The flight recorders for Ethiopian Airlines flight 302 have arrived in Paris, where they will be analyzed for potential clues into Sunday's plane crash.

A French Bureau of Enquiry and Analysis for Civil Aviation Safety spokesman said that the two black boxes would contain flight parameters as well as conversations in the cockpit.

He said there were less than a dozen laboratories around the world capable of reading the devices.

"When the black boxes have not (been damaged), the tapes or hard disks are intact, the data is easily recoverable. However, it also happens that entire passages of the recording are more or less damaged," he said, adding that the analysis could take days.

Ethiopia had requested France's assistance investigating the material as their country didn't have the equipment necessary.