This article is from the source 'bbc' and was first published or seen on . It last changed over 40 days ago and won't be checked again for changes.

You can find the current article at its original source at http://www.bbc.co.uk/news/world-us-canada-23249012

The article has changed 7 times. There is an RSS feed of changes available.

Version 4 Version 5
Asiana 214 pilot realised plane flying too low Asiana 214 pilot realised plane too slow moments from impact
(about 1 hour later)
A senior pilot in the cockpit of Asiana flight 214 realised the plane was too low when it was flying at only 500ft (152m), an official has said. A senior pilot in the cockpit of Asiana flight 214 only realised the plane was flying too slowly when it was 200ft (60m) above the ground, officials say.
Investigators are looking at whether automatic equipment in the cockpit could have contributed to the crash.
The Boeing 777 crash-landed at the San Francisco airport on Saturday, killing two passengers and injuring 180.The Boeing 777 crash-landed at the San Francisco airport on Saturday, killing two passengers and injuring 180.
The pilot at the South Korean plane's controls was about half-way through his Boeing 777 training, an official said. The pilot at the South Korean plane's controls was about half-way through his training, an official said.
Investigators have indicated the plane was flying too slowly when it struck a sea wall before crashing on the runway.
In a press briefing on Tuesday, National Transportation Safety Board Chairman Deborah Hersman cautioned against speculating about the cause of the crash.In a press briefing on Tuesday, National Transportation Safety Board Chairman Deborah Hersman cautioned against speculating about the cause of the crash.
Moments from disasterMoments from disaster
Ms Hersman also revealed that the South Korean airliner's pilots were not tested for drugs or alcohol after the crash, because they do not fall under US regulations. She also revealed that the South Korean airliner's pilots were not tested for drugs or alcohol after the crash, because they do not fall under US regulations.
And she said two flight attendants who had been sitting at the back of the plane were thrown on to the tarmac when the plane's tail broke off as it crashed. They survived but were seriously injured.And she said two flight attendants who had been sitting at the back of the plane were thrown on to the tarmac when the plane's tail broke off as it crashed. They survived but were seriously injured.
The two passengers who died have been identified as Chinese teenagers Ye Mengyuan and Wang Linjia. Police are investigating whether one of them survived the crash only to be run over by an emergency vehicle deploying to the crash site. Ms Hersman said it was not clear whether the auto-throttle, which keeps the plane's speed, had been fully engaged.
She noted that the pilots were ultimately responsible for controlling air speed.
She said the auto-throttle had been programmed for 157mph (253 km/h).
But an instructor pilot "recognised the auto-throttles were not maintaining speed" seconds before the crash, she added.
About eight seconds before impact, the pilot in control pushed the throttles forward to speed up.
Less than two seconds before the crash, he tried to abort the landing, but it was too late.
An account has emerged in recent days of Asiana 214's final moments.An account has emerged in recent days of Asiana 214's final moments.
As the flight bound from Incheon in South Korea approached San Francisco after its 11-hour journey across the Pacific Ocean, three out of four pilots aboard were in the cockpit.As the flight bound from Incheon in South Korea approached San Francisco after its 11-hour journey across the Pacific Ocean, three out of four pilots aboard were in the cockpit.
Lee Kang-kuk, who was still completing his initial training on the Boeing 777 and had never before flown one into San Francisco, was at the controls, Ms Hersman said on Tuesday. Lee Kang-kuk, who was still completing his training on the Boeing 777 and had never before flown one into San Francisco, was at the controls, Ms Hersman said.
Beside him and in command of the aeroplane was an instructor pilot, flying in that capacity for the first time, Ms Hersman said. Beside him and in command of the aeroplane was an instructor pilot, flying in that capacity for the first time.
'Pull back' The plane came in much too shallow. The main landing gear struck a sea wall well short of the end of the runway, and the aircraft's tail was ripped off.
In the jump seat behind the two pilots was a relief first officer who had flown to San Francisco five or six times as a monitoring pilot. A fourth crewman, serving as relief captain, was in the cabin as the plane landed, and was still being interviewed by investigators on Tuesday. The airplane went into a 360-degree spin before coming to rest to the left of the runway.
As the plane approached on a clear day, the pilot in control of the plane was cleared to land. About 34 seconds prior to impact, the plane was flying at 500ft and at about 134 knots (154mph; 248km/h), when the instructor pilot realised it was flying too low. 'Regrettable'
He told the pilot to pull back on the stick, and seconds later he realised that the automated throttle controls, which had been engaged, were not maintaining the correct speed of 137 knots. About eight seconds before impact, the pilot in control pushed the throttles forward to speed up.
Less than two seconds before the crash, the pilot tried to abort the landing, but it was too late. The plane came in much too shallow. The main landing gear struck a sea wall well short of the end of the runway, then the tail struck and was ripped off the rear of the aircraft.
The aeroplane then rotated left and went into 360-degree spin before coming to rest to the left of the runway.
The first officer was hospitalised with a cracked rib, and neither of the two pilots were seriously injured.The first officer was hospitalised with a cracked rib, and neither of the two pilots were seriously injured.
At least 30 surviving passengers remain in San Francisco hospitals, many with serious spinal injuries.At least 30 surviving passengers remain in San Francisco hospitals, many with serious spinal injuries.
'Regrettable' The two Chinese teenagers who died, Ye Mengyuan and Wang Linjia, had been sitting in the rear of the plane, where many of the most seriously injured passengers were seated, but their bodies were found on the tarmac.
The two teenagers who died had been sitting in the rear of the plane, where many of the most seriously injured passengers were seated, but their bodies were found on the tarmac. Police are investigating whether one of them survived the crash only to be run over by an emergency vehicle.
Ms Hersman has said airport surveillance video did not conclusively show whether an emergency vehicle had run over one of the students, and a county coroner has said he would need at least two weeks to rule on the death.Ms Hersman has said airport surveillance video did not conclusively show whether an emergency vehicle had run over one of the students, and a county coroner has said he would need at least two weeks to rule on the death.
Large teams of investigators have begun sifting through the wreckage. Asiana Airlines President Yoon Young-doo arrived in San Francisco on Tuesday to visit victims in hospital and apologise for the crash. He was mobbed by dozens of reporters at the airport.
Asiana Airlines President Yoon Young-doo arrived in San Francisco on Tuesday to visit victims in hospital and apologise for the crash. He was mobbed by dozens of reporters at the San Francisco airport.
Mr Yoon spoke briefly in Korean and was then escorted back into the terminal by police. He is also scheduled to meet with NTSB investigators and tour the accident site.
South Korean President Park Geun-hye has sent a condolence letter to China President Xi Jinping and the families of the two deceased young women, calling the crash "regrettable".South Korean President Park Geun-hye has sent a condolence letter to China President Xi Jinping and the families of the two deceased young women, calling the crash "regrettable".
The Boeing 777 has a good safety record, and this is thought to be the first crash involving fatalities.The Boeing 777 has a good safety record, and this is thought to be the first crash involving fatalities.