While we're sure to see more of these sorts of survivor accounts coming out in the aftermath of today's Asiana Airlines crash at San Francisco International, there are a few early reports from passengers who were on the plane. (Updating with new accounts as they come in.)

Passenger Benjamin Levy, who says he knows the airport "pretty well," believes the pilot came in too low and tried to correct by adding throttle: "We were approaching perfectly well, but we were too low." Levy says water was spraying around before the plane touched down somewhere between the seawall and the landing area. It then bounced up and then came back down:

Mike Barr, an aviation safety expert, former military pilot and accident investigator told the Associated Press that revving the engines just before the crash "would be consistent with a pilot who realized at the last minute that the plane was too low and was increasing power to the engines to try to increase altitude."

Another passenger, a young boy, recounts how the roof of the plane caved in on some of the passengers after it came to a halt next to runway 28L. His account seems to be confirmed by aerial photos of the wreckage:

Passenger Vedpal Singh, who was in the middle of the airplane along with his family, also told the AP that there was no warning from the pilot or crew before the plane hit the ground hard:

"We knew something was horrible wrong," said Singh, who suffered a fractured collarbone and had his arm was in a sling.

"It's miraculous we survived," he said.

A visibly shaken Singh said the plane went silent before people tried to get out anyway they could. His 15-year-old son said luggage tumbled from the overhead bins The entire incident lasted about 10 seconds.

NBC Bay Area also has a edited, shorter version of the audio transmission between Flight 214 and air traffic control at SFO, right at the time of the incident:

View more videos at: http://nbcbayarea.com.

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