Airbus released this information about the missing jet:
Airbus regrets to confirm that an Airbus A330-200 operated by Air France has been lost about 3.5 hours after departure. The aircraft was operating a scheduled service, Flight AF 447, from Rio de Janeiro (Brazil) to Paris (France).
The missing aircraft involved in the accident, registered under the number F-GZCP, was MSN (Manufacturer Serial Number) 660, delivered to Air France from the production line in April 2005. The aircraft had accumulated approximately 18,800 flight hours in some 2,500 flights. It was powered by CF6-80E1 engines. At this time no further factual information is available.
In line with ICAO Annex 13 international convention, Airbus has offered full technical assistance to the investigation board. The investigation remains the entire responsibility of the relevant board and it would be inappropriate for Airbus to enter into any form of speculation into the causes of the accident.
The concerns and sympathy of the employees go to the families, friends and loved ones affected by the accident. [Source]