Airbus has disclosed that the Germanwings A320 involved in the accident in the French Alps had accumulated 58,300h.
It confirms the airframe as MSN147, registered D-AIPX. The aircraft was originally delivered to Lufthansa, the parent of Germanwings, in 1991.
Airbus says the aircraft had conducted around 46,700 flights. It has not given any information about its maintenance record.
Germanwings states that there were 144 passengers and six crew members on board flight 4U9525 from Barcelona to Dusseldorf.
France's BEA will take charge of the investigation into the accident. Airbus says it will provide support to the inquiry with a group of technical advisers.