I am also assuming (optimistically, perhaps) the BEA will be asking Boeing for assistance, as Boeing have a considerable amount of skin in this game.
Boeing indicates they will be sending a technical team to France to study plane debris:
https://uk.news.yahoo.com/boeing-stu...7.html#FWlDJiH
Not exactly certain when the Boeing team is leaving. I've scoured various web articles to no avail.