A passenger forced to evacuate a plane when an engine caught fire before take-off is suing the airline over physical injuries and mental trauma she claims to have suffered. Choi Yat-ying, 55, a child minder, was crushed by other fleeing passengers after using an inflated chute to slide on to the runway of Tokyo's Narita airport. She has issued a High Court writ against United Airlines, alleging a negligent failure to ensure the company's aircraft was in a safe condition before take-off. Ms Choi was taken to hospital in Japan after the accident on May 12 last year and returned to Hong Kong in a wheelchair the next day. She spent a further 23 days in hospital. She still suffers from post-traumatic stress disorder, depressed moods, insomnia and panic attacks, according to the writ. The victim is also said to have suffered a loss of sensation in the left side of her abdomen and her left leg, as well as pain in her shoulder. The writ claims Ms Choi has lost 25 per cent of her earning capacity as a result of the injuries and trauma. Ms Choi was on a flight to Hong Kong when the fire broke out in one of the engines. All passengers had to evacuate via the inflatable chutes, the writ says. According to the writ, the fire was the result of misconduct or negligence by the airline. It also states that airline staff had failed to give passengers proper instructions for the evacuation.