the crash.
Hersman has declined to speculate on the cause of the crash.
Lee, the pilot at the controls, was making his first 777 landing at San Francisco, although he had flown there 29 times previously on other types of aircraft, said South Korean Transport Ministry official Choi Seung-youn. The ministry said Lee, who is in his mid-40s, had almost 10,000 flying hours.
Hersman also confirmed on Monday that the tail of the plane had hit the seawall in front of the runway, and part of the tail and other debris had landed in the water. Bits of the seawall were found far down the runway, Hersman added.
Hersman said her team was investigating all aspects of the crash and the rescue efforts. But she referred to the local coroner's office any questions on whether one of the two girls killed in the accident had been run over by a fire vehicle. Hersman said the cause of death had not yet been determined.
San Francisco fire chief Joanne Hayes White said on Monday: "We have information and evidence to suggest that one of our fire apparatus came into contact with one of the victims at the scene. We're working closely with the NTSB as they conduct their investigation, particularly on this aspect."
The flight recorders corroborated witness accounts and an amateur video indicating the plane came in too low, lifted its nose in an attempt to gain altitude, and then bounced violently along the tarmac after the rear of the aircraft clipped a seawall at the approach to the runway.
Investigators continued collecting evidence as flight operations gradually returned to normal.
DRAMATIC RESCUE SCENE
San Francisco police and fire officials, at an airport news conference, described a dramatic scene in the moments after the crash, with firefighters quickly putting out an initial blaze and clambering up escape slides to help evacuate passengers.
San Francisco police officer Jim Cunningham, who colleagues said raced onto the plane without any protective gear, described freeing passengers as fire began to engulf the aircraft.
"People had injuries and some were just scared to move," Cunningham said. "When we were getting the last couple of people out, I started coughing. The cabin started filling up with smoke. A black billow of smoke came rushing towards us before we were just about to get off the plane."
The two dead girls, Ye Mengyuan and Wang Linjia, were friends from the Jiangshan Middle School in Quzhou, located in the prosperous eastern coastal province of Zhejiang.
They were among a group of 30 students and five teachers from the school on their way to attend a summer camp in the United States, the official Xinhua news agency said.
The Asiana flight from Seoul to San Francisco, with 16 crew and 291 passengers, included several large groups of Chinese students.
Ye, 16, had an easy smile, was an active member of the student council and had a passion for biology, the Beijing News reported. "Responsible, attentive, pretty, intelligent," were the words written about her on a recent school report, it said.
Wang, a year older than Ye, also was known as a good student and was head of her class, the newspaper said.
It was the first fatal accident involving a Boeing 777 since it entered service in 1995.