The flight data recorder showed that as the Boeing 777 approached the runway its pilots were warned that the aircraft was likely to stall and asked to abort the landing.
Seconds later, the plane smashed into the ground, bursting into flames, killing two people and injuring 182 others.
The request to abort the landing was captured on the cockpit voice recorder 1.5 seconds before the plane crashed, National Transportation Safety Board chairwoman Deborah Hersman, who is leading the probe, said yesterday.
The footage showed the nose up with the rear of the plane hitting the ground first, before it rolled on to the concrete, abruptly bounced upward and then spun around 180 degrees.
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The two passengers who died were teenage Chinese girls.
Asked about the speed at which the plane was traveling, Hersman, whose NTSB team is examining the wreckage, stressed that it was well below the recommended 137 knots.
The crash sheared off the plane's landing gear and ripped the tail off. Large portions of the fuselage were burned out in the massive fire that erupted.
The findings came as Asiana said pilot Lee Kang-Kuk, 46, had 43 hours of experience in piloting the 777 and was still undergoing training, although he was had more than 9,000 hours of total flight time under his belt.
Yesterday, Yoon Young-Doo, the CEO of Asiana Airlines, based in Seoul, said "currently we understand that there are no engine or mechanical problems" with the plane, which was bought in 2006.
NTSB chair Hersman refused to comment on whether the flight crew was at fault, noting that the pilots would be interviewed and stressing that it was day one of the investigation.
However she said the plane's low speed triggered an automatic device called a "stick shaker", which warns pilots that a plane is about to stall. The warning came four seconds before the crash -- 2.5 seconds before one of the pilots tried to abort the landing.
Analysts said the pilot's request came far too late.
Asiana Flight 214 originated in Shanghai, and had 307 people on board -- 291 passengers and 16 crew -- after it stopped to pick up passengers in Seoul.