Locator signals from Flight 447's black boxes may fade after June 30, but investigators are likely to keep looking anyway.
Black box data can provide key clues to how the crash happened, information that's vital for future airline safety and design.
There's been a pattern of irregularities linked to the tail fin, but Airbus says it's too soon to know.
Anomalies in on-board computerized controls have destabilized other A330 jets. Airbus sees no link between those cases and Flight 447.
Figuring out what caused the crash could shed light on the safety of composites – new materials replacing traditional metals in many aircraft.
Two passengers' names match those of Al Qaeda suspects, reports say. But experts caution that it's too early to tell if the link is legitimate.
Information from "black boxes" and other sources could help prevent future accidents.
A Brazilian navy ship picked up a backpack, briefcase, and Air France flight 447 boarding pass.
Helicopters can't get to debris field. Brazilian navy ships won't arrive until Wednesday morning.