Singapore Airlines flight: 20 flyers in ICU, others describe 'sheer terror of shuddering plane'

Investigators arrived in Bangkok on Wednesday. The US National Transportation Safety Board was sending technical advisors because the incident involved a Boeing plane. Singapore Airlines said 131 passengers and 12 crew members from Flight SQ321 who were well enough to travel were picked up on a special flight and arrived Wednesday at Singapore's Changi Airport. Six crew members and 79 passengers stayed in Bangkok, where the majority were in hospital.