"When there was a fire, I was just thinking to extinguish it, not thinking that it's too dangerous or 'What am I going to do?'"
Asiana flight attendants undergo three months of training including emergencies and terrorist training before their first flight.
Lee said she saw her colleagues jump into action to help passengers and injured crew even as a fire burned in the back of the airplane. They popped the first emergency slide that had deployed inside with an ax to free a crew member who was struggling to breathe underneath its weight. Another emergency slide in the back trapped another crew member and was deflated with a kitchen knife, Lee said according to South Korean news station YTN.
One shaken elementary school-aged boy was afraid to go down the emergency slide, but one of the flight attendants lifted him on her back and escaped with him, Lee said.
Earlier this week, Eugene Rah, who was flying his 173rd flight on Asiana Air, told CNN that he saw a 100-pound flight attendant carrying the injured on her back.
Joanne Hayes-White, the San Francisco Fire Chief also praised the flight attendant for being "so composed."
"She was not concerned for her safety, but everyone else's," she said.
Lee said she was the last to leave the plane. And she glanced back.
"The ceiling was coming down and I felt like something was dragging the plane. Behind me I couldn't see, because it looked like there was a wall."
She had no idea the tail had snapped off or how the plane would be nearly engulfed in flames moments after they had escaped.
Two teenagers, both 16, died in the crash. The rest who were on board escaped: 305 of them.