Air France said the message was the last it heard from Flight 447. While what happened to the plane has not been determined, a Pentagon official said he'd seen no indication of terrorism or foul play.

FERNANDO DE NORONHA, Brazil — An airplane seat, a fuel slick and pieces of white debris scattered over three miles of ocean marked the site in the mid-Atlantic Tuesday where Air France Flight ...

For example, when Air France Flight 447 disappeared over the Atlantic in 2009, it took almost two years to recover the black box from a depth of 13,000 feet.