Here's a look at key developments in the crash landing of an Asiana Airlines Boeing 777 in San Francisco on Saturday. The crash killed two people and injured more than 180 others.
-- Three of four runways at San Francisco International Airport were back in service Sunday, said John Martin, airport director.
-- The cockpit voice recorder reveal the pilots called to initiate a "go-around" at another landing 1.5 second before impact, NTSB Chairwoman Deborah Hersman told reporters Sunday.
-- "There is no discussion of any aircraft anomalies or concerns with the approach," said Hersman. A call from a crew member to increase speed was made approximately seven seconds before impact, she said.
-- Four seconds prior to impact, crew members were alerted to the fact that they were approaching a stall, Hersman said.
-- The target speed for the approach of Asiana Flight 214 was 137 knots, and the crew can be heard on the cockpit voice recorder acknowledging the speed, she said. "The speed was significantly below 137 knots, and we are not talking about a few knots."
PREVIOUSLY REPORTED DEVELOPMENTS
-- The flight originated in Shanghai, China.
-- The plane was traveling from Incheon International Airport in Seoul, South Korea, to San Francisco -- a 10-hour direct flight.
-- On board were 291 passengers and 16 flight crew members.
-- All 307 have been accounted for.
--The 291 passengers included 61 Americans, 77 South Koreans, 141 Chinese and one Japanese, the airline said.
-- Four pilots alternating in shifts operated the plane, Asiana Airlines said.
-- The pilot flying the plane at the time of the crash was a veteran who had been flying for Asiana since 1996.
-- Two 16-year-old girls who were killed were identified as Ye Mengyuan and Wang Linjia, both Chinese nationals, Asiana Airlines said Sunday.
-- The two fatalities were found outside the plane. San Francisco Fire Chief Joanne Hayes-White said it was her understanding that they were found on the runway.
-- Doctors have seen a wide range of injuries, including "large amounts of abdominal injuries, a huge amount of spine fractures, some of which include paralysis and head trauma," said Dr. Margaret Knudson, chief of surgery at San Francisco General Hospital. Doctors have also treated "patients who had severe road rash, suggesting that they were dragged," she said.
-- Patients who are awake at the hospital have all reported that they were sitting at the back of the plane, Knudson said.
-- A total of 182 were taken to hospitals, some with severe injuries, others for a checkup. The remaining 123 people on the plane exited the airport through customs, Hayes-White said.