A Christian Science perspective.
Black box data can provide key clues to how the crash happened, information that's vital for future airline safety and design.
An internal document shows the airline was aware of the problem more than a year before flight 447 disappeared.
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.
Two weeks after the flight disappeared, investigators have pieced together many clues but still need the black boxes.