NTSB Chairwoman Jennifer Homendy said there clearly was an issue with identifying trends in the data the Federal Aviation Administration collects. Congress delved deeper into the deadly crash during a Senate committee hearing that was underway Thursday morning.

A pilot and his two young daughters have survived on the wing of a plane for about 12 hours after it crashed and was partially submerged in an icy Alaska lake

They spent a long, cold, dark, wet night out on top of a wing of an airplane that they weren’t planning on,” Godes said.