Asiana Airlines, South Korea's second-largest flag carrier, said Thursday it will strengthen the simulated training of pilots and increase the number of pilot evaluations.

The move came in response to the deadly crash of an Asiana jet in San Francisco in July that killed three Chinese teenagers and injured more than 180 other people.

Still, the carrier declined to give details on tightened training, calling it a company secret.

The doomed plane was traveling at 103 knots, or 191 kilometers per hour, when its tail struck a seawall at the end of the runway at San Francisco airport. 

It was traveling at a speed much slower than the recommended landing speed of 137 knots, or 254 kilometers per hour, according to South Korean officials.

(Yonhap)