USA Today 
July 11, 2013
Federal crash investigators revealed Wednesday that the pilot flying Asiana Airlines flight 214 told them that he was temporarily blinded by a bright light when 500 feet above the ground.
Deborah Hersman, chairwoman of the National Transportation Safety Board, said it wasn’t clear what could have caused the problem. Asked specifically whether it could have been a laser pointed from the ground, Hersman said she couldn’t say what caused it.
“We need to understand exactly what that is,” Hersman said. “It was a temporary issue.”
Her comments came during a daily press briefing on the Saturday crash of Asiana Flight 214 that left two dead and another 168 injured.